38AR 38K EC DECAY (7.651 M) 1976MA14,1968KA15 18NDS 201810
38AR H TYP=FUL$AUT=JUN CHEN$CIT=NDS 152, 1 (2018)$CUT=30-Sep-2017$
38AR c 1976Ma14: {+38}K source was produced via {+35}Cl(|a,n) reaction with
38AR2c |a beam provided by the ONR-CIT tandem impinged on BaCl{-2} target.
38AR3c |g rays were detected with a Ge(Li) detector. Measured E|g, I|g.
38AR4c Deduced levels, |b-decay branching ratios, log| {Ift}. Comparisons with
38AR5c available data.
38AR c 1968Ka15: {+38}K source was produced via {+36}Ar({+3}He,n) reaction
38AR2c with |a beam provided by the 5.5-MV Van de Graaff at Strasbourg
38AR3c impinged on a gas target of >99.9% enriched {+36}Ar. |g rays were
38AR4c detected with a Ge(Li) detector. Measured E|g, I|g, |g(t). Deduced
38AR5c levels, |b-decay branching ratios, parent T{-1/2}.
38AR c 1974Fa08: measured |b|g(circ pol)
38AR c 1970Re13, 1967Va27, 1965Eb01, 1964Ph02: measured half-life
38AR c 1965h02: hyperfine structure, NMR
38AR c 1956Gr07: measured |b{++}, T{-1/2}
38AR c Others: Nucl. Phys. 41, 364 (1963); 1960Ja12;
38AR2c Phys. Rev. 84, 847 (1951); Phys. Rev. 72, 639 (1947);
38AR3c 1937Ri01; 1937Hu01.
38AR D 1970AsZV (THESIS): MEASURED HALF-LIFE, EG, IG
38AR c Total decay energy deposit of 5918 keV {I2} calculated by RADLIST
38AR2c code is in agreement with the expected value of 5914.07 keV {I5}
38AR3c indicating the completeness of the decay scheme.
38AR cE TI(X)$Limits from 1976Ma14
38AR cG E$From 1968Ka15, unless otherwise stated
38AR cG RI$From |e+|b{++} branchings, unless otherwise noted.
38AR cG M$From Adopted Gammas
38AR cL E$From a least-squares fit to |g-ray energies
38AR cL J$From Adopted Levels
38AR cL E(X)$Rounded values from Adopted Levels
38K P 0 3+ 7.651 M 19 5914.07 4
38K cP J,T$From Adopted Levels of {+38}K
38K dP T$Unweighted average of 7.67 min {I3} (1957Cl23), 7.67 min {I5}
38K 2dP (1965Bo42), 7.70 min {I2} (1965Eb01), 7.60 min {I4} (1967Va27), and
38K 3dP 7.613 min {I11} (1970Re13). The same value is adopted in Adopted
38K 4dP Levels of {+38}K. Others: 7.4 min {I9} (2000Le02); 7.4 m {I13}
38K 5dP (1968Ka15); 6.5 m {I15} (1965Ph02); 7.0 m {I10}, Nucl. Phys. 41, 364
38K 6dP (1963); 7.7 m {I3} (1956Gr07); Phys. Rev. 72, 639 (1947); 7.7 m {I1}
38K 7dP (1937Ri01); 7.7 m {I1} (1937Hu01).
38K cP QP$From 2017Wa10
38AR N 1 1 1
38AR PN 4
38AR L 0 0+
38AR E 0.1 LT 0.0003 LT 12.8 GT 0.1 LT 2U?
38ARS E EAV=2292.81$CK=0.0031447 7$CL=0.0003047$CM+=4.4659E-5 9
38AR L 2167.6 3 2+
38AR E 99.332 11 0.516 5 4.975 1 99.848 10
38ARS E EAV=1212.03 20$CK=0.004650 3$CL=0.0004499 2$CM+=6.593E-5 3
38AR cE TI$from 100-I(|e+|b{++} to 3936). Others: 99.9 {I1} (1976Ma14), 99.80
38AR2cE {I3} (1968Ka15)
38AR cE E$|b{++} end-point energy measurement: 2600 {I50} (1967Va27), 2680
38AR2cE {I30} (1956Gr07)
38AR G 2167.5 3 99.848 10 E2
38AR L 3810.224 18 3- ?
38AR E 0.0092 LT 0.00082LT 7.3 GT 0.010 LT ?
38ARS E EAV=454.00 13$CK=0.07366 6$CL=0.007136 6$CM+=0.0010457 9
38AR L 3935.8 5 2+
38AR E 0.134 9 0.0178 12 5.88 3 0.152 10
38ARS E EAV=398.86 26$CK=0.10511 18$CL=0.010184 18$CM+=0.001492 3
38AR cE TI$weighted average of 0.141 {I5} (1976Ma14), 0.20 {I3} (1968Ka15) and
38AR2cE 0.165 {I6} as quoted in 1978En02 evaluation from private communication
38AR3cE of the evaluator of 1978En02 with Van der Poel and Engelbertink from
38AR4cE Utrecht University (this work in 1976 was unpublished). Only 1968Ka15
38AR5cE explicitly state that the |b{++} branching was calculated assuming
38AR6cE the 3936 level decays only to the ground state. The evaluator assume
38AR7cE that the same assumption also applies in the calculations of other two
38AR8cE values.
38AR G 1770 0.01 AP
38AR cG E$rounded value from Adopted Gammas.
38AR cG RI$estimated by the evaluator from the value of 0.0106 {I9} deduced
38AR2cG based on I|g(3935.6|g)=0.152 {I10} and adopted
38AR3cG I|g(1769|g)/I|g(3935.6|g)=7.0 {I4}/100.0 {I4}. This |g ray is too weak
38AR4cG to be seen in 1976Ma14 and 1968Ka15
38AR G 3935.6 5 0.152 10
38AR L 4565.5 2+ X ?
38AR E 0.025 LT 0.13 LT 4.7 GT 0.15 LTX ?
38ARS E EAV=133.62 12$CK=0.7514 4$CL=0.07290 4$CM+=0.010685 6
38AR L 5157.3 2+ X ?
38AR E 0.02 LT 5.0 GT 0.02 LTX ?
38ARS E CK=0.8996$CL=0.08757$CM+=0.01284
38AR L 5349.4 4+ X ?
38AR E 0.025 LT 4.6 GT 0.025 LTX ?
38ARS E CK=0.8993$CL=0.08778$CM+=0.01287
38AR L 5552.2 1+,2+ X ?
38AR E 0.025 LT 4.3 GT 0.025 LTX ?
38ARS E CK=0.8988$CL=0.08823$CM+=0.01295