245AM 245PU B- DECAY 1968Da02,1968WAZZ 23NDS 202305
245AM H TYP=FUL$AUT=C.D. Nesaraja$CIT=NDS 189, 1 (2023)$CUT=14-Feb-2023$
245AM c 1979Bo30: {+245}Pu produced from {+244}Pu neutron capture reaction.
245AM2c Gammas from the {+245}Pu |b decay were measured with high precision
245AM3c curved crystal |g-ray spectrometers at the high flux reactor in
245AM4c Grenoble. Deduced levels energies.
245AM c 1968Da02: {+245}Pu produced from thermal neutron incident on enriched
245AM2c {+244}Pu at Oak Ridge National Laboratory followed by chemical
245AM3c purification. {+245}Pu was prepared into thin films for the
245AM4c conversion electron, |b and X-ray measurements, and
245AM5c thicker sources for the |g-ray measurements. Conversion electrons and
245AM6c the |b-spectrum were measured using Si(Li) detectors. Gamma rays were
245AM7c measured with a Ge(Li) and NaI(Tl) detectors. For the low energy
245AM8c region, a Xe-filled proportional counter and Si(Li) detector were used.
245AM8c Measured t{-1/2}, E|g, I|g, Ice, E|b, I|b, |g|g-coin, and |b|g-coin.
245AM9c Deduced levels, J|p, and log{Ift}
245AM c 1968WaZZ: {+245}Pu was produced at the Oak Ridge Research Reactor from
245AM2c neutron incident on enriched {+244}Pu. Gamma rays were measured with a
245AM3c Ge(Li) detector with a FWHM=2.48 keV for 1.332-MeV |g rays.
245AM c
245AM c The {+245}Pu |b{+-} decay scheme shown is basically that proposed by
245AM2c 1968Da02 and 1968WaZZ. Two additional levels, at 757 and 796 keV, were
245AM3c tentatively proposed by 1968Da02. Of the transitions suggested to
245AM4c deexcite these levels, 670, 738, and 796 |g rays were placed elsewhere
245AM5c in the decay scheme; energy fits of remaining |g rays are poor. These
245AM6c two proposed levels and their de-excitation |g rays are not
245AM7c given here.
245AM c
245AM cB $|b branch intensities shown on the decay scheme have been
245AM2cB deduced by the evaluator from |g-ray transition intensity balances.
245AM3cB The individual branchings to levels in the 5/2[642] and 5/2[523]
245AM4cB bands could not be deduced because the low-energy gammas expected
245AM5cB between them were not observed. The total |b{+-} intensity to these
245AM6cB levels is taken to be 1/5 of the total |b intensity to the 7/2[633]
245AM7cB band, as reported in 1968Da02.
245AM c
245AM cB $Beta spectrum measured by 1968Da02:
245AM cB $Singles: E(|b)=1210 {I40}, I(|b) |? 1/5 of 930-keV |b{+-}
245AM cB $(327|g)|b-coincidence: E(|b)=930 {I30}
245AM cB $(800|g)|b coincidence: E(|b) |? 400
245AM c
245AM cG $Of the 114 |g rays observed, 47 |g rays have not been placed
245AM2cG on the decay scheme. Sum of photon intensities of unplaced gammas
245AM3cG amounts to about 14% of the 327|g photon intensity. The expected
245AM4cG low-energy intra- and inter-band transition between the states in the
245AM5cG 5/2[642] and 5/2[523] bands, except the 28-keV transition, have not
245AM6cG been observed. These transitions should settle the imbalances
245AM7cG at those levels with the present decay scheme.
245AM c
245AM cG E$From 1968WaZZ except as noted.
245AM cG E(B)$From 1979Bo30
245AM cG RI$From 1968WaZZ.
245AM cG M$From ce(K) data listed in comments, except as noted. The evaluator
245AM2cG deduced the ce(K) data from Ice(K) (derived from I|g and |a(K)exp in
245AM3cG 1968Da02) and I|g (1968WaZZ). The ce(K) data was re-normalized to
245AM4cG the strongest 327.428-keV transition with |a(K)(327)= 66 {I23} (BrIcc)
245AM cG MR$From ce data (1968Da02) as listed in comments.
