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Title Transcription
ガンマセン ソクテイ ソウチ 2キシュ ニヨル RA ドウイタイ ノ ソクテイ ト ソウゴ リヨウ
Title Alternative
Mutual Use of the Two-type γ-Spectrometers for the Measurement of Ra Radioactivity
File
language
jpn
Attribute
Natural Science
Author
Nomura, Ritsuo
Nakamura, Kosaku
Description
Two types of gamma( γ) spectrometer, which detectors are well and broad energy-type, respectively, have been set up in the Earth Science Laboratory. The Well-type γ spectrometer, EGPC 150-P16, has been mainly used for the analysis of lead and cesium, to estimate the sedimentation rate. The Broad Energy (BE)- spectrometer, GX4019, has been mainly applied to the analyses of radium isotopes in water. Both machines effectively measure radioactive elements with a low background noise. The measurement of environmental radioactivity such as 210Pb is usually needed a day and over, though it depends on the amount of activity. Our machines for the radioactivity of ^(210)Pb, Cs, ^(214)Pb, ^(228)Ac are needed at least 1 day. Because of the two busy machines, the coordination using the same sample is requested to keep a better mutual use. We performed the measurement of ^(226)Ra and ^(228)Ra using the same sample and obtained the following result:
    For ^(226)Ra: Y_(GX) = 0.00 + 1.00X_(Eu)    R^2= 0.94,
    and for ^(228)Ra: Y_(GX) = - 0.01 + 1.47X_(Eu)  R^2= 0.96,
where Y_(GX) means the content obtained by BE Ge detector, and Y_(Eu) is that of the Well-type Ge detector.
Journal Title
島根大学教育学部紀要
Volume
44
Start Page
121
End Page
124
ISSN
18808581
Published Date
2010-12-24
NCID
AA12171265
Publisher
島根大学教育学部
Publisher Aalternative
Faculty of Education Shimane University
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
Gyoseki ID
e12381
OAI-PMH Set
Faculty of Education
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