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塑料闪烁体的辐照特性
Radiation Hardness Properties of Plastic Scintillators
【摘要】 利用60Co放射源分别对3种塑料闪烁体(BC-408,EJ-200,BC-404)进行辐照损伤研究,比较辐照前后的透射谱、发射谱及光产额的变化,发现3种闪烁体在低剂量具有较好的抗辐照性能;当照射剂量超过1.44×104Gy时,透射谱明显变坏,光输出减少很严重,但发射谱却保持不变.
【Abstract】 Using 60Co radioactive source,the radiation damage properties of three kinds of plastic scintillators,BC-408, EJ-200 and BC-404 were studied.By the study of the variation of transmission spectra,emission spectra and light yield, it can be found that the scintillators have good irradiation hardness at low dose.When the dose is over 1.44×104Cy, the transmission spectrum becomes worse and the light output decrease very much.However,the emission spectrum is unchanged.
【关键词】 塑料闪烁体;
透射谱;
发射谱;
光产额;
辐照损伤;
【Key words】 plastic scintillators; transmission spectra; emission spectra; light yield; radiation damage;
【Key words】 plastic scintillators; transmission spectra; emission spectra; light yield; radiation damage;
【基金】 北京正负电子对撞机重大改造工程项目;中国科学院知识创新工程(U-602和U-34(高能物理研究所));国家自然科学基金(10491305,10225524)资助~~
- 【文献出处】 高能物理与核物理 ,High Energy Physics and Nuclear Physics , 编辑部邮箱 ,2006年09期
- 【分类号】TL812
- 【被引频次】9
- 【下载频次】450