245AM cL E$From least-squares fit to E|g data by the evaluator.
245AM c
245AM CL BAND(A)$5/2[642] ROTATIONAL BAND.
245AM CL BAND(B)$5/2[523] ROTATIONAL BAND.
245AM CL BAND(D)$7/2[633] ROTATIONAL BAND.
245AM DG CC$FROM BrIcc v2.3e (17-Jun-2020) 2008Ki07, "Frozen Orbitals" appr.
245PU P 0.0 (9/2-) 10.54 H 6 1278 14
245PU cP QP$From 2021Wa16
245AM N 0.176 24 1.0
245AM PN 4
245AM cN NR$Deduced by the evaluator using: I|b(930)/I|b(1210)=5, as
245AM2cN measured in 1968Da02, and sum of |g-ray transition intensities to
245AM3cN levels below 327 keV equal to [100% - I|b(1210)]. The uncertainty
245AM4cN in I|g normalization=0.18 {I2} includes 4% from the total intensity of
245AM5cN |g rays unplaced in the decay scheme, and 5%, estimated by the
245AM6cN evaluator for the experimental reported ratio of I|b(930)/I|b(1210)=5.
245AM G 277.0 5 0.10 5
245AM2 G %IG=0.018 9
245AM G 293.2 5 0.10 5
245AM2 G %IG=0.018 9
245AM G 299.8 7 0.10 5
245AM2 G %IG=0.018 9
245AM G 333.1 3 0.2 1
245AM2 G %IG=0.035 18
245AM G 392.7 4 0.4 3
245AM2 G %IG=0.07 5
245AM G 423.2 3 0.2 LT
245AM2 G %IG=0.035 5
245AM G 439.0 100.2 1
245AM2 G %IG=0.035 18
245AM G 450.0 100.2 1
245AM2 G %IG=0.035 18
245AM G 479.8 100.12 6
245AM2 G %IG=0.021 11
245AM G 486.3 6 0.2 1
245AM2 G %IG=0.035 18
245AM G 514.6 2 1.0 2
245AM2 G %IG=0.18 4
245AM G 518.2 5 0.3 1
245AM2 G %IG=0.053 19
245AM G 530.6 3 0.2 1
245AM2 G %IG=0.035 18
245AM G 598.8 3 0.7 2
245AM2 G %IG=0.12 4
245AM G 624.4 4 1.3 2
245AM2 G %IG=0.23 5
245AM G 642 0.2 LT
245AM2 G %IG=0.035 5
245AM G 657.2 7 0.8 4
245AM2 G %IG=0.14 7
245AM G 662.2 7 0.5 2
245AM2 G %IG=0.09 4
245AM G 687.6 8 0.2 1
245AM2 G %IG=0.035 18
245AM G 691 0.2 LT
245AM2 G %IG=0.035 5
245AM G 701.7 3 0.4 2
245AM2 G %IG=0.07 4
245AM G 707.98 20 1.6 3
245AM2 G %IG=0.28 7
245AM G 712 0.2 LT ?
