Table of Isotopes decay data

WWW Table of Radioactive Isotopes

138	I
53	I	85

Half life:

6.49 s 7

Jp:

(2-)

S_n (keV):

3869 84

S_p (keV):

1.003E4 15

Prod. mode:

Fission product

ENSDF citation:

NDS 74,349 (1995)

Literature cut-off date:

1-Oct-1994

Author(s):

J.K. Tuli

References since cut-off:

¹³⁸I decay from 1994-98 (NSR)


Decay properties:
Mode	Branching (%)	Q-value (keV)	References
b^-	100	7820 70	79Ho21
b^-n	5.5 4

Most Recent ENSDF Data (12/2002)
Mode	Data set name	Display data
b^-	138I B- DECAY
	Tables:
	ENSDF data:
	Java applets:

TORI Data (1999) Gammas from ¹³⁸I (6.49 s 7)
Eg (keV)	Ig (%)	Decay mode

385.15 7	0.06	b^-n
431	0.28 11	b^-
483.700 24	3.53 17	b^-
588.825 18	56 2	b^-
601.05 7	1.1	b^-n
650.8 5	0.24 6	b^-
738.5 5	0.25 6	b^-
779.0 5	0.20 6	b^-
830.69 8	1.62 10	b^-
837.5 5	0.13 5	b^-
849.9 5	0.13 3	b^-
870.2 2	3.2 5	b^-
875.23 13	9.2 8	b^-
942.91 8	0.66 3	b^-
987.5 5	0.16 5	b^-
1108.28 18	0.39 3	b^-
1258.84 14	0.73 5	b^-
1277.45 11	2.37 12	b^-
1314.28 10	1.00 3	b^-
1332.27 13	0.162 11	b^-
1355.81 11	0.40 3	b^-
1371.4 5	0.26 6	b^-
1426.9 3	1.2 3	b^-
1444.90 17	0.258 17	b^-
1464.0 2	0.62 7	b^-
1500.40 11	0.91 5	b^-
1525.82 13	0.85 7	b^-
1528.37 15	0.66 4	b^-
1567.1 5	0.23 6	b^-
1623.68 13	0.53 3	b^-
1673.28 9	1.23 5	b^-
1678.62 19	0.26 3	b^-
1697.33 19	0.27 3	b^-
1707.1 2	0.24 4	b^-
1744.6 2	1.07 11	b^-
1809.30 14	2.05 10	b^-
1835.52 17	0.246 22	b^-
1866.25 17	0.34 3	b^-
1889.04 19	0.38 3	b^-
1919.94 18	0.140 11	b^-
1946.27 13	0.409 17	b^-
1954.90 12	0.739 22	b^-
2032.79 15	~0.45	b^-
2058.85 14	0.80 4	b^-
2085.42 12	0.77 3	b^-
2114.7 5	0.15 3	b^-
2151.5 2	0.106 17	b^-
2157.75 18	0.168 11	b^-
2262.19 11	3.86 11	b^-
2301.56 16	1.02 5	b^-
2307.6 4	0.146 22	b^-
2363.74 16	0.280 17	b^-
2375.9 2	0.157 17	b^-
2398.15 15	0.67 3	b^-
2543.73 14	0.795 22	b^-
2572.38 14	1.20 3	b^-
2644.6 2	0.25 3	b^-
2670.4 4	0.084 11	b^-
2674.1 3	0.118 17	b^-
2685.37 15	0.185 11	b^-
2700.1 2	0.101 11	b^-
2793.9 3	0.196 17	b^-
2806.4 4	0.090 17	b^-
2835.65 19	1.24 5	b^-
2842.6 5	0.062 17	b^-
2927.77 13	0.118 6	b^-
2964.4 3	0.157 11	b^-
3025.8 5	0.11 3	b^-
3141.5 2	0.213 11	b^-
3310.28 15	1.09 5	b^-
3366.9 3	0.078 22	b^-
3372.9 6	0.140 22	b^-
3452.3 3	0.123 11	b^-
3458.6 2	0.179 11	b^-
3496.3 2	0.73 4	b^-
3516.3 2	0.162 17	b^-
3578.4 3	0.190 17	b^-
3584.7 2	0.302 17	b^-
3593.0 2	0.246 11	b^-
3888.1 2	0.218 22	b^-
3898.4 6	0.045 11	b^-
3905.9 3	0.090 11	b^-
4014.1 3	0.090 11	b^-
4090.0 2	0.224 11	b^-
4099.7 2	0.140 11	b^-
4128.1 3	0.101 11	b^-
4182.0 2	0.63 4	b^-
4306.8 3	0.162 11	b^-
4318.9 2	0.41 3	b^-
4496.1 3	0.162 11	b^-
4515.2 5	0.084 11	b^-
4697.0 3	0.241 17	b^-
4720.0 4	0.050 6	b^-
4752.7 4	0.084 6	b^-
4973.9 3	0.101 6	b^-
5004.8 4	0.118 11	b^-
5261.1 4	0.062 11	b^-
5329.7 6	0.078 11	b^-
5341.6 5	0.123 17	b^-

Betas from ¹³⁸I (6.49 s 7)
Eb endpoint (keV)	Ib (%)	Decay mode

820	5.5 4	b^-
2478.4	0.30 4	b^-
3501.1	0.41 5	b^-
3638	1.01 10	b^-
3920.9	2.21 22	b^-
4303.6	0.28 3	b^-
4323.7	1.18 12	b^-
4688.7	0.80 9	b^-
4855.6	1.36 14	b^-
4867.4	0.41 6	b^-
4929.6	1.18 13	b^-
4984.4	1.51 16	b^-
5145.8	0.89 9	b^-
5247.6	1.59 15	b^-
5276.3	1.14 12	b^-
5284.9	0.32 4	b^-
5421.9	2.7 3	b^-
5486	4.6 7	b^-
5488.7	0.50 9	b^-
5557.8	5.0 5	b^-
5607.5	0.53 6	b^-
5702.8	0.66 7	b^-
5705.3	0.97 14	b^-
5804.6	1.8 4	b^-
5916.9	2.2 3	b^-
5953.7	2.26 24	b^-
6356	4.4 11	b^-
7231.17	27 4	b^-
7820	27 7	b^-

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