ADOPTED LEVELS, GAMMAS for 61Ga
Authors: Kazimierz Zuber, Balraj Singh | Citation: Nucl. Data Sheets 125, 1 (2015) | Cutoff date: 25-Jan-2015
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-13410 keV SY | S(n)= 15420 keV SY | S(p)= 250 keV 40 | Q(α)= -2250 keV 40 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 61Ge ε decay (44 MS) | B | 24Mg(40Ca,p2nγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | AB | 3/2- | 167 ms 3 % ε = 100 % εp < 0.25 | |||||
| 220 1 ? | B | (1/2-) | 220 1 ? | 100 | 0.0 | 3/2- | ||
| 271 1 | B | (5/2-) | 271 1 | 100 | D+Q | 0.0 | 3/2- | |
| 1397 1 | B | (9/2-) | 1126 1 | 100 | 271 | (5/2-) | ||
| 2903 2 ? | B | (13/2-) | 1506 1 ? | 100 | 1397 | (9/2-) | ||
| 3420 50 | A | (3/2-) | % p = 100 | |||||
E(level): From Eγ data, except for the 3420 level which is from ε decay
Jπ(level): From mirror symmetry arguments with 61Zn nuclide (2005An03)
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - γ-cascade based on 5/2- | |||||||
| 271 1 | (5/2-) | ||||||
| 1397 1 | (9/2-) | 1126 1 | 100 | 271 | (5/2-) | ||
| 2903 2 | (13/2-) | 1506 1 ? | 100 | 1397 | (9/2-) | ||
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 271 | (5/2-) | E(level): γ-cascade based on 5/2-. | |
| 1397 | (9/2-) | E(level): γ-cascade based on 5/2-. | |
| 2903 | (13/2-) | E(level): γ-cascade based on 5/2-. |
1987Ho01 (also:1979ViZY,1978ViZT thesis): first evidence of population of excited state in 61Ga from 61Ge decay
1991Mo10: 61Ga first identified in the bombardment of enriched 58Ni target by a 65 MeV/nucleon 78Kr beam followed by A-1200 mass separator at NSCL facility .
1993Wi18 (also 1993Wi03): 61Ga produced in fragmentation of 78Kr beam at 75 MeV/nucleon with 58Ni target using A1200 fragment separator at NSCL facility. Measured half-life
1999Oi01: 61Ga produced in Si(36Ar,X) reaction at E=121 MeV at GSI facility
2002We07: 61Ga produced in ZrO(p,X) using RILIS source at ISOLDE- CERN facility. Measured half-life and Q(ε) value
2002Lo13 (also 2002Bl17): 9Be(78Kr,X) E=73 MeV/nucleon; LISE3 spectrometer at GANIL facility. Measured half-life from timing of correlated beta-delayed protons and implanted nuclei.
Structure calculations: 2001Pa02
2005An03 (also 2005Ru06,2005Ek01): 24Mg(40Ca,p2nγ) E=104 MeV. Measured prompt γ rays in the yrast structure
Mass measurement using storage ring CSRe in Lanzhou: 2011Tu09
Q-value: Estimated uncertainties (2012Wa38): 300 for Q(β-), 200 for S(n).
Q-value: Q(εp)=3920 40, S(2n)=29310 170 (syst), S(2p)=5350 40 (2012Wa38)