222RA 226TH A DECAY (30.72 M) 1976KU08,1995KO54,2012MA3023NDS 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: A. Rathi and P.S. Rawat.
222RA c 1976Ku08: {+230}U activity was from decay of {+230}Pa produced by
222RA2c natural Thorium target with 100 MeV proton beam at Dubna. Measured E|g,
222RA3c I|g, |g|g-coin, |g(x ray)-coin, ce using two Ge(Li) detectors with
222RA4c volumes of 0.17cm{+3} and 32cm{+3} for low and high energy |g-rays and
222RA5c Si(Li) detector for ce measurement. Deduced levels, J, |p, |a-decay
222RA6c branching ratios, hindrance factors.
222RA c 1995Ko54: {+230}U activity was from decay of {+230}Pa produced via
222RA2c {+232}Th(p,3n){+230}Pa reaction at 30 MeV. Measured E|g, I|g using HPGe
222RA3c coaxial detector and LEPS detector. Deduced levels, J, |p, T{-1/2} of
222RA4c {+226}Th and {+222}Ra decay, |a-decay branching ratios, hindrance
222RA5c factors.
222RA c 2012Ma30: source of 18.6 mm diameter prepared from electro-deposition
222RA2c of {+230}U solution with activity at starting of order of 1kBq.
222RA3c |a-particles were detected using ion-implanted planar silicon detector.
222RA4c Measured E|a, I|a.
222RA c Other measurements or analyses:
222RA c 2012Po13: source prepared by capturing recoil atoms from open {+230}U;
222RA2c measured T{-1/2} of {+226}Th and {+222}Ra decays;
222RA3c |a detection by ion-implanted silicon detector.
222RA c 2009Mo37: Measured cross sections and thick-target yields;
222RA2c Deuteron irradiations of {+231}Pa targets ; comparison
222RA3c with EMPIRE 3 code; No E|a, I|a data for {+226}Th decay.
222RA c 1991Ry01: Evaluated E|a and I|a for the two most intense |a lines
222RA2c of 6338- and 6229-keV.
222RA c 1991Ga28: |a spectrum contained peaks assigned to {+226}Th decay;
222RA2c no E|a, I|a data; ON-Line Gas chemistry apparatus used.
222RA c 1988Hu08: |a spectrum contained peaks assigned to {+226}Th decay;
222RA2c no E|a, I|a data; measured mass-separated yields using
222RA3c ion-guide separation technique; used natural {+232}Th and radioactive
222RA4c {+230}Th targets with 55 MeV proton beam.
222RA c 1987Mi10: T{-1/2} of {+226}Th decay; {+232}Th irradiated with
222RA2c bremsstrahlung beams; solid state detector used for |a detection.
222RA c 1975VaZD: Measured E|a, I|a; deduced hindrance factors;
222RA2c JINR magnetic |a spectrograph; sources mass-separated from Th.
222RA c 1974Va28: Measured E|g, I|g.
222RA c 1971He19: {+226}Th source prepared by capturing recoil atoms from
222RA2c {+230}U on Al foil; |a|g(|q), geometrical factor corrections;
222RA3c Ge(Li) and surface barrier detector.
222RA c 1969Br10: Measured E|g, I|g, ce, |a|g-, |a(ce)-coin, Ge(Li) Detector.
222RA c 1969Pe17: {+226}Th source from successive disintegration of {+230}U
222RA2c extracted chemically from Th(p,3n){+230}Pa reaction;
222RA3c measured |a|g-coin, I|g for 111|g, I|a for 6229|a, ce; Si detector.
222RA c 1967LoZZ (thesis): Source produced by proton irradiation of natural Th;
222RA2c measured ce for {+222}Ra using double focusing spectrometer;
222RA3c E|g, I|g using Ge(Li) detector.
222RA c 1963Le17 (thesis): Sources are produced by irradiation method;
222RA2c E|a, I|a, E|g, I|g, ce, I{-ce}, |a|g-, |a(ce)-, |g-|g coin;
222RA3c silicon detectors, anthracene and NaI scintillators.
222RA c 1961Ru06 (thesis): Source by bombarding He ion beam at {+232}Th;
222RA2c E|a, I|a, I|g, |a|g-, |g-|g coin; ionization chamber and scintillator.
222RA c 1956As38: Source by collecting recoils from {+230}U |a-decay; E|a, I|a,
222RA2c E|g, I|g, |g|g-coin; electromagnetic spectrograph and NaI scintillator.
