Prog Med Phys.  2014 Jun;25(2):95-99. 10.14316/pmp.2014.25.2.95.

Research of Efficiency for Gas Electron Multiplier Detector to Monitor Low Energy Gamma-Ray and Beta-Ray

• Lee S
• Jung JH
• Lee R

• KMID: 1708176
• DOI: http://doi.org/10.14316/pmp.2014.25.2.95

Abstract

Radiation monitoring is one of the most important process in all places where radioactive material is used including hospital. In this preliminary study, we made GAS electron multiplier (GEM) detector and acquired relative efficiencies in order to see if GEM detector can be useful in radiation monitoring system. The relative efficiency was acquired by using the ratio of GEM detector efficiency to CdTe detector efficiency. The relative efficiency of 72% and 4% was acquired for beta-ray and gamma-ray respectively.

Keyword

GEM detector; Efficiency

MeSH Terms

Radiation Monitoring

Figure

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  Fig. 1. (a) GEM detector, (b) GEM detector system.

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  Fig. 2. GEM 검출기 내부 구조.

Reference

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