43 K
19 24
Half life: 22.3 h 1
Jp: 3/2+
Decay mode: b-
Sn (keV): 9643 9
Sp (keV): 9460 41
Prod. mode: Charged particle reaction
Photon reaction
Fast neutron activation
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)
b- 100 1815 9

Gammas from 43K (22.3 h 1)

Eg (keV) Ig (%) Decay mode
220.631 4.80 6 b-
372.760 87 b-
396.861 11.85 8 b-
404.214 0.365 13 b-
593.390 11.26 8 b-
617.490 79.2 6 b-
801.071 0.148 13 b-
990.245 0.29 4 b-
1021.698 1.96 3 b-
1394.449 0.131 8 b-

X-rays from 43K (22.3 h 1)

E (keV) I (%) Assignment
0,350 1.3E-05 4 Ca Lb1
0,412 3.8E-06 12 Ca Lb4
0,412 6.1E-06 19 Ca Lb3
3,600 7.8E-10 7 Ca Ka3
3,688 0.0040 4 Ca Ka2
3,692 0.0079 7 Ca Ka1
4,013 0.00042 4 Ca Kb3
4,013 0.00082 7 Ca Kb1
4,038 1.31E-11 12 Ca Kb4

Betas from 43K (22.3 h 1)

>Eb endpoint (keV) Ib (%) Decay mode
420,53 2.60 4 b-
824,74 90.9 6 b-
1221,61 4.06 13 b-
1442,24 0.9 6 b-
1815 1.54 18 b-