222RA c 1956Sm88: {+230}U separated from Th(p,3n){+230}Pa reaction, measured
222RA2c E|g using ce for {+230}U decay series; beta-ray spectrographs.
222RA c 1954St02: E|a, |g|g-coin, |a|g(|q), NaI(Tl) detector for |g and
222RA2c thin NaI crystal for |a.
222RA c 1948St42: Deuteron and He ion bombardment of Th; T{-1/2} of {+226}Th
222RA2c using |a-activity from recoils of parent; E|a using pulse analyzer.
222RA dA $Theoretical calculations of |a-decay half-lives, widths, branching
222RA2dA ratios, |a-decay probabilities, cluster decays, fission: 2023Xi06,
222RA3dA 2022Ak06, 2022Du04, 2022Is03, 2022Ou01, 2022Pa23, 2022Pr04, 2022Ro05,
222RA4dA 2022Ro06, 2022Sa26, 2022Si14, 2022Sr01, 2022Wa06, 2022Xu04, 2022Ya08,
222RA5dA 2021Bu02, 2021Ch44, 2021De07, 2021He09, 2021Ko21, 2021Ma20, 2021Pa24,
222RA6dA 2021Sa46, 2021So16, 2021Va09, 2021Wa29, 2021Ya28, 2020Be09, 2020Bu17,
222RA7dA 2020Ca10, 2020De37, 2020Gh10, 2020Is09, 2020Mo37, 2020Ni01, 2020Pa29,
222RA8dA 2020Qi03, 2020Zh36, 2019Li58, 2019Sa33, 2019Se05, 2019So15, 2019Sr04,
222RA9dA 2018Bh03, 2018Ho01, 2018Le11, 2018Pa32, 2018Sh01, 2018Su09, 2017Ad03,
222RAAdA 2017Ho09, 2017Ph01, 2017Sa62, 2017Sc05, 2017Zh03, 2016Gh04, 2016Gh05,
222RABdA 2016Ku10, 2016Na19, 2016Pa47, 2016Qi03, 2016Sa16, 2016Su09, 2015Ad15,
222RACdA 2015Ku28, 2015Ni12, 2015Ya18, 2014De43, 2014Ib02, 2014Is03, 2013De12,
222RADdA 2013Is13, 2013Ra05, 2013Se17, 2013Ta07, 2013Zd01, 2013Zd02, 2012Ba35,
222RAEdA 2012Is07, 2012Is08, 2012Ku16, 2012Ku29, 2012Pr09, 2012Re06, 2012Sa31,
222RAFdA 2011Qi06, 2011Sa28, 2011Sh03, 2011Si14, 2011Wa30, 2011Zh36, 2010Ni13,
222RAGdA 2010Sa29, 2010Si12, 2010Wa31, 2010Zh51, 2009Ar05, 2009Ar11, 2009De32,
222RAHdA 2009Do16, 2009Du08, 2009Ni06, 2009Qi07, 2009Wa01, 2009Yo08, 2009Zh28,
222RAIdA 2008Bh05, 2008Du01, 2008Du06, 2008Ro08, 2008Zh12, 2007Pe30, 2006De05,
222RAJdA 2006Xu08, 2005Bh02, 2005Ku04, 2005Ku32, 2005Sh42, 2003Ba64, 2001Bo11,
222RAKdA 1999De51, 1999Go26, 1996De19, 1995Ar33, 1993Po14, 1990Bu30, 1988Bl11,
222RALdA 1987Gu04, 1987Gu15, 1986Ch36, 1986Ir01, 1986Pa22, 1986Pi11, 1985Po14,
222RAMdA 1980Ka41, 1979Po23, 1977Ba70. Systematics of |a decay: 1948Pe14.
222RA cA E,IA$From 2012Ma30, unless otherwise noted. Uncertainty for E|a is not
222RA2cA given in 2012Ma30, but estimated as 1 keV in priv. comm. by the
222RA3cA evaluator (B. Singh) with S. Pomme in March 2021.
