An MCNP Feasibility Study for a Switchable Radioactive Gamma Source for SPECT Gamma Camera Calibration or Blood Irradiation
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Gamma radiation sources are used for a multitude of applications, including nuclear medicine applications. The current study investigated the feasibility of a switchable radioactive gamma source for two applications: as a calibration source for SPECT gamma cameras; and as a blood irradiator. The source was based on a sequence of (α, n) reactions followed by (n, γ) reactions. MCNP5 parametric studies were performed to investigate the effects of different moderators (e.g., heavy water, deuterated polyethylene or high density polyethylene), neutron absorbers (e.g., Sm(natural) or Gd(natural)) and geometries, on the calculated gamma flux and dose rate for the proposed source design. The results show that, although technically feasible, the applicability of the proposed source for the two intended applications is not feasible because of cost constraints for larger source designs, and low gamma fluxes and dose rates obtained for smaller source designs.
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Copyright © 2016 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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- 2016
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dranga-anmcnpfeasibilitystudyforaswitchableradioactive.pdf | 2023-05-04 | Public | Download |