Argon-41 production by the OSU TRIGA III reactor Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/p2676x842

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  • A sensitive ion chamber-electrometer system was used to determine the Oregon State University TRIGA III reactor's ⁴¹Ar production rate as a function of steady state reactor power and production of ⁴¹Ar due to reactivity pulses up to $3.00. The relative contributions of the argon duct effluent and the pneumatic transfer system exhaust were measured. The minimum ⁴¹Ar production rate at 250 KW reactor power was found to be 76 μCi/min. The equilibrium production rate of ⁴¹Ar was found to be a linear function of reactor power. By linear extrapolation, at 1 MW reactor power the minimum ⁴¹Ar equilibrium production rate is predicted to be 303 μCi/min. The ⁴¹Ar produced due to a reactivity pulse was seen to be a linear function of both pulse worth and nvt. A $3.00 pulse produces 85 μCi ⁴¹Ar which is released to the atmosphere.
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