High-energy gamma ray spectrometer for heavy-ion induced experiments

S. Kubono, M. H. Tanaka, H. Kawakami, K. Sueki, H. Miyatake, T. Nomura, K. Morita, M. Ishihara, S. Kato, C. Konno, A. Sakaguchi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A gamma-ray detector system of large NaI(Tl) crystals has been constructed to investigated heavy ion reaction mechanisms and highly excited nuclear structure with heavy ion beams. The NaI(Tl) crystals have as a whole a cross section of hexagonal shape of 30 cm between the parallel sides and a length of 20 cm, and are composed of seven substructures based on a honeycomb shape. This is designed for detection of high energy gamma rays with high resolution, and also for use as an anti-Compton spectrometer for a Germanium detector. A good energy resolution of 2.7 (3.2)% fwhm was obtained for 22.3 MeV gamma rays with 18 (39)% detection effeciency of the full-energy-loss peak with anti-Compton mode (sum mode) operation of the trapezoidal NaI(Tl) crystals. Compton scattering background in a spectrum by a Ge detector was successfully reduced by about 60% in applying the trapezoidal NaI(Tl) crystals for Compton suppression. The performance of the spectrometer is discussed.

Original languageEnglish
Pages (from-to)74-80
Number of pages7
JournalNuclear Inst. and Methods in Physics Research, A
Volume251
Issue number1
DOIs
Publication statusPublished - Oct 1 1986

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Gamma ray spectrometers
gamma ray spectrometers
Heavy ions
heavy ions
Gamma rays
Crystals
gamma rays
Detectors
crystals
Spectrometers
detectors
Experiments
spectrometers
Compton scattering
energy
nuclear structure
substructures
Germanium
Ion beams
germanium

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Kubono, S., Tanaka, M. H., Kawakami, H., Sueki, K., Miyatake, H., Nomura, T., ... Sakaguchi, A. (1986). High-energy gamma ray spectrometer for heavy-ion induced experiments. Nuclear Inst. and Methods in Physics Research, A, 251(1), 74-80. https://doi.org/10.1016/0168-9002(86)91151-4

High-energy gamma ray spectrometer for heavy-ion induced experiments. / Kubono, S.; Tanaka, M. H.; Kawakami, H.; Sueki, K.; Miyatake, H.; Nomura, T.; Morita, K.; Ishihara, M.; Kato, S.; Konno, C.; Sakaguchi, A.

In: Nuclear Inst. and Methods in Physics Research, A, Vol. 251, No. 1, 01.10.1986, p. 74-80.

Research output: Contribution to journalArticle

Kubono, S, Tanaka, MH, Kawakami, H, Sueki, K, Miyatake, H, Nomura, T, Morita, K, Ishihara, M, Kato, S, Konno, C & Sakaguchi, A 1986, 'High-energy gamma ray spectrometer for heavy-ion induced experiments', Nuclear Inst. and Methods in Physics Research, A, vol. 251, no. 1, pp. 74-80. https://doi.org/10.1016/0168-9002(86)91151-4
Kubono, S. ; Tanaka, M. H. ; Kawakami, H. ; Sueki, K. ; Miyatake, H. ; Nomura, T. ; Morita, K. ; Ishihara, M. ; Kato, S. ; Konno, C. ; Sakaguchi, A. / High-energy gamma ray spectrometer for heavy-ion induced experiments. In: Nuclear Inst. and Methods in Physics Research, A. 1986 ; Vol. 251, No. 1. pp. 74-80.
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