Table of Isotopes decay data

WWW Table of Radioactive Isotopes

225	Ac
89	Ac	136

Half life:

10.0 d 1

Jp:

(3/2-)

S_n (keV):

6663 8

S_p (keV):

4477 7

Prod. mode:

Naturally occurring

ENSDF citation:

NDS 60,617 (1990)

Literature cut-off date:

1-Jun-1989

Author(s):

Y.A. Akovali

References since cut-off:

²²⁵Ac decay from 1989-98 (NSR)


Decay properties:
Mode	Branching (%)	Q-value (keV)
a	100	5935.2 14
14C	6.0E-10 13

Most Recent ENSDF Data (12/2002)
Mode	Data set name	Display data
a	225AC A DECAY
	Tables:
	ENSDF data:
	Java applets:

TORI Data (1999) Gammas from ²²⁵Ac (10.0 d 1)
Eg (keV)	Ig (%)	Decay mode

10.6		a
26.0 1	0.00164 22	a
36.65 3	0.0174 22	a
38.53 3	0.0131 11	a
46.24 5	0.0044 22	a
49.09 5	0.0076 22	a
57.75 5	0.0044 22	a
62.95 3	0.447 22	a
64.28 5	0.033 3	a
69.79 10	0.0054 22	a
71.70 5	0.0142 11	a
73.5 1	0.0098 22	a
73.86 2	0.315 14	a
74.9 2	0.0174 22	a
82.6	0.16 4	a
87.41 3	0.254 12	a
94.90 5	0.095 9	a
96.15 5	0.031 3	a
99.63 5	0.62 3	a
99.91 5	1.01 5	a
100.96 5	0.070 11	a
103.46 10	0.0044 22	a
108.42 4	0.251 11	a
111.54 3	0.317 14	a
112.8 2	0.0022 11	a
119.85 10	0.020 4	a
119.87 5	0.054 9	a
123.75 5	0.072 7	a
124.82 5	0.0262 22	a
126.15 10	0.0076 22	a
129.25 10	0.0033 11	a
133.64 5	0.0142 22	a
134.86 5	0.031 3	a
138.2	0.022 11	a
144.7 2	~0.0005	a
145.17 5	0.146 7	a
150.04 2	0.80 3	a
152.63 5	0.0174 22	a
153.92 5	0.187 9	a
157.26 2	0.360 22	a
168.86 13	0.0185 22	a
170.98 20	0.008 3	a
178.36 4	0.0142 11	a
179.8 2	0.0076 22	a
186.38 4	0.020 4	a
188.00 5	0.54 3	a
195.78 5	0.163 11	a
197.77 12		a
197.77 12	0.060 5	a
198.7 1	0.024 5	a
216.90 5	0.32 7	a
224.64 5	0.096 9	a
231.3 2	0.0022 11	a
240.6 2	0.0076 22	a
243.2 1	0.0013 5	a
249.5 2	0.012 5	a
253.54 5	0.123 5	a
256.0 2	0.00033 11	a
273.5 3		a
279.26 4	0.0185 22	a
282.1 2	0.0044 22	a
284.8 1	0.0044 22	a
348.5 1	0.0033 11	a
354.8 2	0.0016 4	a
362.5 1	0.0065 22	a
375.2 1	0.0033 11	a
403.1 1	0.0014 4	a
406.1 1	0.0076 22	a
418.1 1	0.0054 11	a
452.4 1	0.118 10	a
458.8 2	0.0054 22	a
462.4 4	0.0017 9	a
469.5 3	0.0044 11	a
481.05 5	0.033 3	a
496.9 3	0.0016 8	a
515.40 5	0.0196 22	a
517.78 5	0.0142 22	a
522.3 1	0.0016 4	a
526.09 5	0.032 3	a
529.9 1	0.007 3	a
531.3 1	0.0044 11	a
538.1	<0.0011	a
538.1 1	<0.0022	a
552.0 1	0.0044 11	a
571.0 1	0.0044 11	a
594.2 1	0.0017 9	a
601.1 1	~0.0007	a
601.1 1	0.0031 9	a
603.3 1	0.0022 11	a
649.2 1	0.0014 4	a
679.7		a
679.7 1	0.00087 22	a
747.0 1	0.0013 4	a
753.7 3	0.00087 22	a
758.7 1	0.0054 11	a

X-rays from ²²⁵Ac (10.0 d 1)
E (keV)	I (%)	Assignment

10.381	0.45 6	Fr L_l
11.896	0.82 8	Fr L_a2
12.031	7.3 7	Fr L_a1
13.255	0.174 17	Fr L_h
13.877	0.126 12	Fr L_b6
14.319	0.36 6	Fr L_b4
14.443	1.88 18	Fr L_b2
14.770	7.0 7	Fr L_b1
14.967	0.34 3	Fr L_b5
14.978	0.38 6	Fr L_b3
17.302	1.59 16	Fr L_g1
17.635	0.136 24	Fr L_g2
17.800	0.15 3	Fr L_g3
17.839	0.33 4	Fr L_g6
82.496	0.00281 21	Fr K_a3
83.231	1.17 8	Fr K_a2
86.105	1.94 14	Fr K_a1
96.815	0.232 17	Fr K_b3
97.474	0.44 3	Fr K_b1
98.068	0.0149 12	Fr K_b5
100.214	0.167 12	Fr K_b2
100.548	0.056 5	Fr K_b4

Alphas from ²²⁵Ac (10.0 d 1)
Ea (keV)	Ia (%)

4902 5	0.0020 5
5021	<0.001
5031	<0.001
5067 5	0.003 1
5092 4	0.006 1
5131 5	0.0020 8
5161 5	0.0020 8
5193	<0.002
5202 5	0.0020 5
5211 3	0.030 3
5239 4	0.0030 8
5270 4	0.014 5
5286 3	0.23 1
5321 3	0.07 1
5343	<0.001
5356	<0.001
5378	<0.001
5391 4	0.0010 5
5415 4	0.0020 5
5427 4	<0.003
5436 4	0.07 2
5443 3	0.14 1
5468	<0.001
5489 4	0.0020 7
5497 4	<0.003
5517 7	~0.005
5525 5	0.007 3
5540 4	0.015
5545 4	0.03 1
5554 4	0.1
5563 4	0.034
5580 3	1.2 1
5598 4	0.04
5609 3	1.1 1
5637 2	4.4 3
5682 2	1.3 2
5724 3	3.1 5
5731 2	0.87 23
5732 2	1.32 10
5732 2	8.0 5
5790.6 22	8.6 9
5792.5 22	18.1 20
5805 2	0.3
5830 2	50.7 15

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