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Title: Fully Coherent X-ray Pulses from a Regenerative Amplifier Free Electron Laser

Abstract

We propose and analyze a novel regenerative amplifier free electron laser (FEL) to produce fully coherent x-ray pulses. The method makes use of narrow-bandwidth Bragg crystals to form an x-ray feedback loop around a relatively short undulator. Self-amplified spontaneous emission (SASE) from the leading electron bunch in a bunch train is spectrally filtered by the Bragg reflectors and is brought back to the beginning of the undulator to interact repeatedly with subsequent bunches in the bunch train. The FEL interaction with these short bunches not only amplifies the radiation intensity but also broadens its spectrum, allowing for effective transmission of the x-rays outside the crystal bandwidth. The spectral brightness of these x-ray pulses is about two to three orders of magnitude higher than that from a single-pass SASE FEL.

Authors:
;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
876447
Report Number(s):
SLAC-PUB-11598
physics/0602076; TRN: US200606%%660
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; AMPLIFIERS; BRIGHTNESS; ELECTRONS; FEEDBACK; FREE ELECTRON LASERS; RADIATIONS; WIGGLER MAGNETS; General Physics,ACCPHY, XFEL

Citation Formats

Huang, Zhirong, and Ruth, Ronald D. Fully Coherent X-ray Pulses from a Regenerative Amplifier Free Electron Laser. United States: N. p., 2006. Web. doi:10.2172/876447.
Huang, Zhirong, & Ruth, Ronald D. Fully Coherent X-ray Pulses from a Regenerative Amplifier Free Electron Laser. United States. doi:10.2172/876447.
Huang, Zhirong, and Ruth, Ronald D. Fri . "Fully Coherent X-ray Pulses from a Regenerative Amplifier Free Electron Laser". United States. doi:10.2172/876447. https://www.osti.gov/servlets/purl/876447.
@article{osti_876447,
title = {Fully Coherent X-ray Pulses from a Regenerative Amplifier Free Electron Laser},
author = {Huang, Zhirong and Ruth, Ronald D.},
abstractNote = {We propose and analyze a novel regenerative amplifier free electron laser (FEL) to produce fully coherent x-ray pulses. The method makes use of narrow-bandwidth Bragg crystals to form an x-ray feedback loop around a relatively short undulator. Self-amplified spontaneous emission (SASE) from the leading electron bunch in a bunch train is spectrally filtered by the Bragg reflectors and is brought back to the beginning of the undulator to interact repeatedly with subsequent bunches in the bunch train. The FEL interaction with these short bunches not only amplifies the radiation intensity but also broadens its spectrum, allowing for effective transmission of the x-rays outside the crystal bandwidth. The spectral brightness of these x-ray pulses is about two to three orders of magnitude higher than that from a single-pass SASE FEL.},
doi = {10.2172/876447},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 17 00:00:00 EST 2006},
month = {Fri Feb 17 00:00:00 EST 2006}
}

Technical Report:

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