The effect of irradiation conditions of bremsstrahlung on photonuclear reaction yields

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The effect of irradiation conditions of bremsstrahlung on photonuclear reaction yields

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- The effect of irradiation conditions of bremsstrahlung on photonuclear reaction yields
- NUCLEAR TECHNIQUES Issue 12, (1999)
- 作者机构：
  
  1. 中国科学技术大学!合肥２３００２６
  2. 中国科学技术大学国家同步辐射实验室!合肥２３００２６
- 作者简介：
- 基金信息：
  
  国家自然科学基金!29170028
- DOI：
  CLC： TL81
- Published：01 December 1999
- 稿件说明：
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[1]陈文明,李喜青,阎立峰,许炳,李裕熊.辐照条件对光核反应产额的影响[J].核技术,1999(12):708-712.

The effect of irradiation conditions of bremsstrahlung on photonuclear reaction yields[J]. Nuclear techniques, 1999, (12): 708-712.
[1]陈文明,李喜青,阎立峰,许炳,李裕熊.辐照条件对光核反应产额的影响[J].核技术,1999(12):708-712. DOI：

The effect of irradiation conditions of bremsstrahlung on photonuclear reaction yields[J]. Nuclear techniques, 1999, (12): 708-712. DOI：

摘要

利用２００ＭｅＶ电子束经不同厚度的高纯钨片转换得到的韧致辐射束诱发（19）Ｆ（ｒ，ｎ）（18）Ｆ和（12）Ｃ（ｒ，ｎ）（11）Ｃ反应，通过测定（18）Ｆ和（11）Ｃ的产额得到了转换靶钨片的最佳厚度，并与计算值进行了比较。测定了样品与转换靶的间距与产额的关系，推算了利用光子活化的方法分析Ｆ和Ｃ两种元素的探测下限分别为２．０ｎｇ和３．６ｎｇ。

Abstract

The irradiation conditions of the bremsstrahlung converted from 200MeVelectron beam at National Synchtrotyon Radiation Laboratory by tungsten converterwas studied through experimental method it was found that with 4.2-5.2mm-thicktungsten converter

the highest photonuclear reaction yields could be obtained

andthe yield decreased with increasing distance between the sample and the converterwhen the distance was less than 15cm. At present condition

the detedction limits ofC and F are 3.6 and 2.0ng respectively

when the samples are irradiated for 30minwhich is the normal injection time of NSRL.

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A study on the flux density of the bremsstrahlung converted from the 200MeV electron beam

Related Author

CHEN Wenming

LI Xiqing

YAN Lifeng

YUAN Yang

许炳

李裕熊

Related Institution

University of Science and Technology of China, Hefei 230026) XU Bing, LI Yuxiong

中国科学技术大学国家同步辐射实验室

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