ADOPTED LEVELS: TENTATIVE for 216Hg
Author: C. Morse | Citation: Nucl. Data Sheets 209, 409 (2026) | Cutoff date: 5-Aug-2025
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6050 keV SY | S(n)= 4261 keV SY | ||||
| Reference: 2021Wa16 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0 | 0+ | % β- = 100 % β-n = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | % β- = 100 % β-n = ? | The compilation 2020Li32 recommends T1/2>300 ns, referencing 2010Al24. Presumably this is based on the flight-time of the isotopes through the FRS, but this value does not appear to be reported in 2010Al24. E(level): The compilation 2020Li32 recommends T1/2>300 ns, referencing 2010Al24. Presumably this is based on the flight-time of the isotopes through the FRS, but this value does not appear to be reported in 2010Al24. |
2010Al24: 216Hg was produced by fragmentation of a 1α GeV 238U beam on a 2.5 g/cm2 beryllium target at GSI. The resulting fragmentation products were identified using the Fragment Separator (FRS) by measuring their magnetic rigidity, time-of-flight, and energy loss. Three or four events corresponding to 216Hg are visible in the corresponding particle-identification plot. This identification is treated as tentative, however, due to the following comment in the text of 2010Al24: "Random background cannot be fully excluded; therefore, one should take with caution the identifications of 217Tl and 216Hg because the observed events do not seem to properly scatter around the expected values of mass and atomic number. "
Q-value: ΔQ(β-)=500, ΔS(n)=565 (2021Wa16)
Q-value: S(2n)=6993 syst 565, Q(β-n)=2819 syst 500 (2021Wa16)