44SC 44TI EC DECAY (59.1 Y) 1991We08,1990Sc08,1988Al2723NDS 202306
44SC H TYP=FUL$AUT=Jun Chen and Balraj Singh$CIT=NDS 190, 1 (2023)$
44SC2 H CUT=20-Jun-2023$
44SC c 1991We08: experiment performed at the Brookhaven National Laboratory.
44SC2c A LEPS-type Ge detector for detecting |g-rays. Measured E|g, I|g.
44SC3c Deduced high precision transition energies.
44SC c 1990Sc08: measured |g-emission rate. Deduced photo emission
44SC2c probabilities. Ge(Li) detectors
44SC c 1988Al27: {+44}Ti activity produced by the {+45}Sc(p,2n) reaction at
44SC2c the Brookhaven National Laboratory. Measured E|g, I|g, |g|g-coin.
44SC3c Deduced levels, branchings, T{-1/2} using delayed coincidence method.
44SC4c LEPS detector and Ge(Li) detectors.
44SC c 1967Ri06: measurement performed at the Brookhaven National Laboratory.
44SC2c Measured E|g, I|g, |g|g-correlation, X|g-coin. Deduced levels,
44SC3c |g-branchings, internal conversion coefficients, T{-1/2} using delayed
44SC4c coincidence method.
44SC c 1963Kl06: {+44}Ti activity produced by the {+45}Sc(d,3n) reaction.
44SC2c Measurement performed at the University of Colorado. Measured E|g,
44SC3c I|g, |g|g-coin. Deduced levels, |g-branchings, conversion coefficients,
44SC4c T{-1/2} using delayed coincidence method.
44SC c 2007Dr05: measured E|g, I|g, |g|g-coin. Deduced conversion
44SC2c coefficients and penetration parameter.
44SC c Others:
44SC c T{-1/2} of {+44}Ti: 2006Ah10, 2001Ha21, 2000Go15, 1999Wi01, 1998Ah03,
44SC2c 1998Go05, 1998No06, 1997No06, 1996Me22, 1990Al11, 1983Fr27, 1965Mo07,
44SC3c 1965Wi05
44SC c T{-1/2} and isotopic assignment: 1954Sh30, 1957Hu90, 1959Cy90.
44SC c |g: 1973Gr28, 1959Cy90, 1957Hu90
44SC c |g|g(|q): 1968Gl02, 1962Th12
44SC c |g|g(t): 1975Gu24
44SC c |g|g(|q,t): 1971Ha38, 1973Ha61, 1974Co20, 1974Re12, 1974Si09
44SC c Preparation of {+44}Ti radioactive target: 1999La11
44SC c The total average radiation energy of 268 keV 4 (which includes
44SC2c all the radiations emitted by {+44}Ti), calculated with the computer
44SC3c program RADLST, agrees very well with Q(|e)=267.4 keV {I19} (2021Wa16)
44SC4c and confirms the quality and completeness of the {+44}Ti decay scheme.
44SC cE $Subshell ratios are theoretical values from 1998Sc28.
44SC cE $The log| {Ift} systematic trend of second-forbidden transitions
44SC2cE suggests log| {Ift}>10.6 (1998Si17) for the 0+ to 2+ |e transition to
44SC3cE {+44}Sc ground state. This limit corresponds to I|e<0.04%.
44SC cE IE$From |g+ce intensity balance at each level, unless otherwise noted
44SC cG E$From 1991We08, unless otherwise specified.
44SC cG M$From ce data in 1963Kl06. The same assignments are adopted in
44SC2cG Adopted Gammas.
44SC cL E$From a least-squares fit to |g-ray energies
44SC cL J,T$From the Adopted Levels. For excited states, adopted values are
44SC2cL from this dataset, as noted under comments.
44TI P 0.0 0+ 59.1 Y 3 267.4 19
44TI cP T$From {+44}Ti Adopted Levels
44TI cP QP$From 2021Wa16
44SC N 0.968 13 1.0 1.0
44SC cN NR$weighted average of 0.959 {I15} deduced by the evaluators from
44SC2cN |SI(|g+ce to g.s.)=100 and 0.974 {I13} deduced by 1990Sc08 from
44SC3cN I|g(78.3|g) relative to that of the 1157-keV transition with
44SC4cN %I|g=0.999 {I1} in the decay of {+44}Sc in equilibrium with {+44}Ti
44SC PN 3
44SC L 0.0 2+ 4.0420 H 25
44SC L 67.8680 14 1- 154.8 NS 8
44SC cL T$weighted average of 155.6 ns {I7} (1988Al27), 155 ns {I2} (1975Gu24),
44SC2cL 166 ns {I5} (1963Kl06), 153 ns {I2} (1967Ri06), 153 ns {I1} (1962Th12),
44SC3cL 180 ns {I20} (1959Cy90).
