Two-dimensional measurement of natural radioactivity of granitic rocks by photostimulated luminescence technique.
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- Hareyama Mihoko
- Department of Geoscience and Technology, Graduate School of Engineering, Tohoku University
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- Tsuchiya Noriyoshi
- Department of Geoscience and Technology, Graduate School of Engineering, Tohoku University
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- Takebe Masahiro
- Department of Geoscience and Technology, Graduate School of Engineering, Tohoku University
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- Chida Tadashi
- Department of Geoscience and Technology, Graduate School of Engineering, Tohoku University
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抄録
Two-dimensional measurement of radiation produced by natural irradiation of granitic rocks was performed by the use of an imaging plate, which is a storage film coated with photostimulated phosphor (BaFBr:Eu2+). Radiation images of small volume specimens, such as thin sections were obtained with the imaging plate. Irradiation images of granitic rocks are inhomogeneous and the intensity of photostimulated luminescence per unit area, which is principally converted into the integrated dose, increases with the increasing potassium content in the rocks. The results of the present study indicate that the disintegration of 40K is the dominant radiation source of granitic rocks. The imaging plate is a new research tool for the evaluation of the natural radioactive properties of geological materials and is applicable as a semi-quantitative two-dimensional dosimeter for natural radioactivity.
収録刊行物
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- GEOCHEMICAL JOURNAL
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GEOCHEMICAL JOURNAL 34 (1), 1-9, 2000
一般社団法人日本地球化学会
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詳細情報 詳細情報について
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- CRID
- 1390001204550051840
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- NII論文ID
- 130003904629
- 10008804629
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- NII書誌ID
- AA00654975
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- COI
- 1:CAS:528:DC%2BD3cXitVemtbY%3D
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- ISSN
- 18805973
- 00167002
- http://id.crossref.org/issn/00167002
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- NDL書誌ID
- 5314158
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可