ADOPTED LEVELS for 217Pa
Author: Balraj Singh | Citation: Nucl. Data Sheets 147, 382 (2018) | Cutoff date: 1-DEC-2017
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-5910 keV SY | S(n)= 8800 keV 60 | S(p)= 519 keV 20 | Q(α)= 8489 keV 4 | ||
| Reference: 2017WA10 |
| E(level) (keV) | Jπ(level) | T1/2(level) |
| 0 | (9/2-) | 3.8 ms 2 % α = 100 |
| 1854 7 | (23/2-) | 1.08 ms 3 % IT = 27 4 % α = 73 4 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (9/2-) | 3.8 ms 2 % α = 100 | Only the α decay was observed. Gross β decay theory calculations of 1973Ta30 and theoretical calculations of 1997Mo25 give T1/2(ε)≈300 sec and 97 sec, respectively which correspond to ε decay branch of ≈0.0012% and 0.0036%, respectively. E(level): Only the α decay was observed. Gross β decay theory calculations of 1973Ta30 and theoretical calculations of 1997Mo25 give T1/2(ε)≈300 sec and 97 sec, respectively which correspond to ε decay branch of ≈0.0012% and 0.0036%, respectively. |
217Pa evaluated by B. Singh
Production and identification:
1968Va18: 203Tl(20Ne,6n),206Pb(20Ne,p8n)
1979Sc09: 181Ta(40Ar,4n), excitation function, parent of 213Ac
1997An02: 170Er(51V,4n), 197Au(24Mg,4n), excitation function
1998Ik01: 194Pt(28Si,p4n), Recoil Mass Separator
2002He29: 181Ta(40Ar,4n) parent of 213Ac; delayed αα coin
Q-value: Estimated uncertainty=70 for Q(β-) (2017Wa10)
Q-value: S(2n)=16940 70, S(2p)=3540 20, Q(εp)=1635 19 (2017Wa10)