ADOPTED LEVELS for 260Bh
Author: B. Singh | Citation: ENSDF | Cutoff date: 15-MAR-2016
Author: Y. A. Akovali | Citation: Nucl. Data Sheets 87, 301 (1999) | Cutoff date: 1-Oct-1998
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 6960 keV CA | S(p)= 520 keV SY | Q(α)= 10400 keV 50 | |||
| Reference: 2012WA38,1997MO25 |
| E(level) (keV) | T1/2(level) |
| 0 | 35 ms +19-9 % α ≈ 100 % ε < 18 % SF < 18 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 35 ms +19-9 % α ≈ 100 % ε < 18 % SF < 18 | No direct SF decay of 260Bh or from 260Sg (possible ε decay of 260Bh) was observed. Only a limit of <18% is assigned at 84% confidence level for SF and ε decay branches. E(level): No direct SF decay of 260Bh or from 260Sg (possible ε decay of 260Bh) was observed. Only a limit of <18% is assigned at 84% confidence level for SF and ε decay branches. |
1983OgZX: 260Bh produced in 206Pb(55Mn,n),E=310 MeV at JINR; parent of 256Db; measured Eα
2008Ne01: production of 260Bh in 209Bi(52Cr,n) reaction; 256Db, 252Lr and 248Md through successive α-decay chain, and 256Rf and 248Fm through ε decays. E(52Cr12+)=257.0 MeV beam provided by 88-Inch Cyclotron at LBNL. The nuclei were analyzed using Berkeley Gas-Filled Separator. Detectors: α focal plan Si strip detector and a Si-strip detector array, with a resolution of FWHM=55 keV.
Following eight correlated decay chains were detected by 2008Ne01
Q-value: S(n) from theory (1997Mo25); S(p) and Q(α) from 2012Wa38
Q-value: Estimated uncertainty=270 for S(p) (2012Wa38)
Q-value: S(2n)=15670 (theory,1997Mo25). S(2p)=3050 390, Q(εp)=4040 250 (syst,2012Wa38)