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1
Advanced Electron Linacs
2005-02-14

The research into advanced acceleration concepts for electron linear accelerators being pursued at SLAC is reviewed. This research includes experiments in laser acceleration, plasma wakefield acceleration, and mmwavelength RF driven accelerators.

DOE Information Bridge

2
Requirements of a proton beam accelerator for an accelerator-driven reactor.
1997-01-01

When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator wa...

National Technical Information Service (NTIS)

3
Prototype front-end accelerator for Accelerator-Driven Transmutation Technologies.
1994-01-01

The Accelerator Performance Demonstration Facility is the front-end prototype of a CW accelerator useful for accelerator-driven technologies. Its purpose is for evaluating the reliability, availability, and maintainability of a high-current and high-power...

National Technical Information Service (NTIS)

4
A Laser-Driven Pellet Accelerator for CTR Fuel Injection.
1977-08-01

... Accession Number : ADA057287. Title : A Laser-Driven Pellet Accelerator for CTR Fuel Injection. Descriptive Note : Master's thesis,. ...

DTIC Science & Technology

5
Photonic Crystal Laser-Driven Accelerator Structures.
2007-01-01

Laser-driven acceleration holds great promise for significantly improving accelerating gradient. However, scaling the conventional process of structure-based acceleration in vacuum down to opticalerent kind of structure. We require an optical waveguide th...

National Technical Information Service (NTIS)

6
Design Considerations for Plasma Accelerators Driven by Lasers or Particle Beams
2010-06-01

Plasma accelerators may be driven by the ponderomotive force of an intense laser or the space-charge force of a charged particle beam. The implications for accelerator design and the different physical mechanisms of laser-driven and beam-driven plasma acceleration are ...

Energy Citations Database

7
Theoretical Investigations of Plasma-Based Accelerators and Other Advanced Accelerator Concepts
2004-05-21

Theoretical investigations of plasma-based accelerators and other advanced accelerator concepts. The focus of the work was on the development of plasma based and structure based accelerating concepts, including laser-plasma, plasma channel, and microwave driven plasma accelerators.

DOE Information Bridge

8
Pseudoresonant Laser Wakefield Acceleration Driven by lO.6 ...
2005-02-01

... Descriptors : *CARBON DIOXIDE LASERS, LASER APPLICATIONS, RAMAN SCATTERING, ELECTRON ACCELERATORS, LINEAR ...

DTIC Science & Technology

9
Pseudoresonant Laser Wakefield Acceleration Driven by lO.6 ...
2005-02-01

... Pseudoresonant Laser Wakefield Acceleration ... these mechanisms have practical limits to the max - imum length of the acceleration regions. ...

DTIC Science & Technology

10
Katsouleas and Dawson respond
1984-09-03

A reply to the comment on unlimited electrons acceleration in laser-driven plasma waves is presented.

Energy Citations Database

11
An acceleration mechanism for loop transients in the outer corona
1981-01-01

The heliocentrifugal motion of coronal loop transients is likely driven largely by the buoyant force

NASA Technical Reports Server (NTRS)

12
Requirements of a proton beam accelerator for an accelerator-driven reactor
1997-12-31

When the authors first proposed an accelerator-driven reactor, the concept was opposed by physicists who had earlier used the accelerator for their physics experiments. This opposition arose because they had nuisance experiences in that the accelerator was not reliable, and very often disrupted their work as the ...

DOE Information Bridge

13
Energy Efficiency of Laser Driven, Structure Based Accelerators
2004-04-21

The acceleration efficiency of a laser driven linear accelerator is analyzed. The laser power, loss factor and impedances determine the maximum charge that can be accelerated and the efficiency of that acceleration. The accelerator structure can be incorporated into a laser ...

DOE Information Bridge

14
Uncertainty assessment for accelerator-driven systems.
1999-01-01

The concept of a subcritical system driven by an external source of neutrons provided by an accelerator ADS (Accelerator Driver System) has been recently revived and is becoming more popular in the world technical community with active programs in Europe,...

National Technical Information Service (NTIS)

15
An Oblique-Detonation-Wave, Ram-Accelerator-Driven Hypersonic Test ...

This project will analyze and design a novel oblique-detonation-wave (ODW), ram- accelerator-driven propulsion concept for the acceleration of tube-launched ...

NASA Website

16
An introduction to acceleration mechanisms
1987-05-01

This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, Acceleration, Plasma Beat Wave Acceleration, Inverse Free ...

DOE Information Bridge

17
Technologies using accelerator-driven targets under development at BNL
1995-09-15

Recent development work conducted at Brookhaven National Laboratory on technologies which use particle accelerator-driven targets is summarized. These efforts include development of the Spallation-Induced Lithium Conversion (SILC) Target for the Accelerator Production of Tritium (APT), the Accelerator-Driven Assembly for Plutonium ...

Energy Citations Database

18
Technologies using accelerator-driven targets under development at BNL
1994-08-01

Recent development work conducted at Brookhaven National Laboratory on technologies which use particle accelerator-driven targets is summarized. These efforts include development of the Spallation-Induced Lithium Conversion (SILC) Target for the Accelerator Production of Tritium (APT), the Accelerator-Driven Assembly for Plutonium ...

