Abstract
Using the Westcott convention, the Westcott flux, \( \varphi_{\text{w}} \); modified spectral index, \( r\sqrt {T_{n} /T_{0} } \); neutron temperature, T n; and gold-based cadmium ratios were determined for various sampling positions in the U.S. Geological Survey (USGS) Training, Research, Isotopes, General Atomic (TRIGA) Mark I reactor. Westcott parameters were determined by a bare multi-monitor method. Thermal-neutron temperature measurements were made using lutetium foils. The differential neutron energy spectrum measurement was obtained using the computer iterative code SAND-II-SNL. Measurement of the neutron spectrum has resulted in a better knowledge of the reactor core and will improve predictive radioisotope production calculations necessary for neutron activation analysis and medical isotope production.
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Acknowledgments
The authors would like to express their sincere thanks to the reactor staff of the GSTR for their support, funding from the Colorado School of Mines, and the NRC Faculty Development Grant program, Grant Number NRC-HQ-11-G-38-0062.
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Koehl, M.A., Rundberg, R.S. & Braley, J.C. Measured neutron flux parameters in the USGS TRIGA MARK I reactor. J Radioanal Nucl Chem 306, 31–38 (2015). https://doi.org/10.1007/s10967-015-4058-9
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DOI: https://doi.org/10.1007/s10967-015-4058-9