... Descriptors : *ION ACCELERATORS, *LINEAR ACCELERATORS, SYMPOSIA, SEMICONDUCTOR DEVICES, PULSE GENERATORS, SOLID ...
DTIC Science & Technology
... Descriptors : *Patents, *Linear accelerators, *Pneumatic devices, Control systems. Subject Categories : PARTICLE ACCELERATORS. ...
... ACCELERATORS, *ION ACCELERATORS, RINGS, VACUUM APPARATUS, ELECTRONS, MAGNETIC FIELDS, CROSSED FIELD DEVICES ...
A rail accelerator was chosen for study as an electromagnetic space propulsion device because of its
NASA Technical Reports Server (NTRS)
... to efforts to reduce loss of life, injury and ... the design of the peak acceleration device (PAD ... rugged aluminum casing that provides high resistance to ...
... Semiconductor devices, *Radiation effects, Electron irradiation, Ionization, Electron accelerators, Linear accelerators, Translations, USSR. ...
... Accelerator Technology II, RF, Power Supplies, Operations; Linear Accelerators and Pulsed Power Devices; Linear Colliders; and CERN plans for ...
... Title : MOTION DEVICES FOR LINEAR AND ANGULAR OSCILLATION AND FOR ABRUPT ACCELERATION STUDIES ON HUMAN SUBJECTS ...
... The report presents a brief description of the Coriolis Acceleration Platform ... research device developed to study the biological effects of aerospace ...
... Descriptors : *AGING(MATERIALS), *SEMICONDUCTOR DEVICES, *ACCELERATED TESTING, LIFE EXPECTANCY(SERVICE LIFE), COST ...
reasonable amount of time, an accelerated life test at high temperatures is used . This type of accelerated test is based on the observation that ...
NASA Website
... Flight simulation, *Man machine systems, *Cueing, Acceleration, Pilots, Trainees, Flight maneuvers, Proprioception, Electric coils, Magnet coils ...
... and accelerators, such as MD-GRAPE for molecular dynamics or Clearspeed [148] devices for accelerating floating point computations also show ...
A device for accelerating a projectile to extremely high velocities, composed of a light gas accelerator to impart an initial high velocity to the projectile and a plasma accelerator and compressor receiving the moving projectile and accelerating it to hi...
National Technical Information Service (NTIS)
Mar 4, 2011 ... The acceleration used in calculating the mass is actually a calculated average acceleration with regression analysis. ...
Jul 16, 1999 ... Space Acceleration Measurement System (SAMS) Operations ... Space Acceleration Measurement System (SAMS) sensor device. The SAMS ...
Jun 10, 2011 ... The Space Linear Acceleration Mass Measurement Device (SLAMMD) follows Newton's Second Law of Motion by having two springs generate ...
A simple device is described which allows measurement of the length, amplitude, and intensity of the radiation pulse in each operating cycle of an accelerator.
Energy Citations Database
PROPOSAL TITLE: Accelerated Wound Healing Device Using Light Emitting Diodes ( LEDs) Biostimulation to Support Long Term Human Exploration of Space ...
... 3) climatized [ventilated] suits; J4) antigravity devices; ... Anti- gravity (acceleration] devices reduce the harmful effect of prolonged ...
An accelerated particle generator adjustable over a wide energy range was developed. It consists of a first particle accelerator providing a high- energy accelerated particle beam, a device for deviating this beam positioned after this first accelerator and capable of effecting a 360 deg ...
... 3. The Evaluation of a Solar Radiation Concentration Device (EMMA) as a Means of Accelerating the Weathering of Plastics. ...
... It has been emphasized that it is not electromechanical device sensitive to acceleration acceptable to perform extreme marathon training ...
... of improving the resolving capacity in its basic, or supplementary receiving devices, there are used videofrequency linear accelerators with the ...
... Descriptors : (*PARTICLE ACCELERATORS, INJECTION), BETATRONS, CHARGED PARTICLES, CONTROL SYSTEMS, ANALOG COMPUTERS ...
The report presents a brief description of the Coriolis Acceleration Platform, a new combined linear and angular motion-producing vestibular research device developed to study the biological effects of aerospace acceleration environments. The primary elem...
