Atomic bomb induced 152Eu: reconciliation of discrepancy between measurements and calculation.
In order to resolve the discrepancy between the measured and calculated 152Eu activity induced by the atomic bomb at Hiroshima, extremely low background gamma-ray spectrometry was performed for 17 granite samples collected from 134 m to more than 3 km from the hypocenter. Measurements agreed well with theoretical calculations based on DS02 up to 1.4 km from hypocenter.
Komura
K
K
Low Level Radioactivity Laboratory, Institute of Nature and Environmental Technology, Kanazawa University, Wake, Tatsunokuchi-machi, Ishikawa 923-1224, Japan. komura@yu.incl.ne.jp
Hoshi
M
M
Endo
S
S
Imanaka
T
T
Egbert
S D
SD
Rühm
W
W
Fukushima
H
H
Fujita
S
S
D000465:Algorithms; D005063:Europium / Q000032:analysis*; D053834:Explosive Agents / Q000009:adverse effects*; D005214:Fast Neutrons / Q000009:adverse effects*; D007564:Japan; D009689:Nuclear Warfare; D011829:Radiation Dosage; D012822:Silicon Dioxide / Q000032:analysis*; D013051:Spectrometry, Gamma / Q000379:methods
D053834:Explosive Agents; C007886:granite; D005063:Europium; D012822:Silicon Dioxide