DOE Information Bridge

19
Laser-driven cyclotron autoresonance accelerator
2001-05-01

Simulations are presented for a laser-driven cyclotron autoresonance accelerator with a practical guide magnetic field, as produced by a single coil. Effects that are investigated include acceleration in the non-resonant magnetic field profile, reduced acceleration due to misalignment between the magnetic field ...

NASA Astrophysics Data System (ADS)

20
Laser-driven electron accelerators
1981-01-01

Several accelerator designs are discussed in search for a greater than 1 TeV electron accelerator. The types considered are linear accelerators, the inverse Cerenkov accelerators, the wiggler (inverse free electron laser), plasma accelerators, and the grating accelerator. A ...

Energy Citations Database

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21
Recirculating induction accelerators for inertial fusion: Prospects and status.
1995-01-01

The US is developing the physics and technology of induction accelerators for heavy-ion beam-driven inertial fusion. The recirculating induction accelerator repeatedly passes beams through the same set of accelerating and focusing elements, thereby reduci...

National Technical Information Service (NTIS)

22
Progress on Laser Plasma Accelerators.
1986-01-01

Several laser plasma accelerator schemes are reviewed, with emphasis on the Plasma Beat Wave Accelerator (PBWA). Theory indicates that a very high acceleration gradient, of order 1 GeV/m, can exist in the plasma wave driven by the beating lasers. Experime...

National Technical Information Service (NTIS)

23
New approach to modeling linear accelerator systems.
1994-01-01

A novel computer code is being developed to generate system level designs of radiofrequency ion accelerators with specific applications to machines of interest to Accelerator Driven Transmutation Technologies (ADTT). The goal of the Accelerator System Mod...

National Technical Information Service (NTIS)

24
Dynamics of Laser-Driven, Ablatively Accelerated Targets.
1981-01-01

The characteristics of ablation plasma from planar targets, driven by long Nd:glass laser pulses (4 nsec,

National Technical Information Service (NTIS)

25
Dynamics of Laser Driven, Ablatively Accelerated Targets.
1981-01-01

The characteristics of ablation plasma from planar targets, driven by long Nd:glass laser pulses (4 nsec,

National Technical Information Service (NTIS)

26
A brushless dc torquer-driven reaction wheel for spacecraft attitude ...

motor-driven flywheels that are accelerated to apply continuously controllable torques to a spacecraft by means ... sired spacecraft control system response time. ...

NASA Website

27
Issues regarding acceleration in crystals
1992-12-01

Both self-acceleration and laser-acoustic acceleration in crystals are considered. The conduction electrons in the crystal are treated as a plasma and are the medium through which the acceleration takes place. Self-acceleration is the possible acceleration of part of a bunch due to plasma ...

DOE Information Bridge

28
Reliable-linac design for accelerator-driven subcritical reactor systems.
2002-01-01

Accelerator reliability corresponding to a very low frequency of beam interrupts is an important new accelerator requirement for accelerator-driven subcritical reactor systems. In this paper we review typical accelerator-reliability requirements and discuss possible methods for meeting these goals with ...

Energy Citations Database

29
Prospects For and Progress Towards Laser-Driven Particle Therapy Accelerators
2010-11-01

Recent advances in laser-ion acceleration have motivated research towards laser-driven compact accelerators for medical therapy. Realizing laser-ion acceleration for medical therapy will require adapting the medical requirements to the foreseeable laser constraints, as well as advances in ...

NASA Astrophysics Data System (ADS)

30
A prototype front-end accelerator for accelerator-driven transmutation technologies
1995-09-15

The Accelerator Performance Demonstration Facility is the front-end prototype of a CW accelerator useful for accelerator-driven technologies. Its purpose to evaluate the reliability, availability, and maintainability of a high-current and high-power machine. This paper describes the design and technology development of the facility.

Energy Citations Database

31
A prototype front-end accelerator for Accelerator-Driven Transmutation Technologies
1994-08-01

The Accelerator Performance Demonstration Facility is the front-end prototype of a CW accelerator useful for accelerator-driven technologies. Its purpose is for evaluating the reliability, availability, and maintainability of a high-current and high-power machine. In this paper, design and technology development of the facility will be ...

DOE Information Bridge

32
Power production and ADS
2010-03-01

We describe the power production process in Accelerator Driven Sub-critical systems employing Thorium-232 and Uranium-238 as fuel and examine the demands on the power of the accelerator required.

Energy Citations Database

33
Power Production and ADS
2010-06-01

We describe the power production process in Accelerator Driven Sub-critical systems employing Thorium-232 and Uranium-238 as fuel and examine the demands on the power of the accelerator required.

NASA Astrophysics Data System (ADS)

34
Introduction to Acceleration Mechanisms.
1987-01-01

This paper discusses the acceleration of charged particles by electromagnetic fields, i.e., by fields that are produced by the motion of other charged particles driven by some power source. The mechanisms that are discussed include: Ponderamotive Forces, ...

National Technical Information Service (NTIS)

35
Analysis of a Rail Gun Plasma Accelerator.
1982-04-01

... Title : Analysis of a Rail Gun Plasma Accelerator. ... Abstract : A model is developed to study the characteristics of an arc-driven rail gun. ...

