Fermilab Booster beam collimation and shielding

Author

Mokhov, N.V. ; Drozhdin, A.I. ; Kasper, P.H. ; Lackey, J.R. ; Prebys, E.J. ; Webber, R.C.

Author_Institution

Fermi Nat. Accel. Lab., USA

Volume

3

fYear

2003

fDate

12-16 May 2003

Firstpage

1503

Abstract

The beam power in the upgraded Booster at 8 GeV and 10 Hz will be 64 kW. Beam loss can result in high radiation loads in the ring. The purpose of a new beam halo cleaning system is to localize proton losses in specially shielded regions. Calculations show that this 2-stage collimation system will localize about 99% of beam loss in straight sections 6 and 7 and immediately downstream. Beam loss in the rest of the machine will be on average 0.1 W/m. Local shielding will provide tolerable prompt and residual radiation levels in the tunnel, above the tunnel at the surface and in the sump water. Results of thorough MARS calculations are presented for a new design which includes shielding integrated with the collimators, motors and controls ensuring a high performance and facilitating maintenance.

Keywords

beam handling techniques; collimators; proton accelerators; synchrotrons; 10 Hz; 64 kW; 8 GeV; Fermilab Booster beam collimation; Fermilab Booster beam shielding; beam halo cleaning system; collimators; high radiation loads; proton losses; Cleaning; Collimators; Loss measurement; Mars; Particle beam injection; Particle beams; Particle scattering; Protons; Radio frequency; Tungsten;

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.2003.1288575

Filename

1288575