Measurements of Neutron Capture Cross Sections for Gd Isotopes in the Energy Region from 10 keV to 90 keV

Journal Article · Mon Mar 13 00:00:00 EST 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2187848· OSTI ID:20798276

Kim, G N ^[1]; Chung, W C; Ro, T I ^[2]; Ohsaki, T; Igashira, M ^[3]

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1. School of Physics and Energy Science, Kyungpook National University, 1370 Sankyok-dong, Buk-gu, Daegu 702-701 (Korea, Republic of)
2. Department of Physics, Dong-A University, 840 Hadan 2-dong, Saha-gu, Busan 604-714 (Korea, Republic of)
3. Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology, 2-12-1-N1-26, O-okayama, Meguro-ku, Tokyo 152-8550 (Japan)

The neutron capture cross sections of Gd isotopes (155Gd, 156Gd, 157Gd, and 158Gd) have been measured in the neutron energy range from 10 to 90 keV using the 3-MV Pelletron accelerator of the Research Laboratory for Nuclear Reactors at the Tokyo Institute of Technology. Pulsed keV neutrons were produced from the 7Li(p,n)7Be reaction by bombarding the lithium target with the 1.5-ns bunched proton beam from the Pelletron accelerator. The incident neutron spectrum on a capture sample was measured by means of a TOF method with a 6Li-glass detector. Capture {gamma}-rays were detected with a large anti-Compton NaI(Tl) spectrometer, employing a TOF method. A pulse-height weighting technique was applied to observed capture {gamma}-ray pulse-height spectra to derive capture yields. The capture cross sections were obtained by using the standard capture cross sections of 197Au. The present results were compared with the previous measurements and the evaluated values of ENDF/B-VI.

• OSTI ID: 20798276
• Journal Information: AIP Conference Proceedings, Vol. 819, Issue 1; Conference: 12. international symposium on capture gamma-ray spectroscopy and related topics, Notre Dame, IN (United States), 4-9 Sep 2005; Other Information: DOI: 10.1063/1.2187848; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CAPTURE
CROSS SECTIONS
GADOLINIUM 155
GADOLINIUM 156
GADOLINIUM 157
GADOLINIUM 158
GAMMA RADIATION
GOLD 197
KEV RANGE
LITHIUM 6
LITHIUM 7
NEUTRON REACTIONS
NEUTRON SPECTRA
NEUTRONS
NUCLEAR DATA COLLECTIONS
NUCLEAR REACTION YIELD
PELLETRON ACCELERATORS
PROTON BEAMS
SOLID SCINTILLATION DETECTORS