Ci & apn ry dad Hi aed 1H [ee Bt ae G2 ips STE AD OII PT IT MIGHT FAIL TO BURN WELL AND GIVE A QUITE LARGE. FRACTION OF FISSION. MOREOVER, THE FRACTIONAL CLEANLINESS IS EXPECTED TO BE GREATER FOR LARGE YIELDS AND IT IS FOR LARGE YIELDS THAT CLEANLINESS IS IMPORTANT. | | OBVIOUSLY A DEVICE WITH A HIGH DEGREE OF CONFIDENCE IN PERFORMANCE WILL HAVE TO BE USED. GEORGE: COWAN IS FAMILIAR WITH OUR DISCUSSIONS ON THIS SUBJECT AND YOU MAY WISH TO QUESTION WIM WHEN HE COMES TO WASHINGTON LATER THIS WEEK, POR ANOTHER POSSIBLE METHOD OF DETERMINING FISSION YIELDS WE REFER YOU TO REDWING REPORTS ITR-1352e PROGRAM 2 SUMMARY AND ITR-1320 PROJECT 2.66 INDICATING THE POSSIBILITY OF MAKING AN ABSOLUTE DETERMINATION OF THE FISSION SOURCE. AT PRESENT LASL TS MAKING NO PREPARATIONS TO IMPLEMENT OR ASSIST IN THE SUGGESTED DEMONSTRATION, REY THIS MESSAGE TAD-22l0. - je - Cin un teu * rT oI, Appendix "Cc"

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