Laser based sub-picosecond electron bunch characterization using 90{degree} Thomson scattering
- Lawrence Berkeley National Lab., CA (United States). Accelerator and Fusion Research Div.; and others
X-rays produced by 90{degree} Thomson scattering of a femtosecond, near infrared, terawatt laser pulse off a 50 MeV electron beam are shown to be an effective diagnostic to measure transverse and longitudinal density distributions of an electron beam (e-beam) with subpicosecond time resolution. The laser beam was focused onto the e-beam waist, generating 30 keV x-rays in the forward direction. The transverse and longitudinal e-beam structure have been obtained by measuring the intensity of the x-ray beam, while scanning the laser beam across the e-beam in space and time. The e-beam divergence has been obtained through measurement of spatial and spectral characteristics of the scattered x-ray beam.
- Research Organization:
- Lawrence Berkeley National Lab., CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 505356
- Report Number(s):
- LBNL--39950; CONF-970503--159; ON: DE97007351
- Country of Publication:
- United States
- Language:
- English
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