Initial performance of the VENUS transition radiation detector

N. Terunuma, N. Kanda, Makoto Sakuda, Y. Chiba, Y. Fukushima, J. Haba, A. Krüger, I. Nakano, S. Nakamura, K. Ogawa, T. Ohsugi, A. Suzuki, Y. Watase

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The VENUS-TRD is a cylindrical transition radiation detector, extending from 127 cm to 157.7 cm radially and 296 cm axially. It is designed to improve the e/π separation capability of the VENUS detector by a factor of 10 in order to complement the lead glass calorimeter. It covers an angular region of |cos θ| <0.68 and contains four layers of radiators and X-ray chambers. It has been working very stably since it started data-taking at the TRISTAN e+e- storage ring in June, 1991. The pion rejection power (Rπ = 1 επ) at an electron efficiency of 90% is Rπ = 10±1 and 15±2 for isolated tracks with a momentum range of 1 <P <3 and 3 <P <10 GeV/c, respectively. It decreases to Rπ = 7±1 for tracks with P > 1 GeV/c in hadronic events due to overlap of the tracks in the chamber cells of the TRD. The VENUS-TRD is the largest TRD to perform in colliding beam experiments.

Original languageEnglish
Pages (from-to)471-476
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume323
Issue number1-2
DOIs
Publication statusPublished - Dec 1 1992
Externally publishedYes

Fingerprint

Radiation detectors
radiation detectors
Calorimeters
complement
calorimeters
Lead
chambers
Detectors
Glass
glass
detectors
cells
Experiments

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

Cite this

Initial performance of the VENUS transition radiation detector. / Terunuma, N.; Kanda, N.; Sakuda, Makoto; Chiba, Y.; Fukushima, Y.; Haba, J.; Krüger, A.; Nakano, I.; Nakamura, S.; Ogawa, K.; Ohsugi, T.; Suzuki, A.; Watase, Y.

In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 323, No. 1-2, 01.12.1992, p. 471-476.

Research output: Contribution to journalArticle

Terunuma, N, Kanda, N, Sakuda, M, Chiba, Y, Fukushima, Y, Haba, J, Krüger, A, Nakano, I, Nakamura, S, Ogawa, K, Ohsugi, T, Suzuki, A & Watase, Y 1992, 'Initial performance of the VENUS transition radiation detector', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 323, no. 1-2, pp. 471-476. https://doi.org/10.1016/0168-9002(92)90335-2
Terunuma, N. ; Kanda, N. ; Sakuda, Makoto ; Chiba, Y. ; Fukushima, Y. ; Haba, J. ; Krüger, A. ; Nakano, I. ; Nakamura, S. ; Ogawa, K. ; Ohsugi, T. ; Suzuki, A. ; Watase, Y. / Initial performance of the VENUS transition radiation detector. In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1992 ; Vol. 323, No. 1-2. pp. 471-476.
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