ADOPTED LEVELS, GAMMAS for 81Zn
Author: M. Shamsuzzoha Basunia | Citation: Nucl. Data Sheets 199, 271 (2025) | Cutoff date: 1-Sep-2024
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=11428 keV 6 | S(n)= 2622 keV 6 | S(p)= 16810 keV SY | Q(α)= -11270 keV SY | ||
| Reference: 2021WA16 |
| References: | |||
| A | 1H(82Ga,2pγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) |
| 0 | A | (1/2+,5/2+) | 300 ms 4 % β- = 100 % β-n = 23 4 | ||
| 938 13 ? | A | 938 13 | 100 | ||
| 1235 17 ? | A | 1235 17 | 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (1/2+,5/2+) | 300 ms 4 % β- = 100 % β-n = 23 4 | %β-n from 2020Pa26 [based on the measurements of 81Zn decay chain using %β-n(81Ga)=11.9 % 7 (2008Ba34), %β-n(81Ga)=11.8 % 8 in this evaluation]. Other %β-n: 10 3 (2010Pa33 - considering the 20% β branch unaccounted by authors, otherwise 12 4 in 2010Pa33, also 2009Gr06), 30 13 (2010Ho12), and 7.5 30 (1991Kr15), 2005KoZU estimate %β-n(81Zn)>10 from 80Ga in 81Zn decay spectrum. E(level): %β-n from 2020Pa26 [based on the measurements of 81Zn decay chain using %β-n(81Ga)=11.9 % 7 (2008Ba34), %β-n(81Ga)=11.8 % 8 in this evaluation]. Other %β-n: 10 3 (2010Pa33 - considering the 20% β branch unaccounted by authors, otherwise 12 4 in 2010Pa33, also 2009Gr06), 30 13 (2010Ho12), and 7.5 30 (1991Kr15), 2005KoZU estimate %β-n(81Zn)>10 from 80Ga in 81Zn decay spectrum. |
Production: 238UC-graphite + p, E(p)=600 MeV, mass separation; large-volume HPGe γ detector, 4π long detector for neutrons, pulsed beam; measured β-n growth and decay curves; determined T1/2 and %β-n (1991Kr15).
Q-value: ΔS(p)=300, ΔQ(α)=400 (syst,2021Wa16)
Q-value: S(2n)=8910 6, S(2p)=32620 500 (syst), Q(β-n)=4953 6 (2021Wa16)