DTIC Science & Technology

36
An energy inventory in a coaxial plasma accelerator driven by a pulse line energy source.
1965-01-01

Energy measurement in coaxial plasma accelerator determining current, voltage on gun and at open end

NASA Technical Reports Server (NTRS)

37
The neutronics of an Accelerator-Driven Energy Amplifier
1995-09-15

This study has been focused on an Accelerator-Driven Energy Amplifier, based on the concept proposed by the CERN-group. To analyze the performance of this system the extensive optimization of the core lattice was done, the temperature coefficients of reactivity were investigated, reactivity budget and power distribution were estimated.

Energy Citations Database

38
Technologies using accelerator-driven targets under development at BNL.
1994-01-01

Recent development work conducted at Brookhaven National Laboratory on technologies which use particle accelerator-driven targets is summarized. These efforts include development of the Spallation-Induced Lithium Conversion (SILC) Target for the Accelerat...

National Technical Information Service (NTIS)

39
System and safety studies of accelerator driven transmutation systems. Annual report 1997.
1997-01-01

In November 1996, SKB started financing of the project 'System and safety studies of accelerator driven transmutation systems and development of a spallation target'. The aim of the project was stated as: (1) Development of a complete code for simulation ...

National Technical Information Service (NTIS)

40
Overview of accelerator-driven transmutation technology.
1994-01-01

Accelerator-Driven Transmutation Technology, or ADT(sup 2), is a collection of programs that share a common theme - they each have at their heart an intense source of neutrons generated by a high-energy proton beam striking a heavy metal target. The beam ...

National Technical Information Service (NTIS)

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41
Nuclear physics information needed for accelerator driven transmutation of nuclear waste.
1991-01-01

There is renewed interest in using accelerator driven neutron sources to address the problem of high-level long-lived nuclear waste. Several laboratories have developed systems that may have a significant impact on the future use of nuclear power, adding ...

National Technical Information Service (NTIS)

42
New concept for accelerator driven transmutation of nuclear wastes.
1991-01-01

A new concept for an accelerator-driven transmutation system is described. The central feature of the concept is generation of intense fluxes of thermal neutrons. In the system all long-lived radionuclides comprising high-level nuclear waste can be transm...

National Technical Information Service (NTIS)

43
Neutron Transport Methods for Accelerator-Driven Systems. Final Report.
2005-01-01

The objective of this project has been to develop computational methods that will enable more effective analysis of Accelerator Driven Systems (ADS). The work is centered at the University of Missouri at Rolla, with a subcontract at Northwestern Universit...

National Technical Information Service (NTIS)

44
Microfabrication of Laser-Driven Accelerator Structures
2003-04-07

We discuss the potential for using microfabrication techniques for laser-driven accelerator construction. We introduce microfabrication processes in general, and then describe our investigation of a particular trial process. We conclude by considering the issues microfabrication raises for possible future structures.

DOE Information Bridge

45
Liner-Driven Ring Accelerators.
1984-01-01

We present an investigation of a class of particle accelerators driven by the mechanical implosion of an electrically conducting cylindrical liner onto a ring of charged particles embedded in an axial magnetic field. We have performed a number of two-dime...

National Technical Information Service (NTIS)

46
Laser-Driven Particle Accelerators. Final Technical Report.
1984-01-01

Theoretical and experimental studies have been performed on laser-driven particle accelerators. The theoretical work primarily consisted of detailed analysis and computer simulation of the stimulated Cherenkov interaction. Additional analysis was also don...

National Technical Information Service (NTIS)

47
Kinetics of accelerator driven devices.
1994-01-01

Kinetic calculations were made to show that subcritical accelerator driven devices are robust and stable. The calculations show that large changes in reactivity that would lead to an uncontrollable excursion in a reactor would lead only to a new power lev...

National Technical Information Service (NTIS)

48
Development and analysis of a metal-fueled accelerator-driven burner.
1994-01-01

The purpose of this paper is to compare the safety characteristics of an accelerator driven metal fueled fast system to a critical core on a consistent basis to determine how these characteristics are affected solely by subcritically of the system. To acc...

National Technical Information Service (NTIS)

49
Consequences of return to power after a beam interruption in the blanket of an accelerator driven system..
2001-01-01

A sudden drop in power after a beam interruption leads to thermal fatigue effects in structural components in the blanket of an accelerator driven system. These thermal fatigue effects limit component lifetimes. A sudden return to power after a beam inter...

National Technical Information Service (NTIS)

50
Accelerator-driven reactor for meeting future energy demand.
1997-01-01

Fissile fuel can be produced at a high rate using an accelerator-driven Pu-fueled subcritical fast reactor which avoids encountering a shortage of Pu during a high growth rate in the production of nuclear energy. Furthermore, the necessity of the early in...

National Technical Information Service (NTIS)

51
Accelerator driven systems: Energy generation and transmutation of nuclear waste. Status report.
1997-01-01

The report includes 31 individual contributions by experts from six countries and two international organizations in different areas of the accelerator driven transmutation technology intended to be applied for the treatment of highly radioactive waste an...

National Technical Information Service (NTIS)

52
Solid Antimatter.
1986-01-01

The problems of creating solid antimatter are listed and examined. Laser driven accelerators may reduce the technological and financial magnitude of the task.

