Radiation doses to insertion devices at the advanced photon source
- Advanced Photon Source, Argonne National Lab, Argonne, Illinois60439 (United States)
Dose measurements made on and around the insertion devices (IDs) at the Advanced Photon Source are reported. Attempts are made to compare these dose rates to dose rates that have been reported to cause radiation-induced demagnetization, but comparisons are complicated by such factors as the particular magnet material and the techniques used in its manufacture, the spectrum and type of radiation, and the demagnetizing field seen by the magnet. The spectrum of radiation at the IDs has been measured and found to include a large high-energy (7 GeV) component, at least during some runs. Lead shielding installed immediately upstream of the IDs has been found to decrease the dose to the upstream ends of the IDs. It has almost no effect on the dose to the downstream ends of the IDs, however, since much of the radiation travels through the ID vacuum chamber and cannot be readily shielded. Opening the gaps of the IDs during injection and at other times also helps decrease the radiation exposure. {copyright} {ital 1997 American Institute of Physics.}
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 627882
- Report Number(s):
- CONF-9706157-; ISSN 0094-243X; TRN: 98:006223
- Journal Information:
- AIP Conference Proceedings, Vol. 417, Issue 1; Conference: SRI `97: 10. U.S. national conference on synchrotron radiation instrumentation, Ithaca, NY (United States), 17-20 Jun 1997; Other Information: PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
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