Measurement of neutron capture cross-sections and capture γ-ray spectra of 161,162,163,164Dy at 550 keV

Hyunduk Kim, Jung Keun Ahn, Guinyun Kim, Tae Ik Ro, Won Chung Chung, Masayuki Igashira, Toshiro Ohsaki, Satoshi Mizuno

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The neutron capture cross-sections and capture γ-ray spectra of 161,162,163,164Dy were measured at a neutron energy of 550 keV by using the 3-MV Pelletron accelerator of the Research Laboratory for Nuclear Reactors at the Tokyo Institute of Technology. A neutron time-of-flight method was adopted with a 1,5-ns pulsed neutron source using the 7Li(p,n) 7Be reaction, and a large anti-Compton NaI(Tl) γ-ray spectrometer was used. A pulse-height weighting technique was applied to the observed capture γ-ray pulse-height spectra to derive the capture yields. The measured capture cross-sections were 0.221 ± 0.016, 0.110 ± 0.007, 0.119 ± 0.008, and 0.037 ± 0.005 (barn) for 161Dy, 162Dy, 163Dy, and 164Dy, respectively. The present results were in good agreement with previous measurements. However, the evaluated values of ENDF/B-VI for 162,164Dy were more than three times higher than our measurements. The capture γ-ray spectra were obtained by unfolding the observed capture γ-ray pulse-height spectra.

Original languageEnglish
Pages (from-to)1474-1480
Number of pages7
JournalJournal of the Korean Physical Society
Volume45
Issue number6
Publication statusPublished - 2004 Dec 1
Externally publishedYes

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absorption cross sections
rays
neutrons
pulse amplitude
nuclear reactors
neutron sources
accelerators
spectrometers
energy

Keywords

  • 550 keV neutrons
  • Anti-Compton NaI(Tl) spectrometer
  • Capture gamma ray spectrum
  • Dysproslum isotopes
  • Neutron capture cross-section
  • Pulse-height weighting technique
  • Time-of-Flight method

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Measurement of neutron capture cross-sections and capture γ-ray spectra of 161,162,163,164Dy at 550 keV. / Kim, Hyunduk; Ahn, Jung Keun; Kim, Guinyun; Ro, Tae Ik; Chung, Won Chung; Igashira, Masayuki; Ohsaki, Toshiro; Mizuno, Satoshi.

In: Journal of the Korean Physical Society, Vol. 45, No. 6, 01.12.2004, p. 1474-1480.

Research output: Contribution to journalArticle

Kim, H, Ahn, JK, Kim, G, Ro, TI, Chung, WC, Igashira, M, Ohsaki, T & Mizuno, S 2004, 'Measurement of neutron capture cross-sections and capture γ-ray spectra of 161,162,163,164Dy at 550 keV', Journal of the Korean Physical Society, vol. 45, no. 6, pp. 1474-1480.
Kim, Hyunduk ; Ahn, Jung Keun ; Kim, Guinyun ; Ro, Tae Ik ; Chung, Won Chung ; Igashira, Masayuki ; Ohsaki, Toshiro ; Mizuno, Satoshi. / Measurement of neutron capture cross-sections and capture γ-ray spectra of 161,162,163,164Dy at 550 keV. In: Journal of the Korean Physical Society. 2004 ; Vol. 45, No. 6. pp. 1474-1480.
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AU - Kim, Hyunduk

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AU - Kim, Guinyun

AU - Ro, Tae Ik

AU - Chung, Won Chung

AU - Igashira, Masayuki

AU - Ohsaki, Toshiro

AU - Mizuno, Satoshi

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