National Technical Information Service (NTIS)

53
Shock-Free Acceleration of Laser Driven Targets
1992-12-10

... results indicate that the perturbation level at the beginning of the ... reach the front and rear free surfaces, they are ... front surface of the target and at the ...

DTIC Science & Technology

54
Safety Performance and Issues
2010-06-01

This paper identifies the basic safety functions in nuclear reactor design, and the safety design issues for accelerator-driven subcritical reactors.

NASA Astrophysics Data System (ADS)

55
Query-Driven Visualization Accelerates Scientific Insight

complexity. � Increased cognitive workload. Our approach to high performance visualization is to focus

E-print Network

56
Outstanding Issues

threshold energy than parallel shocks? " How low in the corona can. CME-driven shocks form and accelerate particles? to what energies? ...

NASA Website

57
Inside Wallops - NASA

Jan 25, 1999 ... determine the source mechanisms for plasma acceleration in the topside ... Exchange Dynamics Study (FEDS.98), was driven by two factors. ...

NASA Website

58
Dynamics of Laser Driven, Ablatively Accelerated Targets
1981-05-08

... LASER BEAMS, *NUCLEAR FUSION, ABLATION, PLASMAS ... LASERS, MOMENTUM TRANSFER, PLASMA DIAGNOSTICS, FOILS(MATERIALS ...

DTIC Science & Technology

59
Program to Research Laser-Driven Thermionic Electron Sources for Free Electron Lasers.
1988-01-01

This is the Final Report on the research and development of high brightness pulse laser driven thermionic electron sources. Enhanced coupling of electron beam energies to radiative fields in accelerator-driven free-electron lasers requires injector cathod...

National Technical Information Service (NTIS)

60
Some basic advantages of accelerator-driven transmutation of minor actinides and iodine-129
1995-09-15

The blanket of accelerator-driven facility designed for I-129 transmutation doesn't contain fissile and fertile materials. So the overheating of iodine compounds transmuted is practically excluded. The efficacy of I-129 transmutation is estimated. Curium being accumulated in nuclear reactors can be incinerated in blanket of accelerator-driven ...

Energy Citations Database

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61
Proliferation Potential of Accelerator-Drive Systems: Feasibility Calculations
1998-11-01

Accelerator-driven systems for fissile materials production have been proposed and studied since the early 1950s. Recent advances in beam power levels for small accelerators have raised the possibility that such use could be feasible for a potential proliferator. The objective of this study is to review the state of technology development for ...

DOE Information Bridge

62
Structure Loaded Vacuum Laser-Driven Particle Acceleration Experiments at SLAC
2007-04-09

We present an overview of the future laser-driven particle acceleration experiments. These will be carried out at the E163 facility at SLAC. Our objectives include a reconfirmation of the proof-of-principle experiment, a staged buncher laser-accelerator experiment, and longer-term future experiments that employ dielectric ...

DOE Information Bridge

63
Important requirements for RF generators for Accelerator-Driven Transmutation Technologies (ADTT).
1994-01-01

All Accelerator-Driven Transmutation applications require very large amounts of RF Power. For example, one version of a Plutonium burning system requires an 800-MeV, 80-mA, proton accelerator running at 100% duty factor. This accelerator requires approxim...

National Technical Information Service (NTIS)

64
Collective acceleration of protons by the plasma waves in a counterstreaming electron beam
1987-03-01

A novel advanced accelerator is proposed. The counterstreaming electron beam accelerator relies on the same physical mechanism as that of the plasma accelerator but replaces the stationary plasma in the plasma accelerator by a magnetized relativistic electron beam, drifting antiparallel to the driving source and ...

DOE Information Bridge

65
Uniformity of Laser-Driven, Ablatively Accelerated Targets.
1981-01-01

A double-target technique is used to measure the uniformity with which laser irradiated thin foil targets are ablatively accelerated. Studies of the effects of laser nonuniformities on the target acceleration reveal an increase in smoothing (symmetrizatio...

National Technical Information Service (NTIS)

66
Transmutation and energy-production with high power accelerators
1995-07-01

Accelerator-driven transmutation offers attractive new solutions to complex nuclear problems. This paper outlines the basics of the technology, summarizes the key application areas, and discusses designs of and performance issues for the high-power proton accelerators that are required.

DOE Information Bridge

67
Status of development of actinide blanket processing flowsheets for accelerator transmutation of nuclear waste.
1993-01-01

An accelerator-driven subcritical nuclear system is briefly described that transmutes actinides and selected long-lived fission products. An application of this accelerator transmutation of nuclear waste (ATW) concept to spent fuel from a commercial nucle...

National Technical Information Service (NTIS)

68
SILC target design for accelerator production of tritium (APT).
1994-01-01

An accelerator-driven spallation neutron-source target/blanket system has been developed for the production of tritium. The system employs a proton linear accelerator, and a lead neutron-producing target, surrounded by tritium-producing blankets based on ...

National Technical Information Service (NTIS)

69
Rail Accelerators for Space Transportation: An Experimental Investigation.
1986-01-01

An experimental program was conducted at the Lewis Research Center with the objective of investigating the technical feasibility of rail accelerators for propulsion applications. Single-stage, plasma driven rail accelerators of small (4 by 6 mm) and mediu...

