Build-up and attenuation of bete dose within a porcelain slice

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Build-up and attenuation of bete dose within a porcelain slice

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- Build-up and attenuation of bete dose within a porcelain slice
- NUCLEAR TECHNIQUES Issue 8, (1995)
- 作者机构：
  
  1. 上海博物馆
  2. 香港城市大学
  3. 上海博物馆香港城市大学
- 作者简介：
- 基金信息：
- DOI：
  CLC： R144.1
- Published：01 August 1995
- 稿件说明：
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[1]王维达,周智新,夏君定,梁宝鎏.瓷片中β剂量的积累和衰减研究[J].核技术,1995(08):454-457.

Build-up and attenuation of bete dose within a porcelain slice[J]. Nuclear techniques, 1995, (8).
[1]王维达,周智新,夏君定,梁宝鎏.瓷片中β剂量的积累和衰减研究[J].核技术,1995(08):454-457. DOI：

Build-up and attenuation of bete dose within a porcelain slice[J]. Nuclear techniques, 1995, (8). DOI：

摘要

研究了β剂量在瓷片中与深度变化的关系．这个关系是β剂量在瓷片中积累和衰减作用引起的．与瓷器热释光测定年代有关的是积累深度和积累饱和值．实验结果表明，在深度８０μｍ处，积累饱和值为１．０５．由此推算出厚度为１００μｍ的瓷片因积累而增加的平均剂量为４％，当厚度为２００μｍ时仅增加２％，当厚度为３０μｍ时平均剂量减少２％．由此可见，用这样厚度瓷片测定年代积累作用可以忽略．

Abstract

The variation of beta dose- rate with depth below the surface of a porcelain slice was investigated. The variation is due to the build- up and attenuation effectS of beta dose in the slice. It is shown that the saturation value of build-up is 1.05 at the depth of 80μ m

and therefore the average dose increment or reduction is only 2% for a thickness of 200 or 300μ m. Hence the build-up effect is negligible in the dating of porcelain slices with similar thickness.

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Related Author

XIA Junding WANG Weida LEUNG P L

梁宝鎏

王维达

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Related Institution

香港城市大学

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