ADOPTED LEVELS, GAMMAS for 67Se
Author: Balraj Singh | Citation: ENSDF | Cutoff date: 18-March-2022
Authors: Huo Junde, Huang Xiaolong, J.K. Tuli | Citation: Nucl. Data Sheets 106, 159 (2005) | Cutoff date: 1-Apr-2005
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-14050 keV SY | S(n)= 12990 keV SY | S(p)= 1840 keV 70 | Q(α)= -2080 keV 80 | ||
| Reference: 2021WA16 |
| References: | |||
| A | 40Ca(32S,αnγ) | ||
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
| 0.0 | A | (5/2-) | 133 ms 4 % ε = 100 % εp = 0.5 1 | |||||
| 26.0 17 | A | (3/2-) | ||||||
| 647.0 9 | A | (7/2-) | 647 | | 0.0 | (5/2-) | ||
| 1061.0 13 | A | (7/2-) | 1035 1061 | | 26.0 0.0 | (3/2-) (5/2-) | ||
| 1364.0 9 | A | (9/2+) | 1.04 ns 42 | 303 717 1364 | 12 7 100 21 18 10 | [E1] (E1+M2) [M2] | 1061.0 647.0 0.0 | (7/2-) (7/2-) (5/2-) |
| 2224.0 13 | A | (11/2+) | 860 | | 1364.0 | (9/2+) | ||
| 2279.0 13 | A | (13/2+) | 915 | | 1364.0 | (9/2+) | ||
| 3062.0 17 | A | (15/2+) | 838 | | 2224.0 | (11/2+) | ||
| 3505.0 17 | A | (17/2+) | 1226 | | 2279.0 | (13/2+) | ||
| 3776.0 20 | A | (17/2+) | 714 | | 3062.0 | (15/2+) | ||
| 4416.0 19 | A | (19/2+) | 640 911 | | 3776.0 3505.0 | (17/2+) (17/2+) | ||
| 4794.0 19 | A | (21/2+) | 378 1289 | | 4416.0 3505.0 | (19/2+) (17/2+) | ||
| 5561.0 21 | A | (25/2+) | 767 | | 4794.0 | (21/2+) | ||
E(level): From least-squares fit to Eγ data, assuming uncertainty of 1 keV for each γ ray
Jπ(level): As given by 2009Or02 and 2009WiZX, based on analogous states in mirror nucleus 67As.
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 1 - γ cascade based on 9/2+ | |||||||
| 1364.0 9 | (9/2+) | 1.04 ns 42 | |||||
| 2279.0 13 | (13/2+) | ||||||
| 3505.0 17 | (17/2+) | 1226 | | 2279.0 | (13/2+) | ||
| 4794.0 19 | (21/2+) | 378 1289 | | 4416.0 3505.0 | (19/2+) (17/2+) | ||
| 5561.0 21 | (25/2+) | 767 | | 4794.0 | (21/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
| Band 2 - γ cascade based on 11/2(+). This sequence is from level-scheme Fig. 1 in 2009WiZX, only the (19/2+) member of this sequence is given in 2009Or02 | |||||||
| 2224.0 13 | (11/2+) | ||||||
| 3062.0 17 | (15/2+) | ||||||
| 3776.0 20 | (17/2+) | 714 | | 3062.0 | (15/2+) | ||
| 4416.0 19 | (19/2+) | 640 911 | | 3776.0 3505.0 | (17/2+) (17/2+) | ||
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Mixing Ratio | Additional Data |
| 1364.0 | (9/2+) | 1.04 ns 42 | 717 | (E1+M2) | 0.40 LT | B(E1)(W.u.)=1.6E-7 +34-11, B(M2)(W.u.)=5.9 +35-29 |
| (9/2+) | 1.04 ns 42 | 1364 | [M2] | B(M2)(W.u.)=0.053 +49-26 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | (5/2-) | 133 ms 4 % ε = 100 % εp = 0.5 1 | Production σ=0.11 μb 5 in 9Be(78Kr,X),E=140 MeV/nucleon (2005St29), compared with theoretical cross sections. |
| E(level) | E(gamma) | Comments |
1994Ba50: 67Se produced in Zr(p,X),E=600 MeV at ISOLDE-CERN. Measured T1/2 and Eγ from decay of 67Se to 67As
1995Bl23: 67Se produced in Ni(78Kr,X),E=73 MeV/nucleon at the SISSI/LISE facility of GANIL. Measured half-life of decay of 67Se and β+-delayed protons
2002Lo13 (also 2002Bl17): from the same experimental group at GANIL as 1995Bl23 using the same reaction to produce 67Se. Measured T1/2 of 67Se decay
2005St29 (also 2005St34): 67Se isotope produced in the fragmentation of 140 MeV/nucleon 78Kr beam with 9Be target at NSCL-MSU facility, with secondary fragments unambiguously identified after separation in the A1900 fragment separator
2014Ro14: 67Se isotope produced in the fragmentation of 70 MeV/nucleon 78Kr beam with Ni target. Fragments selected with the LISE3 separator at GANIL and identified by time-of-flight and energy loss. Measured half-life of 67Se ground-state decay by (fragment)β, (fragment)γ correlations using set of four Si detectors (an energy loss ΔE detector, and DSSD and Si(Li)) for particles surrounded by four HPGe Clover detectors, three EXOGAM and one mini-clover Ge detector for γ rays.
Mass measurement: 2011Tu02
2012Bi10, 2011Ka07, 2010Ka32: authors analyzed origins of observed asymmetry of B(E1) strengths, and high-spin states for 67Se and 67As mirror nuclei.
Theoretical calculations dealing with structure and half-lives and decay modes in radioactivity: NSR database has 13 references, listed here in document records.
Levels: No evidence was found by 2009Or02 for a long-lived isomer in 67Se
Q-value: Estimated uncertainties (2021Wa16): 310 for Q(β-), 210 for S(n).
Q-value: Q(e)=10010 70, Q(εp)=7740 70, S(2n)=29700 310 (syst), S(2p)=4680 70 (2021Wa16)