National Technical Information Service (NTIS)

70
Proliferation Potential of Accelerator-Drive Systems: Feasibility Calculations.
1998-01-01

Accelerator-driven systems for fissile materials production have been proposed and studied since the early 1950s. Recent advances in beam power levels for small accelerators have raised the possibility that such use could be feasible for a potential proli...

National Technical Information Service (NTIS)

71
Modified Betatron Accelerator Experiment.
1984-01-01

Contents: A Free Electron Laser Driven by a Long Pulse Induction Linac; Special Focus Program Advanced Accelerator Modified Betatron Design REview Coil DEsign; External Injection into a High Current Modified Betatron Accelerator; Electron Drift in a Linea...

National Technical Information Service (NTIS)

72
Los Alamos aqueous target/blanket system design for the accelerator transmutation of waste concept.
1993-01-01

The Los Alamos Accelerator Transmutation of Nuclear Waste (ATW) concept uses an accelerator driven neutron source (target) surrounded by a moderator and multiplying medium (blanket) for the transmutation of actinide and fission product waste. The referenc...

National Technical Information Service (NTIS)

73
Laser-driven electron accelerators
1981-01-01

The following possibilities are discussed: inverse free electron laser (wiggler accelerator); inverse Cerenkov effect; plasma accelerator; dielectric tube; and grating linac. Of these, the grating acceleraton is considered the most attractive alternative. (GHT)

DOE Information Bridge

74
Inverse-Transition Radiation Laser Acceleration Experiments at SLAC.
2008-01-01

We present a series of laser-driven particle acceleration experiments that are aimed at studying laser-particle acceleration as an inverse-radiation process. To this end we employ a semi-open vacuum setup with a thin planar boundary that interacts with th...

National Technical Information Service (NTIS)

75
Horizon: New RF Power Sources for Linear Accelerators.
1988-01-01

In the past, linear accelerators at frequencies below 3 GHz have been driven by klystrons or gridded tubes, with most of the small electron accelerators using conventional magnetrons. During the past few years, there have been several new rf amplifier dev...

National Technical Information Service (NTIS)

76
Hardware accelerator array for logic simulation.
1991-01-01

Hardware acceleration exploits the parallelism inherent in large circuit simulations to achieve significant increases in performance. Simulation accelerators have been developed based on the compiled code algorithm or the event-driven algorithm. The great...

National Technical Information Service (NTIS)

77
Argonne Plasma Wake-Field Acceleration Experiments.
1989-01-01

Four years after the initial proposal of the Plasma Wake-field Accelerator (PWFA), it continues to be the object of much investigation, due to the promise of the ultra-high accelerating gradients that can exist in relativistic plasma waves driven in the w...

National Technical Information Service (NTIS)

78
Application of picosecond CO/sub 2/ lasers to particle accelerators
1987-01-01

Various advanced accelerator concepts invoke lasers for the generation of very-high-gradient accelerating fields. We introduce the subject and review the application of picosecond CO/sub 2/ lasers to one such scheme: laser-driven open microstructures.

DOE Information Bridge

79
Advanced Accelerators.
1988-01-01

This report discusses the suitability of four novel particle acceleration technologies for multi-TeV particle physics machines: laser driven linear accelerators (linac), plasma beat-wave devices, plasma wakefield devices, and switched power and cavity wak...

National Technical Information Service (NTIS)

80
Optical Phase Locking of Modelocked Lasers for Particle Accelerators
2006-02-17

Particle accelerators require precise phase control of the electric field through the entire accelerator structure. Thus a future laser driven particle accelerator will require optical synchronism between the high-peak power laser sources that power the accelerator. The precise laser ...

DOE Information Bridge

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81
Experimental Determination of Damage Threshold Characteristics of IR Compatible Optical Materials
2011-05-20

The accelerating gradient in a laser-driven dielectric accelerating structure is often limited by the laser damage threshold of the structure. For a given laser-driven dielectric accelerator design, we can maximize the accelerating gradient by choosing the best combination ...

Energy Citations Database

82
A role of accelerator-driven reactor to meet future energy demands
1998-03-01

Fissile fuel can be produced at a high rate using an accelerator driven Pu fueled fast reactor operated at deep subcriticality; this approach avoids encountering a shortage of Pu during a high rate of growth in the production of nuclear energy. Slightly reducing the acceleration field minimizes the tripping of the beam and the ...

Energy Citations Database

83
Monoenergetic proton beams accelerated by a radiation pressure driven shock.
2011-01-04

We report on the acceleration of impurity-free quasimononenergetic proton beams from an initially gaseous hydrogen target driven by an intense infrared (?=10 ?m) laser. The front surface of the target was observed by optical probing to be driven forward by the radiation pressure of the laser. A proton beam of ?MeV energy was ...

PubMed

84
Laser acceleration with open waveguides
1999-03-01

A unified framework based on solid-state open waveguides is developed to overcome all three major limitations on acceleration distance and hence on the feasibility of two classes of laser acceleration. The three limitations are due to laser diffraction, acceleration phase slippage, and damage of waveguide structure by high power laser. ...

Energy Citations Database

85
Laser Acceleration in Vacuum and Gases with Capillary Waveguide
1999-02-01

A unified framework is developed to overcome all three major limitations on acceleration and distance and hence on the feasibility of two classes of laser acceleration. The three limitations are due to laser diffraction, acceleration phase slippage, and structure damage by high power laser if solid-state optical waveguide is used. The ...

