The HERMES silicon project - The radiation protection system

M. G. Van Beuzekom, Othmane Bouhali, V. Mexner, S. Mos, A. Reischl, J. J.M. Steijger

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

The HERMES-detector has recently been upgraded with a silicon detector called the Lambda Wheels. This is the first detector following the interaction region. It consists of two disks of silicon detectors close to the beamline. This location makes it vulnerable to increased radiation levels which may be caused by beam instabilities. The Lambda Wheel detector, therefore, contains a system to detect these instabilities. This additional system triggers a kicker which dumps the HERA-lepton beam when the radiation level becomes too high. This contribution describes the radiation monitor which consists of two sets of three ionization chambers each, and the data-acquisition system which reads them out. The system has been installed and is operational since the summer of 2001. The HERA-accelerator was being commissioned after an upgrade during this time and several kinds of beam instabilities were observed with this protection system. The characteristics of some events will be described.

Original languageEnglish
Pages (from-to)44-51
Number of pages8
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume512
Issue number1-2
DOIs
Publication statusPublished - 11 Oct 2003
Externally publishedYes

Fingerprint

Radiation protection
radiation protection
Silicon detectors
Detectors
Radiation
Silicon
detectors
Wheels
silicon
wheels
Ionization chambers
radiation
Particle accelerators
Data acquisition
ionization chambers
data acquisition
summer
monitors
leptons
accelerators

Keywords

  • Accelerated beams
  • Ionization chambers
  • Radiation protection
  • Silicon strip detectors

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

The HERMES silicon project - The radiation protection system. / Van Beuzekom, M. G.; Bouhali, Othmane; Mexner, V.; Mos, S.; Reischl, A.; Steijger, J. J.M.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 512, No. 1-2, 11.10.2003, p. 44-51.

Research output: Contribution to journalConference article

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AU - Mos, S.

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AU - Steijger, J. J.M.

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