Experimental Investigation on the Photopeak Efficiency of a Coaxial High Purity Germanium Detector for Different Geometries
Abstract
Purpose: Gamma spectrometer systems are complex instruments, and the quality of the numerical results they provide strongly depends on their reliable calibration. In this study, it was aimed to determine the full-energy peak efficiencies of a 40% p-type High Purity Germanium HPGe detector for point source, Marinelli beaker, and cylindrical container geometries in the 200-1500 keV energy range. Methods: The efficiency calibration of the HPGe gamma spectrometry system was performed using certified calibration sources. Efficiency values were determined using the gamma ray spectrum acquired for every calibration source.Results: Two different efficiency curves, at the linear scale and logarithmic scale-fitting, experimental efficiencies were plotted. The functions and parameters that fitted the efficiency curves were obtained by a computer program.Conclusion: The photopeak efficiencies decrease as energy increases and the observed efficiency curves were closely with similar studies
Keywords
Energy calibration efficiency calibration gamma spectrometry high purity germanium gamma ray detector
References
- Sharshar T, Elnimr T, El-Husseiny FA, El-Abd A. Efficiency calibration of HPGe detectors for volume-source geometries. Appl Radiat Isot 1997; 48:695-697. [CrossRef]
- Tian Z, Ouyang X, Liu L, Ruan J, Liu J. A theoretical and experimental research on detection efficiency of HPGe detector for disc source with heterogeneous distribution. J Radioanal Nucl Ch 2015; 304:905-910. [CrossRef]
- Calin MR, Calin MA, Done L, Druker AE, Calin AC. Assessment of calibration parameters for gamma-ray spectrometry systems. J Radioanal Nucl Ch 2011; 288:547-552. [CrossRef]
- Mohammadi MA, Abdi MR, Kamali M, Mostajaboddavati M, Zare MR. Evaluation of HPGe detector efficiency for point sources us- ing virtual point detector model. Appl Radiat Isot 2011; 69:521-526. [CrossRef]
- Solmaz AN, Bor D, Yücel H. Effıciency calibration of a well-type Ge detector for voluminous samples in cylindrical geometry. Proceed- ings of the NATO Advanced Training Course on New Techniques for the Detection of Nuclear and Radioactive Agents; 2009.p. 193- 205. [CrossRef]
- Epik Ö, Yener G. Experimental determination of the efficiency curve of a 184 cm3 HpGe detector in the 80 keV-1500 keV range. Balkan Physics Letters 2000; 8:851-877.
- Park CS, Sun GM, Choi HD. Experimental and simulated efficiency of a HPGe detector inthe energy range of 0.06 ~ 11 MeV. Journal of the Korean Nuclear Society 2003; 35:234-242.
- Agarwal C, Chaudhury S, Goswami A, Gathibandhe M. Full ener- gy peak efficiency calibration of HPGe detector for point and ex- tended sources using Monte Carlo code. J Radioanal Nucl Ch 2011; 287:701-708. [CrossRef]
- Karamanis D, Lacoste V, Andriamonje S, Barreau G, Petit M. Exper- imental and simulated efficiency of a HPGe detector with point- like and extended sources. Nucl Instrum Meth A 2002; 487:477-487. [CrossRef]
Abstract
References
- Sharshar T, Elnimr T, El-Husseiny FA, El-Abd A. Efficiency calibration of HPGe detectors for volume-source geometries. Appl Radiat Isot 1997; 48:695-697. [CrossRef]
- Tian Z, Ouyang X, Liu L, Ruan J, Liu J. A theoretical and experimental research on detection efficiency of HPGe detector for disc source with heterogeneous distribution. J Radioanal Nucl Ch 2015; 304:905-910. [CrossRef]
- Calin MR, Calin MA, Done L, Druker AE, Calin AC. Assessment of calibration parameters for gamma-ray spectrometry systems. J Radioanal Nucl Ch 2011; 288:547-552. [CrossRef]
- Mohammadi MA, Abdi MR, Kamali M, Mostajaboddavati M, Zare MR. Evaluation of HPGe detector efficiency for point sources us- ing virtual point detector model. Appl Radiat Isot 2011; 69:521-526. [CrossRef]
- Solmaz AN, Bor D, Yücel H. Effıciency calibration of a well-type Ge detector for voluminous samples in cylindrical geometry. Proceed- ings of the NATO Advanced Training Course on New Techniques for the Detection of Nuclear and Radioactive Agents; 2009.p. 193- 205. [CrossRef]
- Epik Ö, Yener G. Experimental determination of the efficiency curve of a 184 cm3 HpGe detector in the 80 keV-1500 keV range. Balkan Physics Letters 2000; 8:851-877.
- Park CS, Sun GM, Choi HD. Experimental and simulated efficiency of a HPGe detector inthe energy range of 0.06 ~ 11 MeV. Journal of the Korean Nuclear Society 2003; 35:234-242.
- Agarwal C, Chaudhury S, Goswami A, Gathibandhe M. Full ener- gy peak efficiency calibration of HPGe detector for point and ex- tended sources using Monte Carlo code. J Radioanal Nucl Ch 2011; 287:701-708. [CrossRef]
- Karamanis D, Lacoste V, Andriamonje S, Barreau G, Petit M. Exper- imental and simulated efficiency of a HPGe detector with point- like and extended sources. Nucl Instrum Meth A 2002; 487:477-487. [CrossRef]
Details
| Primary Language | English |
|---|---|
| Journal Section | Research Article |
| Authors | |
| Publication Date | March 1, 2017 |
| Published in Issue | Year 2017 Volume: 1 Issue: 1 |