Measurements of High-energy Excited States and γ-rays of Fission Products with a 4π Clover Detector

Journal Article · Sun Jun 15 00:00:00 EDT 2014 · Nuclear Data Sheets

DOI:https://doi.org/10.1016/J.NDS.2014.06.133· OSTI ID:22436677

Kojima, Y. ^[1]; Hayashi, H. ^[2]; Taniguchi, A. ^[3]; Shibata, M. ^[1]

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1. Radioisotope Research Center, Nagoya University, Nagoya 464-8602 (Japan)
2. Institute of Health Biosciences, The University of Tokushima, Tokushima 770-8509 (Japan)
3. Research Reactor Institute, Kyoto University, Kumatori 590-0494 (Japan)

Gamma-rays in the β-decay of {sup 147}La and {sup 145}Ba were measured using a 4π clover detector to identify high-energy excited levels and γ-rays. In order to determine γ-ray intensities, an efficiency calibration was carried out using single and multiple γ-ray emitters. Applying appropriate coincidence summing corrections, the peak efficiency was experimentally determined from 50 to 3200 keV with 3% accuracy. Through analyses of sum peaks and cascade relations of γ-rays, we newly identified 170 levels between 924 and 3568 keV, and more than 930 γ-rays in the decay of {sup 147}La, and 70 levels between 973 and 3703 keV, and 250 γ-rays in the decay of {sup 145}Ba.

• OSTI ID: 22436677
• Journal Information: Nuclear Data Sheets, Vol. 120; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0090-3752
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARIUM 145
BETA DECAY
EXCITED STATES
FISSION PRODUCTS
GAMMA RADIATION
KEV RANGE 100-1000
LANTHANUM 147
MEV RANGE 01-10