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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 6, Number 2
JKCSEZ 6(2)
April 20, 1962 

 
Title
Radioactive Nuclide Identification of a Fall-Out Sample in Korea

방사능 낙진의 핵종검출의 일례
Author
Chong Kuk Kim

김종국
Keywords
Abstract
A tiny dust found at the balcony of the Institute indicated about 8,0000 counts per minute by T.G.C.-2 Geiger-Muller tube (1.8 mg/cm2 window-thickness) at the distance of 2 cm from the window. The main fission fragments, as identified by the present analysis, are 12.5 day Ba-140 and 33.1 day Ce-141. The gamma energies were determined using 2"×2" NaI(Tl) scintillation detector connected to RCL-256 channel pulse height analyzer. The beta energies were evaluated by Feather plot.
Page
155 - 157
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