ADOPTED LEVELS, GAMMAS for 51Ca
Authors: Wang Jimin and Huang Xiaolong | Citation: Nucl. Data Sheets 144, 1 (2017) | Cutoff date: 1-Mar-2016
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6896 keV 20 | S(n)= 4814.7 keV 17 | S(p)= 17893 keV 8 | Q(α)= -13390.9 keV 12 | ||
| Reference: 2017WA10 |
| References: | |||
| A | 51K β- decay (365 MS) | B | 52K β-n decay (110 MS) |
| C | 53K β-2n decay (30 MS) | D | 48Ca(18O,15O), (14C,11C) |
| E | U(p,X) | F | 48Ca(238U,xγ) |
| G | 238U(48Ca,xγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 0.0 | AB DEFG | 3/2(-) | 10.0 s 8 % β- = 100 % β-n = ? | ||||
| 1240 40 | D | ||||||
| 1718.0 10 | B F | (1/2-) | 1718 1 | 100 | 0.0 | 3/2(-) | |
| 1940 40 | D | ||||||
| 2378.06 20 | B FG | (5/2-) | 2378.0 2 | 100 | 0.0 | 3/2(-) | |
| 2934.1 10 | B F | (3/2-) | 2934 1 | 100 | 0.0 | 3/2(-) | |
| 3462.13 20 | AB FG | (7/2-) | 3462.0 2 | 100 | 0.0 | 3/2(-) | |
| 3477.5 23 | F | (5/2-) | 3479 4 | 100 | 0.0 | 3/2(-) | |
| 3500.9 9 | B | 1123 1 3500 2 | 11 2 100 11 | 2378.06 0.0 | (5/2-) 3/2(-) | ||
| 3580 40 | D | ||||||
| 3844.1 3 | FG | (7/2+) | 1466.0 2 | 100 | 2378.06 | (5/2-) | |
| 4040 40 | D | ||||||
| 4155.1 7 | G | (9/2+) | 311.0 6 693.0 6 ? | | 3844.1 3462.13 | (7/2+) (7/2-) | |
| 4320.1 4 | FG | (9/2-) | 476.0 4 843.4 27 1942.0 4 | 1.5 5 100 50 | 3844.1 3477.5 2378.06 | (7/2+) (5/2-) (5/2-) | |
| 4493.1 15 | B | 1559 1 | 100 | 2934.1 | (3/2-) | ||
| 5678 34 | A | ||||||
| 6684 34 | A | ||||||
| 6776 38 | A | ||||||
| 7060 55 | A | ||||||
| 7420 55 | A | ||||||
| 811E1 10 | A | ||||||
| 8360 30 | A | ||||||
| 8620 30 | A | ||||||
| 8820 46 | A | ||||||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 905E1 10 | A | ||||||
| 9330 64 | A | ||||||
| 959E1 12 | A | ||||||
| 9700 64 | A | ||||||
| 982E1 15 | A | ||||||
| 1034E1 13 | A | ||||||
| 1067E1 12 | A | ||||||
| 1089E1 10 | A | ||||||
E(level): For bound states connected by gammas, E(level)’s are from adopted γ radiations, using least-squares fit to data, except as noted. For unbound levels, calculated using S(n) (51Ca)= 4814.4 17 (2017Wa10), the measured energies of delayed neutrons (2006Pe16), taking into account the recoil energy of the final nucleus.
Jπ(level): As proposed in 2008Fo01 based on comparisons of γ-decays with shell-model calculations in 238U(48Ca,xγ), except as noted.
E(γ): Eγ’s are from 51K β-n decay, except as noted.
I(γ): Relative photon branching from each level. Values from 51K β-n decay, except as noted.
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 1718.0 | (1/2-) | XREF: F(1721). | |
| 3462.13 | (7/2-) | XREF: F(3437). |
| E(level) | E(gamma) | Comments |
| 1718.0 | 1718 | E(γ): Other: 1721.0 17 in 48Ca(238U,Xγ) |
| 2378.06 | 2378.0 | E(γ): Others: 2379.0 13 in 48Ca(238U,Xγ), 2377 1 in 51K β-n decay |
| 2934.1 | 2934 | E(γ): Other: 2937 5 in 48Ca(238U,Xγ) |
| 3462.13 | 3462.0 | E(γ): Others: 3437 6 in 48Ca(238U,Xγ), 3460 2 in 51K β-n decay |
| 3844.1 | 1466.0 | E(γ): Other: 1466.3 16 in 48Ca(238U,Xγ), |
| 4320.1 | 476.0 | E(γ): From 238U(48Ca,Xγ) | 1942.0 | E(γ): Other: 1943 6 in 48Ca(238U,Xγ) |