Progress is reported on the Staged Electron Laser Acceleration (STELLA) experiment, which has been assembled on the BNL Accelerator Test Facility (ATF). The primary goal of STELLA is to demonstrate staging of the laser acceleration process by using the BN...

The Staged Electron Laser Acceleration (STELLA) experiment is currently being assembled and tested at the BNL Accelerator Test Facility (ATF). The existing BNL inverse free electron laser (IFEL) has been positioned upstream of the inverse Cerenkov acceler...

The STaged ELectron Laser Acceleration (STELLA) experiment will be one of the first to examine the critical issue of staging the laser acceleration process. The BNL inverse free electron laser (IFEL) will serve as a prebuncher to generate {approx}1-{mu}m long microbunches. These microbunches will be ...

The STaged ELectron Laser Acceleration (STELLA) experiment will be one of the first to examine the critical issue of staging the laser acceleration process. The BNL inverse free electron laser (EEL) will serve as a prebuncher to generate {approx} 1 {micro}m long microbunches. These microbunches will be ...

Progress is reported on the Staged Electron Laser Acceleration (STELLA) experiment, which has been assembled on the BNL Accelerator Test Facility (ATF). The primary goal of STELLA is to demonstrate staging of the laser acceleration process by using the BNL inverse free ...

, located at the BNL Accelerator Test Facility (ATF), is to demonstrate laser acceleration of optically. The basic layout for the experiment is depicted in Fig. 1. IFEL PREBUNCHER DRIFT & e-BEAM FOCUSING OPTICS/lens system.) A Nichrome wire in the shape of a single loop is pressed against the outer edge of the wafer

A new experiment has begun that builds upon the successful Staged Electron Laser Acceleration (STELLA) experiment, which demonstrated high-trapping efficiency and narrow energy spread in a staged laser-driven accelerator. STELLA was based upon inverse free electron lasers ...

A new experiment has begun that builds upon the successful Staged Electron Laser Acceleration (STELLA) experiment, which demonstrated high-trapping efficiency and narrow energy spread in a staged laser-driven accelerator. STELLA was based upon inverse free electron lasers ...

The STaged ELectron Laser Acceleration (STELLA) experiment is currently being assembled and tested at the BNL Accelerator Test Facility (ATF). The existing BNL inverse free electron laser (IFEL) has been positioned upstream of the inverse Cerenkov acceleration (ICA) ...

After constructing a Stella model of Daisyworld students perform guided experiments to explore the behavior of Daisyworld to changes in model parameters and assumptions.

A microbunch diagnostic system is built at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory for monitoring microbunches (10-fs bunch length) produced by the Inverse Free Electron Laser accelerator in Staged Electron Laser Acceleration experiment. It is similar to one already demonstrated at the ...

A microbunch diagnostic system is built at the Accelerator Test Facility (ATF) of Brookhaven National Laboratory for monitoring microbunches (10-fs bunch length) produced by the Inverse Free Electron Laser accelerator in Staged Electron Laser Acceleration experiment. It is similar to one already demonstrated at the ...

High-trapping efficiency and narrow energy spread in a staged laser acceleration system was demonstrated during the Staged Electron Laser Acceleration (STELLA) experiment. The experiment used inverse free electron lasers (IFEL) driven by the Brookhaven National Laboratory ...

High-trapping efficiency and narrow energy spread in a staged laser acceleration system was demonstrated during the Staged Electron Laser Acceleration (STELLA) experiment. The experiment used inverse free electron lasers (IFEL) driven by the Brookhaven National Laboratory ...

The Staged Electron Laser Acceleration -- Laser Wakefield (STELLA-LW) experiment is investigating two new methods for laser wakefield acceleration (LWFA) using the TW CO2 laser available at the Brookhaven National Laboratory Accelerator Test Facility. The first is seeded self-modulated LWFA ...

The Staged Electron Laser Acceleration (STELLA) experiment is currently being assembled and tested at the BNL Accelerator Test Facility (ATF). The existing BNL inverse free electron laser (IFEL) has been positioned upstream of the inverse Cerenkov acceleration (ICA) ...