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...
A review is presented on the operating parameters of traveling wave plasma accelerators as thrust engines and on the current status of experimental programs on these accelerators. A qualitative comparison between the properties of traveling wave plasma accelerators and those of other electric thrust devices ...
Electromagnetic pulsed accelerators with dielectric erosion operating at powers of approximately 10 to the 8th power W are used for plasma acceleration. Such accelerators have proven to be effective devices in which a considerable portion of the energy or...
A high-intensity cyclic induction electron accelerator at (40 - 200) MeV is described. A magnetic system of the accelerator is similar to that of a weakly focusing synchrotron. The accelerating ferromagnetic cores and input and output devices are placed i...
The patent application describes a device for use in measuring peak acceleration (g) levels experienced by munitions during rough handling, ballistic launching or at terminal impact. The device is a self-contained mechanical concept based on the predictab...
"The major accelerator facilities make use of several types of devices to build up the energy of the particles. The Cockroft-Walton accelerator is used as the first stage of acceleration at Fermilab. "Inside this device, hydrogen gas is ionized to create negative ions, each consisting of two ...
NSDL National Science Digital Library
An acceleration-sensing apparatus is disclosed which includes a moveable shuttle (i.e. a suspended mass) and a latch for capturing and holding the shuttle when an acceleration event is sensed above a predetermined threshold level. The acceleration-sensing apparatus provides a switch closure upon sensing the ...
DOE Information Bridge
High electric fields are obviously advantageous in powerful electron accelerators: for a given energy gain per particle, the device length is inversely proportional to the maximum field; and the maximum current is roughly proportional to the field. The tr...
An investigation was made of the effects of acceleration of the approximate center of mass of the head with respect to the body eliminating the effects of deformations of the head as produced by a direct blow. The development of a mechanical device with w...
Jul 16, 1999 ... Space Acceleration Measurement System (SAMS) sensor device. The SAMS sensor consisted of three sensor heads positioned orthogonally ...
A final report on work covering four years of investigation is presented. Included in this report are the following: (a) An experimental investigation of the acceleration of plasma toroids in a pulsed traveling wave device. (b) A theoretical investigation...
The report describes a general-purpose instrumentation system developed for use in conjunction with the Coriolis Acceleration Platform, a combined linear and angular motion device recently installed at the vestibular research facilities of this activity. ...
message here Instrumentation and Controls AOT's Instrumentation and Controls (AOT-IC) Group provides automated control and monitoring support for accelerator devices at the Los...
Science.gov Websites
The two-fold objective of this study was to determine the effect of accelerations on material properties and to develop procedures for measuring these properties. A special centrifuge testing device was designed, constructed and calibrated for this study....
The principles of operation of diffusion type electrochemical sensors of linear and angular accelerations are examined. Relations for designing such accelerometers are proposed, and the principal technical parameters of several accelerometers are examined...
Dec 12, 2004 ... Coronal Mass Ejections ... Physicists on Earth use electromagnetic devices--high -energy accelerators--to accelerate electrons, protons and ...
The purpose of this study was to develop a microcomputer-based acceleration logger device for the swimming stroke monitoring. The authors measured the swimmer's tri-axial wrist acceleration and applied this device for the fatigue evaluation of the swimmers. The experimental protocol led the swimmers exhausted after ...
NASA Astrophysics Data System (ADS)
An application accelerator system for monitoring the gain of a free electron laser is disclosed. Coherent Synchrotron Radiation (CSR) detection techniques are used with a bunch length monitor for ultra short, picosec to several tens of femtosec, electron bunches. The monitor employs an application accelerator, a coherent radiation production ...
DOEpatents
An application accelerator system for monitoring the gain of a free electron laser. Coherent Synchrotron Radiation (CSR) detection techniques are used with a bunch length monitor for ultra short, picosec to several tens of femtosec, electron bunches. The monitor employs an application accelerator, a coherent radiation production ...
Where and how will wake field acceleration devices find use for other than, possibly, accelerators for high energy physics. I don't know that this can be responsibly answered at this time. What I can do is describe some recent results from an ongoing expe...