DOE Information Bridge

86
Progress on laser plasma accelerators
1986-04-01

Several laser plasma accelerator schemes are reviewed, with emphasis on the Plasma Beat Wave Accelerator (PBWA). Theory indicates that a very high acceleration gradient, of order 1 GeV/m, can exist in the plasma wave driven by the beating lasers. Experimental results obtained on the PBWA experiment at UCLA confirms ...

DOE Information Bridge

87
LINAC for ADS application - accelerator technologies
2009-01-01

Sifnificant high-current, high-intensity accelerator research and development have been done in the recent past in the US, centered primarily at Los Alamos National Laboratory. These efforts have included designs for the Accelerator Production of Tritium Project, Accelerator Transmutation of Waste, and Accelerator ...

Energy Citations Database

88
Chinese Efforts in High Intensity Proton Accelerators
2010-06-01

High intensity proton accelerators have two important applications in China in recent years: Accelerator Driven Sub-critical System for nuclear waste transmutation and China Spallation Neutron Source. This paper focuses on the R&D activities of the key technology of high intensity proton accelerators in China, ...

NASA Astrophysics Data System (ADS)

89
Fermi Acceleration in driven relativistic billiards
2011-08-01

We show numerical experiments of driven billiards using special relativity. We have the remarkable fact that for the relativistic driven circular and annular concentric billiards, depending on initial conditions and parameters, we observe Fermi Acceleration, absent in the Newtonian case. The velocity for these cases tends to the speed ...

NASA Astrophysics Data System (ADS)

90
Liner-driven ring accelerators
1984-01-01

We present an investigation of a class of particle accelerators driven by the mechanical implosion of an electrically conducting cylindrical liner onto a ring of charged particles embedded in an axial magnetic field. We have performed a number of two-dimensional particle-in-cell simulations of such electron ring accelerators in both ...

Energy Citations Database

91
Three-Dimensional Photonic Crystal-Laser-Driven Accelerator Structures.
2006-01-01

We discuss simulated photonic crystal structure designs for laser-driven particle acceleration, focusing on three-dimensional planar structures based on the so-called ''woodpile'' lattice. We describe guiding of a speed-of-light accelerating mode by a def...

National Technical Information Service (NTIS)

92
The Subcritical Assembly in Dubna (SAD)�Part I: Coupling all major components of an Accelerator Driven System (ADS)
2006-06-01

A demonstration facility for Accelerator Driven Systems has been proposed to be constructed at the Joint Institute of Nuclear Research in Dubna. The Subcritical Assembly in Dubna project proposes to couple an existing proton accelerator of 660 MeV and 1 ?A current with a specially designed U-Pu MOX subcritical core. Project objectives, ...

NASA Astrophysics Data System (ADS)

93
Preliminary Report on the Promise of Accelerator-Driven Natural-Uranium-Fueled Light-Water-Moderated Breeding Power Reactors.
1977-01-01

A new concept for a power breeder reactor that consists of an accelerator-driven subcritical thermal fission system is proposed. In this system an accelerator provides a high-energy proton beam which interacts with a heavy-element target to produce, via s...

National Technical Information Service (NTIS)

94
New options for developing of nuclear energy using an accelerator-driven reactor.
1997-01-01

Fissile fuel can be produced at a high rate using an accelerator-driven Pu-fueled subcritical fast reactor. Thus, the necessity of early introduction of the fast reactor can be moderated. High reliability of the proton accelerator, which is essential to i...

National Technical Information Service (NTIS)

95
MATHEMATICAL, PHYSICAL AND NUMERICAL PRINCIPLES ESSENTIAL FOR MODELS OF TURBULENT MIXING

and well studied Rayleigh-Taylor and Richtmyer-Meshkov instabilities which involve acceleration driven acceleration driven instabilities (Rayleigh-Taylor for continuous acceleration and Richtmyer) to obtain these results. Commonly, Rayleigh-Taylor mixing simulations show a factor of two or more

E-print Network

96
Longitudinal instabilities of pulseline driven neutralized linear ion accelerators
1980-05-01

Linear accelerators driven by pulse forming networks and utilizing beam neutralization may be useful for obtaining high-current ion beams for inertial fusion applications. Such accelerators may be subject to longitudinal velocity bunching instabilities. These instabilities are studied with a computer simulation of longitudinal ion ...

Energy Citations Database

97
Progress towards laser-driven Particle Therapy accelerators
2010-11-01

Recent successes in laser-ion acceleration have motivated research towards laser-driven compact accelerators for medical therapy. Realizing laser-ion acceleration for medical therapy will require adapting both the laser-ion acceleration to the medical requirements, as well as the treatment ...

NASA Astrophysics Data System (ADS)

98
Laser-driven acceleration with Bessel and Gaussian beams
1997-03-01

The possibility of enhancing the energy gain in laser-driven accelerators by using Bessel laser beams is examined. Scaling laws are derived for the propagation length, acceleration gradient, and energy gain in various accelerators for both Gaussian and Bessel beam drivers. For equal beam powers, the energy gain can ...

