ADOPTED LEVELS, GAMMAS for 21F
Author: R.B. Firestone | Citation: Nucl. Data Sheets 127, 1 (2015) | Cutoff date: 15-Jan-2015
Full ENSDF file | Adopted Levels (PDF version)
Q(β-)=5684.2 keV 18 | S(n)= 8101.5 keV 18 | S(p)= 11132.7 keV 20 | Q(α)= -10344 keV 15 | ||
Reference: 2012WA38 |
References: | |||
A | 19F(t,p),(t,pγ) | B | 22Ne(t,α) |
C | 22Ne(d,3He),(pol d,3He) | D | 21O β- decay |
E | 19F(α,2He) | F | 208Pb(22Ne,xγ) |
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
0.0 | ABCDEF | 5/2+ | 4.158 s 20 % β- = 100 | |||||
279.93 6 | ABCDEF | 1/2+ | 6.1 ns 6 | 279.92 6 | 100 | (E2) | 0.0 | 5/2+ |
1100.9 20 | ABC | 1/2- | 0.30 fs 6 | 821 2 | 100 | [E1] | 279.93 | 1/2+ |
1730.40 6 | ABCDE | 3/2+ | 0.05 ps 4 | 1450.5 2 1730.28 8 | 22.0 25 100.0 25 | [M1] [M1] | 279.93 0.0 | 1/2+ 5/2+ |
1754.83 8 | A DE | (7/2+,9/2+) | 2.4 ps 3 | 1754.74 8 | 100 | 0.0 | 5/2+ | |
2039.8 12 | A C | 3/2- | < 35 fs | 1759.0 15 2041.1 20 | 32 8 100 8 | [E1] [E1] | 279.93 0.0 | 1/2+ 5/2+ |
2071 2 | A | 55 fs 21 | 2070.9 20 | 100 | 0.0 | 5/2+ | ||
2410 30 | C | (1/2,3/2)- | ||||||
3459.64 9 | ABCD | (3/2,5/2)+ | < 0.7 ps | 1729.2 10 3179.43 10 3459.38 13 | 77 5 100 6 56 5 | 1730.40 279.93 0.0 | 3/2+ 1/2+ 5/2+ | |
3517.67 7 | ABCD | (3/2,5/2)+ | < 0.7 ps | 1787.16 8 3517.40 10 | 92 4 100 4 | [M1] [M1] | 1730.40 0.0 | 3/2+ 5/2+ |
3638.95 12 | AB DE | (3/2+,5/2+) | 1884.01 9 | 100 | 1754.83 | (7/2+,9/2+) | ||
3966 5 | AB | 2236 5 | 100 | 1730.40 | 3/2+ | |||
3996 5 | AB | |||||||
4064 5 | AB | |||||||
4172 5 | ABC | (3/2,5/2)+ | ||||||
4451 5 | A | |||||||
4572.38 25 | CD | (3/2,5/2,7/2)+ | 933.2 3 4572.2 4 | 100 4 82 4 | 3638.95 0.0 | (3/2+,5/2+) 5/2+ | ||
4584.0 3 | A CD | (3/2,5/2)+ | 4583.5 3 | 100 | 0.0 | 5/2+ | ||
4669 5 | A | |||||||
4924 5 | A | |||||||
5029 5 | A C | 3/2- | ||||||
5079 5 | A | (3/2,5/2)+ | ||||||
5350 20 | A | |||||||
E(level) (keV) | XREF | Jπ(level) | T1/2(level) | E(γ) (keV) | I(γ) | M(γ) | Final Levels | |
5486 20 | A | |||||||
5566 20 ? | A | |||||||
5592 20 | A E | (3/2,5/2)+ | ||||||
5787 20 | A | |||||||
5881 20 | A | |||||||
6590 | E | (3/2+,5/2+) | ||||||
7190 20 | C | (1/2,3/2)- | ||||||
7470 20 | C | 3/2- | ||||||
7740 20 | C | (1/2,3/2)- | ||||||
8090 | E | (3/2+,5/2+) | ||||||
8170 20 | C | (1/2,3/2)- | ||||||
8560 20 ? | C | (1/2,3/2)- | ||||||
8820 | E | (3/2+,5/2+) | ||||||
9430 20 ? | C | (1/2,3/2)- |
E(level) (keV) | Jπ(level) | T1/2(level) | E(γ) (keV) | Multipolarity | Additional Data |
279.93 | 1/2+ | 6.1 ns 6 | 279.92 6 | (E2) | B(E2)(W.u.)=15.7 16 |
1100.9 | 1/2- | 0.30 fs 6 | 821 2 | [E1] | B(E1)(W.u.)=5.4 11 |
1730.40 | 3/2+ | 0.05 ps 4 | 1450.5 2 | [M1] | B(M1)(W.u.)=0.026 21 |
3/2+ | 0.05 ps 4 | 1730.28 8 | [M1] | B(M1)(W.u.)=0.07 6 | |
2039.8 | 3/2- | < 35 fs | 1759.0 15 | [E1] | B(E1)(W.u.)>0.0011 |
3/2- | < 35 fs | 2041.1 20 | [E1] | B(E1)(W.u.)>0.0023 | |
3517.67 | (3/2,5/2)+ | < 0.7 ps | 1787.16 8 | [M1] | B(M1)(W.u.)>0.0026 |
(3/2,5/2)+ | < 0.7 ps | 3517.40 10 | [M1] | B(M1)(W.u.)>0.00038 |
Additional Level Data and Comments:
E(level) | Jπ(level) | T1/2(level) | Comments |
Populated by 22O β-n decay and 23O β-2n decay. No level data measured.