39K 39CA EC DECAY (860.3 MS) 1994HA07,1984AD01 18NDS 201803
39K H TYP=FUL$AUT=JUN CHEN$CIT=NDS 149, 1 (2018)$CUT=1-Jan-2018$
39K c 1994Ha07: {+39}Ca source was produced by bombardment of a stack of 190
39K 2c |mg/cm{+2} thick KF targets with 13 MeV proton beam from the TASCC
39K 3c facility at the Chalk River Laboratories. |g rays were detected with
39K 4c a HPGe detector and |b particles were detected with |b scintillators.
39K 5c A pair of plastic scintillators in front of HPGe detector was used to
39K 6c reject events from bremsstrahlung from positrons. Very weak |g rays
39K 7c could be detected with a high degree of sensitivity. Measured E|g, I|g,
39K 8c |g|b|b-coin. Deduced levels, decay branching ratios, log {Ift}, parent
39K 9c T{-1/2}, matrix elements. Comparisons with theoretical calculations.
39K c 1984Ad01: {+39}Ca source was produced from thick targets of KCL
39K 2c bombarded by 13 MeV proton beam from the University of Washington FN
39K 3c tandem. |g rays were detected with a Ge(Li) detector. Measured E|g,
39K 4c I|g. Deduced decay branching ratios.
39K c Others:
39K c 2010Bl09: Measured parent T{-1/2}
39K c 1992Ma63: fragment recoil separation in {+197}Au({+40}Ca,X)
39K c 1978Ra15: measured E|b, deduced Q value
39K c 1977Az01, 1973Al11: measured isotopic T{-1/2}
39K c 1976Ma14: measured I|g
39K c 1971De05: measured |b|g coin
39K c 1964Ba24: measured T{-1/2}
39K c 1960Ta14: measured |g
39K c 1960Wa04: measured E|b, half-life
39K c Pre-1960 references dealing with identification, production and
39K 2c half-life measurement: 1958Ki40, 1958Mi85, 1954Kl36, 1954Hu23,
39K 3c 1953Su81, 1953Br07, 1951Bo56, 1949Mc17, 1948Wa13, 1943Hu02.
39K D 1951Bo56: BOLEY AND ZAFFARANO: PHYS REV 84, 1059 (1951)
39K cE TI$From measured limits of |g-ray intensities (1994Ha07)
39K cG E$Rounded-off values from Adopted Gammas, unless otherwise noted.
39K cL J$From Adopted Levels
39CA P 0 3/2+ 860.3 MS 10 6524.5 6
39CA cP J$From Adopted Levels of {+39}Ca
39CA cP T$Weighted average of 860.7 ms {I10} (2010Bl09), 860.4 ms {I30}
39CA2cP (1973Al11) and 859.4 ms {I16} (1977Az01). Others: 0.76 s {I20}
39CA3cP (1994Ha07), 0.95 s {I4} (1964Ba24), 0.89 s {I5} (1960Wa04), 0.873 s
39CA4cP {I8} (1960Li05), 0.860 s {I5} (1958Mi85), 0.876 s {I12} (1958Cl41),
39CA5cP 0.90 s {I1} (1954Kl36), 1.00 s {I3} (1953Su81), 1.00 s {I5} (1953Br07),
39CA6cP 1.06 s {I3} (1943Hu02)
39CA cP QP$From 2017Wa10
39K N 1 1 1
39K PN 3
39K L 0 3/2+
39K E 99.920 3 0.0771 8 3.6300 6 99.9975 27
39K S E EAV=2558.27 30$CK=0.0006923 3$CL=6.792E-5 3$CM+=1.1000E-5 4
39K cE TI$assuming total feeding (to g.s.+2522)=100
39K L 2522.34 26 1/2+
39K E 0.0025 3 1.19E-513 7.02 5 0.00250 27C
39K S E EAV=1334.96 32$CK=0.004282 3$CL=0.0004204 3$CM+=6.808E-5 5
39K cE TI$from 1994Ha07. Other: 0.0023 {I6} (1984Ad01). Interpreted as
39K 2cE 1d{-3/2} to 2s{-1/2} l-forbidden transition (1994Ha07)
39K G 2522.2 3 0.0025 3
39K cG E$weighted average of 2522.25 {I26} from 1994Ha07 and 2522.0 {I4} from
39K 2cG 1984Ad01
39K cG RI$from I|b feeding
39K L 2814 7/2-
39K E 0.00035LT 5.9E-6 LT 9.0 GT 0.00036 LT 1U?
39K S E EAV=1221.69 29$CK=0.01467 1$CL=0.001443 1$CM+=0.0002337 2
39K G 2814
39K L 3019 3/2-
39K E 0.00033LT 2.7E-6 LT 7.5 GT 0.00033 LT ?
39K S E EAV=1099.16 29$CK=0.007381 6$CL=0.0007248 6$CM+=0.000117
39K G 3019
39K L 3597 9/2-
39K E 0.00070LT 1.3E-5 LT 6.7 GT 0.00071 LT ?
39K S E EAV=828.25 28$CK=0.01635 2$CL=0.001606 2$CM+=0.0002602 3
39K G 3597
39K L 3883 5/2-
39K E 0.00039LT 1.2E-5 LT 6.7 GT 0.00040 LT ?
39K S E EAV=697.08 28$CK=0.02659 3$CL=0.002612 3$CM+=0.0004231 5
39K G 3883
39K L 3939 3/2+
39K E 0.00030LT 1.0E-5 LT 6.7 GT 0.00031 LT ?
39K S E EAV=671.52 28$CK=0.02954 4$CL=0.002903 4$CM+=0.0004701 6
39K G 3938
39K L 3944 11/2-
39K E 0.0028 LT 9.6E-5 LT 5.7 GT 0.0029 LT ?
39K S E EAV=669.24 28$CK=0.02982 4$CL=0.002931 4$CM+=0.0004747 6
39K G 1130
39K L 4082 3/2-
39K E 0.00033LT 1.5E-5 LT 6.5 GT 0.00035 LT ?
39K S E EAV=606.59 28$CK=0.03934 5$CL=0.003866 5$CM+=0.0006262 8
39K G 4082
39K L 4095 1/2+
39K E 0.00034LT 1.6E-5 LT 6.4 GT 0.00036 LT ?
39K S E EAV=600.71 28$CK=0.04043 6$CL=0.003973 5$CM+=0.0006435 9
39K G 1573
39K L 4126 7/2-
39K E 0.00031LT 5.2E-5 LT 7.3 GT 0.00036 LT 1U?
39K S E EAV=616.97 27$CK=0.13076 18$CL=0.012892 18$CM+=0.002089 3
39K G 1312
39K L 4474 1/2-,3/2-
39K E 0.00044LT 5.6E-5 LT 5.8 GT 0.00050 LT ?
39K S E EAV=431.24 27$CK=0.10140 17$CL=0.009971 17$CM+=0.001615 3
39K G 1952