or § A, = ——tt____. e/sq em; KE, BR een however, photons/sec/sq en = (ic/s4 om )(3.7 x 104) t and BE, t t = Ei rt where A, = (K)(Eq/ry)(B)(R) (ry) 37 xt oh K Ey, BR oe 1! dy. fae oe "ao 20h SSPE x 10%). photons/sec/sq cm, 1 Let I, = 1 r/hr at 0 +9 days K = 0.12 (ref 7) B = 1.45 (ref 6) R = 0.60 (ref 10) E = 0.344 Mev/photon at O+ §& days. The value of the average ganra energy was experimentally determined from a Shot 5 sample at 0+ & days.4/ The zanma spectrum experienced little chanpe over the period 0+ &to 0 + 10 days and its applicability to Shot 1 calculations has heen indcicated.* A t At * : it Tharefore, 7 x 10“)(1 oaetter 1.03 x 10° photons/sec/sq cm at 0 + 9 days Private communication from C.S.Cook, USNRDL 145 . Therefore, . = averare gemma energy in Mev/photon. ‘ oe 8 E,