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Updated: Sep 30, 2025

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
Low-cost target system for neutron activation using a medical cyclotron. Application to the non-destructive analysis
Michael Campbell1, Adrianna Tikka2
1Lakehead University, Department of Chemistry, 955 Oliver Rd, Thunder Bay, ON, P7B 5E1, Canada; Thunder Bay Regional Health Research Institute, 1040 Oliver Rd, Thunder Bay, ON, P7B 5E1, Canada.
Abstract:
A low cost and easily implemented target system for neutron activation was developed that takes advantage of the neutron flux produced as a by-product during the cyclotron production of medical isotopes. Samples are placed in close proximity to an 18O(p,n)18F target on a cyclotron operating between 18 and 22 MeV for irradiation. Analysis of the samples by gamma spectroscopy shows that activation is proportional to the neutron exposure, and the mass of the element present in the sample.
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