ADOPTED LEVELS, GAMMAS for 208Hg
Authors: B. Singh, K. Zuber | Citation: ENSDF | Cutoff date: 12-APR-2010
Author: M. J. Martin | Citation: Nucl. Data Sheets 108,1583 (2007) | Cutoff date: 1-Jun-2007
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=3.48×103 keV 3 | S(n)= 4.85×103 keV 5 | S(p)= 9.7×103 keV SY | Q(α)= 2.23×103 keV SY | ||
| Reference: 2012WA38 |
| References: | |||
| A | 9Be(238U,xγ):ISOMER | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0 | A | 0+ | 41 m +5-4 % β- = 100 | |||||
| 669.0 5 | A | (2+) | 669.0 | 100 | 0 | 0+ | ||
| 1093.9 7 | A | (4+) | 424.9 | 100 | 669.0 | (2+) | ||
| 1296.9 9 | A | (6+) | 203.0 | 100 | (E2) | 1093.9 | (4+) | |
| 1296.9+X | A | (8+) | 99 ns 14 % IT = 100 | X | | 1296.9 | (6+) | |
E(level): From Eγ’s, assuming Δ(Eγ)=0.5 KeV for each γ ray
Jπ(level): From shell-model predictions and probable yrast sequence
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
| 1296.9 | (6+) | 203.0 | (E2) | 0.37 | α=0.37 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 41 m +5-4 % β- = 100 | E(level): Dominant configuration=νg9/22 (2009Al29). |
| 669.0 | (2+) | Configuration=νg9/222+ with mixing of π(s1/2d3/2) (2009Al29). | |
| 1093.9 | (4+) | E(level): Dominant configuration=νg9/22 (2009Al29). | |
| 1296.9 | (6+) | E(level): Dominant configuration=νg9/22 (2009Al29). | |
| 1296.9+X | (8+) | 99 ns 14 % IT = 100 | E(level): Dominant configuration=νg9/22 (2009Al29). |
| E(level) | E(gamma) | Comments |
| 1296.9 | 203.0 | M(γ): from α(exp) deduced from intensity balance, assuming cascade of E2 transitions (2009Al29) |
| 1296.9+X | X | E(γ): x<83 keV (binding energy of the K electron in Hg), as suggested by the observed low intensity of Hg Kα x rays (2009Al29) |
Assignment: Pb(12C,X). E=360 MeV. Hg separation, p 2614γ (1994Zh02)
Also produced in Pb(18O,X), E=600 MeV (σ=5.0 μb 18) (2004Zh28). Other papers by the same group: 2003Zh06, 2003Zh19, 1998Zh22, 1997Zh18, 1993Zh07, 1993Zh35.
Measured mass excess=-13265 keV 31 (2009Ch08, Schottky mass spectrometry)
Nuclear structure calculations for Hg isotopes: 1999Sh04
Q-value: Note: Current evaluation has used the following Q record 3485 31 5.12×103 15 9810 calc 2120 calc