Development of a high quantum efficiency photo multiplier tube

高量子效率光电倍增管的研制

基本信息

  • 批准号:
    05554003
  • 负责人:
  • 金额:
    $ 2.62万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)
  • 财政年份:
    1993
  • 资助国家:
    日本
  • 起止时间:
    1993 至 1994
  • 项目状态:
    已结题

项目摘要

Demands for a photo multiplier tube (PM tube) with a high quantum efficiency (Q.E.) are recently increasing in many fields such as the radiation measurement with scintillation counters, the fluorometric analysis, the photon counting measurement, and so on. One of the ways to improve of the Q.E.of a PM tube is to utilize the light which penetrates the photo cathode (P.C.) without producing photo electrons. We have a new idea of using the secondary P.C.and the reflector to make use of the penetrating light. In order to check the efficiencies of this idea, we measured the penetrability, the reflectance, the absorption ratio and the quantum efficiency of the P.C.in the range of the wave length between 250nm and 700nm. The data obtained at 400nm are as follows ;From this result, an improvement of the Q.E.with a factor of 15%-30% is expected with the use of the secondary P.C.and the reflector. It indicates that the secondary P.C.and the reflector are effective for the improvement of the Q.E.. It was also found that the Q.E.depends on the thickness of the P.C., and it should be studied further in order to optimize the effect of the secondary P.C.and the reflector.
对高量子效率光电倍增管(PM管)的需求近年来,在闪烁计数器辐射测量、荧光分析、光子计数测量等领域中,光电阴极的应用越来越广泛,提高光电阴极质量的方法之一是利用穿过光电阴极的光,并将其应用到光电阴极的测量中。而不产生光电子。我们有一个新的想法,使用二次PC和反射器,利用穿透光。为了检验这种想法的效率,我们测量了波长在250 nm和700 nm之间的透射率、反射率、吸收率和量子效率。P.C.in在400 nm处获得的数据如下:从这个结果来看,预期使用次级P. C.和反射器可使Q. E.提高15%-30%。结果表明,二次相位校正和反射器对提高Q. E.是有效的。还发现Q.E.取决于P.C.的厚度,为了优化二次PC和反射器的效果,还需要进一步研究。

项目成果

期刊论文数量(2)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.Shima, Y.Nagai and S.Suzuki: "Improvement of the quantum efficiency of the photo multiplier tube" Nucl.Instr.and methods, Section A. (to be submitted).
T.Shima、Y.Nagai 和 S.Suzuki:“光电倍增管量子效率的提高”Nucl.Instr.and 方法,A 部分(待提交)。
  • DOI:
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    0
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  • 通讯作者:
T. Shima, Y. Nagai and S. Suzuki: "Improvemenet of the quantum efficiency of the photo multiplier tube" Nucl. Instr. and Methods A. (発表予定).
T. Shima、Y. Nagai 和 S. Suzuki:“提高光电倍增管的量子效率”Nucl。
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SHIMA Tatsushi其他文献

SHIMA Tatsushi的其他文献

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{{ truncateString('SHIMA Tatsushi', 18)}}的其他基金

Study of the photonuclear reactions of p-nuclides by means of inorganic scintillation targets
利用无机闪烁靶研究p核素的光核反应
  • 批准号:
    23540342
  • 财政年份:
    2011
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Detection method for U and Th isotopes at ppt order with ultra low-background nuclear β-γ spectroscopy
超低背景核β-γ能谱检测ppt量级U、Th同位素的方法
  • 批准号:
    20310029
  • 财政年份:
    2008
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Reaction Mechanism of ^4He Photodisintegration and Charge Symmetry
^4He光崩解反应机理与电荷对称性
  • 批准号:
    13640287
  • 财政年份:
    2001
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Precise measurement of stellar reaction rate of ^<12>C(α, γ)^<16>O with new experimental methods
利用新实验方法精确测量^<12>C(α, γ)^<16>O恒星反应速率
  • 批准号:
    11440077
  • 财政年份:
    1999
  • 资助金额:
    $ 2.62万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).

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