Transmission measurement of low dose rate ions in biological samples

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Transmission measurement of low dose rate ions in biological samples

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- Transmission measurement of low dose rate ions in biological samples
- NUCLEAR TECHNIQUES Issue 8, (1999)
- 作者机构：
  
  1. 北京大学重离子物理研究所,北京
  2. ,100871
- 作者简介：
- 基金信息：
  
  国家自然科学基金;北京大学青年科学基金
- DOI：
  CLC： Q691
- Published：01 August 1999
- 稿件说明：
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[1]薛建明,王宇钢,卢希庭,颜莎,赵渭江.低剂量离子在物体样品中透射行为的研究[J].核技术,1999(08):449-453.

Transmission measurement of low dose rate ions in biological samples[J]. Nuclear techniques, 1999, (8): 449-453.
[1]薛建明,王宇钢,卢希庭,颜莎,赵渭江.低剂量离子在物体样品中透射行为的研究[J].核技术,1999(08):449-453. DOI：

Transmission measurement of low dose rate ions in biological samples[J]. Nuclear techniques, 1999, (8): 449-453. DOI：

摘要

利用金硅面垒探测器测量低剂量率的F离子在生物组织样品（洋葱内表皮和芸豆种皮）中的透射能谱，用来研究荷能离子在生物样品中的能损和深度分布。实验中F离子能量为900keV—6MeV，剂量率大约为104ions／s·cm2；用SEM观测样品在离子束轰击下可能发生的损伤。实验中测量了不同能量离子在样品中的透射能谱，利用SINRA对测量得到的透射能谱进行了拟合分析，并讨论了生物样品的特殊结构对透射能谱和离子深度分布测量结果的影响。

Abstract

In order to study energetic ion range and depth profile in biological samples

transmission spectra of F ions through kidney beau coat samples and onion innersurface membrane samples have been measured with a silicon surface detector. Theion beam energy ranged from 900keV to 6MeV at a low dose rate of about 104ions/s’cm2; SEM experiment was carried out to observe sample’s topography after ionirradiation. The spectra were simulated by using computer software SINRA. Theinfluence of biological sample’s special structure and composition on ion space rangeand depth profile was discussed.

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