Energy Citations Database

99
The hardware accelerator array for logic simulation
1991-05-01

Hardware acceleration exploits the parallelism inherent in large circuit simulations to achieve significant increases in performance. Simulation accelerators have been developed based on the compiled code algorithm or the event-driven algorithm. The greater flexibility of the event-driven algorithm has resulted in ...

Energy Citations Database

100
New options for developing of nuclear energy using an accelerator-driven reactor
1997-09-01

Fissile fuel can be produced at a high rate using an accelerator-driven Pu-fueled subcritical fast reactor. Thus, the necessity of early introduction of the fast reactor can be moderated. High reliability of the proton accelerator, which is essential to implementing an accelerator-driven reactor in the nuclear energy field can be ...

DOE Information Bridge

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101
Transverse beam dynamics in plasma-based linacs.
1998-01-01

The transverse beam dynamics in plasma channels of possible future plasma-based linacs is discussed. The authors represent the transverse focusing of both a beam-driven and a laser-driven plasma wakefield accelerator by a uniform focusing channel. The tra...

National Technical Information Service (NTIS)

102
Rayleigh-Taylor Instability in a Layered Laser-Driven Target.
1977-01-01

Growth rates of Rayleigh-Taylor modes, particularly those of long wavelength, are reduced at fluid interfaces in inhomogeneous laser-driven targets by the density gradients occurring naturally as a result of the acceleration. Growth rates can be reduced f...

National Technical Information Service (NTIS)

103
Preliminary Experimental Design and Theoretical Investigation of a Plasma Implosion Driven Mass Accelerator.
1981-01-01

The basic idea that motivated this research effort is the prospect that a series of time z-pinch plasma implosions could be used to sequentially propel a projectile to high velocities. Such a process would provide a new type of electrically driven gun wit...

National Technical Information Service (NTIS)

104
Mesoscopic linear accelerator driven by superintense subpicosecond laser pulses.
1991-01-01

We reconsider the idea of a solid-state laser-driven linac in view of the latest development in the creation of super-intense subpicosecond laser pulses and studying their interaction with surfaces. We suggest that by guiding such pulses in a disposable m...

National Technical Information Service (NTIS)

105
Hypervelocity Impact Facility for Simulating Materials Exposure to Impact by Space Debris.
1992-01-01

The Space Power Institute at Auburn University has constructed an electromagnetically driven particle accelerator for simulating the effects of space debris on the materials for use in advanced spacecraft. The facility consists of a capacitively driven ac...

National Technical Information Service (NTIS)

106
High-Power Free-Electron Lasers Driven by RF Linear ...
1989-05-16

... Accession Number : ADA209740. Title : High-Power Free-Electron Lasers Driven by RF Linear Accelerators. Descriptive Note : Memorandum rept. ...

DTIC Science & Technology

107
Application of Energy Techniques to Propeller-Driven Airplanes.
1985-01-01

This thesis examines the validity of using the energy technique on propeller-driven aircraft during a climb analysis. It compares an accepted subsonic aircraft climb analysis method (pure potential energy increase) with an acceleration analysis procedure ...

National Technical Information Service (NTIS)

108
Radiation damage issues in accelerator-driven spallation neutron systems
1997-01-01

The development of accelerator-driven systems involving the production of spallation neutrons will require extensive materials data on the response of structural components to the effects of the mixed charged particle and neutron fluxes. Failure to anticipate the potentially strong influence of radiation on material`s performance will most certainly lead to difficulty in ...

DOE Information Bridge

109
Toward laser driven proton medical accelerator
2010-08-01

Towards our final goal, such as to establish the laser-driven proton accelerator for the medical application, one of the most important things to establish is to develop the proton transport system. In this continuous work, we demonstrate the focusing system of the laser-driven proton beam with permanent magnet qadrupoles (PMQs), with ...

NASA Astrophysics Data System (ADS)

110
Blast Wave Formation by Laser-Sustained Nonequilibrium Plasma in the Laser-Driven In-Tube Accelerator Operation
2006-05-02

Understanding the dynamics of laser-produced plasma is essentially important for increasing available thrust force in a gas-driven laser propulsion system such as laser-driven in-tube accelerator. A computer code is developed to explore the formation of expanding nonequilibrium plasma produced by laser irradiation. Various properties ...

Energy Citations Database

111
Transmutation Mission
2010-06-01

This paper presents a brief summary of the objectives of transmutation mission and relevant fuel cycle strategies and transmutation systems, including a short comparison of the main characteristics of fast reactor and accelerator-driven systems for actinide transmutation.

NASA Astrophysics Data System (ADS)

112
The 1-MW Radiatively Driven Hypersonic Wind Tunnel ...
2005-01-01

... modifications to the HAWK accelerator, data acquisition ... The addition of nine pulsed magnets and ... of a differential pumping system, fast valve, and ...

DTIC Science & Technology

113
Particle Acceleration, X-Rays, and Gamma-Rays From Winds
1994-01-01

The instability of the line-driven winds of hot stars leads to the formation of strong shocks. These

NASA Technical Reports Server (NTRS)

114
POLAR OBSERVATIONS OF SOLITARY WAVES AT HIGH ... - NASA

Marchenko, V. and M. K. Hudson, Beam-driven ion acoustic solitary waves in the auroral acceleration region, J. Geophys. Res., 100, 19791, 1995. Matsumoto ...