222RA cA HF$The nuclear radius parameter r{-0}({+222}Ra)=1.53762 {I45} is
222RA2cA deduced from assumed HF=1.0 for the ground-state to ground-state alpha
222RA3cA decay branch
222RA cA E(X),IA(X)$|a not observed; E|a from Q(|a)-level energy,
222RA2cA de-corrected for recoil; I|a from |g+ce intensity balance at each
222RA3cA level
222RA cG E,RI$Weighted or unweighted average of the listed values, as specified
222RA2cG in comments. Measured values are mainly from 1995Ko54 and 1976Ku08
222RA cL E$From a least-squares fit to E|g data. Reduced |h{+2}=2.1 is
222RA2cL within the 95% confidence limit
222RA cL J,T$From the Adopted Levels
222RA CL BAND(A)$g.s. band
222RA CL BAND(B)$Octupole band, based on 1-
222RA CL BAND(C)$Possible band based on (0+)
226TH P 0.0 0+ 30.72 M 5 6452.5 10
226TH cP T$NRM-weighted average with reduced |h{+2}=3.06 of 30.70 min {I3}
226TH2cP (2012Po13, analysis of seven |a-decay curves), 30.83 min {I1}
226TH3cP (1995Ko54, |g-decay curves for four sources, each counted for five
226TH4cP half-lives, uncertainty of 0.01 min gets inflated to 0.06 min in the
226TH5cP NRM procedure), 30.57 min {I10} (1987Mi10, |a-decay curves, weighted
226TH6cP average of 39 measurements). Weighted average is 30.82 {I3}, with
226TH7cP reduced |h{+2}=11.5. LWM-weighted average is 30.76 {I5}, with reduced
226TH8cP |h{+2}=6.8. Unweighted average is 30.70 {I8} min.
226TH9cP Other: 30.9 min (1948St42).
226TH cP QP$From 2021Wa16
222RA N 1.0 1.0
222RA cN BR$%|a=100 for {+226}Th decay. 2001Bo11 measured %{+18}O
222RA2cN cluster decay of <3.2|*10{+-14}
222RA PN 3
222RA G 929.5 2 0.020 6
222RA2 G %IG=0.020 6
222RA cG E,RI$from 1995Ko54. In {+222}Fr |b{+-} decay, E|g=929.47 {I8} is
222RA2cG reported in 1992Ru01 from an 1171.6 level, but there are several other
222RA3cG |g rays of comparable intensities in 1992Ru01, which are not reported
222RA4cG in 1995Ko54.
222RA L 0.0 0+ 33.6 S 4 A
222RA A 6338.2 10 75.39 10 1.0
222RA cA E$2012Ma30 give 1.4 keV higher than 6336.8 {I10} recommended by
222RA2cA 1991Ry01, based on measured values of 6337.5 {I50} (1975VaZD) and
222RA3cA 6330 {I10} (1956As38). Other: 6338.3 {I10} from Q(|a), de-corrected
222RA4cA for recoil; 6300 (1948St42, also mentioned E|a=6300 {I25} from
222RA5cA re-analysis by A. H. Joffey).
222RA cA IA$others: 79 (1956As38), 78 (1961Ru06), 75 {I8} (1975VaZD); 76.9
222RA2cA {I12} from 100-|SI(|g+ce to g.s.)
222RA L 111.134 9 2+ 0.52 NS 4 A
222RA cL T$adopted value from (6234|a)(ce 111|g)(t) (1960Be25)
222RA A 6229.1 10 22.93 9 1.076 13
222RA cA E$2012Ma30 give 4.9 keV lower than 6234 {I5} quoted in 2012Ma30 as
222RA2cA from 1991Ry01 based on measured values of 6234 {I5} (1975VaZD),
222RA3cA 6220 {I3} (1956As38), but the actual value from 1991Ry01 is 6230.7
222RA4cA {I30}. Other: 6229.2 {I10} from Q(|a)-level energy, de-corrected for
222RA5cA recoil.
222RA cA IA$others: 22.8 {I2} (1969Pe17), 19.0 {I15} (1956As38), 20 (1961Ru06),
222RA2cA 23.0 {I23} (1975VaZD); 21.4 {I12} from |g+ce intensity balance
222RA G 111.15 1 3.11 15 E2 6.12 9 C
222RA2 G %IG=3.11 15
222RAS G KC=0.293 4$LC=4.28 6$MC=1.166 16
222RAS G NC=0.308 4$OC=0.0655 9$PC=0.00951 13$QC=3.90E-5 5
222RA cG E$weighted average of 111.15 {I1} (1995Ko54), 111.12 {I3} (1976Ku08).
