ADOPTED LEVELS for 81Nb
Author: Coral M. Baglin | Citation: Nucl. Data Sheets 109, 2257 (2008) | Cutoff date: 15-Aug-2008
Full ENSDF file | Adopted Levels (PDF version)
| S(p)= -1.3×103 keV SY | Q(α)= -2.6×103 keV SY | ||||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0.0 | < 200 ns % ε = ? |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
Production: fragmentation of 112 GeV 112Sn beam incident on a Be target; 0|’ magnetic spectrometer for determination of fragment trajectories (FWHM=0.32 for α, 0.23 for Z) prior to implantation into stack of 4 double-sided Si detectors with stacks of seven-fold segmented Si detectors on either side for β detection and surrounded by a segmented NaI detector and a Ge clover detector; measured correlation between implants and daughters, T1/2 (2000StZU, 2001Ki13). Also, a few events (≈4 per 1014 106Cd ions), apparently corresponding to 81Nb, were observed in Ni+106Cd, E(106Cd)=60 MeV/α using projectile fragment separator (fig. 1(b), 1994He28); however, the attribution of those events to contamination from neighboring peaks in the Z and Q spectra could not be ruled out (1994He28).
Q-value: Note: Current evaluation has used the following Q record -750 syst -3.0×103 syst 2003Au03
Q-value: ΔS(p)=150, ΔQ(α)=1500 (2003Au03).
Q-value: Q(ε-p)=6.5 MeV 15 from systematics (2003Au03).