CAJ | 학술논문

本文对乌鲁木齐建材市场居室装饰材料中天然放射性核素含量水平进行了抽样分析，并按照国家标准（GB6566-2001）进行了分类．分析结果表明，在所测量的12种石材样品中，三种核素的放射性比活度范围为：4.54＜226Ra＜25.32 Bq/Kg、3.93＜232Th＜35.33Bq/Kg、157.28＜40K＜1842.24Bq/Kg．且样品内、外照射指数结果表明，12种样品均为国家有关标准规定的A类产品，使用不受限制．并且对碘化钠（NaI）低本底γ能谱仪得到的结果与高纯锗（HPGe）探测器得到的结果进行了比较，验证了两种探测器的优势和不足之处．
본문대오로목제건재시장거실장식재료중천연방사성핵소함량수평진행료추양분석，병안조국가표준（GB6566-2001）진행료분류．분석결과표명，재소측량적12충석재양품중，삼충핵소적방사성비활도범위위：4.54＜226Ra＜25.32 Bq/Kg、3.93＜232Th＜35.33Bq/Kg、157.28＜40K＜1842.24Bq/Kg．차양품내、외조사지수결과표명，12충양품균위국가유관표준규정적A류산품，사용불수한제．병차대전화납（NaI）저본저γ능보의득도적결과여고순타（HPGe）탐측기득도적결과진행료비교，험증료량충탐측기적우세화불족지처．
Natural radioactive nuclide concentration levels of the room decoration materials in the con-struction materials market in Urumqi were analyzed by a sampling survey, and the samples were classified according to the national standard(GB6566-2001). The measurement results show that the radioactivity of three radioactive nuclide in 12 kinds of rock materials are 4.54<226Ra<25.32Bq/Kg, 3.93<232Th<35.33 Bq/Kg, and 157.28<40K<1842.24 Bq/Kg. Based on the results for the sample of internal and external exposed, the 12 kinds of rock samples are recognized as a Class A product of the corresponding national standards, i.e., as risk free materials. Moreover, the data obtained by the sodium iodide (NaI) low backgroundγ-spectrometry were compared with the data obtained by the high purity germanium (HPGe) detector, and the advantages and shortcomings of the two detectors were verified.