ADOPTED LEVELS, GAMMAS for 85Se
Authors: Balraj Singh and Jun Chen | Citation: Nucl. Data Sheets 116, 1 (2014) | Cutoff date: 31-Dec-2013
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=6162 keV 4 | S(n)= 4537 keV 3 | S(p)= 13849 keV 4 | Q(α)= -8547 keV 3 | ||
| Reference: 2012WA38 |
| References: | |||
| A | 85As β- decay (2.021 S) | B | 86As β-n decay (0.945 S) |
| C | 248Cm,252Cf SF decay | D | 2H(84Se,p) |
| E | (HI,xnγ) | F | 208Pb(18O,xγ) |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 0 | ABCDEF | (5/2)+ | 32.9 s 3 % β- = 100 | ||||
| 461.9 3 | A DE | 1/2+ | 461.9 4 | 100 | 0 | (5/2)+ | |
| 1115.01 10 | A CDEF | (7/2)+ | 1115.0 1 | 100 | 0 | (5/2)+ | |
| 1436.69 17 | A CDEF | (9/2+) | 321.60 14 1437.6 10 | 16 3 100 10 | 1115.01 0 | (7/2)+ (5/2)+ | |
| 1444.42 20 | A D | (3/2+,5/2+) | 329.4 3 982.5 5 1444.0 10 | 14.0 14 9.3 12 100 9 | 1115.01 461.9 0 | (7/2)+ 1/2+ (5/2)+ | |
| 1610.1 4 | A | (1/2,3/2,5/2+) | 1148.2 3 | 100 | 461.9 | 1/2+ | |
| 1635.2 3 | A | 1635.2 3 | 100 | 0 | (5/2)+ | ||
| 1804.8 3 | A | 1804.8 3 | 100 | 0 | (5/2)+ | ||
| 1975.9 5 | C EF | (11/2+) | 539.3 4 | 100 | 1436.69 | (9/2+) | |
| 1990.1 3 | A | 545.8 5 875.1 3 | 60 10 100 10 | 1444.42 1115.01 | (3/2+,5/2+) (7/2)+ | ||
| 2003.4 4 | A | (1/2,3/2,5/2+) | 1541.5 4 2003.4 5 | 33 17 100 17 | 461.9 0 | 1/2+ (5/2)+ | |
| 2137.8 8 | A | 147.6 10 527.8 10 | 100 50 100 50 | 1990.1 1610.1 | (1/2,3/2,5/2+) | ||
| 2145.9 5 | A | 156.5 10 2145.7 5 | 33 17 100 17 | 1990.1 0 | (5/2)+ | ||
| 2320.1 6 | F | (11/2+) | 883.3 6 | 100 | 1436.69 | (9/2+) | |
| 2373.3 6 | C F | (13/2+) | 397.5 5 | 100 | 1975.9 | (11/2+) | |
| 2451.0 5 | A | 1336.0 5 | 100 | 1115.01 | (7/2)+ | ||
| 2781.0 4 | A | 789? 1335.7 1666.9 | | 1990.1 1444.42 1115.01 | (3/2+,5/2+) (7/2)+ | ||
| 3058.4 4 | A | 1615.1 7 1621.5 3 | 15 4 100 10 | 1444.42 1436.69 | (3/2+,5/2+) (9/2+) | ||
| 3810.4 7 | F | (15/2+) | 1437.5 8 1490 1 1834 1 | 100 36 100 36 | 2373.3 2320.1 1975.9 | (13/2+) (11/2+) (11/2+) | |
| E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | Final Levels | |
| 3954.0 5 | A | 2510? 2838.9 5 | 100 | 1444.42 1115.01 | (3/2+,5/2+) (7/2)+ | ||
| 4126.0 5 | A | 4125.9 5 | 100 | 0 | (5/2)+ | ||
| 4219.1 4 | A | 2774.6 3 | 100 | 1444.42 | (3/2+,5/2+) | ||
| 4254.2 11 | F | (17/2+) | 443.8 8 | 100 | 3810.4 | (15/2+) | |
| 4283.0 5 | A | 4282.9 5 | 100 | 0 | (5/2)+ | ||
| 4291.3 4 | A | 4291.2 4 | 100 | 0 | (5/2)+ | ||
| 4369.0 3 | A | 4368.9 3 | 100 | 0 | (5/2)+ | ||
| 4498.0 5 | A | 3060.5 10 4498.1 5 | 100 10 40 10 | 1436.69 0 | (9/2+) (5/2)+ | ||
| 4557.5 4 | A | 4557.4 4 | 100 | 0 | (5/2)+ | ||
| 4560.4 4 | A | 4560.3 4 | 100 | 0 | (5/2)+ | ||
| 4636.1 3 | A | 2646.8 10 3191.0 6 4636.0 3 | 29 7 57 7 100 10 | 1990.1 1444.42 0 | (3/2+,5/2+) (5/2)+ | ||
| 4654.0 6 | A | 4653.9 6 | 100 | 0 | (5/2)+ | ||
| 4666.9 5 | A | 4666.8 5 | 100 | 0 | (5/2)+ | ||
