Table of Isotopes decay data

WWW Table of Radioactive Isotopes

227	Pa
91	Pa	136

Half life:

38.3 m 3

Jp:

(5/2-)

S_n (keV):

7270 14

S_p (keV):

3654 9

Prod. mode:

Charged particle reaction

ENSDF citation:

NDS 65,669 (1992)

Literature cut-off date:

31-Aug-1990

Author(s):

E. Browne

References since cut-off:

²²⁷Pa decay from 1990-98 (NSR)


Decay properties:
Mode	Branching (%)	Q-value (keV)	References
a	85 2	6580.0 21	89Ah05 90Sh16 63Su10
e	15 2	1019 8

Most Recent ENSDF Data (12/2002)
Mode	Data set name	Display data
a	227PA A DECAY
	Tables:
	ENSDF data:
	Java applets:
e	227PA EC DECAY
	Tables:
	ENSDF data:
	Java applets:

TORI Data (1999) Gammas from ²²⁷Pa (38.3 m 3)
Eg (keV)	Ig (%)	Decay mode

8.0	0.007	a
12.5		a
21.1 1	0.067 24	a
22.3 1	0.13 4	a
38.4 2	0.037 18	a
42.4 1	0.13 3	a
45.6 2	~0.031	a
45.6 2	~0.13	a
46.6 2	0.092 24	a
48.3 1	0.09 3	a
50.7 1		a
50.7 1	0.12 3	a
54.3 1	0.147 24	a
56.6 2	~0.12	a
57.5		a
59.5 2	0.104 24	a
59.5 2	0.153 24	a
60.5 3	0.061 24	a
64.62 5	6	a
67.6 1	0.42 5	a
74.9 1	0.20 4	a
77.0 2	0.049 24	a
80.0 1	0.147 24	a
84.8 1	0.40 6	a
84.8 1	0.86 12	a
89.1 2	0.13 4	a
107.0 5	~0.15	a
110.05 5	1.24 9	a
125.1 1	0.38 6	a
130.7 1	0.26 6	a

X-rays from ²²⁷Pa (38.3 m 3)
E (keV)	I (%)	Assignment

10.871	0.40 7	Ac L_l
12.500	0.70 12	Ac L_a2
12.651	6.2 10	Ac L_a1
14.082	0.126 23	Ac L_h
14.601	0.111 19	Ac L_b6
15.191	0.77 15	Ac L_b4
15.212	1.6 3	Ac L_b2
15.711	5.0 9	Ac L_b1
15.790	0.31 5	Ac L_b5
15.931	0.75 15	Ac L_b3
18.405	1.15 21	Ac L_g1
18.734	0.30 6	Ac L_g2
18.922	0.30 6	Ac L_g3
18.997	0.25 5	Ac L_g6
86.910	0.00180 6	Ac K_a3
87.675	0.642 16	Ac K_a2
90.886	1.05 3	Ac K_a1
102.101	0.127 3	Ac K_b3
102.841	0.244 6	Ac K_b1
103.461	0.0084 4	Ac K_b5
105.738	0.0924 23	Ac K_b2
106.098	0.0314 13	Ac K_b4

Alphas from ²²⁷Pa (38.3 m 3)
Ea (keV)	Ia (%)

6299 5	0.8
6326 5	0.4
6336 5	0.7
6356.7 3	7.9 3
6376 5	2.6
6401.7 3	9.4 4
6415.8 3	15.1 4
6423.8 3	11.7 4
6465.8 3	50.2 16

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