書誌事項
- タイトル別名
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- Verification Tests on Nondestructive Assay for <sup>238</sup>U Content in Uranium-contaminated Waste Drums Using Gamma Method
- γセン ケイソク ニ ヨル ホウシャセイ ハイキブツ シュウノウ ヨウキ チュウ ノ ウラン 238 ノ テイリョウ ノ ケンショウ
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説明
We have proposed a new theory on gamma assay for 238U determination of uranium-contaminated waste drums. According to this theory, regardless of the inhomogeneity of waste matrix density or uranium source distribution, we can accurately determine the amount of 238U contained in drums nondestructively using count rates of gamma rays of two energies(1001keV and 766keV) emitted from 238U progeny nuclide 234mPa. In this paper, we have verified the theory by tests under various waste conditions made by simulated waste drums. We have estimated the relative error to be less than 20%, and the detection limit to be 1.2Bq/g when the specific activity of uranium is 25000Bq/g, in these cases. We have confirmed that this new assay system is efficient for the rational classification of uranium wastes to be disposed of.
収録刊行物
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- RADIOISOTOPES
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RADIOISOTOPES 62 (1), 1-17, 2013
公益社団法人 日本アイソトープ協会
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詳細情報 詳細情報について
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- CRID
- 1390001204156731776
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- NII論文ID
- 10031143280
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- NII書誌ID
- AN00351589
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- COI
- 1:CAS:528:DC%2BC3sXmt1Ght7g%3D
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- ISSN
- 18844111
- 00338303
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- NDL書誌ID
- 024224717
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
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- 抄録ライセンスフラグ
- 使用不可