A detailed numerical and analytical study of the beam dynamics in a rebatron acceleration has shown that energies approaching 1 GeV can be achieved within 5-10 microseconds. Since the acceleration in the rebatron occurs within a short time, the device man...
A device and method are described for pumping gaseous lasers by means of a microwave accelerator. The microwave accelerator produces a relativistic electron beam which is applied along the longitudinal axis of the laser through an electron beam window. Th...
This report describes the calibration of a six-degree-of-freedom acceleration measurement system designed for use in the measurement of linear and angular head accelerations of anthropomorphic dummies during crash tests. The calibration methodology, devel...
The use of a lead sulfide detector in a device for monitoring the intensity distribution of high energy electron beams from a linear accelerator is described. Experimental measurements of the beam profile for a 6-Mev linear accelerator are presented. (auth)
Several applications of mass-accelerators are discussed with emphasis on impact fusion as one of the most ambitious goals for such devices. Many applications require that the accelerator be capable of being repetitively fired. 20 refs.
In the current ``standard model'' of accelerator control systems, the interface to accelerator equipment is implemented in a network component termed a front end computer. A front end computer system is being developed which provides access to underlying accelerator equipment via an abstraction termed an ...
The shut-off mechanism described is provided with an accelerating device to speed up the drop of safety rods which are located above the core. The accelerating device imparts a collision momentum to the rods, the collision energy being released in fractions of milliseconds. (NPO)
Instead of using linear accelerators, it is possible to breed fissile fuels with the help of high current plasma focus device. A mechanism of accelerating proton beam in plasma focus device to high energy would be a change of inductance in plasma column b...
New technologies of pellet production and acceleration for fueling and diagnostics purposes in large thermonuclear reactors are proposed. The technologies are intended to apply to the multiple-pellet injection system 'HIPEL' for Large Helical Device of NI...
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...
This work is concerning the design of an isotopic separation device on-line with an heavy-ion accelerator. The type of the separator and the Bernas-Nier type source are first described. The application of this technique to the off-line and on-line separat...
Sandia National Laboratories is developing a MEMS-based trajectory safety subsystem, which allows enablement of critical functions only after a particular acceleration environment has been achieved. The device, known as an Environmental Sensing Device (ES...
Laser accelerators may be conveniently characterized, by their mode of operation, into media, far-field, and near-field accelerators. The first category--media accelerators--include the Inverse Cherenkov Effect Accelerator, the Plasma Focus Accelerator, and the Beat Wave ...
. Recognition is also extended to Bruce Ashley of the Logistics Management Office for reproduction services ............................................................................................ 13 Polish�wear testing devices ................................................................................................ 15 British Accelerated Wear ...
E-print Network
Quantum Devices, Inc. Barneveld, WI. INNOVATION. The WARP [Warfighter Accelerated Recovery by Photobiomodulation] 10 is a high-intensity, portable LED ...
Although RF accelerated life testing of the RF devices would be optimal, it is quite ..... and compound semiconductor devices such as Gallium Nitride (GaN) FETs ...
... Inherent device failure mechanisms, such as electromigration, hot carrier effects and time dependent dielectric (oxide) breakdown, may lead to ...
The gravity device is carried in a space vehicle for the study of instrumentation. It is constructed having an elongated passageway and a ball therein which is adapted to accelerate undisturbed within the passageway in response to gravitational force. The...
1) devices in can packages exhibit low amounts of hydrogen; 2) ceramic frit glass devices show negligible amounts of hydrogen; 3) parts that also have a ...
motion base hardware safety devices. These safety systems are required to ... The accelerations induced by the safety devices during normal operations and ...
Two rf coaxial couplers that are particularly suitable for intertank connection of the disk-and-washer accelerating structure for use in high-intensity linear accelerators have been developed. These devices have very high coupling to the accelerating structure and very low rf power loss at the operating frequency, ...
The current status of pulsed plasma accelerators and steady-state j x B accelerators is summarized. Emphasis is placed upon three areas of the current state of knowledge: the basic interaction by which acceleration is accomplished; the loss mechanisms which exist in a given type device; and experimental ...
