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Title: Estimates and Recommendations for Coincidence Geometry

Abstract

When two truly coincident gamma-rays deposit their energy within the same detector, a composite pulse which is indistinguishable from one due to a single event may be recorded by that detector. This summing e effct is known to become more important as the distance from source to detector is decreased [1]. In this short report, we give a rough estimate for the size of this e ect as a function of source-to-detector distance. The formalism used in this report is taken mainly from [2], and similar results can also be found, e.g., in [1, 3, 4]. In general, the size of the e ect will depend on the exact level scheme of the nucleus studied, but for the sake of extracting numerical values, we will assume a particular level scheme in this report.

Authors:
 [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1116982
Report Number(s):
LLNL-TR-648552
DOE Contract Number:  
W-7405-ENG-48; AC52-07NA27344
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Younes, W., and Ressler, J. J.. Estimates and Recommendations for Coincidence Geometry. United States: N. p., 2013. Web. doi:10.2172/1116982.
Younes, W., & Ressler, J. J.. Estimates and Recommendations for Coincidence Geometry. United States. doi:10.2172/1116982.
Younes, W., and Ressler, J. J.. Thu . "Estimates and Recommendations for Coincidence Geometry". United States. doi:10.2172/1116982. https://www.osti.gov/servlets/purl/1116982.
@article{osti_1116982,
title = {Estimates and Recommendations for Coincidence Geometry},
author = {Younes, W. and Ressler, J. J.},
abstractNote = {When two truly coincident gamma-rays deposit their energy within the same detector, a composite pulse which is indistinguishable from one due to a single event may be recorded by that detector. This summing e effct is known to become more important as the distance from source to detector is decreased [1]. In this short report, we give a rough estimate for the size of this e ect as a function of source-to-detector distance. The formalism used in this report is taken mainly from [2], and similar results can also be found, e.g., in [1, 3, 4]. In general, the size of the e ect will depend on the exact level scheme of the nucleus studied, but for the sake of extracting numerical values, we will assume a particular level scheme in this report.},
doi = {10.2172/1116982},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu May 23 00:00:00 EDT 2013},
month = {Thu May 23 00:00:00 EDT 2013}
}

Technical Report:

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