ADOPTED LEVELS for 219Pa
Authors: Balraj Singh Et Al., | Citation: Nucl. Data Sheets 175, 1 (2021) | Cutoff date: 19-May-2021
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-4710 keV 70 | S(n)= 8140 keV 70 | S(p)= 1070 keV 70 | Q(α)= 10130 keV 70 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 223Np α decay (2.2 μs) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) |
| 0 | A | 9/2- | 54 ns 10 % α = 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 9/2- | 54 ns 10 % α = 100 | %ε+%β+≈5×10-9 (1973Ta30, theory); 5.4×10-8 (2019Mo01, theory). E(level): %ε+%β+≈5×10-9 (1973Ta30, theory); 5.4×10-8 (2019Mo01, theory). |
219Pa activity was produced by 204Pb(19F,4n), E=100 MeV. 1987FaZS: assignment to 219Pa based on excitation functions, and on the systematics of α-particle energies and half-lives for other Pa isotopes.
2001Ni06: 219Pa formed in Ce(82Se,X),E(c.m.)=215-253 MeV at JAERI accelerator facility
2005Li17: 219Pa formed in 9Be(238U,X),E=1 GeV/nucleon at GSI facility
2017Su18: 219Pa obtained from 223Np α decay, the latter produced in 187Re(40Ar,4n),E=188 MeV, beam from the Sector-focusing cyclotron (SFC) of HIRFL-Lanzhou facility. Target=460 μg/cm2 thick sputtered on 80 μg/cm2 thick carbon foils. Evaporation residues were separated using the recoil separator SHANS, and implanted into a 300-μm double-sided silicon strip detector (DSSSD). Measured Eα, and half-life of 219Pa decay. FWHM=22-30 keV for Eα=7 MeV.
Theoretical calculations: 22 primary references in the NSR database (www.nndc.bnl.gov/nsr), one related to structure calculations, and 21 to radioactivity
Q-value: S(2n)=14610 70, S(2p)=4700 70, Q(εp)=440 90 (2021Wa16)