222RA 222FR B- DECAY (14.2 M) 1992RU01 23NDS 202310
222RA H TYP=FUL$AUT=Balraj Singh, M.S. Basunia, Jun Chen et al.,$
222RA2 H CIT=NDS 192, 315 (2023)$CUT=25-Sep-2023$
222RA c Dataset by Balraj Singh, Jun Chen, and IAEA-ICTP-workshop
222RA2c participants: S. Leblond and V. Vallet.
222RA c BetaShape code (2019Mo35) used for log| {Ift} values and E|b(average).
222RA c 1992Ru01: {+222}Fr source was produced in a spallation reaction by
222RA2c bombarding thorium carbide powder with a 280 MeV {+3}He beam from
222RA3c the IPN synchro-cyclotron in Orsay. Fragments were separated by the
222RA4c ISOCELE II on-line mass separator. |b particles were detected with
222RA5c a 4|p plastic detector and |g rays were detected with two Ge(Li)
222RA6c detectors (planar and coaxial). Measured E|g, I|g, |b|g-coin,
222RA7c |b|g|g-coin. Deduced levels, J, |p, |b-decay branching ratios,
222RA8c log {Ift}.
222RA c 1985Go05: {+222}Fr source was produced by separating a francium
222RA2c fraction. |g rays were detected with Ge(Li) detectors. Measured E|g,
222RA3c I|g. Deduced levels, J, |p, |b-decay branching ratios, log {Ift}.
222RA c The {+222}Fr |b{+-} decay scheme is presented as constructed by
222RA2c 1992Ru01 based on their |b-gated |g|g-coincidence measurements. The
222RA3c decay scheme was built upon the previously known levels which were
222RA4c established up to the 1170-keV level.
222RA cB $See 1975We23 for singles |b spectrum measurements. The spectrum
222RA2cB shows a flat tail of low intensity and extended to much higher
222RA3cB energy than the main portion of the data. After subtraction of this
222RA4cB tail (which was assumed due to |a particles from {+222}Ra),
222RA5cB an F-K analysis gives E|b(max)=1780 {I20} for the endpoint which does
222RA6cB not agree with the E|b{+-} (to 111.12 level).
222RA cB $E(average |b energies) from BetaShape code (2019Mo35, 2015Mo10).
222RA cB IB$From intensity balance at each level.
222RA cB LOGFT$From BetaShape code (2019Mo35, 2015Mo10).
222RA cG E(A)$Poor fit; uncertainty multiplied by a factor in the fitting
222RA cG E,RI$From 1992Ru01. Quoted I|g values are relative photon intensities.
222RA cG $Measured Ra x-ray intensities:
222RA cG $E(K|a x ray): 88.5, I(x ray)/I(206|g)=0.143 {I20} (1985Go05).
222RA cG $E(K|b x ray): 100.0, I(x ray)/I(206|g)=0.0275 {I35} (1985Go05).
222RA cG M$From the Adopted Gammas.
222RA cL E$From a least-squares fit to |g-ray energies. Nine E|g values
222RA2cL fit poorly, as detailed in comments for relevant |g rays.
222RA cL J,T$From the Adopted Levels
222FR P 0.0 2- 14.2 M 3 2058 9
222FR cP J,T$From {+222}Fr Adopted Levels
222FR cP QP$From 2021Wa16
222RA N 0.493 54 1.0
222RA PN 3
222RA cN NR$Relative photon intensities were normalized by 1992Ru01 to
222RA2cN I|g(324.2|g in {+218}Rn)=2.77 {I8} per 100 {+222}Ra |a decays. This
222RA3cN value was measured absolutely by 1969Pe17, and it has been adopted by
222RA4cN the evaluators. 1992Ru01 did not explicitly provide their measured
222RA5cN I|g(324|g) relative to the I|g values given here but gave |g+ce total
222RA6cN intensities in the decay scheme in Fig. 4, where %I|g(206|g+ce)=53.4,
222RA7cN after correction of the internal conversion coefficient=0.841
222RA8cN (estimated by the evaluators using BrIcc) from 1978Ro21 used by
222RA9cN 1992Ru01, gives %I|g(206|g)=49.3% and thus the normalization
222RAacN factor=0.493 {I54}, with the total uncertainty from that in relative
222RAbcN I|g(206|g)=100 {I10}, an estimation of 5% uncertainty for the
222RAccN determination of the total conversion coefficient in 1978Ro21, and
222RAdcN uncertainty in I|g(324.2|g)=2.77 {I8}. Others: an assumption of any |b
222RAecN feeding to the g.s. to be negligible yields I|g normalization=0.51
222RAfcN {I6}; by requiring that the log| {If{+1u}t} for a |b feeding to the
222RAgcN g.s. is >8.5, I|b is deduced as <7%. I|b(g.s.)=3% {I3} yields I|g
222RAhcN normalization=0.50 {I6}; I|g(324|g)/I|g(206|g)=5.7 {I6}/100
222RAicN from 1985Go05, %I|g(324|g)=2.77 {I8} from 1969Pe17 and relative
222RAjcN I|g(206)=100 {I10} from 1992Ru01, yield I|g normalization=0.486 {I72}
222RA G 50.14 2 0.030 5
222RA2 G %IG=0.0148 30
222RA G 218.66 4 0.12 1
222RA2 G %IG=0.059 8
222RA G 221.36 2 0.52 5
222RA2 G %IG=0.256 37
222RA G 224.10 2 0.19 2
222RA2 G %IG=0.094 14
222RA G 455.37 7 0.018 4
222RA2 G %IG=0.0089 22
222RA G 831.58 5 0.036 5
222RA2 G %IG=0.0178 32
222RA G 846.72 8 0.070 14
222RA2 G %IG=0.035 8
222RA G 1156.75 9 0.044 9
222RA2 G %IG=0.0217 50
222RA G 1295.6 1 0.028 5
222RA2 G %IG=0.0138 29
222RA G 1502.3 1 0.050 9
222RA2 G %IG=0.0247 52
222RA L 0.0 0+ 33.6 S 4
222RA B 3 3 8.7 GE 1U?
