241AM 245BK A DECAY 1975BA25,1974PO08 15NDS 201512
241AM H TYP=FUL$AUT=C.D. NESARAJA$CIT=NDS 130, 183 (2015)$CUT=30-Sep-2015$
241AM c 1975Ba25:{+245}Bk produced from {+243}Am(|a,2n) reaction was
241AM2c radio-chemically separated and chemically prepared for |a measurements
241AM3c using a magnetic |a spectrograph
241AM c 1974Po08:|a particles measured with Au-Si surface barrier detector
241AM c 1966Ah02: |g rays following the |a decay was investigated by
241AM2c |g singles and |g|a-coin using Ge(Li) detectors
241AM c 1956Ch77: Measured |g|a-coin, from decay of {+245}Bk . Measured
241AM2c E|g, I|g, E|a and I|a.
241AM c 1951Hu39: measured properties of {+245}Bk and reported half-life,
241AM2c |a-decay energies and its intensities and branching ratio
241AM cA E$From 1975Ba25. The resolution of this work is about 4 keV.
241AM2cA The authors do not quote uncertainties; however, based on other
241AM3cA work of the first author, and given an uncertainty of 0.5 keV in
241AM4cA the calibration peak, the evaluator has assigned an uncertainty
241AM5cA of 2 keV. 1974Po08 have also reported E|a values. The resolution
241AM6cA of their detector system is about 20-25 keV. Energies of
241AM7cA 1974Po08 are given in comments. Their values
241AM8cA have been increased by the evaluator using the recommendations
241AM9cA by 1991Ry01 to correct for changes in the calibration energies used
241AMAcA by the authors (1974Po08). The correction increased from +3 keV to
241AMBcA +6 keV for 5.808|a up to the 6.348 |a
241AMCcA Others: 1951Hu39, 1956Ch77, 1956Ma32
241AM cA IA$The intensities per 100 |a decays are from 1974Po08. 1975Ba25
241AM2cA report intensities without uncertainties. Values of these authors
241AM3cA are given in comments
241AM cA HF$r{-0}({+241}Am)=1.4966 {I8} average of r{-0}({+240}Pu)=1.4979 {I7}
241AM2cA and r{-0}({+242}Cm)=1.4953 {I9}, is used in the calculations as given
241AM3cA in 1998Ak04
241AM cL E$From Adopted Levels except as noted
241AM cL J$From Adopted Levels
245BK P 0.0 3/2- 4.95 D 3 6454.5 14
245BK cP J,T$From Adopted Levels in {+245}Bk
245BK cP QP$From 2012Wa38
241AM N 1.0 1.0 0.0012 1
241AM PN 2
241AM cG $For |a|g coin data see 1966Ah02, 1956Ch77.
241AM cG E$From 1966Ah02, except where noted otherwise
241AM cG RI$From 1966Ah02, except where noted otherwise. Intensities are
241AM2cG per 100 |a decays. Other: 1956Ch77.
241AM cG M$From adopted gammas. Values in square brackets are based on the
241AM2cG level scheme
241AM cG E(S)$From {+241}Cm |e decay. Not observed in {+245}Bk |a decay
241AM cG E(A),RI(A)$From 1976Ah03
241AM cG M(B)$Anomalous E1 transition. See {+241}Cm |e decay
241AM DG CC$FROM BrIcc v2.3a (30-Jun-2013) 2008Ki07, "Frozen Orbitals" appr.
241AM CG MR$IF NO VALUE GIVEN IT WAS ASSUMED MR=1.00 FOR E2/M1,
241AM2CG MR=1.00 FOR E3/M2 AND MR=0.10 FOR THE OTHER MULTIPOLARITIES
241AM L 0.0 5/2-
241AM A 6348 2 15.5 5 593 54
241AM cA E$E|a=6354 {I5} (1974Po08). I|a=15.1 (1975Ba25)
241AM L 41.176 37/2-
241AM A 6308 2 15.0 5 393 36
241AM cA E$E|a=6315 {I5} (1974Po08). I|a=12.2 (1975Ba25)
241AM G 41.176 3 M1+E2 0.486 23 295 17
241AMS G LC=216 13$MC=59 4
241AMS G NC=16.2 10$OC=3.90 23$PC=0.64 4$QC=0.01151 20
241AM cG E$From Adopted Gammas.
