ADOPTED LEVELS for 234Ra
Author: S. Ota | Citation: Nucl. Data Sheets 207, 351 (2026) | Cutoff date: 1-Dec-2023
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=2089 keV 16 | S(n)= 5475 keV 12 | S(p)= 9278 keV 21 | Q(α)= 2336 keV SY | ||
| Reference: 2021WA16 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0.0 | 0+ | 30 s 10 % β- = 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 0+ | 30 s 10 % β- = 100 | No fission fragments were detected (1992MeZV). An upper limit of 1×10-4% for β-delayed SF decay branch was given by 1992MeZV. E(level): No fission fragments were detected (1992MeZV). An upper limit of 1×10-4% for β-delayed SF decay branch was given by 1992MeZV. |
1992Bo44: 238U(1 GeV p,X). The reaction products were ionized, accelerated and transported to moving collectors (tape or rotating wheel), passing through a magnetic analyzer. 234Ra were identified by detecting β- from daughter 234Ac with a HPGe detector (16 mm diameter) around the collector and analyzing the time behavior. High energy part of the β- spectrum was used for determining the lifetime. Similar results by the same group are reported in 1992MeZV, 1993MeZW, 1990BeZB, 1990MeZQ
Q-value: ΔQ(α)=200 (2021Wa16)
Q-value: S(2n)=9709 12 (2021Wa16)