EPRI-NP-180 Table 5-2
235U Gamma-Ray Component of Decay Heat 24 Hr Irradiation
TIME(S)  P/P0  STD DEV   MEV/FISS  STD DEV
.75 .0277426 .0007014 5.5485153 .1402885
1.00 .0270255 .0006752 5.4051046 .1350497
1.25 .0266771 .0006754 5.3354187 .1350805
1.65 .0263352 .0006528 5.2670317 .1305657
2.00 .0258190 .0006531 5.1637993 .1306175
2.45 .0251658 .0003614 5.0331516 .0722824
2.95 .0245987 .0003606 4.9197321 .0721143
3.60 .0243091 .0003571 4.8618174 .0714284
4.25 .0237884 .0003486 4.7576761 .0697198
5.00 .0232604 .0003435 4.6520796 .0686971
5.95 .0225706 .0003320 4.5141268 .0663961
7.00 .0222941 .0003304 4.4588232 .0660889
8.25 .0217335 .0003172 4.3467093 .0634389
9.65 .0212136 .0003154 4.2427282 .0630789
11.25 .0206998 .0003073 4.1399508 .0614506
13.10 .0203372 .0003045 4.0674314 .0608971
15.25 .0197989 .0002924 3.9597778 .0584800 
17.80 .0193305 .0002874 3.8660965 .0574759
20.65 .0188593 .0002803 3.7718644 .0560666 
24.10 .0182970 .0002744 3.6593966 .0548715
27.95 .0177974 .0002677 3.5594711 .0535450
32.50 .0172619 .0002612 3.4523845 .0522482
37.70 .0167335 .0002545 3.3467026 .0508924
43.75 .0162234 .0002482 3.2446780 .0496330 
60.85 .0150215 .0002326 3.0043073 .0465131 
70.25 .0146078 .0002276 2.9215641 .0455234
81.10 .0141056 .0002207 2.8211150 .0441499
93.70 .0136059 .0002143 2.7211785 .0428634
108.30 .0131117 .0002079 2.6223421 .0415764
125.15 .0126657 .0002021 2.5331311 .0404196
144.70 .0122292 .0001964 2.4458356 .0392780
167.35 .0117604 .0001902 2.3520799 .0380306
193.55 .0113129 .0001843 2.2625895 .0368538
223.90 .0109375 .0001794 2.1875048 .0358762
259.20 .0105113 .0001737 2.1022534 .0347391
308.25 .0101147 .0001685 2.0229335 .0336978
347.90 .0097327 .0001635 1.9465468 .0326909
403.15 .0093795 .0001588 1.8758912 .0317604
542.70 .0086538 .0001492 1.7307599 .0298303
621.50 .0083292 .0001449 1.6658337 .0289704
700.30 .0080504 .0001377 1.6100855 .0275370
779.10 .0077925 .0001343 1.5585077 .0268534
857.95 .0075349 .0001321 1.5069814 .0264104
936.75 .0073754 .0001292 1.4750865 .0258350
1015.55 .0071533 .0001268 1.4306533 .0253617
1094.30 .0069765 .0001227 1.3952940 .0245487
1253.75 .0066755 .0000880 1.3351090 .0175977
1604.15 .0059342 .0000880 1.1868482 .0175967
1845.95 .0055670 .0000313 1.1134019 .0062538
2169.15 .0052938 .0001151 1.0587535 .0230222
2395.75 .0050341 .0001150 l.0068259 .0229957
2721.30 .0047482 .0000643 .9496464 .0128623
2952.90 .0045457 .0000737 .9091328 .0147323
3494.55 .0041304 .0000874 .8260840 .0174840
3808.25 .0039410 .0000875 .7881993 .0175033 
4033.65 .0038168 .0000875 .7633679 .0175056
4353.65 .0036569 .0000769 .7313844 .0153736
4585.45 .0035469 .0000769 .7093819 .0153884
4898.10 .0034087 .0000495 .6817484 .0099080
5128.30 .0033132 .0000495 .6626335 .0099068
5570.25 .0031718 .0000709 .6343582 .0141734
6057.25 .0030149 .0000665 .6029879 .0132980
7033.45 .0027629 .0000865 .5525895 .0173050
7547.80 .0026567 .0000867 .5313323 .0173400
8054.20 .0025649 .0000724 .5129893 .0144838
8562.00 .0024651 .0000724 .4930256 .0144874
9390.05 .0023279 .0000717 .4655878 .0143309
10414.40 .0021240 .0000538 .4248092 .0107570
12906.90 .0018111 .0000284 .3622164 .0056861
15410.25 .0015979 .0000384 .3195757 .0076893
17891.80 .0014119 .0000370 .2823859 .0073920 
20390.50 .0012781 .0000463 .2556276 .0092641
22914.50 .0011718 .0000181 .2343553 .0036143
25406.50 .0010839 .0000309 .2167756 .0061824
30409.95 .0009536 .0000283 .1907295 .0056670
35411.60 .0008374 .0000288 .1674798 .0057507 
40408.70 .0007711 .0000278 .15422ll .0055615
45416.80 .0006967 .0000156 .1393450 .0031261
50413.55 .0006346 .0000229 .1269120 .0045879
60398.85 .0005481 .0000251 .1096294 .0050159
70421.05 .0004621 .0000270 .0924281 .0053913
89328.22 .0003711 .0000197 .0742192 .0039407
97189.97 .0003450 .0000218 .0689936 .0043685
100383.75 .0003359 .0000219 .0671818 .0043721
102018.66 .0003309 .0000185 .0661836 .0037001
151276.25 .0002145 .0000272 .0429044 .0054493