222RA2cG Others: 111.1 {I3} (1956Sm88, from L2, L3, M2, M3, N and O conversion
222RA3cG lines using |b-ray spectrometer), 112 {I3} (1956As38), 111 {I2}
222RA4cG (1967LoZZ), 111.3 (1969Pe17), 111 (1969Br10).
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=111.135
222RA cG RI$weighted average of 2.908 {I145} (1995Ko54), 3.290 {I200}
222RA2cG (1976Ku08), 3.3 {I2} (1969Pe17). Others: 3.8 {I4} (1961Ru06, author
222RA3cG mentioned that intensities are not determined experimentally so limits
222RA4cG on error are to be used from previous work 1956As38), 4.8 {I4}
222RA5cG (1956As38)
222RA cG $Relative I|g=100 (1969Br10)
222RA cG M$L12:L3:M23:N=17.0 {I22}:11.6 {I19}:9.5 {I17}:3.2 {I7} (1967LoZZ),
222RA2cG |a(L2)=2.4 {I4}, |a(L)=4.1 {I5} (1974Va28). I(ce) values given here
222RA3cG were normalized to Ice(K)(230|g of {+226}Ac decay)=5.45. For absolute
222RA4cG I(ce) values per 100|a decays, multiply by 0.269 {I18}. Value of
222RA5cG |a(exp)=6.24 {I25} was deduced by 1969Pe17 from |a|g-coin data.
222RA6cG Other: L/M+N+=3.12 (1969Br10)
222RA L 242.157 9 1- 9.5 PS +21-16 B
222RA cL T$other: <1.2 ns ((|a)(240|g)(t)) (1956St23)
222RA A 6100.2 10 1.266 7 5.02 7
222RA cA E$2012Ma30 give 1.2 keV higher than 6099 {I5} quoted as from 1991Ry01,
222RA2cA which however does have this E|a. Others: 6099.5 {I50} (1975VaZD),
222RA3cA 6095 (1956As38); 6100.5 {I10} from Q(|a)-level energy, de-corrected
222RA4cA for recoil.
222RA cA IA$other: 1.70 {I15} (1956As38), 1.2 {I4} (1963Le17), 1.3 {I2}
222RA2cA (1975VaZD); 1.25 {I4} from |g+ce intensity balance
222RA G 131.04 1 0.270 13(E1) 0.2499 35 C
222RA2 G %IG=0.270 13
222RAS G KC=0.1957 27$LC=0.0411 6$MC=0.00988 14
222RAS G NC=0.00257 4$OC=0.000565 8$PC=9.02E-5 13$QC=4.85E-6 7
222RA cG E$weighted average: 131.04 {I1} (1995Ko54), 131.02 {I5} (1976Ku08).
222RA2cG Other: 131 {I5} (1956As38), 131 (1969Br10).
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=131.021
222RA cG RI$weighted average: 0.262 {I13} (1995Ko54), 0.278 {I13} (1976Ku08).
222RA2cG Others: 0.4 {I1} (1956As38), 0.3 {I1} (1961Ru06, author mentioned that
222RA3cG intensities are not determined experimentally so limits on error are to
222RA4cG be used from previous work 1956As38)
222RA cG $Relative I|g=11 (1969Br10).
222RA cG M$from intensity balance. No ce lines were observed (1969Br10).
222RA G 242.14 1 0.866 26 E1 0.0575 8 C
222RA2 G %IG=0.866 26
222RAS G KC=0.0461 6$LC=0.00866 12$MC=0.002068 29
222RAS G NC=0.000541 8$OC=0.0001204 17$PC=1.990E-5 28$QC=1.236E-6 17
222RA cG E$weighted average: 242.14 {I1} (1995Ko54), 242.12 {I5} (1976Ku08).
222RA2cG Other: 242 {I3} (1956As38), 242 (1969Br10).
222RA cG RI$weighted average: 0.866 {I26} (1995Ko54), 0.866 {I40} (1976Ku08).
222RA2cG Others: 1.2 {I1} (1956As38), 1.2 {I4} (1963Le17), 0.9 {I1} (1961Ru06,
222RA3cG author mentioned that intensities are not determined experimentally so
222RA4cG limits on error are to be used from previous work 1956As38).
222RA cG $Relative I|g=29 (1969Br10),
222RA cG M$from |a(K)exp|?0.06 (estimated by the evaluator from the (|a)(ce)
222RA2cG spectrum shown by 1969Br10).
