FLUKA simulations of the loss of the stored electron beam at BESSY

Author

Ott, K.

Author_Institution

BESSY, Berlin, Germany

Volume

2

fYear

2003

fDate

12-16 May 2003

Firstpage

773

Abstract

The synchrotron light source BESSY consists of a 50 MeV microtron, a full energy synchrotron and a 1.9 GeV storage ring. At synchrotron light sources the accidental loss of the stored beam can occur several times a year. This could mean a considerable risk for the users because of the bremsstrahlung flash coming through the open beamshutters. This is to our knowledge the first time, that this occurrences are discussed in detail for synchrotron light sources. We used the particle interaction and transport code FLUKA for the calculations in different scenarios. We present here additional radiation safety measures based on the FLUKA results that decrease the possible personal dose from those beam losses below 1 mSv/year. Comparisons of the FLUKA results with semi-empiric formulas for radiation through lateral shielding are presented too.

Keywords

beam handling techniques; electron beams; microtrons; particle beam dynamics; storage rings; synchrotrons; 1.9 GeV; 50 MeV; BESSY; FLUKA simulations; accidental loss; beam losses; bremsstrahlung flash; full energy synchrotron; lateral shielding; microtron; open beamshutters; particle interaction; semiempiric formulas; storage ring; stored electron beam; synchrotron light source; transport code; Electron beams; Elementary particle vacuum; Light sources; Loss measurement; Neutrons; Radiation detectors; Storage rings; Synchrotrons; Undulators; Vacuum systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289473

Filename

1289473