ADOPTED LEVELS, GAMMAS for 85Br
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-)=2905 keV 4 | S(n)= 8864 keV 26 | S(p)= 9917 keV 4 | Q(α)= -8467 keV 4 | ||
Reference: 2012WA38 |
References: | |||
A | 85Se β- decay (32.9 S) | B | 86Kr(d,3He),(pol d,3He) |
C | 192Os(82Se,xγ) | D | 208Pb(18O,xγ) E=91 MeV |
E | 208Pb(18O,xγ) E=85 MeV |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDE | 3/2- | 2.90 m 6 % β- = 100 | |||||
344.96 14 | ABCDE | 5/2- | 344.9 2 | 100 | (M1) | 0.0 | 3/2- | |
955.75 22 | AB | 3/2- | 609.8 5 956.2 3 | 66 8 100 15 | 344.96 0.0 | 5/2- 3/2- | ||
1191.2 4 | AB | 1/2- | 1191.2 4 | 100 | 0.0 | 3/2- | ||
1427.08 15 | A DE | (7/2-) | 1082.1 4 1427.0 2 | 37 5 100 10 | Q | 344.96 0.0 | 5/2- 3/2- | |
1553.13 23 | A | (1/2-:7/2-) | 597.4 5 1207.9 4 1552.8 5 | 30 3 100 15 19 5 | 955.75 344.96 0.0 | 3/2- 5/2- 3/2- | ||
1572.26 16 | CDE | 9/2(-) | 1227.3 1 | 100 | Q | 344.96 | 5/2- | |
1724.6 4 | A | (3/2,5/2,7/2) | 1724.5 5 | 100 | 0.0 | 3/2- | ||
1795.1 5 | AB | 1/2- | 840.9 21 1450.1 8 1795.3 8 | 100 22 62 10 30 8 | 955.75 344.96 0.0 | 3/2- 5/2- 3/2- | ||
1859.34 23 | A DE | (9/2+) | 432.3 2 1514.8 10 ? | 100 17 <7 | D [M2] | 1427.08 344.96 | (7/2-) 5/2- | |
1943.7 4 | A | (1/2-:7/2-) | 987.9 5 1599.0 10 1944.0 9 | 100 13 55 8 63 11 | 955.75 344.96 0.0 | 3/2- 5/2- 3/2- | ||
2165.64 17 | CDE | (11/2-) | 593.4 1 738.5 2 | 100 10 40 8 | D | 1572.26 1427.08 | 9/2(-) (7/2-) | |
2310 31 | B | 3/2- | ||||||
2800.3 3 | A | (5/2,7/2) | 941.1 4 1246.9 5 1373.4 4 2455.1 6 | 100 15 62 20 60 18 87 13 | 1859.34 1553.13 1427.08 344.96 | (9/2+) (1/2-:7/2-) (7/2-) 5/2- | ||
2991.6 4 | DE | (11/2+) | 1132.2 4 1419.3 5 | 100 20 41 13 | 1859.34 1572.26 | (9/2+) 9/2(-) | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
3007.8 5 | A | (3/2,5/2,7/2-) | 3007.7 5 | 100 | 0.0 | 3/2- | ||
3326.2 3 | CDE | (13/2-) | 1160.6 2 | 100 | D | 2165.64 | (11/2-) | |
3401 36 | B | 7/2- | ||||||
3421.6 3 | DE | (13/2+) | 1562.3 2 | 100 | 1859.34 | (9/2+) | ||
3539.6 5 | A | (3/2,5/2,7/2-) | 2584.3 8 3539.3 5 | 100 15 70 8 | 955.75 0.0 | 3/2- 3/2- | ||
3644.5 5 | A | (3/2,5/2,7/2) | 1701.0 5 2091.2 5 | 100 15 33 9 | 1943.7 1553.13 | (1/2-:7/2-) (1/2-:7/2-) | ||
3680.3 11 | A | (3/2,5/2,7/2) | 2724.5 10 | 100 | 955.75 | 3/2- | ||
3685.5 4 | DE | (13/2+) | 1826.1 5 | 100 | 1859.34 | (9/2+) | ||
3708.3 6 | CDE | (15/2-) | 382.2 20 | 100 | D | 3326.2 | (13/2-) | |
3741.6 3 | A | (3/2)+ | 2550.2 5 3396.6 4 3741.4 5 | 22 3 100 15 9.3 13 | 1191.2 344.96 0.0 | 1/2- 5/2- 3/2- | ||
3824.4 4 | A | (3/2,5/2-) | 2029.4 5 3479.3 4 | 100 23 68 14 | 1795.1 344.96 | 1/2- 5/2- | ||
3856.2 4 | CDE | (15/2+) | 434.4 3 864.5 3 | 37 15 100 33 | 3421.6 2991.6 | (13/2+) (11/2+) | ||
3955.7 5 | DE | (15/2) | 1790.1 5 | 100 | 2165.64 | (11/2-) | ||
3970.2 4 | A | (3/2,5/2,7/2)+ | 2245.6 5 2417.3 5 2542.9 5 3625.2 9 | ≈13 100 15 ≈33 48 8 | 1724.6 1553.13 1427.08 344.96 | (3/2,5/2,7/2) (1/2-:7/2-) (7/2-) 5/2- | ||
4000.3 5 | A | (3/2,5/2,7/2)+ | 2446.9 5 3655.9 9 | 12 9 100 16 | 1553.13 344.96 | (1/2-:7/2-) 5/2- | ||
4028.7 4 | A | (3/2)+ | 2234.4 14 2304.0 6 2601.5 4 3683.8 9 | 100 16 19 5 50 8 78 13 | 1795.1 1724.6 1427.08 344.96 | 1/2- (3/2,5/2,7/2) (7/2-) 5/2- | ||
4118.8 5 | A | (3/2,5/2,7/2)+ | 2565.4 5 3774.5 8 | 33 6 100 16 | 1553.13 344.96 | (1/2-:7/2-) 5/2- | ||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
