80SE 80BR EC DECAY (17.68 M) 1969KA06,1967RA12,1970DO0205NDS 200508
80SE H TYP=FUL$AUT=BALRAJ SINGH$CIT=NDS 105, 223 (2005)$CUT=22-Jun-2005$
80SE c 1969Ka06: measured |g, |g|g, |b{++}, |b{+-}, |b|g, T{-1/2}
80SE c 1967Ra12: measured |g, |g|g, |g|g(|q)
80SE c 1970Do02: measured |g
80SE c Others:
80SE c |g, |g|g: 1962Tr03, 1968Da24, 1956La24, 1953Sc71
80SE c |b{++} data: 1956La24, 1954Li19, 1954La34, 1954La39,
80SE2c 1953La36, 1952La20, 1951La08, 1949Dz19
80SE c |b{++}/|b{+-} ratio: 1950Re51, 1947Ba08
80SE c T{-1/2}({+80}Br isotope): 1972Co26, 1968Re04, 1957Ki21,
80SE2c 1948Wa13, 1939Se03, 1937Sn02, 1935Am01. 1984Ke14 deals with methodology
80SE3c of T{-1/2} measurement
80SE c Production of {+80}Br (in addition to above references):
80SE2c 1947Se33, 1936Al01
80SE cE Feedings to {+80}Kr g.s. and {+80}Se g.s. determined from
80SE2cE decay scheme and from I|b{++}/I|b{+-}=0.028 {I2} (1951La08),
80SE3cE I(|e+|b{++})/I|b{+-}=0.090 {I2} (1950Re51), and
80SE4cE I|g(616|g)/I|b{++}=2.58 {I10} (1962Tr03). 1969Ka06 also deduce these
80SE5cE feedings from I|b{+-}/I|b{++} and I|g(616|g)/I|b{++} ratios but give
80SExcE no uncertainties.
80SE cG {+80}Br decays by |b{+-} and by |e,|b{++}. The following
80SE2cG experimental ratios aid in normalization of decay schemes:
80SE3cG I(|e+|b{++})/I|b{+-}=0.090 {I2} (1950Re51, mass spectrometer data);
80SE4cG I|b{++}/I|b{+-}=0.028 {I2} (1951La08, scin). Others: 0.037 (1951Mi16),
80SE5cG 0.040 {I5} (1954Li19), 0.031 (1969Ka06);
80SE6cG I|g(616|g)/I|b{++}=2.58 {I10} (1962Tr03 scin). Other: 3.0 {I7}
80SExcG (1953Sc71)
80SE cG |g|g data obtained by 1969Ka06 and 1967Ra12 (scin)
80SE cG E(A)$Reported by 1967Ra12 only. Assignment to {+80}Se uncertain
80SE cG E(B)$Reported by 1970Do02 only. Assignment to {+80}Se uncertain
80SE cG E$Weighted average of 1969Ka06, 1967Ra12, 1970Do02
80SE cG RI$Average of 1969Ka06 and 1967Ra12. Relative to I|g(616|g in
80SExcG {+80}Kr)=100
80SE cL J$From 'adopted levels'
80BR P 0 1+ 17.68 M 2 1870.5 3
80SE N 0.81 7 0.083 2 12.05
80SE cN NR${+80}Br decays by |b{+-} and by |e,|b{++}. Normalization
80SE2cN factors have been deduced from the following observations:
80SE3cN I(|e+|b{++})/I|b{+-}=0.090 {I2} (1950Re51,mag spectrometer
80SE4cN measurement); I|b{++}/I|b{+-}=0.028 {I2} (1951La08);
80SE5cN I|g(616|g)/I|b{++}=2.58 {I10} (1962Tr03). In |e decay |b{++} feeding
80SExcN to excited levels in {+80}Se is negligible
80SE PN 4
80SE G 677.0 10 0.12 4 A ?
80SE G 687.4 10 0.18 5 A ?
80SE G 1338.5 8 B ?
80SE L 0.0 0+
80SE E 1882 6 2.2 2 4.9 2 4.67 5 7.1 2
80SES E EAV= 368.2 10$CK= 0.6106 16$CL= 0.06983 18$CM+= 0.01367 4$
80SE cE E$from weighted average of E|b+=868 {I7} (1951La08), 862 {I10}
80SE2cE (1954Li19), 850 {I7} (1969Ka06)
80SE L 665.8 2 2+
80SE E 1.1 1 4.94 5 1.1 1
80SES E EAV= 84.3 9$CK= 0.8778 $CL= 0.10106 $CM+=0.019798 $
80SE G 665.8 2 16.1 13 C
80SE L 1450 2+ ?
80SE E 0.02 LE 5.7 GT 0.02 LE
80SES E CK= 0.8751 $CL= 0.10432 $CM+=0.020527 $
80SE G 788 3 0.2 LE ?
80SE L 1478.0 16 0+
80SE cL J$from (812|g)(665|g)(|q) (1967Ra12)
80SE E 0.05 2 5.3 3 0.05 2
80SES E CK= 0.8747 $CL= 0.10468 $CM+=0.020607 $
80SE G 812.2 15 0.6 2 C
80SE cG (812|g)(665|g)(|q): A{-2}=0.29 {I13}, A{-4}=1.32 {I37}
80SExcG (1967Ra12)