ADOPTED LEVELS for 225Np
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 20-DEC-2015
Authors: A. K. Jain , R. Raut , J. K. Tuli | Citation: Nucl. Data Sheets 110, 1409 (2009) | Cutoff date: 1-Dec-2008
Full ENSDF file | Adopted Levels (PDF version)
| S(n)= 8360 keV SY | S(p)= 1420 keV 80 | Q(α)= 8790 keV 50 | |||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0 | 3.6 ms +76-27 % ε = ? % α ≈ 100 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 3.6 ms +76-27 % ε = ? % α ≈ 100 | Eα=8630 keV 20 from 225Np to 221Pa decay (1994Ye08); only one α decay line is reported. |
1994Ye08: 225Np produced and identified in 236U(22Ne,xn), E=124 MeV reaction; measured Eα, Iα
2015De22: 225Np nuclide formed in the α decay of 229Am, and in the decay chain of 233Bk; both 233Bk and 229Am produced and identified in deep-inelastic multinucleon transfer reaction 248Cm(48Ca,X),E(48Ca)=270 MeV from UNILAC at GSI, followed by separation of reaction products using velocity filter SHIP at GSI, and implanted in position-sensitive silicon strip detector. Measured energy, position, time of the implanted nuclei, Eα correlated with reaction products
Q-value: Estimated uncertainty=210 for S(n) (2012Wa38)
Q-value: S(2n)=15150 210 (syst), S(2p)=5310 100 Q(εp)=440 70 (2012Wa38)