| 4709.23 25 | A | 3264.9 3 3594.0 5 4708.9 4 | 100 10 40 10 40 10 | 1444.42 1115.01 0 | (3/2+,5/2+) (7/2)+ (5/2)+ | ||
| 4792.2 4 | A | 4792.1 4 | 100 | 0 | (5/2)+ | ||
| 5164.81 21 | A | 4049.7 2 5164.6 5 | 100 10 31 3 | 1115.01 0 | (7/2)+ (5/2)+ | ||
E(level): From least-squares fit to Eγ data, assuming 0.5 keV uncertainty when not given. Possible six additional levels from 6055 to 8090 are deduced from neutron transitions to 84Se levels in 85As β-n decay (1979Kr03)
| E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | Final Levels | ||
| Band 1 - Yrast sequence based on (5/2)+ | |||||||
| 0 | (5/2)+ | 32.9 s 3 % β- = 100 | |||||
| 1115.01 10 | (7/2)+ | 1115.0 1 | 100 | 0 | (5/2)+ | ||
| 1436.69 17 | (9/2+) | 321.60 14 1437.6 10 | 16 3 100 10 | 1115.01 0 | (7/2)+ (5/2)+ | ||
| 1975.9 5 | (11/2+) | 539.3 4 | 100 | 1436.69 | (9/2+) | ||
| 2373.3 6 | (13/2+) | 397.5 5 | 100 | 1975.9 | (11/2+) | ||
| 3810.4 7 | (15/2+) | 1437.5 8 1490 1 1834 1 | 100 36 100 36 | 2373.3 2320.1 1975.9 | (13/2+) (11/2+) (11/2+) | ||
| 4254.2 11 | (17/2+) | 443.8 8 | 100 | 3810.4 | (15/2+) | ||
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0 | (5/2)+ | 32.9 s 3 % β- = 100 | E(level): Yrast sequence based on (5/2)+. |
| 1115.01 | (7/2)+ | XREF: F(?). E(level): Yrast sequence based on (5/2)+. Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). | |
| 1436.69 | (9/2+) | E(level): Yrast sequence based on (5/2)+. Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). | |
| 1975.9 | (11/2+) | E(level): Yrast sequence based on (5/2)+. Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). | |
| 2320.1 | (11/2+) | Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). | |
| 2373.3 | (13/2+) | E(level): Yrast sequence based on (5/2)+. Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). | |
| 3810.4 | (15/2+) | E(level): Yrast sequence based on (5/2)+. Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). | |
| 4254.2 | (17/2+) | E(level): Yrast sequence based on (5/2)+. Jπ(level): Yrast pattern of population in (18O,Xγ) and/or shell-model predictions (2009Po04). |
| E(level) | E(gamma) | Comments |
| 1436.69 | 1437.6 | E(γ): from β- decay. Other: 1436.1 5 in (18O,Xγ), not used since there is also 1437.5γ in this reaction |
| 2137.8 | 527.8 | I(γ): Upper limit of intensity |
| 2145.9 | 156.5 | I(γ): Upper limit of intensity |
| 3810.4 | 1834 | I(γ): weak γ |
| 4636.1 | 2646.8 | I(γ): Upper limit of intensity |
1960Sa05: identification of 85Se isotope in fission. Others (studies of 85Se decay, its half-life and formation): 1970OsZZ, 1973Ta19, 1975Hu02, 1975Al11, 1977Pf01, 1977Ki14, 1978Ze08, 1978Be51, 1980Ze04, 1982Re10, 1982Re08, 1982Li09, 1983Sk05
Mass measurement: 2008Ha23 (Penning trap method)
α 19S activity reported in 1975Al11 (also 1970OsZZ) has not been confirmed in any of the later studies
Q-value: S(2n)=13216 4, S(2p)=26015 4 (2012Wa38)