Design of a portable HPGe detector: Performance characterization in identification of medical radioisotopes
| Autor: | Ron Keyser, Gary H. Kramer, Asm Sabbir Ahmed, Ben Kennedy |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Physics
Range (particle radiation) Radiation Physics::Instrumentation and Detectors Nuclear engineering Detector Analytical chemistry Signal Characterization (materials science) Semiconductor detector High Energy Physics::Experiment Nuclear Experiment Hpge detector Instrumentation Energy (signal processing) |
| Zdroj: | Radiation Measurements. 47:225-228 |
| ISSN: | 1350-4487 |
| DOI: | 10.1016/j.radmeas.2011.12.012 |
| Popis: | This paper describes the methodology to model a hand-held high purity germanium detector ( HPGe ) and its performance characteristics. MCNPX was used to model the detector and conduct the study. The detection efficiency and the performance characteristics of the detector were studied over an energy range of 50–550 keV, that covers the energy range of medical isotopes used in nuclear medicine. More specifically, the performance was compared between two common medical isotopes: 99 m Tc and 131 I. Detector efficiency was calculated for point sources, in air and tissue equivalent material. The maximum source distance at which the detector was able to capture a radiation signal was calculated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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