Download or read book High power Infrared and Ultraviolet Free Electron Lasers at CEBAF written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In response to requirements for national laboratory technology transfer, CEBAF has proposed an industrial R & D initiative: a Free Electron Laser(FEL) User Facility based on an infrared FEL and an ultraviolet FEL, with the injector and the north linac of the CEBAF superconducting, recirculating accelerator serving as drivers. The initiative is a collaborative effort with four U.S. corporate partners and capitalizes on CEBAF'ssuperconducting rf technology. The FELs will provide monochromatic, tunable (3.6 to 1.7 ¿m and 150 to 260 nm), high-average-power ( -kW) lightfor technical applications and basic science studies. FEL capabilities will be competitive with those of similar initiatives worldwide. FEL operation willnot impair beam delivered to CEBAF's nuclear physics experiments. Substational commitments are in hand from the industray partners and theCommonwealth of Virgina for cost-sharing the project with the Federal Government.
Download or read book Use of the CEBAF Accelerator for IR and UV Free Electron Lasers written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The CEBAF superconducting linac is capable of accelerating electron beams suitable for driving high-power free-electron lasers. The 45 MeV injector linac with a 6 cm period wiggler can produce kilowatt output powers of infrared light (3.6-17 micrometer), while the 400 MeV north linac can produce ultraviolet light (~200 nm) at similar powers. The FELs require the addition of a high-peak intensity electron source (~ 60 A peak current) and extraction beam lines to wigglers with appropriate electron and photon optics. FEL operation is compatible with simultaneous baseline CEBAF nuclear physics operation. A design for a CEBAF-based FEL facility has been developed. The current status of the FEL project is reported.
Download or read book Scientific Assessment of High Power Free Electron Laser Technology written by National Research Council and published by National Academies Press. This book was released on 2009-03-06 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a scientific assessment of free-electron-laser technology for naval applications. The charge from the Office of Naval Research was to assess whether the desired performance capabilities are achievable or whether fundamental limitations will prevent them from being realized. The present study identifies the highest-priority scientific and technical issues that must be resolved along the development path to achieve a megawatt-class free-electron laser. In accordance with the charge, the committee considered (and briefly describes) trade-offs between free-electron lasers and other types of lasers and weapon systems to show the advantages free-electron lasers offer over other types of systems for naval applications as well as their drawbacks. The primary advantages of free-electron lasers are associated with their energy delivery at the speed of light, selectable wavelength, and all-electric nature, while the trade-offs for free-electron lasers are their size, complexity, and relative robustness. Also, Despite the significant technical progress made in the development of high-average-power free-electron lasers, difficult technical challenges remain to be addressed in order to advance from present capability to megawatt-class power levels.
Download or read book Use of the CEBAF Accelerator for IR and UV Free Electron Lasers August 1992 written by Joseph Bisognano and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Beam Optics for the CEBAF FEL Proposal written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Beam from the 45 MeV CEBAF injector linac can be used to drive a high-power infrared (IR) free electron laser (FEL), while the 400 MeV north linac beam can drive an ultraviolet (UV) FEL. The FELs require separation of high-intensity FEL driver bunches from the CEBAF nuclear physics beams into transport sections containing wigglers within optical cavities with appropriate matching. The FEL systems must fit within the CEBAF accelerator tunnel. Optical solutions for both the IR and UV FEL beam transports are described and discussed.
Download or read book Department of Energy National Competitiveness Technology Partnership Act of 1993 written by United States. Congress. Senate. Committee on Energy and Natural Resources and published by . This book was released on 1993 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Status Report on Jefferson Lab s High power Infrared Free electron Laser written by Courtlandt Bohn and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Energy Accelerators Heacc 92 Proceedings Of The Xv International Conference In 2 Volumes written by J Rossbach and published by World Scientific. This book was released on 1993-02-10 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt: The High Energy Accelerator Conference has always been the monitor of the state of the art and the new trends in planning, construction and operation of large particle accelerators. It is held every three years. The 1992 conference is devoted to High Energy Hadron Accelerators and Colliders, Linear Colliders, e⁺e⁻ Storage Rings and related Technologies for these machines. In addition to status reports and contributed papers, the program features twelve survey talks which include summaries of individual poster papers.
Download or read book Development and Applications of Free Electron Lasers written by Jia Chen and published by CRC Press. This book was released on 1997-05-22 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a comprehensive overview of the field of free electron lasers. Each chapter is based on a graduate-level lecture given by an internationally-known expert in the field, and is self-contained, beginning with introductory background material and culminating in an in-depth discussion of the author's current research. Written with both the student physicist and the active researcher in mind, this book is sure to be an invaluable reference for graduate students and professionals alike.
Download or read book Advances in Cryogenic Engineering written by Peter Kittel and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 2054 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Oregon Convention Center, Portland, Oregon, was the venue for the 1997 Cryogenic Engineering Conference. The meeting was held jointly with the International Cryogenic Materials Conference. John Barclay, of the University of Victoria, and David Smathers, of Cabot Performance Materials, were conference chairmen. Portland is the home of Northwest Natural Gas, a pioneer in the use of liquid natural gas, and Portland State University, where cryogenic research has long been conducted. The program consisted of 350 CEC papers, considerable more than CEC-95. This was the largest number of papers ever submitted to the CEC. Of these, 263 papers are published here, in Volume 43 of Advances in Cryogenic Engineering. Once again the volume is published in two books. CEC PAPER REVIEW PROCESS Since 1954 Advances in Cryogenic Engineering has been the archival publication of papers presented at the biennial CEC!ICMC conferences. The publication includes invited, unsolicited, and government sponsored research papers in the research areas of cryogenic engineering and applications. All of the papers published must (1) be presented at the conference, (2) pass the peer review process, and (3) report previously unpublished theoretical studies, reviews, or advances in cryogenic engineering.
