Prompt gamma-ray neutron activation analysis of boron using Deuterium–Deuterium (D–D) neutron generator
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Prompt gamma-ray neutron activation analysis (PGNAA) is a nuclear analytical technique for the determination of trace and other elements in solid, liquid or gaseous samples. The method consists in observing gamma rays emitted by a sample during neutron irradiation. The PGNAA system was built using a moderated and shielded deuterium–deuterium (D–D) neutron generator. This facility has been developed to determine the chemical composition of materials. The neutron generator is composed of three major components: An RF-Induction Ion Source, the Secondary Electron Shroud, and the Diode Accelerator Structure and Target. The generator produces monoenergetic neutrons (2.5 MeV) with a yield of 1010 n/s using 25–50 mA of beam current and 125 kV of acceleration voltage. Prompt γ-ray neutron activation analysis of 10B concentrations in Si and SiO2 matrices was carried out using a germanium detector (HPGe) and the results obtained are compared with a PGNAA system using a NaI detector. Neutron flux and energy distribution from D–D neutron generator at the sample position was calculated using Monte Carlo simulation. The interaction properties of neutrons in a Germanium detector have been studied.
KeywordsPGNAA D–D neutron generator HPGe detector NaI detector Boron MCNP6
This research was supported by (IAEA TUN2003 project) “Installation of neutron activation analysis laboratory based on a neutron generator”.
- 17.Firestone RB, Shirley VS (1996) Table of isotopes, 8th edn. Wiley, New YorkGoogle Scholar
- 18.Oliveira C, Salgado J, Goncalves IF, Carvalho FG (1993) Prompt gamma-ray neutron activation analysis of cement raw material. J Nucl Geophys 7:431–443Google Scholar
- 21.Marshall JH, Zumberge JF (1989) On-line measurements of bulk coal using prompt gamma neutron activation analysis. Nuclear Geophys 3:445Google Scholar
- 22.Ellis DV (1987) Well logging for earth scientists. Elsevier, New YorkGoogle Scholar
- 23.Adelphi Technology Inc. http://www.adelphitech.com/
- 24.Reijonen J (2007) Compact neutron generators for medical, Homeland Security and planetary exploration. Nucl Instr Methods B: 261–272Google Scholar
- 25.Popov V, Degtiarenko P, Musatov I (2010) New detector for use in fast neutron radiography. In: 12th International workshop on radiation imaging defectors, Robinson College, Cambridge UK. IOP Published for SISSAGoogle Scholar
- 26.Goorley T, James M, Booth T, Brown F, Bull J, Cox L, Durkee J, Elson J, Fensin M, Forster RA, Hendricks J, Hughes HG, Johns R, Kiedrowski B, Martz R, Mashnik S, McKinney G, Pelowitz D, Prael R, Sweezy J, Waters L, Wilcox T, Zukaitis T (2013) Initial MCNP6 release overview-MCNP6 version 1.0, LAUR-13-22934Google Scholar
- 27.Carron NJ (2007) An introduction to the passage of energetic particles through matter. Taylor & Francis, p 308Google Scholar
- 28.Anno JN (1984) Notes on radiation effects on materials. Hemisphere Publishing, Washington. ISBN 3540135596Google Scholar