20 Na
11 9
Half life: 447.9 ms 23
Jp: 2+
Decay mode: e+b+, ea
Sn (keV): 14155 14
Sp (keV): 2195 7
Prod. mode: Charged particle reaction
Literature cut-off date: 21-Apr-1997
Author(s): D. Tilley, C. Cheves, J. Kelley, S. Raman, and H. Weller
ENSDF citation: NP A636, 249 (1998)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 13887 7
ea 20.5 16

Gammas from 20Na (447.9 ms 23)

Eg (keV) Ig (%) Decay mode
654.9 18 0.0030 11 e+b+
1633.602 15 79.3 11 e+b+
2445 4 0.0081 e+b+
2451 5 0.0007 e+b+
2613.8 11 0.0026 18 e+b+
2852 4 0.210 e+b+
3332.54 20 0.037 3 e+b+
3987.3 17 0.0543 6 e+b+
4252 5 0.0015 e+b+
4652 4 0.066 e+b+
4905 4 0.001 e+b+
4965.85 20 0.00022 8 e+b+
5306 3 0.040 e+b+
5620.6 17 0.0047 8 e+b+
5624 5 0.0026 18 e+b+
6635 4 0.004 e+b+
8237 4 0.017 11 e+b+
8638 3 2.59 e+b+
9248 3 0.013 e+b+
9626.1 19 0.032 11 e+b+
9870 4 0.0001 e+b+
10271 3 0.023 e+b+
11258.9 19 0.171 24 e+b+

X-rays from 20Na (447.9 ms 23)

E (keV) I (%) Assignment
0,848 1.51E-06 16 Ne Ka2
0,849 3.0E-06 3 Ne Ka1

Betas from 20Na (447.9 ms 23)

>Eb endpoint (keV) Ib (%) Decay mode
980 0.0016 4 b+
1545 0.036 4 b+
1602,7 0.20 3 b+
1981 0.039 14 b+
2022 0.193 16 b+
2281 0.087 9 b+
2591 2.87 4 b+
2624,7 0.0030 4 e
2992 0.027 14 b+
3378 0.247 20 b+
4065 0.034 7 b+
5036 0.67 6 b+
5443,1 16.4 13 b+
11231,33 79.3 11 b+