Estimates and Recommendations for Coincidence Geometry
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 . 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 , 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.
- Publication Date:
- OSTI Identifier:
- Report Number(s):
- DOE Contract Number:
- W-7405-ENG-48; AC52-07NA27344
- Resource Type:
- Technical Report
- Research Org:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org:
- Country of Publication:
- United States
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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