Magnetic Separation for Nuclear Material Surveillance

New correlation for the capture cross section in high‐gradient magnetic separation

“…In both situations the error was never larger than about 10%. This result was consistent with that reported elsewhere (Lawson and Gerber, 1990;Gerber and Lawson, 1989;Watson, 1973;Cummings et al, 1976;Worl et al, 1997;Schake et al, 1994;Prenger et al, 1993;Avens et al, 1992;Friedlaender et al, 1981 a,b;Drummond, 1976, 1975;Gerber et al, 1996;Kramer et al, 1990). Figure 6 compares the results from the new correlation with those obtained by Watson (1973) from a similar trajectory model in terms of U,/U,.…”

“…The terms Urn/Uo and Ngr on the other hand, represent ratios of the long-range magnetic and gravitational forces, respectively, to the fluid drag force. The effect of gravity, although small and normally ignored Avens et al, 1992;Cummings et al, 1976;Friedlaender et al, 1981a,b;Gerber et al, 1996;Gerber, 1994Gerber, , 1980Gerber and Lawson, 1989;Gerber and Birss, 1983;Kramer et al, 1990;Lawson and Gerber, 1990;Drummond, 1976, 1975;Prenger et al, 1993;Schake et al, 1994;Watson, 1973Watson, , 1978Worl et al, 1997), is examined here to make the correlation more complete. Similar to Watson (1973) and others (Cowen et al, 1976), the trajectory model, depicted in Eqs.…”