Sno-str 1993 93-06
نویسندگان
چکیده
The requirements on a neutral current additive tc the heavy water in the SNO project are as follows: water solubility, low inherent radioactivity or the availability of an easy path of purification from thorium and radium, the possibility for easy separation from the water phase and safety. The solution of such an additive is expected to be transparent in the visible range, stable for extended (e.g. several months-years) periods of time, of relatively neutral pH, and of low reactivity with respect to acrylic, stainless steel and possibly polypropylene. A method of assaying the radium and thorium in such a solution should be available.
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