A high precision laser alignment monitoring system for HERMES tracking detectors

T. A. Shibata, Y. Sakemi, H. Kobayashi, S. Yoneyama, T. Harano, K. Shibatani, M. Kurisuno, H. Ogami, C. A. Miller

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A high precision alignment system has been developed for online monitoring of the tracking detectors of HERMES. The system consists of a He-Ne laser, Fresnel zone plates, CCD cameras, and electronics to read out the image. It records the alignment information of each detector automatically every 30 min during the experiment. The relative detector positions can be monitored with a precision of better than ± 60 μm (1σ).

Original languageEnglish
Pages (from-to)75-80
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume411
Issue number1
DOIs
Publication statusPublished - 1998 Jul 1

Keywords

  • Alignment
  • Fresnel zone plate
  • Laser
  • Tracking detector

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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