149DY    153ER A DECAY (37.1 S)        1996PA01,1982BO04,1982DE1122NDS    202210
149DY  H TYP=FUL$AUT=Balraj Singh and Jun Chen$CIT=NDS 185, 2 (2022)$
149DY2 H CUT=23-Aug-2022$
149DY c  1996Pa01: {+106}Cd,{+112}Sn({+58}Ni,X) with E=300 MeV and 329 MeV
149DY2c  {+58}Ni, respectively, from the Daresbury Laboratory Nuclear Structure
149DY3c  Facility. Measured E|a
149DY c  1982Bo04(also 1973BoXW): spallation of uranium, thorium, gold and
149DY2c  tantalum targets with 5 GeV proton from the LBNL Bevatron. Measured
149DY3c  E|a, T{-1/2}
149DY c  1982De11: 245-300 MeV {+63}Cu ions on silver, cadmium, indium and
149DY2c  tin targets. Measured E|a
149DY c  1980Da09: spallation of Ho, Tm, Ta, Re and Au targets with 480-MeV
149DY2c  proton from the cyclotron at TRIUMF. Measured E|a, T{-1/2}
149DY c  1963Ma18: {+142}Nd({+16}O,5n) E=75-151 MeV {+16}O beam from the
149DY2c  Berkeley heavy-ion accelerator (HILAC). Measured E|a, T{-1/2},
149DY3c  branching ratio.
149DY c  1970To16: {+156}Dy({+3}He,6n) E=97.3 MeV and {+162}Er({+3}He,|a8n)
149DY2c  E=101.2 MeV from the Oak Ridge isochronous cyclotron (ORIC). Measured
149DY3c  E|a, T{-1/2}.
149DY c  1974To07: {+147}Sm({+12}C,6n) E=118 MeV from ORIC. Measured E|a, |g-
149DY2c  and x-rays. Deduced branching ratio.
149DY c  1977Ha48: spallation of Ta targets with 600-MeV proton from the CERN
149DY2c  synchro-cyclotron. Measured E|a, T{-1/2}, branching ratio.
149DY c  1978AfZZ: |a emitter was produced with 1 GeV proton from the
149DY2c  synchro-cyclotron of Leningrad Nuclear Physics Institute (LNPI) at
149DY3c  USSR. Measured E|a, T{-1/2}
149DY c  1979Ho10 (also 1981HoZM): Ag, Pd, Rh({+58}Ni,X) with E=276 MeV beam
149DY2c  from the UNILAC at GSI. Measured E|a.
149DY c  Others: 1996Pa01, 1988To13, 1988KaZK, 1987Bl14
149DY cA HF$The nuclear radius parameter r{-0}({+149}Dy)=1.558 {I10}
149DY2cA is deduced from interpolation (or unweighted average) of radius
149DY3cA parameters of the adjacent even-even nuclides in 2020Si16
153ER  P  0.0         (7/2-)           37.1 S    2              4802.4    14
153ER cP J,T$From {+153}Er Adopted Levels in the ENSDF database
153ER2cP (August 2020 update)
153ER dP T$37.1 s {I2} (1982Bo04), 36.3 s {I2} and 36 s {I5} (1980Da09), 36.9 s
153ER2dP {I3} (1978AfZZ), 40 s {I2} (1977Ha48), 36 s {I1} (1970To16), 36 s {I2}
153ER3dP (1963Ma18)
153ER cP QP$From 2021Wa16
149DY  N                       0.53    3
149DY cN BR$53% {I3} from 1977Ha48. Deduced by comparison of I|a of parent
149DY2cN and daughter in equilibrium. Other measurement: 38 {I+19-7}
149DY3cN (1974To07); 95 {I+5-20} from 1963Ma18 seems discrepant.
149DY  A 4518                                                                  ?
149DY cA E$The 4518-keV |a group was reported by 1980Da09
149DY2cA and was assigned to {+153}Er from their measured T{-1/2}=35.1 s {I20}.
149DY3cA This |a group was not observed by 1979Ho10 nor by 1974To07, and
149DY4cA appears unlikely to belong to the {+153}Er |a decay since it would
149DY5cA populate a level in the daughter at 157 keV, and such a level
149DY6cA does not exist in {+149}Dy
149DY  L 0.0            7/2-             4.2 M   2
149DY cL J,T$from the Adopted Levels
149DY  A 4674       2  100       1.25  8
149DY cA E$Weighted average of 4674 {I4} (1996Pa0), 4671 keV {I3} (1982Bo04),
149DY2cA 4676 keV {I2} (1982De11), 4674 keV {I10} (1979Ho10,1981HoZM), 4671 {I3}
149DY3cA (1978AfZZ), 4675 keV {I10} (1977Ha48), 4670 {I10} (1970To16), and 4675
149DY4cA keV {I20} (1963Ma18). Others:  4671 (1988To13), 4670 (1987Bl14), 4673
149DY5cA and 4676 (1980Da09)