44SC E 1.9 LT 8.7 GT
44SCS E CK=0.8839 7$CL=0.0999 5$CM+=0.01621 22
44SC cE IE$from 100-I(|e to 146 level)=0.2 {I+17-2}. Others: 0.7 {I3},
44SC2cE from a measurement of the 68- and 78-keV |g rays in delayed
44SC2cE coincidence with 4-keV x-rays from electron capture (1988Al27);
44SC3cE 1.9 {I15} (1967Ri06); 1.2 {I19} from |g+ce intensity balance
44SC G 67.8679 14 96.1 15 E1 0.0846 12
44SCS G KC=0.0770 11$LC=0.00676 9$MC=0.000831 12
44SCS G NC=4.47E-5 6
44SC2 G %IG=93.0 19
44SC cG E$others: 67.875 {I5} (1988Al27), 67.85 {I4} (1967Ri06), 67.85 {I7}
44SC2cG (1963Kl06)
44SC cG RI$weighted average (LWM) of 94.2 {I15} (1967Ri06), 98.1
44SC2cG {I15}(1988Al27), and 96.0 {I15} (1990Sc08). Original uncertainty of
44SC3cG 0.5 (1967Ri06) seemed unrealistically low. Evaluators increased it to
44SC4cG 1.5.
44SC cG M$from |a(K)exp=0.123 {I23} (1967Ri06); |a(exp)=0.10 {I5}
44SC2cG (1963Kl06). |a(exp)=0.069 {I11}, deduced by evaluator from decay
44SC3cG scheme by using %I|g(67.9)=93.5% {I15} (1990Sc08), and neglecting
44SC4cG the very weak 146-keV transition. |a(exp)=0.069 {I11} disagrees with a
44SC5cG theoretical value of 0.0845 {I25} (1976Ba63).
44SC L 146.1915 20 0- 51.0 US 3 M
44SC cL T$weighted average of 51.1 |ms {I3} (1988Al27), 49.5 |ms {I10}
44SC2cL (1964Br27), 50 |ms {I3} (1963Kl06).
44SC E 99.8 6.497 +8-1
44SC2 E DIE=+2-17
44SCS E CK=0.8812 8$CL=0.1022 6$CM+=0.01664 24
44SC cE IE$from I(|g+ce)(78.4)+I(|g+ce)(146)
44SC G 78.3234 14 100.0 11 M1 0.0302 4
44SCS G KC=0.0274 4$LC=0.002486 35$MC=0.000308 4
44SCS G NC=1.684E-5 24
44SC2 G %IG=96.8 17
44SC cG E$others: 78.337 {I3} (1988Al27), 78.38 {I4} (1967Ri06), 78.44 {I7}
44SC2cG (1963Kl06)
44SC cG RI$weighted average (LWM) of 100.0 {I11} (1967Ri06), 100.0 {I11}
44SC2cG (1988Al27), and 100.0 {I13} (1990Sc08). Original uncertainty of 0.5
44SC3cG (1967Ri06) seemed unrealistically low. Evaluators increased it to 1.1.
44SC cG M$from |a(K)exp=0.031 {I5} (1967Ri06); |a(exp)=0.017 {I8}
44SC2cG (1963Kl06). |a(exp)=0.019 {I14}, deduced by evaluator from decay
44SC3cG scheme by using %I|g(78.4)=97.4% {I13} (1990Sc08), I|e(to 67.9
44SC4cG level)=0.7% {I3} (1988Al27), and neglecting the very weak 146-keV
44SC5cG transition. |a(exp)=0.019 {I14} disagrees with a theoretical value of
44SCxcG 0.0302 {I9} (1976Ba63)
44SC G 146.22 0.095 3 [M2] 0.0459 6
44SCS G KC=0.0415 6$LC=0.00391 5$MC=0.000483 7
44SCS G NC=2.61E-5 4
44SC2 G %IG=0.092 3
44SC cG E$from level energy difference. Other: 147 {I15} (1967Ri06)
44SC cG RI$weighted average (LWM) of 0.10 {I3} (1967Ri06), 0.093 {I6}
44SC2cG (1988Al27), and 0.095 {I3} (1990Sc08).