The staged electron laser acceleration (STELLA) experiment demonstrated staging between two laser-driven devices, high trapping efficiency of microbunches within the accelerating field and narrow energy spread during laser acceleration. These are important for practical laser-driven ...

Preservation of the femtosecond (fs) microbunches, created during laser acceleration, is a crucial step to enable staging of the laser acceleration process. This paper focuses on the optimization of the beam dynamics of fs microbunches transported through the staged electron laser acceleration (STELLA-II) ...

The Staged Electron Laser Acceleration - Laser Wakefield (STELLA-LW) experiment at the Brookhaven National Laboratory (BNL) Accelerator Test Facility (ATF) will explore the generation of large wakefields by an intense, long-wavelength CO2 laser beam in a capillary discharge plasma. A tool is developed for efficient ...

We have developed a 1-D, quasi-steady-state numerical model for a gas-filled capillary discharge that is designed to aid in selecting the optimum capillary radius in order to guide a laser beam with the required intensity through the capillary. The model also includes the option for an external solenoid B-field around the capillary, which increases the depth of the parabolic density channel in the ...

We have developed a 1-D, quasi-steady-state numerical model for a gas-filled capillary discharge that is designed to aid in selecting the optimum capillary radius in order to guide a laser beam with the required intensity through the capillary. The model also includes the option for an external solenoid B-field around the capillary, which increases the depth of the parabolic density channel in the ...

Monoenergetic laser acceleration of trapped microbunches has been demonstrated for the first time. An inverse free electron laser (IFEL) is used to create microbunches, which are then accelerated by a second IFEL using a tapered undulatos. An adjustable magnetic field chicane is located between the two IFELs and is used to control the phase of the ...

We present an analysis on the effect of the finite bandwidth of a detector on the observed intensity of coherent transition radiation (CTR) produced by a long train of microbunches. The parameters of the planned CTR bunch length measurement for the Staged Electron Laser Acceleration (STELLA) experiment on the ATF linac at Brookhaven ...

Demonstration of ultra-high acceleration gradients in the SM LWFA experiments put a next objective for the laser accelerator development to achieve a low-emittance monochromatic acceleration over extended interaction distances. The emerging picosecond terawatt (ps-TW) CO{sub 2} laser technology helps to meet this ...

... Accelerator. A New Experiment in the Physics of Elementary Particles,. Corporate ... Subject Categories : PARTICLE ACCELERATORS. ...

The thermohaline circulation system of the North Atlantic Ocean is critically important to the climate system since it is involved with the transport of significant amount of heat to high latitudes of the northern hemisphere. In this exercise, students build a simple STELLA model of this system, which is surprisingly complex in its behavior. The students carry out a series of ...

This site provides an introduction to modeling chemical kinetics using the STELLA program. The Stella models are in a zip file that can be downloaded.

Sustainability has numerous definitions and is often discussed. However, there are fewer lessons derived from its application. The concept for its application evolved out of a study to determine whether brownfields could be redeveloped to be more environmentally friendly. The ...

Daisyworld is a classic model of complex feedbacks in a simple climate system; this activity guides students through the construction of a STELLA model that can be used to experiment with the system, exploring the somewhat surprising dynamics that arise from the interplay of positive and negative feedbacks between daisies and the temperature of their ...

This site from Carleton College features an introduction to modeling earth�øΩs climate system using STELLA. Topics covered include basic concepts and processes of the earth�øΩs climate system, model construction and five experiments involving changes to basic components of the system.

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.

A plasma wakefield acceleration experiment is conducted at the Stanford Linear Accelerator Center. This experiment addresses the issues relevant to a meter-long plasma accelerator module in the context of a high-energy accelerator.

... experiments through burning and heat release are presented. Descriptors : *ACCELERATION, *PROJECTILES, *SUPERSONIC COMBUSTION, * ...

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...

The POLAR 5 rocket experiment carried an electron accelerator on a 'daughter' payload which injected

The positions and velocities of the four Satellite Laser Ranging (SLR) stations: Yarragadee (7090), Greenbelt (7105), Graz (7839) and Herstmonceux (7840) from 5-year (2001-2005) SLR data of low orbiting satellites (LEO): Ajisai, Starlette and Stella were determined. The orbits of these satellites were computed from the data provided by 20 SLR stations. All orbital computations ...

