Single crystal HPGe (80%) versus BGO shielded CLOVER detector for high precision decay rate measurements: a comparative study
- 11 Downloads
In this study, various detector configurations have been investigated in order to explore the optimal condition for decay rate measurements of radioactive samples using gamma spectroscopy technique. A limitation of detecting low energy gamma rays from decaying radioactive nuclei, is the Compton background which can be significantly reduced by rejecting Compton scattered events through active Bismuth germanate (BGO) shielding. On the other hand, for a CLOVER detector without BGO shielding, one can place the radioactive samples very close to the detector for enhancing geometrical efficiency. A single crystal High Purity Germanium (HPGe) detector can also be used for decay rate measurements. In order to measure the decay rate of nuclei decaying via gamma emission with reasonable intensity, optimal close geometry options have been investigated for various HPGe detector configurations.
KeywordsCLOVER detector HPGe detector γ-Detection efficiency BGO shielding
Amlan Ray acknowledges financial assistance from Science and Engineering Research Board, Government of India, Grant No. EMR/2016/001914. Mr S. Pathak and S. S. Alam thanks Department of Atomic Energy for financial support for carrying this experimental work.
Compliance with ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
- 13.Asgar MA, Mukherjee G, Roy T, Bhattacharya S, Bhattacharya C, Dhal A, Mahato D, Bhutani S (2016) Geant4 simulation of VECC array for nuclear spectroscopy (VENUS) and HPGe detector of NDPCI. In: Proceedings of the DAE-BRNS symposium on nuclear physics, vol 61, pp 950–951Google Scholar
- 14.Venkataramanan S, Gupta A, Kumar R, Singh R P, Muralithar S, Bhowmik R K (2006) Technical report on clover electronics module Reference No: IUAC/TR/SV/2002-03/30 (revised)Google Scholar
- 15.Linux Advanced MultiParameter System for VME based DAQ. http://www.tifr.res.in/~pell/lamps_files/vme.html. Accessed 8 Aug 2018
- 16.Chhavi Agarwal, Danu LS, Gathibandhe M, Goswami A, Biswas DC (2014) Coincidence summing corrections for a clover detector. Nucl Instrum Methods A763(240):247Google Scholar
- 17.Saha A (2013) Characterization of LaBr3(Ce) and clover HPGe detector, HBNI project reportGoogle Scholar
- 18.Bhattacharya Soumik, Dey B, Saha A, Choudhury A, Bhattacharyya S, Bhattacharjee T, Banerjee S R, Das Gupta S, Mondal D, Mukherjee G, Mukhopadhyay P, Mukhopadhyay S, Pandit D, Pal S, Roy T, Seikh I (2013) Clover detector setup at VECC. In: Proceedings of the DAE symposium on nuclear physics, vol 58, pp 906–907Google Scholar