Status of the LBL experiment on femtosecond x-ray generation through 90{degree} Thomson scattering
A status report on the generation of femtosecond X-ray pulses through 90{degrees} Thompson scattering is presented. The experiment involves a relativistic electron beam (tunable from 25--50 MeV) with a bunch length of 10 ps containing 1 {minus}2 nC, and a ultrashort pulse (50--200 fs), high power (4 TW) 0.8 {mu}m Ti:Al{sub 2}O{sub 3} laser system. Both beams are focussed down to about a 50 {mu}m waist size and intersect at 90{degrees}. The laser field acts as an electromagnetic undulator for the relativistic electron beam generating radiation upshifted by 2 {gamma}{sup 2} and a pulse length given by the transit time of the laser beam across the electron beam. For a 50 MeV electron beam we expect 10{sup 5} photons at 0.4 {angstrom} (10% bandwidth) in a cone angle of 6 mrad in a 170 fs pulse.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 10178435
- Report Number(s):
- LBL--34971; CONF-940618--57; ON: DE94017969
- Country of Publication:
- United States
- Language:
- English
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Femtosecond x-ray generation through 90{degree} Thomson scattering: Status of the LBL experiment
Femtosecond X-ray generation through 90{sup o} Thomson scattering: Status of the LBL experiment