Femtosecond X-rays from 90{degree} Thomson scattering
The authors report on progress on the femtosecond X-ray pulse generation experiment. The experiment involves a relativistic electron beam (50 MeV) with an rms bunch length of 10 ps containing 1--2 nC of charge, and a ultrashort pulse (50--200 fs), high power (< 4 TW) 0.8 {micro}m laser beam from a Ti:Al{sub 2}O{sub 3} laser system. Both beams are focused down to about a 50 {micro}m waist size and intersect at 90{degree}. 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 they expect 10{sup 5} photons at 0.4 {angstrom} (25% bandwidth) in a cone angle of 6--10 mrad in about a 200 fs pulse.
- Research Organization:
- Lawrence Berkeley Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 132770
- Report Number(s):
- LBL--36481; CONF-950512--345; ON: DE96002443
- Country of Publication:
- United States
- Language:
- English
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