Radiation Protection Studies for LCLS Tune Up Dump
Conference
·
· Submitted to Nuclear Technology
OSTI ID:979033
The Linac Coherent Light Source (LCLS) at the Stanford Linear Accelerator Center is a pioneer fourth generation hard x-ray free electron laser that shall start to deliver laser pulses in 2009. Among other components of LCLS that present radiation protection concerns, the tune up dump (tdund) is of special interest because it also constitutes an issue for machine protection, as it is placed close to radiation sensitive components, like electronic devices and permanent magnets in the undulators. This paper first introduces the stopper of tdund looking at the heat load, and then it describes the shielding around the dump necessary to maintain the prompt and residual dose within design values. Next, preliminary comparisons of the magnetization loss in a dedicated on-site magnet irradiation experiment with FLUKA simulations serve to characterize the magnetic response to radiation of magnets like those of LCLS. The previous knowledge, together with the limit for the allowed demagnetization, are used to estimate the lifetime of the undulator. Further simulations provide guidelines on which lifetime can be expected for an electronic device placed at a given distance of tdund.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 979033
- Report Number(s):
- SLAC-PUB-14020
- Conference Information:
- Journal Name: Submitted to Nuclear Technology
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
43 PARTICLE ACCELERATORS
Astrophysics
COMP
SAFETY
XFEL
OTHER
DEMAGNETIZATION
DESIGN
FREE ELECTRON LASERS
IRRADIATION
LASERS
LIFETIME
LIGHT SOURCES
LINEAR ACCELERATORS
MAGNETIZATION
MAGNETS
PERMANENT MAGNETS
RADIATION PROTECTION
RADIATIONS
RECOMMENDATIONS
SHIELDING
STANFORD LINEAR ACCELERATOR CENTER
WIGGLER MAGNETS
Astrophysics
COMP
SAFETY
XFEL
OTHER
DEMAGNETIZATION
DESIGN
FREE ELECTRON LASERS
IRRADIATION
LASERS
LIFETIME
LIGHT SOURCES
LINEAR ACCELERATORS
MAGNETIZATION
MAGNETS
PERMANENT MAGNETS
RADIATION PROTECTION
RADIATIONS
RECOMMENDATIONS
SHIELDING
STANFORD LINEAR ACCELERATOR CENTER
WIGGLER MAGNETS