ADOPTED LEVELS for 192Bi
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 113, 1871 (2012) | Cutoff date: 15-Jun-2012
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-5.46×103 keV 4 | S(n)= 8.37×103 keV 4 | S(p)= 5.9×102 keV 5 | Q(α)= 6376 keV 5 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 196At α decay | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0.0 | A | (3+) | 34.6 s 9 % ε = 88 5 % α = 12 5 |
| 147 34 | (10-) | 39.6 s 4 % ε = 90 3 % α = 10 3 |
Jπ(level): From 1991Va04 (assignments based on degree of hindrance of α groups to levels with known structure in 188Tl and on systematics of neighboring odd-odd Bi isotopes).
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (3+) | 34.6 s 9 % ε = 88 5 % α = 12 5 | %α: from αγ coin assuming 30% 10 of 192Bi ε decays from a similar source (studied earlier by several of the same authors) proceeded via the low-spin isomer (1991Va04). Other: ≈20% (1974Le02). E(level): %α: from αγ coin assuming 30% 10 of 192Bi ε decays from a similar source (studied earlier by several of the same authors) proceeded via the low-spin isomer (1991Va04). Other: ≈20% (1974Le02). |
| 147 | (10-) | 39.6 s 4 % ε = 90 3 % α = 10 3 | %α: from αγ coin assuming 30% 10 of 192Bi ε decays from a similar source (studied earlier by several of the same authors) proceeded via the low-spin isomer (1991Va04). E(level): %α: from αγ coin assuming 30% 10 of 192Bi ε decays from a similar source (studied earlier by several of the same authors) proceeded via the low-spin isomer (1991Va04). |
Identification: mass separation of products from 181Ta(20Ne,xn) (1970Ta14); excitation functions for 203Tl(3He,xn) and 159Tb(40Ar,xn) (1974Le02).
The activity (T1/2=74 s 5, Eα=5892 keV 5), assigned to 192Bi or 196Bi by 1967Tr06, was reassigned to 193Bi by 1970Ta14; the activity (T1/2=38 s 5, Eα=6050 keV 5), assigned to 191Bi or 195Bi by 1967Tr06, probably arises from 192Bi.
Theory:
Calculations using Coulomb and proximity potential model: T1/2, and HF for α decay from g.s. and (10-) isomer (2011Sa10).
Q-value: Note: Current evaluation has used the following Q record
Q-value: Values are from 2011AuZZ (cf. 5470 40, 8380 30, 590 50 and 6376 5, respectively, from 2003Au03).
Q-value: Q(α): both 192Bi (3+) and 188Tl (2-) assumed to be ground states for relevant nuclides.