Measurements of Fission-Product Deposition in the MSRE with Ge(Li) Gamma Ray Spectroscopy
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Measurements of fission products deposited in the piping, the heat exchanger, the pump bowl and the offgas system of the Molten-Salt Reactor Experiment (MSRE) were made by gamma-ray spectroscopy, following the shut-down of a long period of power operation. The remote maintenance shield and remote handling techniques were used because of high radiation coming from the shutdown reactor. A highly collimated, lithium-drifted germanium diode detector was coupled to a 400 channel analyzer to produce the energy spectra that constituted the basic measurements. These measurements were converted to area deposition concentrations for each isotope found, expressed in curies per square inch of metal surface. Ten isotopes were identified, with 5 being predominant in the heat exchanger. The results are tabulated for all the experimental data, summarized and compared to calculations of total amount of each isotope produced by the reactor. It appears that gamma ray spectroscopy is a useful technique for investigating fission product behavior in the MSRE.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE; US Atomic Energy Commission (AEC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1922290
- Report Number(s):
- CF-68-11-20; TRN: US2310620
- Country of Publication:
- United States
- Language:
- English
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