ADOPTED LEVELS for 212Tl
Authors: K. Auranen and E.A. Mccutchan | Citation: Nucl. Data Sheets 168, 117 (2020) | Cutoff date: 1-Aug-2020
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6000 keV SY | S(n)= 3540 keV SY | S(p)= 8220 keV SY | Q(α)= 2130 keV SY | ||
| Reference: 2017WA10 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | (5+) | 30.9 s 80 % β- = 100 % β-n = 1.8 18 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
1998Pf02: 212Tl produced by fragmentation of a 1 GeV/nucleon beam of 238U on a beryllium target. The ions of 212Tl were separated and analyzed with the GSI FRagment Separator (FRS)
2010Al24: 212Tl nuclide produced in 9Be(238U,X) reaction with E(238U)=1 GeV/nucleon at GSI facility. Fragments were separated with the high resolving power magnetic spectrometer FRagment Separator (FRS) and identified based on measurements of magnetic rigidity, velocity, time-of-flight, energy loss and atomic number of the fragments using two plastic scintillators and two multisampling ionization chambers.
2012Be28: see 2010Al24 above for method of production at GSI facility; deduced T1/2.
2017Ca12,2016Ca25: 212Tl produced in 9Be(238U,F) reaction with E(238U)=1 GeV/nucleon and separated using the GSI FRagment Separator (FRS) using the Bρ-ΔE-Bρ technique. Ions were implanted into the SIMBA array consisting of a stack of double-sided silicon strip detectors. Measured β, β(t), βn using the BELEN array consisting of 30 3He tubes within polyethylene moderator and shielding. Preliminary results reported in 2016DoZZ.
Q-value: ΔQ(β-)=200; ΔS(n)=210; ΔS(p)=280; ΔQ(α)=360 (2017Wa10)
Q-value: S(2n)=8450 (syst) 200; S(2p)=18460 (syst) 450; Q(β-n)=870 (syst) 200 (2017Wa10).