ADOPTED LEVELS for 49Ar
Author: T. W. Burrows | Citation: Nucl. Data Sheets 109, 1879 (2008) | Cutoff date: 14-Jul-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=1.28×104 keV SY | S(n)= 2.5×103 keV SY | S(p)= 2.01×104 keV SY | Q(α)= -1.53×104 keV SY | ||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0.0 | 170 ms 50 % β- = 100 % β-n = 65 20 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
2003We09: U(p,F) E=1.4 GeV. Isotopes extracted, mass separated, and implanted into an aluminized mylar tape; implantation point in center of cylindrical 4π neutron long counter consisting of 12 parallel-coupled 3He pc’s embedded in a paraffin moderator. β-’s detected by a 1.5-mm plastic detector. Measured β-(t), n(t), and β-n(t). Analysis of time spectra restricted to data from a doubly charged 49Ar beam; beam gate set to 200 ms after every proton pulse and a 20 ms delay; 3 h measurement (1320 proton pulses on target).
Other: 1988GuZV
Q-value: Note: Current evaluation has used the following Q record 12170 SY2500 SY20730 syst-17030 syst 2003Au03
Q-value: Q(β-n)=3.91 MeV 30 (2003Au03. Systematics)