Neutron dosimetry using aqueous solutions of lithium acetate
- The Ohio State Univ., Columbus, OH (United States)
A thermal neutron dosimetry system using the 6Li(n,α)3H reaction and liquid scintillation counting of tritium was developed. Lithium acetate was chosen to supply the 6Li in the aqueous dosimetry solutions. Neutron irradiations were completed using The Ohio State University Research Reactor. After two sets of samples were irradiated, variables in the system such as the mass of lithium acetate in the solutions and the counting window of the liquid scintillation counter used to analyze the sample were chosen. The system was evaluated by completing two sets of 23 minute irradiations with the reactor at 500 kW, 50 kW, 5 kW, and one irradiation at 500 W. The samples irradiated at 500 W were below the threshold of the system, and could not be used. Prompt analysis was essential due to loss of detectable emissions in the dosimetry solutions over time. The thermal neutron fluences calculated with the data from the samples were compared to the fluences determined from gold wire irradiations. The fluence values differed at most by 6%. The fluence values calculated from the samples were consistently less than those determined from the gold wires.
- Research Organization:
- Oak Ridge Inst. for Science and Education (ORISE), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76OR00033
- OSTI ID:
- 671981
- Report Number(s):
- DOE/OR/00033-T742; ON: DE97053619; TRN: 99:000337
- Resource Relation:
- Other Information: TH: Thesis (M.S.); PBD: 1996
- Country of Publication:
- United States
- Language:
- English
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