... 6. The Further Evaluation of a Solar Radiation Concentrating Device (EMMA) as a Means of Accelerating the Weathering of Plastics. ...
Twelve pilots were tested in a rotation device with visual simulation, alone and in combination with
... strength Stress analysis Accelerated durability testing Radiopacity Deliverability Bond strength / joint integrity Coating integrity Corrosion resistance ...
Center for Biologics Evaluation and Research (CBER)
... traditionally happens in a discreet fashion as manufactures ... aerospace industry. ... If the aerospace industries concerns are confirmed, decreased IC ...
A multielectrode device housed in an insulator vacuum vessel, the metal vapor vacuum switch has high
The measurement of acceleration has been accomplished using several technologies in high-reliability
... ASSURANCE, *WAFERS, *ACCELERATED TESTING, TEST AND ... SEMICONDUCTORS, HIGH ENERGY ... OXIDES, VENDORS, LIFE TESTS, IONIC ...
... Abstract : A pulsed Nd: Glass laser facility that ... Laser simulation of SEUs is demonstrated to ... DEVICES, *PULSED LASERS, *ION ACCELERATORS ...
... Subject Categories : LINE, SURFACE AND BULK ACOUSTIC WAVE DEVICES. Distribution Statement : APPROVED FOR PUBLIC RELEASE. ...
The concept of a synchrotron employing induction acceleration devices is described [1]. The concept becomes more clear when one contrasts the Induction Synchrotron with an RF synchrotron , which has been employed in all high-energy circular accelerators since being independently invented by McMillan [2] and Veksler [3] . In the ...
A general purpose accelerator board and acceleration method comprising use of: one or more programmable logic devices; a plurality of memory blocks; bus interface for communicating data between the memory blocks and devices external to the board; and dynamic programming capabilities for providing logic to the ...
A high-current, cyclic electron accelerator, capable of accelerating several kiloamperes of electron current is described. The accelerating elements of the device are linear induction modules which match well to high-current operation. A racetrack configuration is utilized to return the electrons to the induction ...
The type of radiofrequency plant typical of orbital accelerating machines is demonstrated, and formulas are given that show that the accelerating device (resonant cavity) is loaded by the beam and that the loading depends only on the characteristics of the beam and the accelerating voltage, Design criteria ...
A piezoelectric accelerometer is described which simultaneously measures acceleration and velocity for materials subjected to very rapid impulsive loading. The acceleration signal is derived from a measure of the rate of change of the short-circuited current of a piezoelectric disk in contact with the accelerated surface. The maximum ...
A new distributed intelligence control system has become operational at the AGS for transport, injection, and acceleration of heavy ions. A brief description of the functionality of the physical devices making up the system is given. An attempt has been made to integrate the devices for accelerator specific ...
High voltage generation on pinched plasma by a plasma focus device was investigated. Fissile fuels are bred with the help of high current plasma focus device. A mechanism of accelerating proton beam in plasma focus device to high energy changes the induct...
The aerospace industry is concerned that as semiconductor feature sizes are reduced future technology generations, device lifetime will decrease as well. Inherent device failure mechanisms, such as electromigration, hot carrier effects and time dependent ...
Each accelerator control system has a variety of measurement devices. One of the most common types of instrument interfaces used for their control is a serial (RS-232) bus. It is inexpensive and adequate for relatively simple measurement and control devic...
A description of an experimental device intended for studying fragmentation of target nUclei in proton-nucleus and nucleus-nucleus interactions is given. The device employs vacuum and target assemblies installed in the vacuum chamber of one of the JINR sy...
A large proportion of devices used to interact with charged-particle beams in accelerator or storage rings can be classified as pick-ups or kickers. These devices extract information about the particle motion or affect a change in the motion. One device u...
...Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES CARDIOVASCULAR DEVICES...cardiographic transducer is a device used to detect motion of the heart (acceleration, velocity, or displacement) by changes...
