Indian Journal of Scientific Research
  • Year: 2011
  • Volume: 2
  • Issue: 3

k0-IAEA determination of full energy peak efficiency for a high purity germanium detector

  • Author:
  • Njinga Raymond Limena,1, S.A. Jonahb, I.O.B. Ewac, M.O.A. Oladipod, G.A. Agboe
  • Total Page Count: 8
  • Page Number: 25 to 32

aDepartment of Physics, Ibrahim Badamasi Babangida University, Lapai, Niger State, Nigeria. E-mail: njingaraymond@yahoo.co.uk

bCenter for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria. E-mail: jonahsa2001@yahoo.com

cCenter for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria. E-mail: iobewa4@yahoo.com

dCenter for Energy Research and Training, Ahmadu Bello University, Zaria, Nigeria. E-mail: oaoladipo2004@yahoo.com

eDepartment of Physics, Ibrahim Badamasi Babangida University, Lapai, Niger State, Nigeria. E-mail: agbogodwina@yahoo.com

1Corresponding author

Online published on 24 April, 2012.

Abstract

The k0-IAEA software was used to determine full peak energy efficiency of a High Purity Germanium (HPGe) co-axial detector within the energy range of 121.8 2204.5keV and geometries of 17cm, 15cm and 2cm. The experimentally (direct technique) determination of the efficiency of the co-axial detector was within the energy range of 59.54 2204.5keV. Plotted ratios of the k0-IAEA derived efficiency over the k0-fitted FEPE values showed slight oscillations at certain energies attributed to the characteristics of the detector while the results of the ratio of k0-IAEA FEPE measurement over the experimentally derived efficiency obtained yielded inconsequential oscillations at certain energy around the unity mark. These deviations of 0.1 to 6% for the three geometries measured from the k0-IAEA experimental data agreed to the accurate and large acceptance of the software for analysis.

Keywords

k0-IAEA software, full energy peak efficiency, HPGe detector, standard sources