Measurement of fast neutron flux during PIGE experiment

Document Type : Original Article

Authors

1 Department of Physics, Imam Khomeini International University, Qazvin, Iran

2 Physics and Accelerators Research School, Nuclear Science and Technology Research Institute, Tehran, Iran

10.22052/rsm.2024.254179.1048

Abstract

The aim of this paper is to determine the fast neutrons flux incident upon the HPGe detector during the BN thick target gamma-ray yield measurements. These measurements were conducted using the deuteron beam of 0.6, 0.8, 1 and 1.2 MeV. In this work, we measured the fast neutrons flux using the 596 keV gamma peak originating from the 74Ge(n,nγ)74Ge and 73Ge(n,γ)74Ge reactions. The contributions of the capture and inelastic scattering reaction over the 596 keV gamma peak yield were measured. The advantage of the method is that no additional equipment is required and the flux of fast neutrons is measured online using the collected gamma spectrum.

Keywords

References

  1. K. S. Krane. Introductory Nuclear Physics. Wilmington, DE, U.S.A.,Wiley, 1988.
  2. I Vickridge, J. Tallon, M. Presland. High precision determination of 16O in high Tc superconductors by DIGME. Nucl. Instr. Meth. B. 85 (1-4) (1994) 95-99.
  3. H. W. Kraner, R. H. Pehl, E. E. Haller. Fast neutron radiation of high-purity germanium detectors. IEEE Trans. Nucl. Sci. 22 (1) (1975) 149-159.
  4. W. A. Mahoney, J. C. Ling, A. S. Jacobson. Radiation damage of the HEAO C-1 germanium detectors. Nucl. Instr. Meth. Phys. Res. 185 (1-3) (1981) 449-458.
  5. H. W. Kraner, J. Llacer. Neutron damage and annealing in high purity germanium radiation detectors. Nucl. Instr. Meth. 98 (3) (1972) 467-475.
  6. Á. Kiss, I. Biron, T. Calligaro, J. Salomon. Thick target yields of deuteron induced gamma-ray emission from light elements. Nucl. Instr. Meth. Phys. Res. B. 85 (1-4) (1994) 118-122.
  7. Z. Elekes, A. Z. Kiss, I. Biron, T. Calligaro, J. Salomon. Thick target c-ray yields for light elements measured in the deuteron energy interval of 0.7±3.4 MeV. Nucl. Instr. Meth. Phys. Res. B. 168 (3) (2000) 305-320.
  8. N. Jovančević, M. Krmar, D. Mrda, J. Slivka, I. Bikit. Neutron induced background gamma activity in low-level Ge-spectroscopy systems .Nucl. Instr. Meth. 612 (2) (2010) 303-308.
  9. I. Abt, A. Caldwell, K. Kroninger, J. Liu, X. Liu, B. Majorovits. Neutron interactions as seen by a segmented germanium detector. Euro. Phys. Jour. A. 36 (2) (2008) 139-149.
  10. N. Veselinović, D. Maletić, D. Joković, R. Banjanac, V. Udovičić, M. Savić, J. Puzović, I.V. Aničin, A. Dragić. Some peculiarities of digital gamma-ray spectroscopy with germanium detectors performed in presence of neutrons. Phys. Proc. 59 (1) (2014) 63-70.
  11. M. Baginova, P. Vojtyla, P. Povinec. Investigation of neutron interactions with Ge detectors. Nucl. Inst. Meth. Phys. Res. A. 897 (2018) 22-31.
  12. J. K. Tuli. Thermal Neutron Capture Gamma-rays. National Nuclear Data Center, Brookhaven National Laboratory,1983.
  13. A. Miceli, G. Festa, R. Senesi, E. Perelli Cippo, L. Giacomelli, M. Tardocchi, A. Scherillo, E. Schooneveld, C. Frost, G. Gorinid, C. Andreani. Measurements of gamma-ray background spectra at spallation neutron source beamlines. Anal. Atom. Spect. 29 (10) (2014) 1897-1903.
  14. R. A. I. Bell. Tables for Calibration of Radiation Detectors. Austral. Nat. Univ. Rep. ANU-P/606, 1974.
  15. B. Anđelić, D. Knežević, N. Jovančević, M. Krmar, J. Petrović, A. Toth, Ž. Medić, J. Hansman. Presence of neutrons in the low-level background environment estimated by the analysis of the 595.8 keV gamma peak. N Instr. Meth. 852 (2017) 80-84.
  16. M. Mayer, SIMNRA, Report IPP 9/113, Max Planck institute für plasmaphysik, Garching, Germany, 1997.
  17. G. P. Skoro, I. V. Anicin, A. H. Kukoc, Dj. Krmpotic, P. Adzic, R. Vukanovic, M. Zupancic. Environmental neutrons as seen by a germanium gamma-ray spectrometer. Nucl. Instr. Meth. 316 (2-3) (1992) 333-336.
  18. https://tendl.web.psi.ch/tendl_2021/ neutron _html/Ge/NeutronGe74gamma32.html
  19. K. Kazkaz, Finding Excited-State Decays of Germanium-76. PhD Thesis, University of Washington (2006) 44pp.
  20. C. Chasman, K. W. Jones, R. A. Ristinen. Fast neutron bombardment of a lithium-drifted germanium gamma-ray detector. Nucl. Instr. Meth. 37 (1965) 1-8.
  21. R. Wordel, D. Mouchel, T. Altzitzoglou, G. Heusserb, B. Quintana Ames, P. Meynendonckxd. Study of neutron and muon background in low-level germanium gamma-ray spectrometry. Nucl. Instr. Meth. Phys. Res. A. 369 (2-3) (1996) 557-562.
  22. H. Krishnamoorthy, A. Garai, G. Gupta, N. Dokania, V. Nanal, R. G.Pillay, A. Shrivastava. Estimation of Neutron flux in TIFR Low background Experimental Setup (TiLES). Proc. DAE-BRNS. Sym. Nucl. Phys. 61 (18) (2016) 1014-1015.

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