NASA Website

115
PARA: A Computer Simulation Code for Plasma Driven ...
1983-03-01

... and analyse experiments on small calibre rail-gun launchers. (Author). Descriptors : *Plasma accelerators, *Electric guns, Computerized simulation ...

DTIC Science & Technology

116
Observation of Dust Stream Formation Produced by Low Current, High Voltage Cathode Spots
2004-01-01

Macro-particle acceleration driven by low current, high voltage cathode spots has been investigated.

NASA Technical Reports Server (NTRS)

117
Global warming in the twenty-first century - GISS Publications - NASA

A common view is that the current global warming rate will continue or accelerate . But we argue that rapid warming in recent decades has been driven mainly by ...

NASA Website

118
ECN contributions to ADTT '96.
1996-01-01

An outline is presented of the status of nuclear data evaluation for accelerator-driven systems. The international effort consists mainly of measuring, compiling and calculating nuclear data for elements and isotopes relevant for transmutation of radioact...

National Technical Information Service (NTIS)

119
Development of an All Solid State 6 kHz Pulse Generator for ...
1990-07-16

... twice as fast as could be accomplished by coupling to either end. ... identical accelerator cells are driven in parallel by a pulsed power drive ...

DTIC Science & Technology

120
Cryogenic liquid helium sloshing dynamics driven by spacecraft orbital accelerations associated with spinning and/or slew motions
1994-01-01

The formulation of sloshing dynamics for partially filled liquid of cryogenic superfluid helium 2 in

NASA Technical Reports Server (NTRS)

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121
Constellation Acceleration Study Report - NASA Headquarters

reserves in 2009 and 2010, in conjunction with the effect of two ... reserves has driven numerous items in the current technical baseline to not be fully ...

NASA Website

122
Conceptual Design of Multicell Nuclear Power Installation Driven by Accelerators
1997-05-01

The problem of nuclear safety and reliability of power installation based on accelerator-driver. The maximum reliability of electronuclear power installation may be reached by designing it as sum of several subcritical multiplying assemblies each driven by individual accelerator. Every cell is insulated from neutron fluxes of other ...

NASA Astrophysics Data System (ADS)

123
Computer Simulation of Rocket/Missile Safing and Arming ...
1986-03-01

... The simulation can l- used to determine the effect of design changes made to the escapemeit , trali, and acceleration driven rotor. ...

DTIC Science & Technology

124
Comparison of solitary wave packets observed at high and low ...

Marchenko, V. and M. K. Hudson, Beam-driven ion acoustic solitary waves in the auroral acceleration region, J. Geophys. Res., 100, 19791, 1995. ...

NASA Website

125
Alpha diversity of Phanerozoic marine communities positively correlates with longevity of genera

... much more rapid than expected if driven by random chance alone (Markov 2000). Notably, the growth of L is accelerated ... ...

NBII National Biological Information Infrastructure

126
Acceleration and heating of two-fluid solar wind by Alfven waves
1994-01-01

Earlier model studies of solar wind driven by thermal pressure and Alfven waves have shown that wave

NASA Technical Reports Server (NTRS)

127
A Compact Laser Photocathode Driven Accelerator for the ...
1991-05-31

... of the solenoid the laser ports were placed at 60 degrees from the beam axis in order to clear the edge of the solenoid. Page 64. -,..- ...

DTIC Science & Technology

128
--No Title--
2011-07-11

which requires intense, short pulse electron beams. Examples include wakefield acceleration, generation of high power cm wavelength rf, and beam-driven plasma-based...

Science.gov Websites

129
Selection of flowing liquid lead target structural materials for accelerator driven transmutation applications.
1994-01-01

The beam entry window and container for a liquid lead spallation target will be exposed to high fluxes of protons and neutrons that are both higher in magnitude and energy than have been experienced in proton accelerators and fission reactors, as well as ...

National Technical Information Service (NTIS)

130
Mixing, Staging, and Phasing for a Proton-Driven Wake Field Accelerator.
1987-01-01

This paper expands on a few important details of the Wakeatron concept. This is a device where electrons can be accelerated by the wake field of short intense proton bunches travelling along the axis of an rf structure. Specifically, we have examined the ...

National Technical Information Service (NTIS)

131
Mechanical Impedance of Supine Humans under Sustained Acceleration.
1973-01-01

Measurements of the mechanical impedance of the supine human body were conducted to investigate the nonlinearities of the body system. A hydraulically driven shake table was installed on a centrifuge. Transmitted force and the acceleration of the platform...

National Technical Information Service (NTIS)

132
LAL contributions to the 1st EPAC conference.
1988-01-01

The Linear Accelerator Laboratory contributions to the first European Particle Accelerator Conference, are presented. A new method on the field of high brightness laser driven electron sources, is described. The experimental results, involving high emissi...

National Technical Information Service (NTIS)

133
Accelerator Breeding of Fissile Materials.
1978-01-01

The accelerator-driven breeder can extend an essential energy resource, fissile fuel for nuclear reactors, by a very large factor. Symbiotic breeders could be brought on line in a shorter period of time with favorable performance predictability. The econo...

National Technical Information Service (NTIS)

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