ADOPTED LEVELS, GAMMAS for 199At
Author: Balraj Singh | Citation: Nucl. Data Sheets 108, 79 (2007) | Cutoff date: 15-Oct-2006
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-7.32×103 keV 7 | S(n)= 1.017×104 keV SY | S(p)= 639 keV 19 | Q(α)= 6777.2 keV 12 | ||
Reference: 2012WA38 |
References: | |||
A | 203Fr α decay (0.549 S) | B | 203Fr α decay (60 MS):? |
C | (HI,xnγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) |
0 | A C | (9/2-) | 7.03 s 15 % ε = 10 5 % α = 90 5 | |
0+X? | B | (1/2+) | ||
573 | C | (13/2+) | 0.58 µs 13 | 573 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0 | (9/2-) | 7.03 s 15 % ε = 10 5 % α = 90 5 | Branching from 1980Ew03 (%α given as 92 +3-8). |
199At first identified by 1967Tr06 in 185Re(20Ne,6n) and 187Re(20Ne,8N) reactions at E=100-200 MeV
Discussions on nuclear structure effects on α anisotropy: 2002De24, 1996Sc35, 1995Ro39, 1992Be52, 1988Be44, 1988Wo11, 1986Wo03
Mass measurement; mass mapping: 1999Sc46, 2002No01
Q-value: Note: Current evaluation has used the following Q record -7300 80 10220 70 630 50 6780 50 2003Au03
Q-value: Q(εp)=3260 60 (2003Au03)