233U 233NP EC DECAY (36.2 M) 1973WE08 20NDS 202012
233U H TYP=FUL$AUT=B. Singh, J. K. Tuli, E. Browne$CIT=NDS 170, 499 (2020)$
233U 2 H CUT=8-Oct-2020$
233U c 1973We08: {+233}Np source was prepared in {+233}U(d,2n),E=18 MeV
233U 2c reaction using Karlsruhe Isochronous cyclotron. Measured E|g, I|g,
233U 3c half-life of decay of {+233}Np using Ge(Li) detectors.
233U c {+233}Np |e decay scheme is basically from 1973We08.
233U 2c Transitions that were not observed by 1973We08, but were seen in
233U 3c {+233}Pa |b{+-} and {+237}Pu |a decays were added by evaluators for
233U 4c the sake of completeness. The 205.3-keV |g was placed by 1973We08 to
233U 5c deexcite the 298.4-keV level. This |g was not seen in {+233}Pa |b{+-}
233U 6c decay studies by 1973Va33 in coincidence spectrum with 42-keV |g.
233U cG E,RI$From 1973We08.
233U cG E(a),RI(b)$From the Adopted Levels, Gammas dataset.
233U 2cG This |g is not observed in {+233}Np |e decay
233U cG M,MR$From the Adopted dataset. Multipolarities in square brackets
233U 2cG are assumed from |DJ|p values. The |DJ=1 transitions from the
233U 3cG 5/2[622] band members to the 5/2[633] band members are assumed
233U 4cG as M1, as opposed to M1+E2, in analogy to those transitions in
233U 5cG {+233}Th and {+235}U.
233U cG CC(p)$From {+233}U |b{+-} decay, where measured conversion
233U 2cG coefficients are from 1989Br24, who found this transition to
233U 3cG have penetration effects.
233U cL E$From least-squares fit to E|g data
233U cL J,T$From the Adopted Levels
233U cL E(A)$Member of 5/2[633] band.
233U cL E(D)$Member of 3/2[631] band.
233U cL E(E)$Member of 5/2[752] band.
233U cL E(G)$Member of 5/2[622] band.
233NP P 0.0 (5/2+) 36.2 M 1 1030 50
233NP cP J,T$From {+233}Np Adopted Levels
233NP cP QP$From 2017Wa10
233U N 0.007 AP 1.0 AP 1
233U cN NR$Assumption of |e branching of |?97% to the 5/2[633] g.s. band,
233U 2cN as estimated by 1973We08 based on K x-ray intensity,
233U 2cN yields |?0.007 as the normalization factor to convert relative photon
233U 3cN intensities to absolute intensities.
233U cN BR$%|e|?100, %|a|<0.001
233U PN 3
233U G 205.3 4 3.3 3
233U G 242.5 4 12 1
233U G 393.0 4 2.5 2
233U G 425.6 4 8.3 5
233U G 644.4 5 1.1 1
233U G 665.9 4 2.4 2
233U L 0.0 5/2+ 1.592E+5 Y 2 A
233U E 97 AP 5.2 AP
233U cE TI$the |e branching to ground-state band was estimated by 1973We08 as
233U 2cE 97% from K x-ray intensity, but the x-ray intensity is not given by
233U 3cE the authors.
233U S E CK= 0.7571 $CL= 0.1795 $CM+= 0.06346
233U L 40.351 10 7/2+ A
233U E
233U G 40.351 10 M1+E2 0.93 11 5.1E2 6 a S
233U S G LC=3.7E2 5$MC=102 13
233U S G NC=28 4$OC=6.4 8$PC=1.04 12$QC=0.0087 5
233U L 92.11 4 9/2+ A
233U G 51.5 5 a S
233U G 92.1 5 a S
233U L 298.815 13 (5/2-) E
233U E 0.6 AP 7.1 AP
233U S E CK= 0.7422 $CL= 0.1899 $CM+= 0.06792
233U G 258.5 5 14 1 [E1] 0.0547
233U cG E$258.45 {I2} in the Adopted dataset
233U S G KC=0.0433 7$LC=0.00857 13$MC=0.00207 3
233U S G NC=0.000553 9$OC=0.0001317 20$PC=2.41E-5 4$QC=1.496E-6 22
233U G 298.81 2 72 4 [E1] 0.0395
233U F G FLAG=a
233U S G KC=0.0314 5$LC=0.00608 9$MC=0.001466 21
233U S G NC=0.000392 6$OC=9.36E-5 14$PC=1.725E-5 25$QC=1.104E-6 16
233U cG E$299.1 {I3} for the unresolved doublet in |e decay
233U cG RI$84 {I4} was observed for the doublet at 299 keV. The two components
233U 2cG are placed from 299 and 340 levels. Intensity divided by evaluators
233U 3cG based on the following branching ratios in the Adopted dataset:
233U 4cG 340 level: I|g(300)/I|g(340)=1.474 {I21}, which give I|g=11.6 {I6}
233U 5cG for placement from 340 level. Remaining intensity (84 {I4}-11.6 {I6})
233U 6cG of 72 {I4} should belong to 299|g from 299 level, which is consistent
233U 7cG with 63 {I7} obtained from I|g(299)/I|g(258)=4.48 {I36}, but somewhat
233U 8cG more precise.
