ADOPTED LEVELS, GAMMAS for 90Se
Authors: S. K. Basu, E.A. Mccutchan | Citation: Nucl. Data Sheets 165, 1 (2020) | Cutoff date: 1-Mar-2020
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=8.20×103 keV 33 | S(n)= 4.88×103 keV 33 | S(p)= 16290 keV SY | Q(α)= -8.83×103 keV 55 | ||
| Reference: 2017WA10 |
| References: | |||
| A | 1H(91Br,2pγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 0 | A | 0+ | 195 ms +95-65 % β- = 100 % β-n = ? | ||||
| 547 8 | A | (2+) | 548 9 | 100 | 0 | 0+ | |
| 964 9 | A | (2+) | 419 8 960 15 | 30 100 | 547 0 | (2+) 0+ | |
| 1238 11 | A | (4+) | 691 7 | 100 | 547 | (2+) | |
| 1627 9 | A | 663? 1075 24 | | 964 547 | (2+) (2+) | ||
E(level): From a least-squares fit to Eγ, by evaluators.
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | 0+ | 195 ms +95-65 % β- = 100 % β-n = ? | Calculated %β-n=1 (2019Mo01), 2.6 (2012Mc04). |
1994Be24: 208Pb(238U,X), E=750 MeV/nucleon. Fragment recoil separator (FRS) at GSI facility. Measured σ=240 μb with 409 counts assigned to 90Se
1998Do08: 208Pb(238U,X), E=750 MeV/nucleon. Fragment recoil separator (FRS) at GSI facility. Fragments separated by magnetic rigidity, mass and total kinetic energy distribution. Measured (fragment)(β and/or γ) coincidence. Tentative evidence for the formation of 90Se.
2012Qu01: 9Be(136Xe,X), E=120 MeV/nucleon. A1900 fragment separator at the NSCL Coupled Cyclotron Facility. Fragments were separated using the Bρ-ΔE-Bρ technique. Beta decays measured in the NSCL Beta Counting System (BCS) consisting of four silicon PIN detectors, a double sided silicon strip detector (DSSD), and a single sided silicon strip detector (SSSD). Measured energy loss, total kinetic energy (TKE), time of flight, and β(t).
Q-value: ΔS(p)=330 (2017Wa10)
Q-value: S(2n)=8060 330; S(2p)=30240 syst 520; Q(β-n)=4400 330 (2017Wa10)