222RAS B EAV=699.2 35
222RA L 111.117 8 2+ 0.52 NS 4
222RA B 36 12 6.78 +19-14
222RAS B EAV=699.2 37
222RA G 111.11 1 26.2 26 E2 6.13 9
222RAS G KC=0.293 4$LC=4.29 6$MC=1.168 16
222RAS G NC=0.308 4$OC=0.0656 9$PC=0.00952 13$QC=3.90E-5 5
222RA2 G %IG=12.9 19
222RA cG $Other: E|g=111.09 {I5}, I|g=24.5 {I25} (1985Go05)
222RA L 242.109 8 1- 9.5 PS +21-16
222RA B 1.7 3 7.99 10
222RAS B EAV=645.5 37
222RA G 130.98 1 1.25 12(E1) 0.2502 35
222RAS G KC=0.1959 27$LC=0.0412 6$MC=0.00990 14
222RAS G NC=0.00258 4$OC=0.000566 8$PC=9.03E-5 13$QC=4.85E-6 7
222RA2 G %IG=0.62 9
222RA cG $Other: E|g=131.0 {I4}, I|g=1.3 {I2} (1985Go05)
222RA G 242.11 1 3.93 40E1 0.0575 8
222RAS G KC=0.0461 6$LC=0.00866 12$MC=0.002069 29
222RAS G NC=0.000541 8$OC=0.0001205 17$PC=1.991E-5 28$QC=1.236E-6 17
222RA2 G %IG=1.94 29
222RA cG $Other: E|g=241.8 {I5}, I|g=3.7 {I4} (1985Go05)
222RA L 301.381 18 4+ 135 PS +17-14
222RA B 0.35 7 9.54 11 1U
222RAS B EAV=583.8 34
222RA G 190.24 2 1.19 5 E2 0.702 10
222RAS G KC=0.1778 25$LC=0.386 5$MC=0.1043 15
222RAS G NC=0.0275 4$OC=0.00590 8$PC=0.000872 12$QC=8.46E-6 12
222RA2 G %IG=0.59 7
222RA cG $Other: E|g=190.3 {I4}, I|g=1.00 {I15} (1985Go05)
222RA L 317.283 14 (3)- 4.7 PS +26-14
222RA B 53 8 6.43 9
222RAS B EAV=614.9 37
222RA G 75.13 2 0.017 4 [E2] 36.8 5
222RAS G LC=27.0 4$MC=7.35 10
222RAS G NC=1.940 27$OC=0.412 6$PC=0.0593 8$QC=0.0001583 22
222RA2 G %IG=0.0084 22
222RA G 206.18 2 100 10 E1 0.0839 12
222RAS G KC=0.0669 9$LC=0.01289 18$MC=0.00308 4
222RAS G NC=0.000805 11$OC=0.0001788 25$PC=2.93E-5 4$QC=1.758E-6 25
222RA2 G %IG=49.3 54
222RA cG $Other: E|g=206.10 {I4}, I|g=100 (1985Go05)
222RA L 473.751 26 (5-) 24 PS +5-9
222RA G 172.37 2 0.12 1 [E1] 0.1288 18
222RAS G KC=0.1021 14$LC=0.02026 28$MC=0.00486 7
222RAS G NC=0.001267 18$OC=0.000280 4$PC=4.55E-5 6$QC=2.62E-6 4
222RA2 G %IG=0.059 8
222RA L 1024.861 18 (2+)
222RA B 0.83 11 7.41 8
222RAS B EAV=336.3 34
222RA G 707.54 3 0.89 4 [E1] 0.00599 8
222RAS G KC=0.00492 7$LC=0.000817 11$MC=0.0001926 27
222RAS G NC=5.05E-5 7$OC=1.143E-5 16$PC=1.960E-6 27$QC=1.446E-7 20
222RA2 G %IG=0.439 52
222RA cG $Other: E|g=706.4 {I10}, I|g=0.71 {I20} (1985Go05)
222RA G 723.45 4 0.030 4 [E2] 0.0171124
222RAS G KC=0.01253 18$LC=0.00344 5$MC=0.000859 12
222RAS G NC=0.0002266 32$OC=5.04E-5 7$PC=8.29E-6 12$QC=4.39E-7 6
222RA2 G %IG=0.0148 26
222RA G 782.77 3 0.87 8 [E1] 0.00497 7
222RAS G KC=0.00408 6$LC=0.000672 9$MC=0.0001582 22
222RAS G NC=4.15E-5 6$OC=9.40E-6 13$PC=1.616E-6 23$QC=1.206E-7 17
222RA2 G %IG=0.43 6