4172.2 10 | A | (3/2,5/2,7/2) | 3827.1 10 | 100 | 344.96 | 5/2- | ||
4299.2 5 | A | (3/2,5/2,7/2)+ | 2871.9 5 3954.8 9 | ≈82 100 18 | 1427.08 344.96 | (7/2-) 5/2- | ||
4341.9 7 | CDE | (17/2-) | 633.6 2 | 100 | 3708.3 | (15/2-) | ||
4440.3 4 | DE | (17/2+) | 583.9 3 1018.8 3 | 100 30 69 21 | 3856.2 3421.6 | (15/2+) (13/2+) | ||
4510.8 6 | A | (3/2,5/2,7/2-) | 3555.0 5 | 100 | 955.75 | 3/2- | ||
4657.7 4 | DE | (17/2+) | 217.1 3 702.0 10 949.4 5 972.5 5 | 100 25 <38 77 25 92 34 | 4440.3 3955.7 3708.3 3685.5 | (17/2+) (15/2) (15/2-) (13/2+) | ||
4678.7 4 | DE | (17/2+) | 993.0 5 1257.1 5 | 72 25 100 25 | 3685.5 3421.6 | (13/2+) (13/2+) | ||
4907.6 4 | DE | (19/2+) | 228.8 3 249.75 25 467.9 4 | 30 8 100 21 14 4 | 4678.7 4657.7 4440.3 | (17/2+) (17/2+) (17/2+) | ||
5114.1 8 | E | (19/2-) | 772.2 5 | 100 | 4341.9 | (17/2-) | ||
5390.6 11 | E | (21/2) | 483 1 | 100 | 4907.6 | (19/2+) |
E(level): From least-squares fit to Eγ data
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 1 - γ cascade based on GS | |||||||
0.0 | 3/2- | 2.90 m 6 % β- = 100 | |||||
344.96 14 | 5/2- | 344.9 2 | 100 | (M1) | 0.0 | 3/2- | |
1427.08 15 | (7/2-) | 1082.1 4 1427.0 2 | 37 5 100 10 | Q | 344.96 0.0 | 5/2- 3/2- | |
1572.26 16 | 9/2(-) | 1227.3 1 | 100 | Q | 344.96 | 5/2- | |
2165.64 17 | (11/2-) | 593.4 1 738.5 2 | 100 10 40 8 | D | 1572.26 1427.08 | 9/2(-) (7/2-) | |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) | I(γ) | M(γ) | Final Levels | |
Band 2 - γ cascade based on (13/2-) | |||||||
3326.2 3 | (13/2-) | ||||||
3708.3 6 | (15/2-) | 382.2 20 | 100 | D | 3326.2 | (13/2-) | |
4341.9 7 | (17/2-) | 633.6 2 | 100 | 3708.3 | (15/2-) | ||
5114.1 8 | (19/2-) | 772.2 5 | 100 | 4341.9 | (17/2-) |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Conversion Coefficient | Additional Data |
344.96 | 5/2- | 344.9 2 | (M1) | 0.00464 | α=0.00464 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
0.0 | 3/2- | 2.90 m 6 % β- = 100 | E(level): γ cascade based on GS. Yrast structure. |
344.96 | 5/2- | E(level): γ cascade based on GS. Yrast structure. | |
955.75 | 3/2- | XREF: B(900). | |
1191.2 | 1/2- | XREF: B(1169). | |
1427.08 | (7/2-) | E(level): γ cascade based on GS. Yrast structure. | |
1572.26 | 9/2(-) | E(level): γ cascade based on GS. Yrast structure. | |
2165.64 | (11/2-) | E(level): γ cascade based on GS. Yrast structure. | |
3326.2 | (13/2-) | E(level): γ cascade based on (13/2-). Yrast structure. | |
3708.3 | (15/2-) | E(level): γ cascade based on (13/2-). Yrast structure. | |
4341.9 | (17/2-) | E(level): γ cascade based on (13/2-). Yrast structure. | |
5114.1 | (19/2-) | E(level): γ cascade based on (13/2-). |
E(level) | E(gamma) | Comments |
344.96 | 344.9 | E(γ): Unweighted average of all values available; weighted average (or LWM average) is 344.8 2 but with large reduced χ2=8.8 M(γ): ΔJ=1, dipole from γ(θ); ΔJπ gives M1 |
No new references or data were found for 85Br after the update of December 31, 2013 in ENSDF (B. Singh, May 8, 2015)
85Br identified and produced in fission of uranium (1940St03, 1949Su14), and in the bombardment of 85Kr with protons (1943Bo01). Later decay measurements of 85Br decay: 1971Er15, 1974Gr29, 1975Hu02, 1975Nu03
Q-value: S(2n)=15705 5, S(2p)=23484 4 (2012Wa38)