ADOPTED LEVELS for 210Th
Author: M. Shamsuzzoha Basunia | Citation: Nucl. Data Sheets 121, 561 (2014) | Cutoff date: 31-Mar-2014
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 10550 keV 90 | S(p)= 2070 keV 50 | Q(α)= 8069 keV 6 | |||
| Reference: 2012WA38 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | 0+ | 16 ms 4 % ε = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 16 ms 4 % ε = ? | ε+β+ decay has not been observed. Theoretical estimate %ε+%β+≈1 (1997Mo25). E(level): ε+β+ decay has not been observed. Theoretical estimate %ε+%β+≈1 (1997Mo25). |
2010He25: 210Th was produced from 150Sm(64Ni,4n) reaction, E=294 MeV; 95.6% enriched target of 147SmF3 (thickness - 327-546 μg/cm2) Evaporation residues were velocity filtered by SHIP and implanted into a 16-strip positron-sensitive silicon detector (PSSD), six silicon box detectors were mounted in an open box geometry upstream from the PSSD to measure the energy of α particles which escaped from the PSSD in the backward direction. 210Th was identified based on the observation of energy, position, and time correlated α-decay chains. α clover Ge detector was also used for α-γ or α(x ray) coincidence measurements with ΔT(α-γ)|<5 μs. Measured half-life, production cross section.
1995Uu01: 210Th activity was produced from 181Ta(35Cl,6n) reaction, E=191, 199 MeV, and was separated using a gas-filled magnetic recoil separator. 210Th was identified on the basis of correlated alpha-decay from the daughter and granddaughter nuclei 206Ra and 202Rn, respectively.
1995Le41: 210Th activity was produced from 181Ta(35Cl,6n) reaction, E=193 MeV, and was separated using a gas-filled recoil separator. 210Th was identified on the basis of correlated alpha-decay from the daughter nucleus 206Ra. Others: 2002No01, 1995Le15, 1987Po06.