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This article is cited in 15 scientific papers (total in 15 papers)
INSTRUMENTS AND METHODS OF INVESTIGATION
Molybdenum-99 production via lead and bismuth moderators and milli-structure-$^{98}$Mo samples by indirect production technique using Monte Carlo method
A. Khorshidi Paramedical School, Gerash University of Medical
Sciences, Gerash, Iran
Abstract:
We describe the design of a neutron activator that contains a beryllium target, a lead/bismuth moderator, graphite/$\rm PbF_{2}$ reflectors, and a boron absorber. Production of the $^{99}$Mo isotope using millimeter-sized $^{98}{\rm Mo}$ samples located in various regions of the activator was simulated using the MCNPX code. If the $^{98}{\rm Mo}$ samples are placed in the reflector region, the yield increases due to a larger flux of epithermal neutrons.
Keywords:
neutron activator, neutron moderator materials, adiabatic resonance crossing, radioisotope production, molybdenum transmutation, nuclear medicine, Monte Carlo method.
Received: April 26, 2018 Revised: September 3, 2018 Accepted: September 13, 2018
Citation:
A. Khorshidi, “Molybdenum-99 production via lead and bismuth moderators and milli-structure-$^{98}$Mo samples by indirect production technique using Monte Carlo method”, UFN, 189:9 (2019), 997–1007; Phys. Usp., 62:9 (2019), 931–940
Linking options:
https://www.mathnet.ru/eng/ufn6297 https://www.mathnet.ru/eng/ufn/v189/i9/p997
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