245AM2 G %IG=0.035 5
245AM G 733.5 4 0.5 2
245AM2 G %IG=0.09 4
245AM G 740.2 7 0.8 3
245AM2 G %IG=0.14 6
245AM G 743.70 200.9 2
245AM2 G %IG=0.16 4
245AM G 750.1 10 0.1 1
245AM2 G %IG=0.018 18
245AM G 758.2 8 0.2 1
245AM2 G %IG=0.035 18
245AM G 776.66 20 1.2 2
245AM2 G %IG=0.21 5
245AM G 781.55 300.4 2
245AM2 G %IG=0.07 4
245AM G 821.9 7 0.5 2
245AM2 G %IG=0.09 4
245AM G 879.6 4 0.3 1
245AM2 G %IG=0.053 19
245AM G 923.0 6 0.3 1
245AM2 G %IG=0.053 19
245AM G 925.4 100.10 5
245AM2 G %IG=0.018 9
245AM G 945.2 5 0.3 1
245AM2 G %IG=0.053 19
245AM G 964.0 7 0.25 10
245AM2 G %IG=0.044 19
245AM G 972.6 5 0.5 2
245AM2 G %IG=0.09 4
245AM G 975 1 1.5 10
245AM2 G %IG=0.26 18
245AM G 982.4 7 0.5 2
245AM2 G %IG=0.09 4
245AM G 1001.0 100.15 10
245AM2 G %IG=0.026 18
245AM G 1007.31 152.4 6
245AM2 G %IG=0.42 12
245AM G 1013.2 3 0.6 2
245AM2 G %IG=0.11 4
245AM G 1028.2 100.10 4
245AM2 G %IG=0.018 7
245AM G 1036.2 8 0.05 2
245AM2 G %IG=0.009 4
245AM G 1042.4 8 0.09 3
245AM2 G %IG=0.016 6
245AM G 1079.1 10 0.03 1
245AM2 G %IG=0.0053 19
245AM G 1093.7 7 0.08 3
245AM2 G %IG=0.014 6
245AM L 0.0 5/2+ 2.05 H 1 A
245AM cL T$From Adopted Level
245AM B ?
245AM L 19.198 11 7/2+ A
245AM B
245AM L 27.95 14(5/2-) B
245AM G 28 1 4 2 (E1) 3.8 4
245AM2 G %IG=0.7 4
245AMS G LC=2.78 27$MC=0.73 7
245AMS G NC=0.195 20$OC=0.044 4$PC=0.0059 5$QC=0.000138 10
245AM cG M$From nonobservation of any ce-line, 1968Da02 suggested that
245AM2cG 28|g was an E1 transition as any other multipolarity would have a
245AM3cG very high conversion coefficient
245AM L 47.075 12 (9/2+) A
245AM B 10 AP 8.3 AP
245AMS B EAV=404.8 54
245AM cB E$1210 keV {I40} (1968Da02
245AM cB IB total |b intensity to 5/2[642] and 5/2[523] bands.
245AM L 70.42 9(7/2-) B
245AM B
245AM L 87.65 4 (11/2+)
245AM B
245AM L 124.66 8(9/2-) B
245AM B
245AM L 134.49 11 (13/2+)
245AM B ?
245AM L 190.81 13 (11/2-) B
245AM B
245AM L 327.429 8 7/2+ D
245AM B 51 13 7.20 12
245AMS B EAV=301.2 51
245AM cB E$930 keV {I30} (1968Da02)
245AM G 280.385 13 7.6 8 (M1+E2) 0.7 +7-6 1.1 4 B
245AM2 G %IG=1.34 23
245AMS G KC=0.9 4$LC=0.21 4$MC=0.054 8
245AMS G NC=0.0147 20$OC=0.0037 5$PC=0.00068 13$QC=3.6E-5 15
245AM cG $ce(K)=0.83 {I38}
245AM G 308.222 8 29 3 M1(+E2) 0.6 9 0.9 4 @
245AM2 G %IG=5.1 9
245AM2 G FLAG=B
245AMS G KC=0.7 4$LC=0.17 4$MC=0.041 9
245AMS G NC=0.0113 24$OC=0.0028 6$PC=5.3E-4 14$QC=3.0E-5 15
245AM cG $ce(K)=0.74 {I33}, ce(L)=0.15 {I6}, K/L=4.9 {I29}.
245AM G 327.428 8 150 15M1(+E2) 0.5 7 0.85 33 B
245AM2 G %IG=26 4
245AMS G KC=0.66 29$LC=0.145 34$MC=0.036 7
245AMS G NC=0.0098 20$OC=0.0025 5$PC=0.00046 11$QC=2.7E-5 11
245AM cG $ce(K)=0.66 {I24}, ce(L)=0.15 {I6}, K/L=4.4 {I23}.
245AM L 395.873 11 9/2+ D
245AM B 3.8 9 8.21 11
245AMS B EAV=276.6 51
245AM G 308.222 @ ?
