be transported with the steam, and the F atom is reduced to F⁻ as the steam condenses in the water phase at lower temperatures.

Since the F⁻ concentration in reactor water is believed to be very low (≤1ppb), the volatility of F-18 as HF in steam transport may be very low.

(1) C.P.Ruiz, C.C.Lin and T.L.Wong “Control of N-16 in BWR Main Steam Lines Under Hydrogen Water Chemistry Conditions”, EPRI NP-6424-SD (July 1989).

(2) Westinghouse Electric Corporation, “Source Term Data for Westinghouse Pressurized Water Reactors”, WCAP-8253 (May 1974).

(3) C.C.Lin, “Chemical Behavior and Distribution of Volatile Radionuclides in a BWR System Water Forward-Pumped Heater Drains”, Water Chemistry of Nuclear Reactor Systems 3, Vol. 1, 103 (1983), BNES (London).

(4) R.J.Law, et al, “Suppression of Radiolytic Oxygen Porduced in a BWR by Feedwater Hydrogen Addition; ibid, Vol. 2, 23 (1983).

(5) C.C.Lin, J. Radioanal. Nucl. Chem., 130, 129 (1989).

(6) M.S.Single and L.Ruby, Nucl. Tech., 17, 104 (1973).