The objective of the Orbital Acceleration Research Experiment (OARE) is to measure, with high accuracy, the low-frequency, low-magnitude acceleration levels onboard the space shuttle. The shuttle experiences acceleration from atmospheric drag, gravity gra...

Examined here is the sensitivity of a variety of space experiments to residual accelerations. In all

... AD0407339. Title : MAGNETIC INSULATION EXPERIMENTS WITH A TRAVELING MAGNETIC PISTON PLASMA ACCELERATOR. ...

A summary is given of the activities of those in the Media Accelerator Group. Attention was focused on the Inverse Cherenkov Accelerator, the Laser Focus Accelerator, and the Beat Wave Accelerator. For each of these the ultimate capability of the concept was examined as well as the next series of ...

Two accelerometers provided acceleration data during the STS-75 mission in support of the third United States Microgravity Payload (USMP-3) experiments. The Orbital Acceleration Research Experiment (OARE) and the Space Acceleration Measurement System (SAM...

Ion acceleration has now been demonstrated with the IFA-2 collective ion accelerator system. The IFA-2 system is described, photoionization experiments are summarized, and ion results are presented. Using a 1 MeV electron beam and a 30 cm acceleration len...

Experiments on acceleration of nitrogen ions by electron rings in the falling-off magnetic field of a collective accelerator prototype are described. The nitrogen ions accumulated in the ring during the residual gas ionization at a chamber pressure of (2-...

Abstract-- A system level fault injection experiment measuring changes in probability of failure and error propagation as a function of failure acceleration. It demonstrates that: (1) Probability of failure increases with failure acceleration, and (2) Error propagation decreases with failure acceleration. I.

Stella2java models are java applets created from Stella equation files. In this process, initial conditions and converters of your choice can be replaced with slider bars, and your choice of stocks and converters can be shown in a graph, allowing for a more direct visualization of the result of dynamic models. Converters can be set by either a slider bar, ...

The mechanisms which ultimately limit the voltage of large accelerators are discussed in the light of the operating experiences of the NSF tandem. 3 refs.

... The analysis is performed for rail gun accelerators. ... be considered as an Ohmic load for typical circuit parameters employed in many experiments. ...

... study the electrical conductivity of the seeded shock layer ... FEASIBILITY STUDIES, KINETIC ENERGY, BLUNT BODIES, PLASMA ACCELERATORS ...

Some personal recollections are presented that relate to the author's experience developing linear accelerators, particularly for protons. (LEW)

Some personal recollections are presented that relate to the author's experience developing linear accelerators, particularly for protons. (LEW)

Some personal recollections are presented that relate to the author`s experience developing linear accelerators, particularly for protons. (LEW)

... Experience with these accelerator systems has ... be fabricated readily by university shop facilities. ... TERMINAL BALLISTICS, EXPERIMENTAL DATA. ...

Experiments were conducted to study body composition as a function of acceleration (1-4.7 G) in mice

... Accession Number : ADA213336. Title : Acceleration Sets of Planar Manipulators. Part 2. Applications and Experiments. ...

The Corrosion Technology Laboratory at Kennedy Space Center has the facilities, equipment, and experience to conduct indoor accelerated laboratory testing. ...

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 ...

A brief summary of the talks on accelerator physics presented at this conference, Intersections Between Particle and Nuclear Physics , is given. New accelerator facilities and technologies, beam cooling, and the experiments were part of these discussions.

An electron source has been built for the ATOMKI cascade generator to offer possibilities for electron acceleration. A short description of the electron source and that of some experiences connected with the acceleration of electrons is given. (auth)

The article discusses in general terms the state of the art of collective ion accelerator technology and the prospects of further development and applications of ultrahigh energy accelerators. (Author)

Other experiments: Orbital Acceleration Research Experiment (OARE); Shuttle Amateur Radio Experiment (SAREX). Also performed: Pilot Inflight Landing ...

The Space Experiment Module (SEM) Program is an education initiative sponsored ... is sponsoring an active experiment on acceleration measurement and seeds. ...

13 lug 2005 ... Questo disegno illustra il lampo emesso dalla stella di neutroni e dovuto alla materia che viene sottratta alla stella compagna, ...

