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

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.
Authors:
 [1] ;  [2] ;  [3] ;  [4] ;  [2]
  1. Graduate School of Engineering, Nagoya University, Nagoya 464-8603 (Japan)
  2. Radioisotope Research Center, Nagoya University, Nagoya 464-8602 (Japan)
  3. Institute of Health Biosciences, The University of Tokushima, Tokushima 770-8509 (Japan)
  4. Research Reactor Institute, Kyoto University, Kumatori 590-0494 (Japan)
Publication Date:
OSTI Identifier:
22436677
Resource Type:
Journal Article
Resource Relation:
Journal Name: Nuclear Data Sheets; Journal Volume: 120; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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