Optimum resolution of the positron lifetime spectrometer

Ting Lu

您当前的位置：

首页 >

文章列表页 >

Optimum resolution of the positron lifetime spectrometer

更新时间：2022-08-16

- Optimum resolution of the positron lifetime spectrometer
- Nuclear Techniques Vol. 11, Issue 7, (1988)
- 作者机构：
  
  北京师范大学低能核物理研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：14 August 1987，
  
  Published：1988-07
- 稿件说明：
移动端阅览
Ting Lu. Optimum resolution of the positron lifetime spectrometer[J]. Nuclear techniques, 1988, 11(7): 13-18.
DOI：

Ting Lu. Optimum resolution of the positron lifetime spectrometer[J]. Nuclear techniques, 1988, 11(7): 13-18. DOI：

摘要

能窗的选择对正电子寿命谱仪的分辨率有决定性的影响。本文描述了一种获得谱仪最佳分辨率的方法。将正电子寿命谱仪的可工作能区分成42个小块。测量每小块能区的分辨率（

FWHM

）、计数率和峰位“走动”。从中选出分辨率小、计数率高和“走动”小的好能区。能窗是由若干个最佳小能区组成。谱仪分辨率的理论计算值和实验测量值符合得很好。

Abstract

The resolution of a positron lifetime spectrometer is mainly dependent on selection of the energy window. A method to obtain the optimum resolution is described in this paper. The workable region for a spectrometer was divided into 42 small regions. The resolution(FWHM)

the count rate and the peak walk were measured for every small region. From among them

the good regions with high count rate

narrow FWHM and small peak walk were selected. Several such good regions were selected to form the energy window. The experimental values for the resolution were found to be coincident with the theoretical values very well.

关键词

Keywords

references

W. H. Hardy and K. G, Lynn , IEEE Trans. Nucl. Sci . , NS-23 （ 1976 ）, 1 : 229 .

M. O. Bedwell and T. J. Paulus , IEEE Trans. Nucl. Sci . , NS-23 （ 1976 ）, 1 : 234 ; NS-26 （ 1979 ）, 1 : 422 .

R. R. Hasiguti and K. Fujiwara ed. , Proc. 5th int. conf. positron annihilation , Jap. Inst. Metals , Sendai, Lake Yamaraka, Jap. , 1979 , p. 375 .

B. Leskovar and C. C. Lo , Nucl. Instr. Meth. , 123 （ 1975 ）, 145 .

M. Moszynski , Nucl. Instr. Meth . , 134 （ 1976 ）, 77 .

L. C. Smedskjaer and M. J. Fluss , Meth. Exp. Phy . , 21 （ 1983 ）, 77 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Application of positron annihilation to study the effect of calcium oxide addition on the sintering process of alumina nanoceramics

Positron annihilation study on defect repair of pure iron and RPV steel under electropulsing treatment

Design of the neutron slit package for Femi chopper prototype of CSNS

Study on the microstructure and defects of Al₂O₃/ZrO₂ nano-composites by positron lifetime spectroscopy

Microstructures of the phase transition of nano-magnesium hydroxide to nano-magnesium oxide by positron annihilation lifetime spectroscopy

Related Author

YANG Xuanye

ZHAO Wenzheng

ZHANG Simin

WEN Haiyi

WU Yichu

WEN Haiyi

YANG Xuanye

ZHAO Wenzeng

Related Institution

School of Physics and Technology, Hubei Key Laboratory of Nuclear Solid State Physics, Wuhan University

Suzhou Nuclear Power Research Institute

College of Physics and Optoelectronic Engineering, Shenzhen University

Institute of High Energy Physics, Chinese Academy of Sciences

Spallation Neutron Source Science Center

AI问答

Address：2019 Jialuo Road, Jiading, Shanghai, China Postal code：201800
Tel：021-39194977 Email：LHB@sinap.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 沪ICP备05005479号-1 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
Total Visits：880647 Visits Today：174

⁰