A5083470030- Particle accelerators and beam dynamics
- Particle Accelerators and Free-Electron Lasers
- Gyrotron and Vacuum Electronics Research
- Superconducting Materials and Applications
- Library Collection Development and Digital Resources
- Photocathodes and Microchannel Plates
- Plasma Diagnostics and Applications
- Oil and Gas Production Techniques
- Spacecraft and Cryogenic Technologies
- Laser-Plasma Interactions and Diagnostics
- Electronic and Structural Properties of Oxides
- Thermal Radiation and Cooling Technologies
- High-pressure geophysics and materials
- Pulsed Power Technology Applications
- Advanced Surface Polishing Techniques
- Particle Detector Development and Performance
- Reformation and Early Modern Christianity
- Music History and Culture
- Photonic and Optical Devices
- Superconducting and THz Device Technology
- Magnesium Oxide Properties and Applications
- Engineering Applied Research
Advanced Energy Systems (United States)
2002-2018
Michigan State University
2018
Brookhaven National Laboratory
2007-2008
Stony Brook University
2007
Los Alamos National Laboratory
2003
Northrop Grumman (United States)
2003
Thomas College
2003
Wake Forest University
1973
The higher efficiency of superconducting radio-frequency (SRF) cavities compared to normal-conducting ones enables the development high-energy continuous-wave linear accelerators (linacs). Recent progress in high-quality ${\mathrm{Nb}}_{3}\mathrm{Sn}$ film coatings along with availability cryocoolers high cooling capacity at 4 K makes it feasible operate SRF cooled by thermal conduction relevant accelerating gradients for use accelerators. A possible conduction-cooled linacs is environmental...
Abstract The concentration of V centers, produced by a hole trapped at magnesium vacancy, has been found to increase linearly with deformation in single crystals oxide, When one slip system is operative the process an anisotropic defect whose axis 〈100〉 perpendicular both {110} plane and 〈110〉 direction. This produces optical absorption bands 4.07 5.17 eV when deformed crystal X‐irradiated. These are attributed vacancy complexes which have or more electrons. Bleaching experiments reported...
The treatment of flue gases from power plants and municipal or industrial wastewater using electron beam irradiation technology has been successfully demonstrated in small-scale pilot plants. energy requirement is rather modest, on the order a few MeV; however, adoption at an scale requires availability high power, 1 MW, cost effective way. In this article we present design compact superconducting accelerator capable delivering cw with current A MeV. main components are rf-gridded thermionic...
Next generation light-sources, electron coolers, high-power FELs, Compton X-ray sources and many other accelerators were made possible by the emerging technology of high-power, high-brightness beams. In order to get anticipated performance level ampere-class currents, technological barriers are yet be broken. BNL's Collider-Accelerator Department is pursuing some these technologies for its cooling RHIC application, as well a future electron-hadron collider. We will describe work on CW,...
We present the design and parameters of an energy recovery linac (ERL) facility, which is under construction in Collider-Accelerator Department at BNL. This R&D facility has goal demonstrating CW operation ERL with average beam current range 0.1 - 1 ampere very high efficiency recovery. The possibility a future upgrade to two-pass also being considered. heart 5-cell 703.75 MHz super-conducting RF strong Higher Order Mode (HOM) damping. flexible lattice provides test-bed for exploring issues...
The physics interest in a luminosity upgrade of RHIC requires the development cooling-frontier facility. Detailed calculations were made electron cooling stored beams. This has been followed by beam dynamics simulations to establish feasibility creating necessary beam. accelerator will be superconducting Energy Recovery Linac (ERL). An intensive experimental R&D program engages various elements accelerator, as described 24 contributions 2007 PAC.
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation Jőrg Kewisch, Ilan Ben‐Zvi, Triveni Rao, Andrew Burrill, David Pate, Erdong Wang, Rob Todd, Hans Bluem, Doug Holmes, Tom Schultheiss; The Polarized SRF Gun Experiment. AIP Conf. Proc. 4 August 2009; 1149 (1): 1133–1137. https://doi.org/10.1063/1.3215607 Download citation file: Ris (Zotero) Reference Manager...
A key technology issue of energy recovery linac (ERL) devices for high-power free-electron laser (FEL) and fourth generation light sources is the demonstration reliable, high-brightness, injector operation. Three ongoing programs that target up to 0.5 Ampere photocathode performance with required ERL brightness, are described. The first a DC gun superconducting RF (SRF) booster cryomodule. Such 748.5 MHz device being assembled will be tested 100 mA at Thomas Jefferson National Accelerator...
Jefferson Lab is actively exploring the environmental applications of compact irradiation facilities utilizing Superconducting Radio Frequency (SRF) accelerator technology ? a well-established primarily used in large research machines. Recent advancements, such as application thin films superconducting alloys radio frequency (RF) resonators and development high-capacity cryocoolers, have made it feasible to employ this key compact, standalone facilities. The main advantage over conventional...
Jefferson Lab is actively exploring the environmental applications of compact irradiation facilities utilizing Superconducting Radio Frequency (SRF) accelerator technology ? a well-established primarily used in large research machines. Recent advancements, such as application thin films superconducting alloys radio frequency (RF) resonators and development high-capacity cryocoolers, have made it feasible to employ this key compact, standalone facilities. The main advantage over conventional...
Next generation x-ray sources require very high-brightness electron beams that are typically at or beyond the present state-of-the-art, and thus place stringent demanding requirements upon injector parameters. No one source concept is suitable for all diverse applications envisaged, which have operating characteristics ranging from high-average-current, quasi-CW, to high-peak-current, single-pulse beams. Advanced Energy Systems, in collaboration with various partners, developing several...
An RF photoinjector capable of producing high average current with low emittance and energy spread is a key enabling technology for power CW FEL. The design 2.5-cell, -mode, 700-MHz normal-conducting cavity magnetic compensation completed. With gradients 7, 5 MV/m in its three accelerating cells, the will produce 2.5-MeV electron beam 3-nC charge per bunch transverse rms below 7 mm-mrad. Electromagnetic modeling has been used extensively to optimize ridge-loaded tapered waveguides couplers,...
A key technology issue on the path to high-power FEL operation is demonstration of reliable, high-brightness, injector operation. We describe two ongoing programs produce 100 mA injectors as drivers for kW free-electron lasers. In one approach, in collaboration with Thomas Jefferson National Accelerator Facility, we are fabricating a 750 MHz superconducting RF cryomodule that will be integrated room-temperature DC photocathode gun and tested at Laboratory. other Los Alamos Laboratory,...
RF electron guns are capable of producing bunches with high brightness, which outperform DC and may even be able to provide beams for the ILC without need a damping ring. However, all successful existing polarized electrons because environment inside an gun is hostile GaAs cathode material necessary polarization. While typical vacuum pressure in better than 10−11 torr order 10−9 torr. Experiments at BINP Novosibirsk show that this leads strong ion back‐bombardment generation dark currents,...