245AM2 G FLAG=B
245AM G 348.782 9 5.7 6 [M1] 0.862 12 B
245AM2 G %IG=1.00 17
245AMS G KC=0.680 10$LC=0.1365 19$MC=0.0332 5
245AMS G NC=0.00908 13$OC=0.002286 32$PC=0.000437 6$QC=2.77E-5 4
245AM G 376.676 3 19 2 (M1) 0.698 10 B
245AM2 G %IG=3.3 6
245AMS G KC=0.551 8$LC=0.1104 15$MC=0.0269 4
245AMS G NC=0.00734 10$OC=0.001849 26$PC=0.000353 5$QC=2.241E-5 31
245AM cG $ce(K)=0.61 {I26}
245AM G 395.87 15 0.6 2 [E2] 0.1004 14
245AM2 G %IG=0.11 4
245AMS G KC=0.0482 7$LC=0.0382 5$MC=0.01033 15
245AMS G NC=0.00285 4$OC=0.000691 10$PC=0.0001187 17$QC=2.505E-6 35
245AM L 475.522 22 11/2+ D
245AM B 0.40 19 9.05 21
245AMS B EAV=248.3 50
245AM G 341.00 15 0.6 1 [M1] 0.917 13
245AM2 G %IG=0.106 23
245AMS G KC=0.724 10$LC=0.1453 20$MC=0.0354 5
245AMS G NC=0.00967 14$OC=0.002434 34$PC=0.000465 7$QC=2.95E-5 4
245AM G 387.879 32 1.7 4 [M1] 0.644 9 B
245AM2 G %IG=0.30 8
245AMS G KC=0.509 7$LC=0.1019 14$MC=0.02479 35
245AMS G NC=0.00677 9$OC=0.001705 24$PC=0.000326 5$QC=2.067E-5 29
245AM G 428.438 22 3.1 3 [M1] 0.491 7 @
245AM2 G %IG=0.55 9
245AM2 G FLAG=B
245AMS G KC=0.388 5$LC=0.0775 11$MC=0.01886 26
245AMS G NC=0.00515 7$OC=0.001297 18$PC=0.0002481 35$QC=1.573E-5 22
245AM L 563.04 20 (13/2+) D
245AM B 0.02 4 10.4 9 1U
245AMS B EAV=215.3 45
245AM G 428.438 @ ?
245AM G 475.1 6 0.35 15[M1] 0.371 5
245AM2 G %IG=0.062 28
245AMS G KC=0.293 4$LC=0.0584 8$MC=0.01421 20
245AMS G NC=0.00388 6$OC=0.000977 14$PC=0.0001869 27$QC=1.185E-5 17
245AM L 887.468 14(7/2+)
245AM B 14.7 22 6.45 9
245AMS B EAV=110.8 44
245AM G 411.935 41 2.9 3 [E2] 0.0903 13 B
245AM2 G %IG=0.51 9
245AMS G KC=0.0450 6$LC=0.0332 5$MC=0.00896 13
245AMS G NC=0.002470 35$OC=0.000600 8$PC=0.0001034 14$QC=2.293E-6 32
245AM G 491.591 9 16 2 (E2) 0.0579 8 B
245AM2 G %IG=2.8 5
245AMS G KC=0.0329 5$LC=0.01835 26$MC=0.00489 7
245AMS G NC=0.001345 19$OC=0.000328 5$PC=5.74E-5 8$QC=1.564E-6 22
245AM cG $ce(K)|<0.4
245AM G 560.134 49 32 3 (E2) 0.0427 6 @
245AM2 G %IG=5.6 9
245AM2 G FLAG=B
245AMS G KC=0.0262 4$LC=0.01217 17$MC=0.00321 4
245AMS G NC=0.000882 12$OC=0.0002158 30$PC=3.81E-5 5$QC=1.191E-6 17
245AM cG $ce(K)=0.024 {I11}
245AM G 762.73 10 4.2 4 [E1] 0.00677 9
245AM2 G %IG=0.74 12
245AMS G KC=0.00548 8$LC=0.000978 14$MC=0.0002346 33
245AMS G NC=6.37E-5 9$OC=1.593E-5 22$PC=2.98E-6 4$QC=1.772E-7 25
