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R&D for a Soft X-Ray Free Electron Laser Facility

Description: Several recent reports have identified the scientific requirements for a future soft x-ray light source, and a high-repetition-rate free-electron laser (FEL) facility that is responsive to these requirements is now on the horizon. R&D in some critical areas is needed, however, to demonstrate technical performance, thus reducing technical risks and construction costs. Such a facility most likely will be based on a CW superconducting linear accelerator with beam supplied by a high-brightness,… more
Date: June 8, 2009
Creator: Corlett, John; Attwood, David; Byrd, John; Denes, Peter; Falcone, Roger; Heimann, Phil et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental characteristics of a high-gain free-electron laser amplifier operating at 8-mm and 2-mm wavelengths

Description: The Electron Laser Facility (ELF) at the Lawrence Livermore National Laboratory (LLNL) uses a high-current induction linac (3.5 MeV, 1000 A), in conjunction with a pulsed electromagnetic wiggler (4.0 M, 4000 G), to operate a free electron laser (FEL) that produces intense radiation in the microwave regime (2 to 8 mm). ELF is a high-gain, single-pass amplifier, using a commercial microwave source as an oscillator input (200 W-50 kW). Previous experiments at 35 GHz produced exponential gains of 4… more
Date: June 8, 1987
Creator: Throop, A. L.; Orzechowski, T. J.; Anderson, B. R.; Chambers, F. W.; Clark, J. C.; Fawley, W. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Positron Collection in Linear Collider

Description: In the Linear Collider design, the positron capture system includes a positron production target, followed by an adiabatic matching device (solenoid), a pre-linac with solenoidal focusing, and a linac with quadrupole focusing before injection into a positron damping ring. Two schemes for positron production have been studied: (1) a conventional approach with high-energy electron beam interacting with a high-Z target and (2) polarized positron production using polarized photons generated in a he… more
Date: December 8, 2005
Creator: Batygin, Y. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Scientific Potential and Design Considerations for an Undulator Beam Line on Aladdin Storage Ring

Description: The unique features of undulator radiation, i.e., high photon flux and brightness, partial coherence, small beam divergence, spectral tunability, etc., mandate that undulators be included in the future plans for Aladdin. This will make it possible to perform the next generation of experiments in photon-stimulated spectroscopies. A team of scientists (see Appendix) has now been assembled to build an insertion device (ID) and the associated beam line at Aladdin. In considering the specifications … more
Date: April 8, 1985
Creator: Arko, A. J.; Bader, S. D.; Dehmer, J. L. & Kim, S. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Short note on undulator alignments and beam tolerances for the APS FEL at 220 MeV

Description: The APS FEL consists of a series of undulators that must be carefully aligned for optimum gain and high spectral output. In order to get a better understanding of acceptable tolerance levels for undulator alignments and for the electron beam, the authors have performed computer calculations to simulate misalignments of one undulator (undulator number 2) with respect to adjacent undulators and to check the sensitivity to unmatched beam parameters ({alpha} and {beta}) at the entrance and to a non… more
Date: October 8, 1999
Creator: Dejus, R. J. & Vasserman, I. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High-heat-load synchrotron tests of room-temperature, silicon crystal monochromators at the CHESS F-2 wiggler station

Description: This note summarizes the results of the single crystal monochromator high-heat-load tests performed at the CHESS F-2 wiggler station. The results from two different cooling geometries are presented: (1) the ``pin-post`` crystal and (2) the ``criss-cross`` crystal. The data presented were taken in August 1993 (water-cooled pin-post) and in April 1995 (water- and gallium-cooled pin-post crystal and gallium-cooled criss-cross crystal). The motivation for trying these cooling (or heat exchanger) ge… more
Date: September 8, 1995
Creator: Lee, W. K.; Fernandez, P. B.; Graber, T. & Assoufid, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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