ADOPTED LEVELS, GAMMAS for 9B
Authors: J.H. Kelley, C.G. Sheu, J.L. Godwin, Et Al. | Citation: Nucl. Physics A745 155 (2004) | Cutoff date: 31-Mar-2004
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=-16494.5 keV 24 | S(n)= 18576.4 keV 14 | S(p)= -185.9 keV 9 | Q(α)= -1.69×103 keV 5 | ||
Reference: 2012WA38 |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | AB DEF HIJKLMNOP | 3/2- | 0.54 keV 21 % p = 100 | |||||
≈1500? | E HIJ M O | ≈ 1.2 MeV % α > 0 % p < 100 | ||||||
2345 11 | AB D F HIJKLMNOP | 5/2- | 81 keV 5 % p = 0.5 % α = 99.5 | |||||
2751 25 | EF HIJK M OP | 5/2+ | 614 keV 37 % p ≈ 100 | |||||
2.78E3 16 | A E H | 1/2- | 3.13 MeV 20 % p ≥ 90 % α ≤ 10 | |||||
4.8E+3 1 | F HIJ M | 1.2 MeV 2 % α ≤ 100 | ||||||
6985 50 | F HI K NOP | 7/2- | 2.18 MeV 15 % p ≤ 100 | |||||
11640 50 | H K M OP | (7/2)- | 780 keV 45 % p ≤ 100 | |||||
12160 40 | A F H N | 455 keV 20 % p = 24 4 % α = 74 10 | ||||||
14010 70 | A F H N | 0.39 MeV 11 % p = 100 | ||||||
14655.0 25 | A F I N | 3/2- | 0.377 keV 38 % IT = 4.09 % p ≈ 44 % α ≈ 46 | 11.87E3 16 12301 11 ≈13145 14642.2 25 | 16.0 93 100 11 <4.1 95.9 88 | M1 M1 E1 M1 | 2.78E3 2345 1500 0.0 | 1/2- 5/2- 3/2- |
14.70E+3 18 | K | (5/2)- | 1.35 MeV 20 | |||||
15290 40 | N | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
15580 40 | N | |||||||
16024 25 | F N | 180 keV 16 | ||||||
16.71E3 10 ? | H | (5/2+) | ||||||
17076 4 | B I N | 22 keV 5 % IT > 0 % 3HE < 100 | 14718 11 17059 4 | | 2345 0.0 | 5/2- 3/2- | ||
17190 25 | C FG N | 113 keV 24 % D > 0 % 3HE > 0 % p < 100 | ||||||
17.54E3 10 ? | H | (7/2+) | ||||||
17638 10 | BC FG N | 71 keV 7 % D > 0 % 3HE > 0 % α > 0 % p < 100 | ||||||
18.6E3 3 ? | B I K | 1000 keV % 3HE > 0 % p < 100 | ||||||
20.7E3 5 ? | I | 1.6 MeV 3 |
E(γ): From level energy difference; recoil correction applied.
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
14655.0 | 3/2- | 0.377 keV 38 % IT = 4.09 % p ≈ 44 % α ≈ 46 | 11.87E3 16 | M1 | B(M1)(W.u.)=0.033 20 |
3/2- | 0.377 keV 38 % IT = 4.09 % p ≈ 44 % α ≈ 46 | 12301 11 | M1 | B(M1)(W.u.)=0.186 28 | |
3/2- | 0.377 keV 38 % IT = 4.09 % p ≈ 44 % α ≈ 46 | ≈13145 | E1 | B(E1)(W.u.)<4.5E-4 | |
3/2- | 0.377 keV 38 % IT = 4.09 % p ≈ 44 % α ≈ 46 | 14642.2 25 | M1 | B(M1)(W.u.)=0.105 6 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
2345 | 5/2- | 81 keV 5 % p = 0.5 % α = 99.5 | T=1/2 Decay branching ratios from (2000Ge09). E(level): Decay branching ratios from (2000Ge09). |
2751 | 5/2+ | 614 keV 37 % p ≈ 100 | T=1/2 %p from (1966Wi08). E(level): %p from (1966Wi08). |
2.78E3 | 1/2- | 3.13 MeV 20 % p ≥ 90 % α ≤ 10 | Jπ from 9C β-decay and 6Li(6Li,t). E(level): Jπ from 9C β-decay and 6Li(6Li,t). |
4.8E+3 | 1.2 MeV 2 % α ≤ 100 | α level at E=4.3 MeV 2 with Γ=1.6 MeV 2 from the unpublished thesis work of pugh 9Be(p,n) is referenced in (1988Mi03 and 1991Di03) and was adopted in (2004Ti02). E(level): α level at E=4.3 MeV 2 with Γ=1.6 MeV 2 from the unpublished thesis work of pugh 9Be(p,n) is referenced in (1988Mi03 and 1991Di03) and was adopted in (2004Ti02). | |
12160 | 455 keV 20 % p = 24 4 % α = 74 10 | T=1/2 Branching ratios from (2000Ge09). See also (2001Be51) who report %p=33 10 and %α=66 8.. E(level): Branching ratios from (2000Ge09). See also (2001Be51) who report %p=33 10 and %α=66 8.. | |
14010 | 0.39 MeV 11 % p = 100 | T=1/2 Branching ratios from (2000Ge09). E(level): Branching ratios from (2000Ge09). | |
14655.0 | 3/2- | 0.377 keV 38 % IT = 4.09 % p ≈ 44 % α ≈ 46 | T=3/2 Branching ratios from 7Li(3He,N+γ) (1978Di08) (%IT), 7Li(3He,N+p) (1976Mc10) (%p) and 9C β-decay (2001Be51) (%α). E(level): Branching ratios from 7Li(3He,N+γ) (1978Di08) (%IT), 7Li(3He,N+p) (1976Mc10) (%p) and 9C β-decay (2001Be51) (%α). |
14.70E+3 | (5/2)- | 1.35 MeV 20 | T=1/2 E(level): Decay mode not specified. |
15290 | T=1/2 E(level): Decay mode not specified. | ||
15580 | T=1/2 E(level): Decay mode not specified. | ||
16024 | 180 keV 16 | T=(1/2) E(level): Decay mode not specified. | |
16.71E3 | (5/2+) | E(level): Decay mode not specified. | |
17.54E3 | (7/2+) | E(level): Decay mode not specified. | |
20.7E3 | 1.6 MeV 3 | E(level): Decay mode not specified. |
See other reaction references in (1988Aj01).
Q-value: Note: Current evaluation has used the following Q record -16494.8 2318577.1 14-185.6 10-1689 50 2003Au03