Table of Isotopes decay data

WWW Table of Radioactive Isotopes

186	Ta
73	Ta	113

Half life:

10.5 m 5

Jp:

(2-,3-)

S_n (keV):

5285 62

S_p (keV):

7.5E3 sy

Prod. mode:

Fast neutron activation

ENSDF citation:

NDS 82,1 (1997)

Literature cut-off date:

31-Aug-1997

Author(s):

C.M. Baglin

References since cut-off:

¹⁸⁶Ta decay from 1997-98 (NSR)


Decay properties:
Mode	Branching (%)	Q-value (keV)	References
b^-	100	3901 60	73Gu02

Most Recent ENSDF Data (12/2002)
Mode	Data set name	Display data
b^-	186TA B- DECAY
	Tables:
	ENSDF data:
	Java applets:

TORI Data (1999) Gammas from ¹⁸⁶Ta (10.5 m 5)
Eg (keV)	Ig (%)	Decay mode

91.0 5	1.9 8	b^-
92.7 3	1.40 25	b^-
122.30 7	25 4	b^-
183.16 9	3.0 5	b^-
184.2 3	0.50 25	b^-
195.0 1	0.75 25	b^-
197.88 10	50	b^-
214.84 12	42.5 15	b^-
268.8 2	0.80 25	b^-
274.07 13	6.75 25	b^-
277.0 1	1.25 25	b^-
292.6 3	3.5 5	b^-
293.0 4	<0.25	b^-
307.5 1	9.6 5	b^-
309.2 1	2.25 25	b^-
315.54 17	1.50 25	b^-
327.2 5	0.75 25	b^-
338.5 10	0.50 25	b^-
341.0 10	~0.25	b^-
383.2 5	0.50 25	b^-
402.0 10	0.75 25	b^-
412.06 17	0.50 25	b^-
417.80 20	12.5 10	b^-
440.0 10	0.80 15	b^-
442.0 10	0.80 15	b^-
448.0 11	0.50 25	b^-
456.9 4	2.15 25	b^-
460.0 5	~0.25	b^-
465.34 11	1.10 25	b^-
488.0 15	0.50 25	b^-
510.6 5	37.5 25	b^-
541.4 5	~0.25	b^-
547.0 4	<0.06	b^-
567.2 3	3.3 5	b^-
583.2 2	1.10 15	b^-
596.5 5	~0.25	b^-
601.0 5	0.50 25	b^-
610.44 19	3.40 25	b^-
615.30 7	28 1	b^-
618.3 3	0.50 25	b^-
622.0 5		b^-
634.2 6	0.50 25	b^-
641.6 10	~0.35	b^-
646.6 10	~0.15	b^-
649.5 4	~0.15	b^-
654.9 5	1.5 5	b^-
658.4 3		b^-
703.0 10	0.50 25	b^-
707.0 10	1.00 25	b^-
709.0 10	1.00 25	b^-
726.0 5	1.00 25	b^-
737.5 3	29 2	b^-
739.2 3	10 1	b^-
740.5 5	<4.5	b^-
745.0 10	~0.25	b^-
759.40 10	1.75 25	b^-
799.8 3	2.40 25	b^-
814.0 5	~0.25	b^-
823.0 5	~0.25	b^-
830.0 3	1.50 25	b^-
869.5 5	~0.25	b^-
884.11 10	1.95 25	b^-
893.0 10	0.75 10	b^-
907.75 25	~0.50	b^-
922.9 5	1.15 25	b^-
935.0 10	0.65 25	b^-
936.5 10	~0.25	b^-
947.5 10	~0.25	b^-
952.5 5	0.50 25	b^-
1046 1	~0.25	b^-
1092.5 10	~0.50	b^-
1124.5 15	~0.50	b^-
1163.13 15	~0.25	b^-
1176.28 20	~0.25	b^-
1199.5 10	~0.25	b^-
1210.0 15	~0.25	b^-
1213.0 15	~0.2	b^-
1224.0 15	~0.25	b^-
1231.0 15	~0.15	b^-
1238.0 15	~0.2	b^-
1247.5 15	~0.50	b^-
1285.73 21	~0.25	b^-
1298.0 11	~0.25	b^-
1319.0 15	~0.25	b^-
1322.0 15	~0.30	b^-
1398 1	~0.4	b^-
1409 1	~0.50	b^-
1429 1	~0.25	b^-
1485.0 15	~0.25	b^-
1507.0 15		b^-
1520.0 15	~0.25	b^-

X-rays from ¹⁸⁶Ta (10.5 m 5)
E (keV)	I (%)	Assignment

7.387	0.25 4	W L_l
8.335	0.59 7	W L_a2
8.398	5.3 6	W L_a1
8.724	0.104 13	W L_h
9.525	0.18 3	W L_b4
9.612	0.066 8	W L_b6
9.672	5.0 6	W L_b1
9.819	0.26 5	W L_b3
9.955	1.20 15	W L_b2
10.201	0.026 3	W L_b5
11.285	0.93 12	W L_g1
11.538	0.036 5	W L_g6
11.608	0.056 10	W L_g2
11.675	0.082 15	W L_g3
57.425	0.0057 5	W K_a3
57.981	7.6 7	W K_a2
59.318	13.3 12	W K_a1
66.950	1.48 14	W K_b3
67.244	2.9 3	W K_b1
67.685	0.067 7	W K_b5
69.067	0.99 9	W K_b2
69.273	0.149 15	W K_b4

Betas from ¹⁸⁶Ta (10.5 m 5)
Eb endpoint (keV)	Ib (%)	Decay mode

1629.8	2.3	b^-
1733.8	0.9 3	b^-
2238.85	58 6	b^-
2271.87	1.15 19	b^-
2292.28	4.8 8	b^-
2380.08	5.0 8	b^-
2577.99	2.3 5	b^-
2601.42	1.9 7	b^-
2614.44	0.5	b^-
2854.94	10.1 24	b^-
2885.36	1.6 5	b^-
3777.67	15 11	b^-

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