222RA L 301.445 13 4+ 135 PS +17-14 A
222RA cL T$other: <1.4 ns (|a(190|g)(t)) (1956St23)
222RA A 6042.5 10 0.181 4 18.7 5
222RA cA E$2012Ma30 give 2.5 keV higher than 6040 {I5} in 1975VaZD.
222RA5cA Other: 6042.2 {I10} from Q(|a)-level energy, de-corrected for recoil.
222RA cA IA$others: 0.20 {I2} (1975VaZD); 0.189 {I7} from |g+ce intensity
222RA2cA balance
222RA G 190.31 1 0.111 4 E2 0.701 10
222RA2 G %IG=0.111 4
222RAS G KC=0.1776 25$LC=0.385 5$MC=0.1041 15
222RAS G NC=0.0275 4$OC=0.00589 8$PC=0.000871 12$QC=8.45E-6 12
222RA cG E$weighted average: 190.31 {I1} (1995Ko54), 190.30 {I5} (1976Ku08).
222RA2cG Other: 197 {I10} (1956As38), 188 (1969Br10).
222RA cG RI$weighted average: 0.112 {I4} (1995Ko54), 0.109 {I6} (1976Ku08).
222RA2cG Others: 0.40 {I5} (1956As38), 0.30 {I5} (1961Ru06, author mentioned
222RA3cG that I|g are not determined experimentally so limits on error are to be
222RA4cG used from previous work 1956As38)
222RA cG $Relative I|g=3.3 (1969Br10)
222RA cG M$from ce data of 1976Ku08 (measured ce intensities were not
222RA2cG given). Only E2 multipolarity yields an intensity balance at the
222RA3cG 301.42-keV level. Other: L/M+N+=1.8 (1969Br10), I(ce)=0.4 (1956As38).
222RA L 317.385 13 (3)- 4.7 PS +26-14 B
222RA A 6027.1 10 0.230 5 12.42 31
222RA cA E$2012Ma30 give 0.9 keV lower than 6028 {I5} quoted as from 1991Ry01,
222RA2cA which however does have this E|a. Other: 6024.5 {I50} (1975VaZD), 6029
222RA3cA (1956As38); 6026.6 {I10} from Q(|a)-level energy, de-corrected for
222RA4cA recoil.
222RA cA IA$others: 0.22 {I2} (1975VaZD); 0.207 {I7} from |g+ce intensity
222RA2cA balance
222RA G 75.13 2 0.000033 9 [E2] 36.8 5 S
222RA2 G %IG=0.000033 9
222RAF G FL=242.157
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
222RA cG E$from 1992Ru01 in {+222}Fr |b{+-}. The E|g value not used in
222RA2cG the least-squares fitting procedure. Fitted E|g=75.228 {I13}.
222RA cG RI$from I|g(75|g)/I|g(206|g)=0.017 {I4}/100 {I10} (1992Ru01,{+222}Fr
222RA2cG |b{+-} decay).
222RA G 206.25 1 0.191 6 E1 0.0838 12
222RA2 G %IG=0.191 6
222RAS G KC=0.0669 9$LC=0.01288 18$MC=0.00308 4
222RAS G NC=0.000804 11$OC=0.0001786 25$PC=2.93E-5 4$QC=1.757E-6 25
222RA cG E$weighted average: 206.25 {I1} (1995Ko54), 206.23 {I5} (1976Ku08).
222RA2cG Other: 207 (1969Br10).
222RA cG RI$weighted average: 0.192 {I6} (1995Ko54), 0.189 {I8} (1976Ku08).
222RA cG $Relative I|g=5.5 (1969Br10).
222RA cG M$from ce data of 1976Ku08 (measured ce intensities were not
222RA2cG given). Only E1 multipolarity is consistent with the intensity balance
222RA3cG at the 317.35 level. Other: I(ce)/I|g|<0.04 (1969Br10).
