Demonstration experiment of a laser synchrotron source for tunable, monochromatic x-rays at 500 eV
- Naval Research Lab., Washington, DC (United States); and others
A Laser Synchrotron Source (LSS) was proposed to generate short-pulsed, tunable x-rays by Thomson scattering of laser photons from a relativistic electron beam. A proof-of-principle experiment was performed to generate x-ray photons of 20 eV. A demonstration experiment is being planned and constructed to generate x-ray photons in the range of {approximately}500 eV. Laser photons of {lambda}=1.06 {mu}m are Thomson backscattered by a 4.5 MeV electron beam which is produced by an S-band RF electron gun. The laser photons are derived from either (i) a 15 Joules, 3 nsec Nd:glass laser, (ii) the uncompressed nsec: pulse of the NRL table-top terawatt (T{sup 3}) laser, or (iii) the compressed sub-picosec pulse of the T{sup 3} laser. The RF electron gun is being constructed with initial operation using a thermionic cathode. It will be upgraded to a photocathode to produce high quality electron beams with high current and low emittance. The x-ray pulse structure consists of {approximately}10 psec within an envelope of a macropulse whose length depends on the laser used. The estimated x-ray photon flux is {approximately}10{sup 18} photons/sec, and the number of photons per macropulse is {approximately}10{sup 8}. Design parameters and progress of the experiment will be presented.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- OSTI ID:
- 238680
- Report Number(s):
- BNL-61982-Absts.; CONF-9508156-Absts.; ON: DE96002729; TRN: 96:013169
- Resource Relation:
- Journal Volume: 375; Journal Issue: 1-3; Conference: 17. international free electron laser conference, New York, NY (United States), 21-25 Aug 1995; Other Information: PBD: [1995]; Related Information: Is Part Of 17th international free electron laser conference and 2nd international FEL users` workshop. Program and abstracts; PB: 300 p.
- Country of Publication:
- United States
- Language:
- English
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