233U L 311.911 12 3/2+ D
233U E 0.6 AP 7.1 AP
233U S E CK= 0.7412 $CL= 0.1906 $CM+= 0.06821
233U G 271.556 10 0.84 1 E2 0.258 a S
233U S G KC=0.0904 13$LC=0.1227 18$MC=0.0334 5
233U S G NC=0.00906 13$OC=0.00210 3$PC=0.000357 5$QC=5.77E-6 8
233U F G FLAG=b
233U G 312.1 3 100 M1+E2 -0.10 1 0.80 3 p
233U cG E$311.901 {I10} in the Adopted dataset
233U L 320.69 7 7/2- E
233U E 0.2 AP 7.6 AP
233U S E CK= 0.7406 $CL= 0.1910 $CM+= 0.06841 $
233U G 228.57 5 5.9 10 [E1] 0.0723 a S
233U S G KC=0.0571 8$LC=0.01151 17$MC=0.00279 4
233U S G NC=0.000744 11$OC=0.000177 3$PC=3.22E-5 5$QC=1.94E-6 3
233U F G FLAG=b
233U G 280.5 5 19 1 [E1] 0.0455
233U S G KC=0.0362 6$LC=0.00706 11$MC=0.001704 25
233U S G NC=0.000456 7$OC=0.0001087 16$PC=2.00E-5 3$QC=1.261E-6 19
233U cG E$280.57 {I5} in the Adopted dataset
233U G 321.0 3 9.9 7 [E1] 0.0338
233U S G KC=0.0270 4$LC=0.00517 8$MC=0.001245 18
233U S G NC=0.000333 5$OC=7.96E-5 12$PC=1.471E-5 21$QC=9.55E-7 14
233U cG E$320.73 {I10} in the Adopted dataset
233U L 340.476 12 5/2+ D
233U E 0.4 AP 7.3 AP
233U S E CK= 0.7390 $CL= 0.1921 $CM+= 0.06888 $
233U G 28.562 11 0.130 10 M1+E2 0.16 2 3.2E2 4 a S
233U S G LC=2.4E2 3$MC=60 7
233U S G NC=16.3 19$OC=3.9 5$PC=0.69 7$QC=0.0336 5
233U F G FLAG=b
233U G 41.660 10 0.023 3 [E1] 1.255 a S
233U S G LC=0.940 14$MC=0.236 4
233U S G NC=0.0621 9$OC=0.01399 20$PC=0.00219 3$QC=7.52E-5 11
233U F G FLAG=b
233U G 248.37 4 0.107 6 [E2] 0.346 6 a S
233U S G KC=0.1064 16$LC=0.175 3$MC=0.0479 8
233U S G NC=0.01298 22$OC=0.00301 5$PC=0.000508 9$QC=7.16E-6 11
233U F G FLAG=b
233U G 300.128 10 11.6 6 M1+E2 -0.08 2 0.87 3 p
233U F G FLAG=a
233U cG RI$see comment for 299.1|g from the 299 level for division
233U 2cG of the intensity of the 299|g doublet.
233U cG E$299.1 {I3} for the unresolved doublet in |e decay
233U G 340.7 4 7.9 4 M1+E2 -0.23 5 0.62 3 p
233U cG E$340.477 {I10} in the Adopted dataset
233U L 546.53 18 (5/2+) G
233U E 1.1 AP 6.5 AP
233U S E CK= 0.7141 $CL= 0.2095 $CM+= 0.07639
233U G 226.0 5 5.1 4 [E1] 0.0742
233U S G KC=0.0586 9$LC=0.01183 18$MC=0.00286 5
233U S G NC=0.000765 12$OC=0.000182 3$PC=3.31E-5 5$QC=1.99E-6 3
233U G 234.3 3 22 1 [M1] 1.99
233U S G KC=1.583 23$LC=0.307 5$MC=0.0742 11
233U S G NC=0.0200 3$OC=0.00486 7$PC=0.000938 14$QC=7.48E-5 11
233U G 247.6 4 5.7 7 [E1] 0.0603
233U S G KC=0.0477 7$LC=0.00949 14$MC=0.00229 4
233U S G NC=0.000613 9$OC=0.0001460 22$PC=2.67E-5 4$QC=1.638E-6 24
233U G 506.5 5 22 3 [M1] 0.240
233U S G KC=0.192 3$LC=0.0366 6$MC=0.00884 13
233U S G NC=0.00238 4$OC=0.000579 9$PC=0.0001116 16$QC=8.90E-6 13
233U G 546.9 4 40 2 [M1] 0.196
233U S G KC=0.1561 22$LC=0.0298 5$MC=0.00718 11
233U S G NC=0.00193 3$OC=0.000470 7$PC=9.06E-5 13$QC=7.23E-6 11
233U L 597.23 23 (7/2+) G
233U E 0.2 AP 7.1 AP
233U S E CK= 0.7039 $CL= 0.2166 $CM+= 0.07949
233U G 256.0 5 6.0 4 [M1] 1.555
233U S G KC=1.237 19$LC=0.240 4$MC=0.0579 9
233U S G NC=0.01560 24$OC=0.00379 6$PC=0.000732 11$QC=5.83E-5 9
233U G 504.8 5 5.9 9 [M1] 0.242
233U S G KC=0.194 3$LC=0.0370 6$MC=0.00892 13
233U S G NC=0.00240 4$OC=0.000584 9$PC=0.0001126 16$QC=8.98E-6 13
233U G 557.1 4 4.0 4 [M1] 0.186
233U S G KC=0.1486 21$LC=0.0283 4$MC=0.00683 10
233U S G NC=0.00184 3$OC=0.000447 7$PC=8.62E-5 13$QC=6.88E-6 10
233U G 597.7 4 3.8 3 [M1] 0.1541
233U S G KC=0.1231 18$LC=0.0234 4$MC=0.00564 8
233U S G NC=0.001520 22$OC=0.000370 6$PC=7.13E-5 10$QC=5.69E-6 8