ADOPTED LEVELS for 244Es
Author: C.D. Nesaraja | Citation: Nucl. Data Sheets 146, 387 (2017) | Cutoff date: 31-Aug-2017
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-2.94×103 keV SY | S(n)= 6.79×103 keV SY | S(p)= 2.25×103 keV SY | Q(α)= 7.94×103 keV SY | ||
| Reference: 2017WA10 |
| References: | |||
| A | 248Md α decay | ||
| E(level) (keV) | XREF | T1/2(level) |
| 0.0 | A | 37 s 4 % ε = 96 +2-3 % α = 4 +3-2 |
| 200 Syst. | A | |
| 240 Syst. | A |
E(level): Level energies are calculated from Qα(248Md)=8700 150 (syst, 2017Wa10) and the measured Eα’s
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 37 s 4 % ε = 96 +2-3 % α = 4 +3-2 | Alpha and electron capture branchings were derived by 1973Es02 from α counts from 244Es and from 244Cf decays, assuming that 244Cf decays 100% by α. E(level): Alpha and electron capture branchings were derived by 1973Es02 from α counts from 244Es and from 244Cf decays, assuming that 244Cf decays 100% by α. |
Identification:
1973Es02: 244Es produced by 233U(15N,4n) reaction at the Berkeley, HILAC. The isotope was studied using α particle spectroscopy consisting of a series of Si-Au surface barrier detectors
Theoretical studies:
2017So11: Calculated α decay half-life
2015Gh03: Calculated β-delayed fission half-life
2009Mo18: Calculated fission barrier heights
1997Mo25: Calculated partial half-lives for α and β decays
1995Mo29: Calculated deformations parameters
Q-value: ΔQ-=-270, ΔSN=280, ΔSP=210, ΔQA=100 (syst, 2017Wa10)