222RA cG $Other: E|g=780.7 {I10}, I|g=0.40 {I15} (1985Go05)
222RA G 913.69 5 0.15 2
222RA2 G %IG=0.074 13
222RA G 1025.02 8 0.060 10
222RA2 G %IG=0.030 6
222RA L 1170.886 32 (3-,4+)
222RA B 0.07 4 8.25 +39-22
222RAS B EAV=281.9 33
222RA G 696.88 5 0.046 8 [D,E2] 0.040 33 A
222RA2 G %IG=0.0227 47
222RAF G FL=473.751
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=697.13
222RA G 853.78 8 0.16 1
222RA2 G %IG=0.079 10
222RA G 869.6 2 0.13 4
222RA2 G %IG=0.064 21
222RA L 1171.53 4 (1,2+)
222RA B 0.76 10 7.22 9
222RAS B EAV=281.6 33
222RA G 929.47 8 0.14 2
222RA2 G %IG=0.069 13
222RA G 1060.33 5 0.92 7
222RA2 G %IG=0.45 6
222RA cG $Other: E|g=1059.2 {I15}, I|g=0.63 {I20} (1985Go05)
222RA G 1171.69 8 0.49 5
222RA2 G %IG=0.242 36
222RA cG $Other: E|g=1168, I|g=0.3 (1985Go05)
222RA L 1225.21 5 (1,2+)
222RA B 0.086 14 8.07 10
222RAS B EAV=262.2 33
222RA G 982.90 8 0.072 14
222RA2 G %IG=0.036 8
222RA G 1114.26 8 0.074 14
222RA2 G %IG=0.037 8
222RA G 1225.24 8 0.028 5
222RA2 G %IG=0.0138 29
222RA L 1264.99 4 (2+,3)
222RA B 0.34 5 7.40 9
222RAS B EAV=247.8 32
222RA G 963.61 6 0.14 2
222RA2 G %IG=0.069 13
222RA G 1153.87 5 0.54 5
222RA2 G %IG=0.266 38
222RA L 1310.19 8 (0+,1,2,3-)
222RA B 0.021 5 8.52 13
222RAS B EAV=231.7 32
222RA G 1068.08 8 0.043 8
222RA2 G %IG=0.0212 46
222RA L 1360.83 9 (1-,2,3)
222RA B 0.051 8 8.03 10
222RAS B EAV=213.7 32
222RA G 1043.60 9 0.065 8
222RA2 G %IG=0.0321 53
222RA G 1249.1 1 0.039 7 A
222RA2 G FL=111.117
222RA2 G %IG=0.0192 41
222RA cG E$uncertainty multiplied by a factor of 3 in the fitting; level-energy
222RA2cG difference=1249.71
222RA L 1375.72 8 (1,2,3-)
222RA B 0.036 6 8.15 11
222RAS B EAV=208.4 31
222RA G 1133.61 8 0.074 8
222RA2 G %IG=0.037 6
222RA L 1402.541 25 (2+,3-)
222RA B 0.64 9 6.84 9
222RAS B EAV=199.0 31
222RA G 231.67 4 0.076 8 [D,E2] 0.8 7
222RA2 G FL=1170.886
222RA2 G %IG=0.038 6
222RA G 377.64 4 0.12 1 [D,E2] 0.020 18
222RA2 G %IG=0.059 8
222RA G 1085.20 5 0.46 6
222RA2 G %IG=0.227 39
222RA G 1101.09 5 0.50 5
222RA2 G %IG=0.247 37
222RA G 1160.52 8 0.072 7
222RA2 G %IG=0.0355 52
222RA G 1291.61 8 0.048 8
222RA2 G %IG=0.0237 47
222RA L 1432.70 5 (1,2,3-)
222RA B 0.144 19 7.42 9
222RAS B EAV=188.7 31
222RA G 1190.4 1 0.023 4
222RA2 G %IG=0.0113 23
222RA G 1321.65 6 0.27 2
222RA2 G %IG=0.133 18
222RA L 1439.883 28(3-)
222RA B 0.33 5 7.05 10
222RAS B EAV=186.3 31
222RA G 268.99 4 0.040 8 [D,E2] 0.53 48
222RA2 G FL=1170.886
222RA2 G %IG=0.0197 45
222RA G 415.05 4 0.032 6 [E1] 0.0173224
222RAS G KC=0.01407 20$LC=0.002471 35$MC=0.000586 8