Topics include: The STELLA learning Machine (N-Ladders, Clumps Predictor, TREEPLE Memory, Monolog STELLA Program, A predictor for STELLA, Predictor Using Slide and Strings -- PUSS); MaxEman.

experience of the accelerator with particular emphasis on the performance of the cryogenic terminal pumping, the titanium electrode spiral inclined field acceleration tubes, and the overall accelerator transmission experience of the accele- rator with particular emphasis of the performance of ...

Operations (Edited by Jeffrey A. Appel) Accelerator/Experiment Operations - FY 2010 (FERMILAB-TM-2477-DI) Accelerator/Experiment Operations - FY 2009 (FERMILAB-TM-2453-DI)...

A brief overview of laser acceleration techniques and a comparative analysis of the picosecond terawatt (ps-TW) CO{sub 2} laser technology versus T{sup 3} solid state lasers for prospective HEP applications. Special attention is given to two laser accelerator schemes. The first one is the far-field staged laser accelerator, ...

This Stella model allows students to learn about chemical mass balance in the atmosphere and apply this to atmospheric chlorofluorocarbon and carbon dioxide concentrations.

... Accession Number : ADA461405. Title : STELLA - A Lisp-Like Language for Symbolic Programming with Delivery in Common Lisp, C++, and Java. ...

Apr 26, 1996 ... The objective of the Orbital Acceleration Research Experiment (OARE) is to measure, with high accuracy, the low-frequency, low-magnitude ...

... Title : HOLD-PERIOD ACCELERATED COOLING EXPERIMENTS ON Nb- AND Ti ... Abstract : HIGH-VOLUME WATER SPRAYS AND AIR-WATER ...

This report discusses the following topic on laser particle accelerators: emittance analysis; modeling of ATF ICA experiment; and conceptual design for ATF ICA experiment. (LSP)

A plasma-based wakefield acceleration (PWFA) experiment is proposed that will accelerate parts of an SLC bunch by up to 1 GeV/m over a length of 1 m. A single SLC bunch is used to both induce wakefields in the one meter long plasma and to witness the resulting beam acceleration. The proposed ...

Investigations on the laser acceleration in vacuum are reviewed including up-date experimental results, projects of new experiments and theoretical prospects of vacuum acceleration schemes for high energies of accelerated particles. Most attention is devoted to analysis of the IFELs with focused laser beam drivers. ...

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 ...

The RADLAC program encompasses high power electron beam propagation experiments and accelerator development, both for advanced propagation experiments and to develop compact accelerator options for future charged particle beam weapons (CPBW). Propagation experiments include conditioning cell ...

A second-generation ionization-front accelerator system (IFA-2) is being brought into operation. Results of IFA-2 IREB optimization experiments, laser-characterization experiments, beam-switch experiments, and laser-deflector experiments are presented. Th...

The Supernova/Acceleration Probe (SNAP) is a proposed space-based experiment designed to study the dark energy and alternative explanations of the acceleration of the Universe's expansion by performing a series of complementary systematics-controlled astr...

An experiment to test the laser plasma beatware accelerator concept is outlined. A heuristic estimate of the relevant experimental parameters is obtained from fluid theory and considerations of wave-particle interactions. Acceleration of 10 MeV electrons ...

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...

The heavy ion beam parameters of the initial part of the heavy ion collective accelerator (KUTI-20) are presented. It is shown that the use of special features of collective accelerator provides the performance of experiments in-not easily attainable earl...

An experiment was conducted at the Advanced Test Accelerator (ATA) in the spring/summer of 1988 to study the transport of the ''laser guided'' electron beam through the accelerator and beyond. The electron beam was guided from the /approximately/3.75 MeV ...

This Technical Memorandum (TM) summarizes the Fermilab accelerator and accelerator experiment operations for FY 2010. It is one of a series of annual publications intended to gather information in one place. In this case, the information concerns the FY 2...

Therefore, the Froude number is generally significant in describing liquid experiments but is unimportant for the gas experiments in the combustor. ...

... Accession Number : AD0849745. Title : A Facility for Transient Radiation Effects Experiments at the NPS Linear Accelerator. ...