Table of Isotopes decay data

WWW Table of Radioactive Isotopes

138	Xe
54	Xe	84

Half life:

14.08 m 8

Jp:

0+

S_n (keV):

5812 38

S_p (keV):

10907 46

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:

¹³⁸Xe decay from 1994-98 (NSR)


Decay properties:
Mode	Branching (%)	Q-value (keV)
b^-	100	2774 36

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

TORI Data (1999) Gammas from ¹³⁸Xe (14.08 m 8)
Eg (keV)	Ig (%)	Decay mode

4.85 5	0.19 3	b^-
10.85 5	0.70 4	b^-
68.3 2	0.047 16	b^-
137.20 20	0.07 4	b^-
153.858 3	5.95 13	b^-
197		b^-
242.56 5	3.50 6	b^-
258.411 20	31.5 6	b^-
282.51 6	0.428 13	b^-
325.3 3	0.023 8	b^-
329.4 5	0.015 8	b^-
335.28 9	0.107 10	b^-
371.44 5	0.501 25	b^-
396.513 10	6.30 13	b^-
401.36 5	2.17 10	b^-
434.562 41	20.3 4	b^-
500.22 6	0.362 13	b^-
530.07 7	0.252 13	b^-
534.0 6	0.015 6	b^-
537.76 13	0.117 16	b^-
540.8 6	0.022 13	b^-
555.95 9	0.117 13	b^-
568.53 6	0.306 16	b^-
579.68 14	0.076 13	b^-
586.0 4	0.019 7	b^-
588.84 8	0.123 10	b^-
619.7 5	0.022 13	b^-
647.2 5	0.016 10	b^-
654.08 8	0.145 13	b^-
675.37 15	0.072 13	b^-
680.24 19	0.054 13	b^-
691.5 4	0.032 13	b^-
693.53 16	0.088 13	b^-
697.6 4	0.022 10	b^-
703.58 17	0.057 10	b^-
733.9 4	0.032 10	b^-
746		b^-
755.0 6	0.025 13	b^-
774.21 15	0.066 10	b^-
778.10 19	0.044 10	b^-
792.9 4	0.022 10	b^-
799.6 6	0.016 10	b^-
816.06 18	0.072 13	b^-
848.7 3	0.044 13	b^-
851.30 17	0.069 13	b^-
865.82 7	0.296 19	b^-
869		b^-
869.35 6	0.62 4	b^-
896.87 12	0.132 13	b^-
902.3 3	0.044 13	b^-
912.51 7	0.328 19	b^-
917.13 6	0.92 4	b^-
936.36 11	0.135 13	b^-
941.25 8	0.230 16	b^-
946.63 20	0.063 13	b^-
953.1 5	0.028 13	b^-
996.8 3	0.063 16	b^-
1076.38 22	0.088 16	b^-
1093.87 9	0.410 25	b^-
1098.77 11	0.214 16	b^-
1102.24 17	0.107 13	b^-
1114.29 10	1.47 7	b^-
1141.64 9	0.51 3	b^-
1145.44 18	0.132 19	b^-
1153.6 5	0.032 16	b^-
1160.96 18	0.098 13	b^-
1189.54 21	0.082 13	b^-
1194.94 20	0.088 13	b^-
1204.5 4	0.035 13	b^-
1218.7 5	0.038 16	b^-
1228.3 4	0.063 22	b^-
1311.07 24	0.085 16	b^-
1356.6 4	0.050 16	b^-
1361.9 6	0.035 16	b^-
1381.4 3	0.069 16	b^-
1385.5 3	0.076 16	b^-
1473.2 3	0.069 13	b^-
1548.9 4	0.076 19	b^-
1571.84 16	0.265 25	b^-
1578.1 5	0.050 19	b^-
1614.57 18	0.236 25	b^-
1646.5 3	0.066 13	b^-
1768.26 13	16.7 4	b^-
1783.4 6	0.038 16	b^-
1799.4 6	0.035 13	b^-
1812.54 18	0.180 19	b^-
1850.86 13	1.42 5	b^-
1887.3 3	0.069 13	b^-
1925.36 14	0.56 3	b^-
2004.75 14	5.36 13	b^-
2015.82 14	12.25 25	b^-
2041.2 5	0.032 10	b^-
2079.17 14	1.44 4	b^-
2252.26 14	2.29 7	b^-
2266.8 5	0.038 13	b^-
2321.90 16	0.62 3	b^-
2326.9 3	0.057 10	b^-
2475.26 16	0.312 16	b^-
2492.61 24	0.054 6	b^-
2497.56 17	0.173 13	b^-

X-rays from ¹³⁸Xe (14.08 m 8)
E (keV)	I (%)	Assignment

3.795	0.051 9	Cs L_l
4.142	0.033 4	Cs L_h
4.272	0.141 24	Cs L_a2
4.286	1.27 21	Cs L_a1
4.620	1.13 13	Cs L_b1
4.649	0.69 14	Cs L_b4
4.717	1.16 24	Cs L_b3
4.781	0.0103 17	Cs L_b6
4.934	0.25 4	Cs L_b2
5.281	0.161 19	Cs L_g1
5.542	0.19 4	Cs L_g2
5.553	0.28 6	Cs L_g3
30.270	1.24E-04 8	Cs K_a3
30.625	1.08 6	Cs K_a2
30.973	2.00 12	Cs K_a1
34.920	0.186 11	Cs K_b3
34.987	0.359 21	Cs K_b1
35.252	0.0038 3	Cs K_b5
35.818	0.111 7	Cs K_b2
35.907	0.0230 16	Cs K_b4

Betas from ¹³⁸Xe (14.08 m 8)
Eb endpoint (keV)	Ib (%)	Decay mode

261.62	0.23 17	b^-
279.04	0.46 14	b^-
432.42	3.07 13	b^-
506.95	9.5 4	b^-
743.32	32.7 13	b^-
747.88	0.28 3	b^-
975.99	0.23 3	b^-
1232.13	0.04 3	b^-
1397.87	0.16 3	b^-
1564.8	0.19 3	b^-
1660.46	0.08 5	b^-
1817.96	0.27 4	b^-
2078.89	0.06 3	b^-
2214.03	0.04 2	b^-
2319.78	20.1 7	b^-
2357.85	13.4 5	b^-
2434.65	0.02 1	b^-
2511.59	5.1 21	b^-
2754.29	9 6	b^-
2759.19	10	b^-

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