Neutron Flux Characterization of a 2 Ci Am-Be Neutron Source Irradiation Cell


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Kam E., Balnan İ.

XV. International Conference on Nuclear Structure Properties,, Kırıkkale, Turkey, 28 June 2022 - 29 June 2023, pp.44-45

  • Publication Type: Conference Paper / Summary Text
  • City: Kırıkkale
  • Country: Turkey
  • Page Numbers: pp.44-45
  • Istanbul Technical University Affiliated: Yes

Abstract

In this study, the thermal and epithermal neutron flux characteristics of the irradiation channels located in different geometric positions of the Howitzer vessel, which hosts a 2 Ci Am-Be isotropic neutron source, were determined. In (Indium) the current monitor technique was used to determine the neutron flux change. For this purpose, the gamma rays emitted as a result of the 115In (n,γ)116m1In reaction were counted in the Hp-Ge gamma spectrometer. To distinguish between thermal and epithermal neutrons, the In monitor was irradiated in two series, inside a cadmium sheath and without cadmium. As a result of irradiations and counts, the places where the thermal and epithermal flux are maximum and their changes according to the distance from the source were found. In the neutron flux determination process, the standard foil technique was used. Pure gold was chosen as the standard foil material, and calculations were made for the single-energy (Eγ=411.80 keV) gamma-ray peak released as a result of the 197Au(n,γ)198Au reaction, and the thermal and epithermal neutron flux at different points from the neutron source location of the 2Ci Am-Be Howitzer cup has been appointed.