Fluctuation of femtosecond x-ray pulses generated by a laser-Compton scheme

Akira Endo; Masafumi Yorozu; Jinfeng Yang; Fumio Sakai

doi:10.1117/12.450406

23 October 2002 Fluctuation of femtosecond x-ray pulses generated by a laser-Compton scheme

Akira Endo, Masafumi Yorozu, Jinfeng Yang, Fumio Sakai

Proceedings Volume 4781, Advances in Laboratory-Based X-Ray Sources and Optics III; (2002) https://doi.org/10.1117/12.450406
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

Abstract

A short pulse X-ray generation experiment was performed by laser-Compton scattering through interaction between a 3 ps, 14 MeV electron beam and 100 fs, 85 mJ laser photons in a 90° scattering configuration. The observed X-ray intensity was typically 30,000 photons/pulse and roughly matched the theoretically expected intensity. The X-ray energy and pulse duration were estimated theoretically to be 2.3 keV and 280 fs from the observed electron and laser beam parameters. The pulse to pulse fluctuation of the X-ray output was measured as 25% (rms) during 30-minute operation. The fluctuation was expressed as a function of the fluctuation of the timing between the electron and laser beams. The measured fluctuation of the X-rays was approximately consistent with that caused by the fluctuation of each beam. We are improving the system to achieve the photon energy to 15 keV and the intensity to 10 million photons/pulse by increasing the electron beam energy to 40 MeV and the laser pulse energy to 1 J/pulse, and to stabilize the X-ray intensity to be better than 3% by improving the timing fluctuation between beams to be less than 300 fs. The amplitude fluctuation of each electron and laser beams are improved to be less than 1% to contribute to the achievement of the targeted 3% X-ray fluctuation.

Citation Download Citation

Akira Endo, Masafumi Yorozu, Jinfeng Yang, and Fumio Sakai "Fluctuation of femtosecond x-ray pulses generated by a laser-Compton scheme", Proc. SPIE 4781, Advances in Laboratory-Based X-Ray Sources and Optics III, (23 October 2002); https://doi.org/10.1117/12.450406

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available