Sample chambers and vials in low-level liquid scintillation measurement

Shaowan Lu

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Sample chambers and vials in low-level liquid scintillation measurement

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- Sample chambers and vials in low-level liquid scintillation measurement
- Nuclear Techniques Vol. 07, Issue 5, (1984)
- 作者机构：
  
  中国科学院生物物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：07 February 1983，
  
  Published：1984-10
- 稿件说明：
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Shaowan Lu. Sample chambers and vials in low-level liquid scintillation measurement[J]. Nuclear techniques, 1984, 07(5): 55-58,46,75,76.
DOI：

Shaowan Lu. Sample chambers and vials in low-level liquid scintillation measurement[J]. Nuclear techniques, 1984, 07(5): 55-58,46,75,76. DOI：

摘要

随着低水平液体闪烁测量技术的应用日益扩大，人们采取种种措施改进现有仪器，以提高测量灵敏度。其中，改进原有的样品室、设计各种各样的样品瓶

[1～6]

是提高灵敏度的一个重要途径。

在研制低本底液体闪烁计数器的过程中，我们设计了不同材料的小容积样品瓶，并且改进了原有的样品室，从而使不同体积的样品均具有最佳的光收集。所设计的样品瓶密封性能良好。我们还分别检验了同一批制作的低钾玻璃瓶和石英瓶

C效率及本底的一致性。

Abstract

In order to increase the figure of merit

the sample chamber was improved and various sample vials were designed.

Three kinds of "clean" and high reflexible materials (pure aluminium

teflon and plastic film vaccum-evaporated aluminium) were used as the inner linings of the sample chamber and compared each other.

The brass chamber with the teflon inner lining was chosen in our experiment.

The diameter of the vials is the same as the usual vials but their height is different. For small sample

if we use a low vial and add appropriate chamber appendages or raise the elevater

the figure of merit can be increased.

The homogeneity and the leakage of vials were discussed.

关键词

Keywords

references

G.E Calf , Organic Scintllators and Liguid Scintillation Counting Academic Press , New York , 1977 , P. 719. 719 .

G. E. Calf and H. A. Polach , Liquid scintillation counting, recent developments , Acad. Press , New York 1974 , p. 223 .

M. A. Tamers , Proc. VI int. conf. radiocarbon and tritium dating , Pulman , Washington , 1965 , p. 53 .

T. Kuc and K. Rozanski , The Int. J. Appl, Radiat. Isotopes , 30 , 7 , 452 ( 1979 ).

G. E. Calf , Int. J. Appl. Radiat. Isotopes , 28 , 8 , 735 （ 1977 ）.

John E. Noakes , United States Patent 4021670 ( 1977 ).

中国科学院生物物理所“液闪”编译组，液体闪烁计数及其在生物学中的应用，科学出版社， 1979 年，第197页。

中国科学院生物物理所液体闪烁谱仪研制组，生物化学与生物物理进展， 5 ， 68 （ 1982 ）。

中国科学院生物物理所液体闪烁谱仪研制组，核电子学与探测技术， 2 （ 5 ）， 8 （ 1982 ）。

中国科学院生物物理所液体闪烁谱仪研制组，核电子学与探测技术， 1 , 1 , 17 （ 1981 ）.

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