246AM 246PU B- DECAY 1971MU05 24NDS 202410
246AM H TYP=FUL$AUT=C.D. Nesaraja$CIT=NDS 198, 449 (2024)$CUT=31-Jul-2022$
246AM c 1971Mu05: {+246}Pu was obtained from fused cavity debris
246AM2c underground explosion and subsequently was chemically separated.
246AM3c The decay was measured using several Ge(Li) detectors along with
246AM4c the Livermore Compton-suppression system. Measured E|g, I|g
246AM c 1956Ho23: {+246}Pu was chemical separated. Measured |g, |g|g-coin,
246AM2c with two NaI(Tl) detectors and |b|g- coin with one NaI(Tl) and a
246AM3c trans-stilbene crystal detector. Measured T{-1/2}
246AM3c from decay curve. Deduced E|b from Fermi plots.
246AM c Others: 1991Po17,1965St10,1956Sm85 (same group as 1956Ho23)
246AM c
246AM cB IB$From intensity balance in the level scheme, except as noted.
246AM2cB 1956Ho23 deduced I|b(150)/I|b(330)=2.7 from Fermi plots of |b{+-}
246AM3cB spectrum in coincidence with the 179|g and 44|g
246AM cG E,RI$From 1971Mu05
246AM cB E,LOGFT$Calculated assuming X=0
246AM cG M$All multipolarities are provided in the Adopted Gammas
246AM cG M(A)$E1 assignment is based on intensity
246AM2cG balance considerations
246AM cL E$x=30 {I10}; calculated value for the energy difference of
246AM2cL configuration=((|p 5/2[642])+(|n 9/2[734])) and configuration=((|p
246AM3cL 5/2[642])-(|n 9/2[734])), the expected configurations of {+246}Am (7-)
246AM4cL g.s. and {+246}Am 2(-) isomeric state (1984So03), respectively.
246AM cL E$From least squares fit to E|g data by the evaluator
246AM cL J$From Adopted Levels
246AM DG CC$FROM BrIcc v2.3e (17-Jun-2020) 2008Ki07, "Frozen Orbitals" appr.
246PU P 0.0 0+ 10.84 D 2 401 SY
246PU cP QP$401 {I14} (2021Wa16)(syst,2021Wa16)
246AM N 0.254 10 1.00
246AM PN 3
246AM cN NR$From |SI(|g+ce)(to 0+X and 16.2+X levels)=100-I|b to 0.0+X.
246AM2cN with I|b to 0.0+X= 1 {I1} used in the calculation. The
246AM3cN uncertainty does not include possible error due to |b{+-} feeding of
246AM4cN the 16.22+x keV level
246AM L 0.0+X (2-) 25.0 M 2 M
246AM DL E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT
246AM cL T$From Adopted Levels
246AM B 2 LT 8.6 GT 1U
246AMS B EAV=119.0 42
246AM cB IB$Deduced by evaluator from log| {If{+1u}t}|>8.5. 1 {I1}
246AM2cB used in the calculation for the purpose of determining the gamma ray
246AM3cB intensity
246AM L 16.21+X 5 (0-,1-,2-)
246AM B ?
246AM G 16.22 S
246AM L 43.806+X 15 (1+) 4.3 NS 3
246AM DL E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT
246AM cL T$From |g|g(t) (1965St10). This value is given in the Adopted Levels
246AM B 9 5 7.94 25
246AMS B EAV=100.4 44
246AM cB E$330 keV {I30} from Fermi plot (1956Ho23)
246AM cB IB$|?10% (1965St10)
246AM G 27.58 2 14.1 15(E1) 3.90 6 A
246AMS G LC=2.89 4$MC=0.759 11
246AMS G NC=0.2030 29$OC=0.0461 7$PC=0.00608 9$QC=0.0001418 20
246AM2 G %IG=3.6 4
246AM G 43.81 2 100 5 (E1) 1.175 17 A
246AMS G LC=0.877 12$MC=0.2220 31
246AMS G NC=0.0596 8$OC=0.01394 20$PC=0.002061 29$QC=5.75E-5 8
246AM2 G %IG=25.4 16
246AM L 74.331+X 27
246AM DL E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT
246AM L 223.742+X 17 (1+)
246AM B 89 5 5.99 12
246AMS B EAV=47.2 40
246AM cB E$150 keV {I10} from Fermi plot (1956Ho23)
246AM cB IB$|?90% (1965St10)
246AM G 149.42 3 0.23 19
246AM2 G %IG=0.06 5
246AM G 179.94 2 38.8 19(M1) 5.46 8
246AMS G KC=4.30 6$LC=0.872 12$MC=0.2127 30
246AMS G NC=0.0581 8$OC=0.01464 20$PC=0.00280 4$QC=0.0001780 25
246AM2 G %IG=9.9 6
246AM cG M$From |a(K)exp|?6 (1956Ho23), K/L|=4.8 (1956Ho23 from magnetic
246AM2cG spectrometer data, previously |?5 in 1956Sm85).
246AM cG $I|g(180)/I|g(224)=0.46 {I7} (1991Po17)
246AM G 223.75 2 94 7 (E1) 0.0811 11 A
246AMS G KC=0.0633 9$LC=0.01346 19$MC=0.00329 5
246AMS G NC=0.000891 12$OC=0.0002191 31$PC=3.90E-5 5$QC=1.837E-6 26
246AM2 G %IG=23.9 20
246AM L 232.761+X 21
246AM B 0.32 LE 8.4 GE
246AMS B EAV=44.7 40
246AM G 158.42 3 0.14 3 [E1,M1] 4 4
246AMS G KC=3.1 30$LC=0.6 6$MC=0.16 15
246AMS G NC=0.04 4$OC=0.011 10$PC=0.0021 20$QC=1.3E-4 13
246AM2 G %IG=0.036 8
246AM G 189.00 4 0.19 3
246AM2 G %IG=0.048 8
246AM G 216.55 4 0.45 7
246AM2 G %IG=0.114 18
246AM G 232.75 3 0.32 5
246AM2 G %IG=0.081 13
246AM L 299.370+X 210,1
246AM B 0.71 5 7.34 20
246AMS B EAV=26.4 38
246AM G 66.60 2 1.02 7
246AM2 G %IG=0.259 21
246AM G 75.64 2 0.72 10
246AM2 G %IG=0.183 27
246AM G 255.54 3 0.92 7
246AM2 G %IG=0.234 20
246AM G 299.34 6 0.12 3
246AM2 G %IG=0.031 8