Beam loss and backgrounds in the CDF and DO detectors due to nuclear elastic beam-gas scattering

Author

Drozhdin, A.I. ; Lebedev, V.A. ; Mokhov, N.V. ; Nicolas, L.Y. ; Striganov, S.I. ; Tollestrup, A.V.

Author_Institution

Fermi Nat. Accel. Lab., USA

Volume

3

fYear

2003

fDate

12-16 May 2003

Firstpage

1733

Abstract

Detailed simulations were performed on beam loss rates in the vicinity of the Tevatron Collider detectors due to beam-gas nuclear elastic interactions. It turns out that this component can drive the accelerator-related background rates in the CDF and DO detectors, exceeding those due to outscattering from collimation system, inelastic beam-gas interactions and other processes. Results of realistic simulations with the STRUCT and MARS codes are presented for the interaction region components and the CDF and DO detectors. It is shown that a steel mask placed upstream of the detectors can reduce the background rates by almost an order of magnitude.

Keywords

particle beam diagnostics; position sensitive particle detectors; proton accelerators; CDF detector; D0 detector; MARS code; STRUCT code; Tevatron Collider detectors; accelerator-related background rates; beam loss rates; beam-gas nuclear elastic interactions; collimation system; nuclear elastic beam-gas scattering; Apertures; Colliding beam accelerators; Collimators; Detectors; Electromagnetic scattering; Particle accelerators; Particle beams; Particle scattering; Protons; Scattering parameters;

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.2003.1288652

Filename

1288652