131SN 131IN B- DECAY (0.28 S) 2004Fo06,1984Fo03,1984Fo1906NDS 200612
131SN H TYP=FUL$AUT=YU. KHAZOV, I. MITROPOLSKY, A. RODIONOV$
131SN2 H CIT=NDS 107, 2715 (2006)$CUT=17-Jul-2006$
131SN C 1963Gr13,1966St25,1974Gr29,1981Hu09: measured T1/2
131SN C 1984Fo19,1984Fo03: measured |b's, |b|g-coin, |g's,
131SN2c |g(t), |g|g(t), and |g|g-coin; HPGe, Ge(Li), plastic
131SNxc scin, OSIRIS
131SN c 1995Me16,1999Fo01: measured |b{+-} decay energy,
131SN2c |b|g-coin, Si(Li), HPGe, OSIRIS
131SN c 2004Fo06:{+131}In isotopes produced continuously by fission in the
131SN2c combined target and ion source of OSIRIS mass spectrometer.
131SN3c Measured E|g, I|g, |g|g, E|b, I|b, |b|g-coin using two HPGe
131SN4c spectrometers of 80% and 30% relative efficiencies, and an HPGe diode
131SN5c used as |b spectrometer.
131SN c All data are from 2004Fo06, except as noted. Other: 1980De35
131SN c Coincidences shown on drawing are from 2004Fo06
131SN cG E(B) Attributed solely to g.s. decay based on T{-1/2} (1984Fo19)
131SN cG E(D) Assumed to follow the g.s. decay (2004Fo06)
131SN cG E(E)$May belong to the decay of (1/2-) 0.35 s 131In isomer (2004Fo06)
131SN cG $ The evaluators treat existence and placement of 2192|g as
131SN2CG questionable; in 2004Fo06 that transition is not confirmed
131SN cL J,T From the adopted levels
131SN cL E(A) 1984Fo19 assumed that these states were populated by the
131SN2cL 0.28 s (9/2+) {+131}In |b{+-} decay for simplicity. Some of these
131SN3cL states may be populated in 0.32 s (21/2+) {+131}In |b{+-} decay
131SN4cL and, therefore, would not deexcite directly to the g.s.
131IN P 0.0 (9/2+) 0.28 S 3 9177 18
131SN N 1.0 1.0 1.0
131SN cN NR$data are not sufficient for calculation of normalization, due to
131SN2cN the level scheme is incomplete.
131SN CN BR$%|b{+-}n LE 2.0 {I3} (see comments
131SN2CN for 131IN ADOPTED LEVELS dataset)
131SN PN 1.0 4
131SN L 0.0 (3/2+)
131SN L 0+X 11/2-
131SN CL $ From the |b-spectrum x=69 {I14}; or x=65.1 {I3} from the level
131SN2CL scheme (2004Fo06)
131SN DL E LEVEL ENERGY HELD FIXED IN LEAST-SQUARES ADJUSTMENT
131SN B 20 LT 5.6 GT ?
131SNS B EAV=4155.6 85
131SN L 331.72 10 (1/2+)
131SN G 331.72 10 0.06 LT
131SN cG E,RI$from figure 4 of 2004Fo06; not listed amongst transitions in
131SN2cG table II. See 0/35 s 1/2- {+131}In decay dataset
131SNF G FL=0.0
131SN L 1654.55 8 (5/2+)
131SN G 1322.9 0.06 LT
131SN CG $Possible E2 from 1654.55, d{-1/2} to 331.72 s{-1/2} (2004Fo06)
131SN G 1654.55 10 1.7 2 C
131SNF G FL=0.0
131SN L 2434.17 8 (7/2+)
131SN B 6795 12 90 4.4 C
131SNS B EAV=3014.9 86
131SN cB E from |b|g-coincidence (2004Fo06). Significant |b-feeding
131SN2cB suggests allowed transition.
131SN G 779.64 10 1.7 1 C
131SN G 2192.2 8 0.8 3 ?
131SN CG $ Data from 1984Fo19 and 1984Fo03; not confirmed by 2004Fo06
131SN G 2434.12 10 90 C
131SN cG RI$|DI{-|g}=+2-20. Intensity of the transition represents
131SN2cG a normalization from the decay scheme (2004Fo06).
131SNF G FL=0.0
131SNF G FLAG=B
131SN L 3989.9419 (7/2+)
131SN B 5151 37 3.6 5.3 C
131SNS B EAV=2277.2 86
131SN G 1555.6 5 0.13 3 C
131SN G 3989.9 2 3.5 2
131SNF G FL=0.0
131SNF G FLAG=B
131SN L 4098.8 6 ?
131SN CL $Not supported by 2004Fo06
131SNF L FLAG=A
131SN G 4098.7 6 0.24 6 ?
131SN CG $ According to 2004Fo06, has other intensity and placement, see
131SN2CG 131IN 0.35S decay dataset
131SNF G FL=0.0
131SNF G FLAG=D
131SN L 4262.2 7
131SN B 0.1 6.7
131SNS B EAV=2148.1 86
131SN G 4262.1 7 0.11 2
131SNF G FL=0.0
131SNF G FLAG=D
131SNF G FLAG=E
131SN L 4292.8 12 ?
131SN CL $Not supported by 2004Fo06
131SNF L FLAG=A
131SN G 4292.7 12 0.29 5 ?
131SN CG $Not confirmed by 2004Fo06
131SNF G FL=0.0
131SNF G FLAG=D
131SN L 4352.7 7
131SN B 0.1 6.7
131SNS B EAV=2105.2 86
131SN G 4352.6 7 0.10 2
131SNF G FL=0.0
131SNF G FLAG=D
131SNF G FLAG=E
131SN L 4404.8 4
131SN B 0.3 6.2
131SNS B EAV=2080.6 86
131SN G 2750.0 5 0.11 2 C
131SN G 4404.9 4 0.17 2
131SNF G FL=0.0
131SN L 4487.0820 (7/2+)
131SN B 4745 34 3.4 5.1 C
131SNS B EAV=2041.6 86
131SN G 4487.00 20 2.8 2
131SNF G FL=0.0
131SNF G FLAG=B
131SNF G FLAG=E
131SN L 4770.8 5 ?
131SNF L FLAG=A
131SN B 0.4 6.0
131SNS B EAV=1907.2 86
131SN G 4770.8 5 0.40 5 ?
131SNF G FL=0.0
131SNF G FLAG=D
131SN L 5111.9 7
131SN B 0.1 6.4
131SNS B EAV=1745.9 86
131SN G 2677.7 7 0.06 2 C
131SN L 5215.7 5
131SN B 0.16 6.0
131SNS B EAV=1696.9 85
131SN G 5215.6 5 0.16 4
131SNF G FL=0.0
131SNF G FLAG=D
131SNF G FLAG=E
131SN L 5323.1 20 ?
131SN CL $Not supported by 2004Fo06
131SNF L FLAG=A
131SN G 5323.0 20 0.13 4 ?
131SN CG $Not confirmed by 2004Fo06
131SNF G FL=0.0
131SNF G FLAG=E
131SN L 5412.5 4
131SN B 0.5 5.5
131SNS B EAV=1604.1 85
131SN G 2978.3 3 0.50 5 C
131SN L 5591.115
131SN B 0.1 6.1
131SNS B EAV=1519.9 85
131SN G 3936.5 15 0.05 2 C