222RA L 473.74 20 (5-) 24 PS +5-9 B
222RA A 5872.8 102.28E-4 23 2.26E3 23 X S
222RA G 172.3 2 2.02E-4 20 [E1] 0.1289 18
222RA2 G %IG=0.000202 20
222RAS G KC=0.1022 15$LC=0.02028 29$MC=0.00486 7
222RAS G NC=0.001268 18$OC=0.000280 4$PC=4.55E-5 7$QC=2.62E-6 4
222RA cG E$weighted average: 172.3 {I2} (1995Ko54), 172.3 {I3} (1976Ku08)
222RA cG RI$weighted average: 0.00030 {I15} (1995Ko54), 0.00020 {I2} (1976Ku08,
222RA2cG |g observed only in |g|g-coin in this work)
222RA L 914.174 22 (0+) C
222RA A 5440.2 103.3E-4 4 8.5 9 X S
222RA G 672.02 2 0.00029 2 [E1] 0.00661 9
222RA2 G %IG=0.00029 2
222RAS G KC=0.00542 8$LC=0.000904 13$MC=0.0002132 30
222RAS G NC=5.59E-5 8$OC=1.264E-5 18$PC=2.166E-6 30$QC=1.588E-7 22
222RA cG E$weighted average: 672.02 {I2} (1995Ko54), 671.9 {I3} (1976Ku08).
222RA cG RI$weighted average: 0.00029 {I2} (1995Ko54), 0.00028 {I3} (1976Ku08).
222RA G 802.7 1 3.7E-5 24 [E2] 0.0138519
222RA cG E$poor fit in the level scheme, level-energy difference=803.036;
222RA2cG uncertainty multiplied by a factor of 2 in the fitting procedure
222RAF G FL=111.134
222RA2 G %IG=0.000037 24
222RAS G KC=0.01035 14$LC=0.00263 4$MC=0.000651 9
222RAS G NC=0.0001717 24$OC=3.83E-5 5$PC=6.35E-6 9$QC=3.59E-7 5
222RA cG E$weighted average: 802.7 {I1} (1995Ko54), 802.7 {I5} (1976Ku08).
222RA cG E$uncertainty multiplied by a factor of 2 in the fitting; level-energy
222RA2cG difference=803.037
222RA cG RI$unweighted average: 0.000013 {I4} (1995Ko54), 0.00006 {I2}
222RA2cG (1976Ku08).
222RA L 1024.96 6 (2+) C
222RA cL J$gammas to 0+ and 4+ levels; possible member of band based on (0+)
222RA A 5331.4 101.50E-4 23 4.6 8 X S
222RA G 707.52 9 0.00005 1 [E1] 0.00600 8
222RA2 G %IG=0.00005 1
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$QC=1.446E-7 20
222RA cG E$weighted average: 707.52 {I9} (1995Ko54), 707.5 {I5} (1976Ku08).
222RA cG RI$weighted average: 0.00005 {I1} (1995Ko54), 0.00006 {I2} (1976Ku08).
222RA G 722.9 4 7E-6 3 [E2] 0.0171424
222RA2 G %IG=0.000007 3
222RAS G KC=0.01255 18$LC=0.00345 5$MC=0.000861 12
222RAS G NC=0.0002271 32$OC=5.05E-5 7$PC=8.31E-6 12$QC=4.40E-7 6
222RA cG E,RI$from 1995Ko54
222RA G 783.0 5 5.6E-5 12 [E1] 0.00496 7
222RA2 G %IG=0.000056 12
222RAS G KC=0.00408 6$LC=0.000672 9$MC=0.0001582 22
222RAS G NC=4.15E-5 6$OC=9.40E-6 13$PC=1.615E-6 23$QC=1.205E-7 17
222RA cG E$weighted average: 782.9 {I5} (1995Ko54), 783.0 {I5} (1976Ku08)
222RA cG RI$weighted average: 0.000052 {I10} (1995Ko54), 0.00009 {I3}
222RA2cG (1976Ku08).
222RA G 913.9 4 3.3E-5 16
222RA2 G %IG=0.000033 16
222RA cG E,RI$from 1995Ko54.
222RA G 1025.02 8 3.6E-6 8 [E2] 0.0085912 S
222RA2 G %IG=0.0000036 8
222RAS G KC=0.00666 9$LC=0.001456 20$MC=0.000356 5
222RAS G NC=9.36E-5 13$OC=2.104E-5 29$PC=3.55E-6 5$QC=2.256E-7 32
222RA cG E$from 1992Ru01 in {+222}Fr |b{+-} decay.
222RA cG RI$I|g(1025|g)/I|g(707|g+783|g)=0.060 {I10}/1.76 {I9}
222RA2cG (1992Ru01,{+222}Fr |b{+-}) gives I|g(1025|g)=0.0000036 {I8}, which is
222RA3cG adopted here.