241AM L 93.70 109/2-
241AM A 6258 2 1.5 1 2.21E3 24
241AM cA E$E|a=6263 {I5} (1974Po08). I|a<2.7 (1975Ba25)
241AM L 157.50 18 11/2-
241AM A 6193 2 1.2 1 1.36E3 17
241AM cA E$E|a=6198 {I5} (1974Po08). I|a not given by 1975Ba25. Peak obscured
241AM2cA by an impurity line
241AM L 205.883 10 5/2+
241AM A 6147 2 18.3 5 52 5
241AM cA E$E|a=6150 {I4} (1974Po08). I|a=20.7 (1975Ba25)
241AM G 165.5 5 7.0 15[E1] 0.162 3
241AMS G KC=0.1243 20$LC=0.0282 5$MC=0.00692 11
241AMS G NC=0.00187 3$OC=0.000458 8$PC=8.00E-5 13$QC=3.48E-6 6
241AM G 207.4 5 33 5 E1 0.0964 15
241AMS G KC=0.0749 12$LC=0.01617 25$MC=0.00395 6
241AMS G NC=0.001071 17$OC=0.000263 4$PC=4.66E-5 7$QC=2.16E-6 4
241AM cG E$The adopted E|g is 205.879 {I13} from |e decay
241AM L 235.2 5 7/2+
241AM A 6118 2 10.0 5 68 7
241AM cA E$E|a=6122 {I4} (1974Po08). No I|a is reported by 1975Ba25 since the
241AM2cA peak is obscured by the calibration line. The value of 15.2 {I5}
241AM3cA reported by 1974Po08 is assumed by the evaluator to include
241AM4cA I|a(6113|a), a peak reported only by 1975Ba25, and has been lowered to
241AM5cA 10.0 to correct for the presence of this close-lying 6113|a
241AM G 195 1 1 AP[E1] 0.1110 21
241AMS G KC=0.0860 16$LC=0.0188 4$MC=0.00460 9
241AMS G NC=0.001246 24$OC=0.000306 6$PC=5.40E-5 10$QC=2.46E-6 5
241AM L 239
241AM cL E$From 1975Ba25
241AM A 6113 5.2 125
241AM cA E,IA$From 1975Ba25. Not observed by 1974Po08
241AM L 270
241AM cL E$From 1975Ba25
241AM A 6085 2 6.2 3 74 8
241AM cA E$E|a=6085 {I3} (1974Po08). I|a=6.7 (1975Ba25)
241AM L 273.2 5 9/2+
241AM A 6079
241AM cA E$From 1975Ba25. Not reported by 1974Po08. No I|a is given since
241AM2cA the peak is obscured by an impurity
241AM L 319.8 10 11/2+
241AM A 6035 2 0.55 8 466 79
241AM cA E$E|a=6035 {I4} (1974Po08). I|a<4.6 (1975Ba25)
241AM L 381.1 1 13/2+ ?
241AM A 5983 3 0.08 2 1.56E3 42 ?
241AM cA E,IA$From 1974Po08. Not reported by 1975Ba25
241AM L 459 ?
241AM cL E$From 1975Ba25
241AM A 5897 ?
241AM cA E$From 1975Ba25. Not reported by 1974Po08. No I|a is given since
241AM2cA the peak is obscured by an impurity
241AM L 471.810 9 3/2-
241AM A 5886 2 21.5 5 1.96 17
241AM cA E$E|a=5888 {I3} (1974Po08). I|a=25 (1975Ba25)
241AM G 265.922 12 0.12 3 [E1] 0.0552 S
241AM2 G FLAG=BS$
241AMS G KC=0.0433 6$LC=0.00894 13$MC=0.00218 3
241AMS G NC=0.000590 9$OC=0.0001456 21$PC=2.62E-5 4$QC=1.284E-6 18
241AM cG RI$From I|g/I|g(472|g)=0.0056 {I6} in |e decay
241AM cG TI$From I(|g+ce)/I|g=6.6 {I6} in |e decay
241AM G 430.634 20 1.25 25E2 0.0805 S
241AM2 G FLAG=S$
241AMS G KC=0.0416 6$LC=0.0285 4$MC=0.00767 11
241AMS G NC=0.00211 3$OC=0.000514 8$PC=8.88E-5 13$QC=2.08E-6 3
241AM cG RI$From I|g/I|g(472|g)=0.057 {I4} in |e decay
241AM G 471.8 3 22 4 [M1+E2] 0.22 1631 5
241AM2 G FLAG=AB$
241AMS G K/T=0.14 10$L/T=0.033 16$M/T=0.008 4
241AMS G N/T=0.0023 11$O/T=0.0006 3$P/T=0.00010 6$Q/T=6.E-6 5
241AMS G KC=0.17 14$LC=0.040 20$MC=0.010 5
241AMS G NC=0.0028 12$OC=0.0007 4$PC=0.00013 7$QC=7.E-6 6
241AM cG TI$From I|g and I(|g+ce)/I|g=1.208 {I86} in |e decay
241AM L 495
241AM cL E$From 1975Ba25
241AM A 5861 2 2.7 12
241AM cA E,IA$From 1975Ba25. See comment on 5852|a
241AM L 504.449 9 5/2-
241AM A 5852 2 1.4 20
241AM cA E,IA$From 1975Ba25. I|a|<3.7 (1975Ba25). 1974Po08 report I|a=4.1 {I2}
241AM2cA for E|a=5856 {I3}. The evaluator assumes that this peak is the
241AM3cA unresolved sum of the 5861 and 5852 peaks reported by 1975Ba25. This
241AM4cA assumption leads to I|a(5852|a)=1.4
241AM L 543 ?
241AM cL E$From 1975Ba25
241AM A 5814 ?
241AM cA E$From 1975Ba25. Not reported by 1974Po08. No I|a is given since
241AM2cA the peak is obscured by an impurity
241AM L 550.4 4 7/2-
241AM A 5796 0.9 1 17.9 25
241AM cA E,IA$E is from 1975Ba25. They report I|a<1.3. 1974Po08 report
241AM2cA I|a=0.9 {I1} for E|a=5811 {I3}. The evaluator assumes that the two
241AM3cA references are seeing the same |a transition