245AM G 799.87 10 9.3 10[E2] 0.0201528
245AM2 G %IG=1.64 28
245AMS G KC=0.01416 20$LC=0.00445 6$MC=0.001139 16
245AMS G NC=0.000312 4$OC=7.71E-5 11$PC=1.400E-5 20$QC=5.86E-7 8
245AM G 817.04 10 5.0 5 [E1] 0.00599 8
245AM2 G %IG=0.88 15
245AMS G KC=0.00485 7$LC=0.000861 12$MC=0.0002063 29
245AMS G NC=5.60E-5 8$OC=1.401E-5 20$PC=2.63E-6 4$QC=1.575E-7 22
245AM G 840.56 10 7.6 8
245AM2 G %IG=1.34 23
245AM G 859.53 15 3.0 3 [E1] 0.00548 8
245AM2 G %IG=0.53 9
245AMS G KC=0.00444 6$LC=0.000784 11$MC=0.0001878 26
245AMS G NC=5.10E-5 7$OC=1.276E-5 18$PC=2.399E-6 34$QC=1.446E-7 20
245AM G 868.8 4 0.7 2
245AM2 G %IG=0.12 4
245AM G 887.14 @ ?
245AM L 920.97 7(9/2+,11/2+)
245AM B 2.2 4 7.15 10
245AMS B EAV=100.4 44
245AM G 357.90 20 0.37 10
245AM2 G %IG=0.065 20
245AM G 445.34 10 1.8 3 [M1] 0.442 6
245AM2 G %IG=0.32 7
245AMS G NC=0.00464 6$OC=0.001167 16$PC=0.0002231 31$QC=1.414E-5 20
245AMS G KC=0.349 5$LC=0.0697 10$MC=0.01696 24
245AM G 525.08 15 1.6 2 [M1] 0.283 4
245AM2 G %IG=0.28 5
245AMS G KC=0.2237 31$LC=0.0445 6$MC=0.01082 15
245AMS G NC=0.00296 4$OC=0.000744 10$PC=0.0001423 20$QC=9.02E-6 13
245AM G 593.7 6 0.2 1
245AM2 G %IG=0.035 18
245AM G 730.40 20 1.1 2 [E1] 0.0073210
245AM2 G %IG=0.19 4
245AMS G KC=0.00592 8$LC=0.001061 15$MC=0.000255 4
245AMS G NC=6.92E-5 10$OC=1.728E-5 24$PC=3.23E-6 5$QC=1.909E-7 27
245AM G 786.54 15 2.2 3
245AM2 G %IG=0.39 7
245AM G 796.37 17 1.5 4 [E1] 0.00627 9
245AM2 G %IG=0.26 8
245AMS G KC=0.00508 7$LC=0.000903 13$MC=0.0002164 30
245AMS G NC=5.88E-5 8$OC=1.470E-5 21$PC=2.76E-6 4$QC=1.645E-7 23
245AM G 833.14 20 3.1 LE &
245AM2 G %IG=0.55 7
245AM G 874.16 20 0.8 2
245AM2 G %IG=0.14 4
245AM G 901.9 8 0.30 15
245AM2 G %IG=0.053 27
245AM L 957.534 16(9/2)+
245AM B 8.3 13 6.42 10
245AMS B EAV=89.2 43
245AM G 481.9 10 0.08 4 [M1] 0.357 5
245AM2 G %IG=0.014 7
245AMS G KC=0.282 4$LC=0.0562 8$MC=0.01367 21
245AMS G NC=0.00373 6$OC=0.000940 14$PC=0.0001798 27$QC=1.140E-5 17
245AM G 560.134 49 @ ?
245AMF G FL=395.873
245AM cG $Poor fit, calculated final level=397.40 keV {I6}
245AM G 630.102 14 16 2 M1 0.1730 24 @
245AM2 G %IG=2.8 5
245AM2 G FLAG=B
245AMS G KC=0.1370 19$LC=0.0271 4$MC=0.00659 9
245AMS G NC=0.001801 25$OC=0.000453 6$PC=8.67E-5 12$QC=5.50E-6 8
245AM cG $ce(K)=0.14 {I6}, ce(L)=0.04 {I2}, K/L=3.5 {I22}.