Download or read book Free Electron Lasers written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Vacuum electronic sources have shown marked improvement since the invention of the magnetron before World War II, and dramatic increases in both average powers and frequencies have been achieved. Of course, much of these gains have been achieved by the development of different devices. The typical development pattern for a given device exhibits an initial period of rapid improvement followed by a plateau determined by technological or physical limitations on the concept. Slow wave devices such as magnetrons and/or klystrons operate efficiently at frequencies up through X-band or the source of the relationed cavity traveling wave tubes are used for various applications at frequencies ranging up through W-band. At still higher frequencies fast wave devices such as gyrotrons and free-electron lasers are required are required for high power operation. The free-electron laser concept is unique in that the mechanism is applicable across the entire electromagnetic spectrum, and free-electron lasers have been built at wavelengths from microwaves through the ultraviolet, and plans are under development for X-ray systems. The purpose of this paper is to describe the principal directions of free-electron laser research at the present time. To this end, they first give a brief tutorial of the physics underlying the concept, and then describe the principal development paths under way.
Download or read book Report on CEBAF written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: At the Continuous Electron Beam Accelerator Facility (CEBAF), under construction in Newport News, Virginia, a superconducting, recirculating, cw linac will provide a nominal 4GeV, 200 muA electron beam for distribution to simultaneous nuclear physics experiments in three end stations. As of August, 1992, the 45 MeV injector - with 18 superconducting cavities in 2-1/4 cryomodules identical to those being installed in the main accelerator - has completed initial commissioning and has validated systems design by meeting energy, current and beam quality specifications. Cryomodule production has reached a rate of two/month, 12 (of 40) linac cryomodules are installed in the 1300-m-circumference tunnel, and low-power linac tests are being initiated. High-power rf amplifiers and power supplies have been installed, and checkout is proceeding. The 4800 W helium refrigeration plant is in commissioning and supports injector operations. Helium transfer line installation is nearing completion. East arc dipoles are installed. The control system is operational for the injector and being installed in the accelerator. Preparations are under way for preliminary linac beam tests. All major experimental equipment components are in industrial production, initial spectrometer carriage mechanical installation is proceeding in one end station, and scientific program planning is well advanced. Accelerator completion is scheduled for the first quarter of 1994, with first physics operations in the second quarter. Recent evaluation of energy potential shows the likelihood of ~6 GeV at turn-on, with evolutionary change to 8-10 GeV thereafter. A CEBAF R & D program for high-power IR and UV free electron lasers based on superconducting rf technology is being proposed.
Download or read book A High Power Free Electron Laser Using a Short Rayleigh Length written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Free Electron Lasers (FELs) have always had the potential for high average power, since the laser medium cannot be damaged, is transparent to all wavelengths, and the exhaust heat is removed at the speed of light. At MW power levels, the resonator mirrors of the oscillator are vulnerable to damage because of the small beam size in the undulator. We present a description of an FEL that uses a resonator with a short Rayleigh length in order to increase the mode area at the mirrors and reduce the intensity. The corresponding undulator must also be short. The whole FEL system is designed to be compact and efficient, producing about 1 MW of power at 1 mu-m infrared wavelengths using an electron beam of about 100 MeV with about 1 ampere of recirculating average current.
Download or read book The Savannah River Accelerator Project And Complementary Spallation Neutron Sources written by Frank T Avignone Iii and published by World Scientific. This book was released on 1998-02-24 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This proceedings volume is a collection of papers dealing with the applications of spallation neutron sources to pure science, applied science and defense programs. The topics, ranging from accelerator technology to applications in materials science and neutrino physics, are covered by experts in their respective fields.
Download or read book Requirements and Design of a High Stable Infrared Free Electron Laser at LBL written by and published by . This book was released on 1990 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: An infrared free electron laser (IRFEL) is being designed for the Chemical Dynamics Research Laboratory (CDRL) at LBL. The FEL is based on a 50 MeV RF linac operating in synchronization to the Advanced Light Source (ALS), and will produce intense (100 [mu]J per micropulse), narrow bandwidth (narrower than 0.1%) radiation between 3 [mu] and 50 [mu]. In the design, we pay particular attention to the FEL stability issues and require that the fluctuations in electron beam energy and in timing be less than 0.05% and 0.1 ps, respectively. The FEL spectrum can then be stabilized to about 10−3, or if grating is used, to 10−4. We discuss various sources of fluctuations in the gun, the bunchers and the accelerator sections, as well as the feedback and feedforward schemes to reduce these fluctuations. The accelerator structure is chosen to be of the side coupled, standing wave type for easier control. The beam transport is made isochronous to avoid the coupling between the energy and the timing fluctuations. 9 refs., 2 figs.
Download or read book CERAF 1992 Summer Workshop written by Franz Gross and published by American Institute of Physics. This book was released on 1993 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt: In one of the last general meetings before the CEBAF accelerator is ready for operation in 1994, scientists there presented papers on the physics that will be studied at CEBAF and the equipment that will be used. Particle and nuclear physicists will learn much from this pre... FROM LONG DESCRIPTION
Download or read book Magnetic Field Measurements of the CEBAF NIST Wiggler Using the Pulsed Wire Method written by Stephen M. Wallace and published by . This book was released on 1992 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
