33 Ar
18 15
Half life: 173.0 ms 20
Jp: 1/2+
Decay mode: e+b+, ep
Sn (keV): 15274 58
Sp (keV): 3340 31
Prod. mode: Charged particle reaction
Literature cut-off date: 1-Jun-1990
Author(s): P.M. Endt
ENSDF citation: NP A521,1 (1990)

Decay properties

Mode Branching (%) Q-value (keV)
e+b+ 100 11622 30
ep 38.7 10

Gammas from 33Ar (173.0 ms 20)

Eg (keV) Ig (%) Decay mode
810.51 42.1 8 e+b+
1541.2 1.0 2 e+b+
1547.9 8 0.51 10 ep
2230.2 3 18.4 10 ep
2351.7 0.7 2 e+b+

X-rays from 33Ar (173.0 ms 20)

E (keV) I (%) Assignment
0,202 2.0E-07 6 CL Lb1
0,263 1.2E-07 4 CL Lb4
0,263 1.9E-07 7 CL Lb3
2,552 6.0E-11 7 CL Ka3
2,621 0.00082 9 CL Ka2
2,622 0.00164 18 CL Ka1
2,816 1.01E-04 11 CL Kb1
2,816 5.1E-05 6 CL Kb3

Betas from 33Ar (173.0 ms 20)

>Eb endpoint (keV) Ib (%) Decay mode
1494 0.0036 16 b+
1570 0.004 2 b+
1716 0.016 2 b+
1869 0.005 2 b+
2084 0.021 4 b+
2341 0.012 2 b+
2464 0.17 1 b+
2566 0.22 1 b+
2592 0.036 18 e
2877 0.018 3 b+
2973 0.054 4 b+
3093 0.11 1 b+
3116 0.064 6 b+
3157 0.33 1 b+
3333 0.023 3 b+
3588 0.00112 5 e
3691 0.018 5 b+
3885 0.008 2 b+
3988 0.017 3 b+
4291 0.019 4 b+
4341 0.046 6 b+
4351 0.80 2 b+
4515 0.013 4 b+
4649 0.10 1 b+
4732 0.60 4 b+
4860 0.75 4 b+
5054 30.7 1 b+
5148 0.07 2 b+
5293 0.121 8 b+
5493 0.045 5 b+
5766 0.33 1 b+
5876 0.19 3 b+
6018 0.010 3 b+
6076 0.0207 1 e
6159,8 2.35 2 b+
6498,8 0.43 1 b+
6626,1 0.34 1 b+
8246,2 1.7 3 b+
9787,48 41.1 8 b+
10598 18 2 b+
10809,48 0.00391 8 e
11620 0.00135 15 e