Radiation safety analysis for the experimental hutches at the Linac coherent light source at SLAC

The Linac Coherent Light Source (LCLS), the world's first X-ray free electron laser, will be constructed at the Stanford Linear Accelerator Center (SLAC) and is expected to be completed in 2009. A two-mirror system will be used in order to reduce background radiation in near and far experimenta...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2006-06, Vol.562 (2), p.963-966
Main Authors: Mao, X.S., Rokni, S.H., Vincke, H.
Format: Article
Language:English
Subjects:
FLUKA
Linac Coherent Light Source (LCLS)
Monte-Carlo calculation
Shielding
SLAC
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Summary:The Linac Coherent Light Source (LCLS), the world's first X-ray free electron laser, will be constructed at the Stanford Linear Accelerator Center (SLAC) and is expected to be completed in 2009. A two-mirror system will be used in order to reduce background radiation in near and far experimental hutches. This paper describes the layout of the two-mirror system and also reports on the shielding requirements for the experimental hutches. Two beam loss scenarios for radiation sources are discussed: losses from the high energy electron beam hitting beam components and X-rays produced in the 130 m long undulator and scattered on X-ray mirrors. The FLUKA Monte-Carlo particle transport code was used for the shielding design and for the determination of the radiation levels around the experimental hutches.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2006.02.116