High duty cycle inverse Compton scattering X-ray source

Inverse Compton Scattering (ICS) is an emerging compact X-ray source technology, where the small source size and high spectral brightness are of interest for multitude of applications. However, to satisfy the practical flux requirements, a high-repetition-rate ICS system needs to be developed. To th...

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Bibliographic Details
Published in:Applied physics letters 2016-12, Vol.109 (25)
Main Authors: Ovodenko, A., Agustsson, R., Babzien, M., Campese, T., Fedurin, M., Murokh, A., Pogorelsky, I., Polyanskiy, M., Rosenzweig, J., Sakai, Y., Shaftan, T., Swinson, C.
Format: Article
Language:English
Subjects:
Applied physics
Brightness
Carbon dioxide
Carbon dioxide lasers
Elastic scattering
Electron beams
Laser beams
PARTICLE ACCELERATORS
X ray sources
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Summary:Inverse Compton Scattering (ICS) is an emerging compact X-ray source technology, where the small source size and high spectral brightness are of interest for multitude of applications. However, to satisfy the practical flux requirements, a high-repetition-rate ICS system needs to be developed. To this end, this paper reports the experimental demonstration of a high peak brightness ICS source operating in a burst mode at 40 MHz. A pulse train interaction has been achieved by recirculating a picosecond CO2 laser pulse inside an active optical cavity synchronized to the electron beam. The pulse train ICS performance has been characterized at 5- and 15- pulses per train and compared to a single pulse operation under the same operating conditions. With the observed near-linear X-ray photon yield gain due to recirculation, as well as noticeably higher operational reliability, the burst-mode ICS offers a great potential for practical scalability towards high duty cycles.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4972344