245AM G 766.59 15 2.1 3 [E1] 0.00671 9
245AM2 G %IG=0.37 7
245AMS G KC=0.00543 8$LC=0.000969 14$MC=0.0002324 33
245AMS G NC=6.31E-5 9$OC=1.578E-5 22$PC=2.96E-6 4$QC=1.756E-7 25
245AM G 824 0.2 LT ?
245AM2 G %IG=0.035 5
245AM G 833.14 20 3.1 LE &
245AM2 G %IG=0.55 7
245AM cG I|g=3.1 {I3} was measured.
245AM G 870.5 5 0.4 2
245AM2 G %IG=0.07 4
245AM G 887.14 15 4.2 5 @
245AM2 G %IG=0.74 13
245AM G 910.46 7 8.2 8
245AM2 G %IG=1.44 24
245AM G 938.4 2 6.0 10
245AM2 G %IG=1.06 23
245AM G 957.59 15 5.8 6
245AM2 G %IG=1.02 17
245AM L 987.52 4 (7/2+,9/2+)
245AM B 2.9 5 6.74 11
245AMS B EAV=80.2 42
245AM G 511.5 10 0.2 1
245AM2 G %IG=0.035 18
245AM G 591.6 3 1.0 2
245AM2 G %IG=0.18 4
245AM G 660.082 42 5.0 7 B
245AM2 G %IG=0.88 17
245AM G 917.0 5 0.5 2
245AM2 G %IG=0.09 4
245AM G 941.0 101.5 10
245AM2 G %IG=0.26 18
245AM G 968.5 7 0.2 1
245AM2 G %IG=0.035 18
245AM G 987.60 107.8 8
245AM2 G %IG=1.37 23
245AM L 1024.23 14(7/2+,9/2-)
245AM B 1.1 3 6.98 15
245AMS B EAV=69.3 42
245AM G 549.2 6 0.2 1
245AM2 G %IG=0.035 18
245AM G 630.102 @ ?
245AMF G FL=395.873
245AM cG $Poor fit, calculated final level=394.13 keV {I14}
245AM G 696.8 4 0.5 2
245AM2 G %IG=0.09 4
245AM G 899.3 100.2 1
245AM2 G %IG=0.035 18
245AM G 953 2 0.10 5
245AM2 G %IG=0.018 9
245AM G 977.2 2 2.3 10 @
245AM2 G %IG=0.40 18
245AM G 996.0 3 1.2 2
245AM2 G %IG=0.21 5
245AM G 1005.1 3 1.6 6
245AM2 G %IG=0.28 11
245AM L 1065.23 9
245AM B 1.7 3 6.55 12
245AMS B EAV=57.4 41
245AM G 669.28 102.0 3
245AM2 G %IG=0.35 7
245AM G 737.96 20 1.3 3
245AM2 G %IG=0.23 6
245AM G 930.3 6 0.30 15
245AM2 G %IG=0.053 27
245AM G 977.2 @ ?
245AM G 1018.33 206.1 8
245AM2 G %IG=1.07 20
245AM L 1111.18 18
245AM B 0.66 14 6.63 15
245AMS B EAV=44.3 40
245AM G 1023.32 203.2 6
245AM2 G %IG=0.56 13
245AM G 1040.2 120.04 2
245AM2 G %IG=0.007 4
245AM G 1083.9 5 0.20 4
245AM2 G %IG=0.035 9
245AM G 1111.9 5 0.32 4
245AM2 G %IG=0.056 10
245AM L 1185.6 3
245AM B 0.12 2 6.58 23
245AMS B EAV=23.9 38
245AM G 1051.3 8 0.03 1
245AM2 G %IG=0.0053 19
245AM G 1097.9 7 0.10 3
245AM2 G %IG=0.018 6
245AM G 1138.5 5 0.25 4
245AM2 G %IG=0.044 9
245AM G 1166.3 5 0.30 4
245AM2 G %IG=0.053 10