222RAS G NC=0.0001535 21$OC=3.45E-5 5$PC=5.83E-6 8$QC=3.99E-7 6
222RA2 G %IG=0.0158 34
222RA G 966.24 9 0.070 14
222RA2 G %IG=0.035 8
222RA G 1122.41 9 0.12 2
222RA2 G %IG=0.059 12
222RA G 1138.47 5 0.30 3
222RA2 G %IG=0.148 22
222RA G 1197.99 8 0.089 15 A
222RA2 G %IG=0.044 9
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=1197.771
222RA L 1499.45 5 (1-,2,3-)
222RA B 0.120 16 7.34 9
222RAS B EAV=166.2 30
222RA G 474.45 9 0.079 8 [D,E2] 0.11 10
222RA2 G %IG=0.039 6
222RA G 1182.05 8 0.069 8
222RA2 G %IG=0.0340 54
222RA G 1257.5 1 0.026 5
222RA2 G %IG=0.0128 28
222RA G 1388.5 1 0.060 8
222RA2 G %IG=0.0296 51
222RA L 1555.94 7 (2+)
222RA B 0.068 10 7.43 10
222RAS B EAV=147.2 30
222RA G 1238.60 8 0.054 7
222RA2 G %IG=0.0266 45
222RA G 1254.4 2 0.014 3
222RA2 G %IG=0.0069 17
222RA G 1445.2 2 0.037 6
222RA2 G %IG=0.0182 36
222RA G 1556.5 2 0.032 6 A
222RA2 G %IG=0.0158 34
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=1555.94
222RA L 1619.58 9 (1,2,3-)
222RA B 0.049 8 7.38 12
222RAS B EAV=126.3 29
222RA G 1377.4 1 0.080 9
222RA2 G %IG=0.039 6
222RA G 1508.7 2 0.019 4
222RA2 G %IG=0.0094 22
222RA L 1644.823 34 (2+,3-)
222RA B 0.12 6 6.91 +34-22
222RAS B EAV=118.3 29
222RA G 619.95 4 0.072 8 [D,E2] 0.054 46
222RA2 G %IG=0.036 6
222RA G 1327.58 6 0.23 2
222RA2 G %IG=0.113 16
222RA G 1343.3 1 0.024 4
222RA2 G %IG=0.0118 24
222RA G 1402.5 2 0.062 7
222RA2 G %IG=0.0306 48
222RA G 1534.1 2 0.039 7
222RA2 G %IG=0.0192 41
222RA L 1754.33 5 (3-)
222RA B 0.101 15 6.55 12
222RAS B EAV=84.3 27
222RA G 351.75 4 0.037 8 [D,E2] 0.25 22
222RA2 G %IG=0.0182 44
222RA G 1280.99 9 0.024 5 A
222RA2 G FL=473.751
222RA2 G %IG=0.0118 28
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=1280.57
222RA G 1436.4 1 0.071 7 A
222RAF G FL=317.283
222RA2 G %IG=0.0350 52
222RA cG E$uncertainty multiplied by a factor of 3 in the fitting; level-energy
222RA2cG difference=1437.04
222RA G 1453.4 1 0.032 6 A
222RAF G FL=301.381
222RA2 G %IG=0.0158 34
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=1452.94
222RA G 1643.9 2 0.031 8 A
222RAF G FL=111.117
222RA2 G %IG=0.0153 43
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=1643.20
222RA L 1821.52 20 (1,2,3-)
222RA B 0.016 4 7.0 +19-16
222RAS B EAV=64.0 26
222RA G 1579.4 2 0.032 6
222RA2 G %IG=0.0158 34
222RA L 1841.14 5 (1,2,3-)
222RA B 0.10 5 6.09 +37-25
222RAS B EAV=58.5 26
222RA G 196.31 4 0.08 1 [D,E2] 1.3 12
222RA2 G %IG=0.039 7
222RA G 1599.6 2 0.013 4 A
222RA2 G %IG=0.0064 21
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=1599.02