Code of Federal Regulations, 2011
The coaxial plasma accelerator is a simple, compact, and mechanically robust device that utilizes the Lorentz J�B force to accelerate plasma to high velocity. Originally developed in the 1950s for the purpose of providing energetic plasmas for fusion energy experiments, coaxial plasma accelerators are presently ...
A method is described of controlling an electronically controlled transmission of a vehicle during an abrupt depression of an accelerator pedal to accelerate the vehicle. The transmission has an actuator for a gear changing operation controlled by an electronic control device for changing gear ratios. The method comprises: (a) ...
Commodity accelerator technologies including reconfigurable devices and graphical processing units (GPUs) provide an order of magnitude performance improvement compared to mainstream microprocessor systems. A number of compute-intensive, scientific applications, therefore, can potentially benefit from commodity computing devices ...
A device is described for correcting the exit trajectory of a beam of particles accelerated by an isochronous cyclotron or a synchrocyclotron. It is provided with two conjugated electromagnets having pole pieces in the form of rounded sectors at their ends. These electromagnets are both excited with coils, and the currents traversing these coils ...
We analyze operation of a cold-atom accelerometer, an interferometric device which measures linear accelerations. We develop an analytic model that predicts a decrease in the visibility of the interference fringes and also their shift caused by the acceleration of the device. This effect places an upper limit on ...
The rebatron is a high-current compact accelerator concept which differs from the modified betatron and the stellatron. In the latter devices, the acceleration mechanism is the relatively slow betatron mechanism. In the rebatron, there is rapid acceleration of the electrons as the beam repeatedly passes through a ...
This report describes the work of the Group on Far Field Accelerators. The work was focused on two accelerator schemes, the Inverse Free Electron Laser and the Two Wave Device. The possibilities and limitations of these two accelerators are discussed, as well as some of the requiremenets on the laser necessary to ...
This report contains papers on the following topics: low- and medium-energy accelerators and rings; accelerator-instrumentation, controls, and feedback; injectors and ion sources; high-energy accelerators and colliders; synchrotron radiation sources; beam dynamics; free-electron lasers; pulsed power devices; rf, ...
The LUEhR-20M linear resonance electron accelerator designed for therapy is described briefly. Experimental investigations into characteristics of accelerated electron beam are conducted. Efficiency of energy control device is tested. The possibility of b...
There has recently been a study of the potential uses of multimode dielectric structures for wakefield acceleration [1]. This technique is based on adjusting the wakefield modes of the structure to constructively interfere at certain delays with respect to the drive bunch, thus providing an accelerating gradient enhancement over single mode ...
Conflicts over control of shared devices or resources in an accelerator control system, and problems that can occur due to applications performing conflicting operations, are usually resolved by accelerator operators. For these conflicts to be detected by the control system, a model of accelerator operation must be ...
An acceleration-responsive device with dual channel capabilities whereby a first circuit is actuated upon attainment of a predetermined maximum acceleration level and when the acceleration drops to a predetermined minimum acceleriltion level another circuit is actuated is described. A fluid-damped sensing ...
Presentation on step-stress accelerated degradation testing (SSADT) for photovoltaics (PV). Developed are a step-stress degradation test (SSADT) for PV reliability tests and a lifetime prediction model for PV products.
Particle accelerators have evolved over the last 50 years from simple devices to powerful machines, and will continue to have an important impact on research, technology and lifestyle. Today they cover a wide range of applications, from television and com...
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 ...
Which current pulsed accelerator technology was developed during the late 60's through the late 80's to satisfy the needs of various military related applications such as effects simulators, particle beam devices, free electron lasers, and as drivers for ...
We have successfully demonstrated the principles of wake-field acceleration using structures (cavity, dielectric) and plasmas as wake-field devices using the AATF at Argonne National Laboratory. Due to the limited driver electron pulse intensity and relat...
Metal foils, exploded by a pulse of high density electric current, can be used to accelerate thin plastic flyers to velocities of 8 km/s or greater. The behavior of these devices has been investigated analytically and experimentally. The results of hydrod...
The construction of an ion source testing device is described which can be used as injector for the Munich MP-tandem accelerators. Studies of the existence of double negative charged ions are described. Uranium ion beams were produced in a sputtering sour...