Decay details

Evaluation made within an IAEA Coordinated Reserch Project — For atomic radiation data, please refer to the pdf files linked below

Parent

Energy [keV]

Half-life

J^π

Decay

Q [keV]

Daughter

239
93

Np

146

0.0

2.356 d 3

5/2+

β-

722.5 10.0

239
94

Pu

145

Evaluation: V.P. Chechev. N.K. Kuzmenco Publication cut-off: --

General Comments

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•

Beta -

<E_β-> [keV]	I_β-(abs) [%]	Daughter level [keV]	J^π	E_{β-, max} [keV]	logft	Transition type
		387.41 2	9/2+	335.1 5		2^nd unique
		75.706 3	7/2+	646.8 5
		163.76 2	9/2+	558.7 5		2^nd unique
		57.276 2	5/2+	665.2 5
		0	1/2+	722.5 5		2^nd unique
44.2 2	0.0026	556.2	(7/2)-	166.3 5	9.7	1^st unique
56.8 2	1.56 16	511.81 6	7/2+	210.7 5	7.3
58.7 2	0.0074	505.2	(5/2)-	217.3 5	9.7
62.5 2	0.02	492.2 3	3/2-	230.3 5	9.3	1^st unique
74.7 2	0.0027	469.8 4	(1/2)-	252.7 5	9.9	1^st unique
98.3 2	38.8 9	391.586 3	7/2-	330.9 5	6.3	1^st unique
111.5 2	9.4 14	330.125 4	7/2+	392.4 5	7.4
125.6 2	43.0 22	285.460 2	5/2+	437.0 5	6.9
218.3 2	6.5 10	7.861 2	3/2+	714.6 5	8.4

Gamma

E_γ [keV]	I_γ-(abs) [%]	Initial level [keV]	J^π	Final level [keV]	J^π	Mult.	δ	α_T	I_Tot [%]
7.861 2	0.0122 12	7.861 2	3/2+	0		M1+E2	0.055 3	5.72E3 40
18.430 4	0.02	75.706 3	7/2+	57.276		[M1+E2]
44.663 5	0.13 1	330.125 4	7/2+	285.460		M1+E2	0.20 3	86 8
49.415 3	0.145 35	57.276 2	5/2+	7.861		M1+E2	0.50 3	126 8
57.273 4	0.12 3	57.276 2	5/2+	0		E2		222 4
57.3	0.012	387.41 2	9/2+	330.125		M1(+E2)
61.460 2	1.29 2	391.586 3	7/2-	330.125		E1		0.473 7
67.841 7	0.10 3	75.706 3	7/2+	7.861		E2		98.5 14
88.06 3	0.006 2	163.76 2	9/2+	75.706		M1+E2	0.5 2	12 6
101.96 2	0.008 2	387.41 2	9/2+	285.460		E2		14.42 21
106.125 2	25.9 3	391.586 3	7/2-	285.460		E1(+M2)	-0.007 7	0.26 3
106.50 3	0.049 8	163.76 2	9/2+	57.276		E2		11.8 3
124.4	0.01	511.81 6	7/2+	387.41		E2		13.6 3
166.39 6	0.016 7	330.125 4	7/2+	163.76		M1(+E2)	0.5 4	6.23 13
181.70 3	0.086 2	511.81 6	7/2+	330.125		M1		4.78 10
209.753 2	3.42 3	285.460 2	5/2+	75.706		M1+E2	0.37 8	2.93 13
226.38 2	0.255 14	511.81 6	7/2+	285.460		M1+E2		2.58 8
227.83	0.5 1	391.586 3	7/2-	163.76		M1+E2		0.0762 15
228.183 1	11.32 22	285.460 2	5/2+	57.276		M1+E2	0.28 7	2.41 9
254.40 3	0.110 3	330.125 4	7/2+	75.706		M1+E2		1.85 4
272.84 3	0.077 3	330.125 4	7/2+	57.276		M1+E2	0.16 5	1.52 3
277.599 1	14.4 1	285.460 2	5/2+	7.861		M1+E2	0.23 10	1.42 7
285.460 2	0.78 1	285.460 2	5/2+	0		E2		0.248 5
311.70 2	0.002 2	387.41 2	9/2+	75.706		(M1+E2)
315.880 3	1.59 1	391.586 3	7/2-	75.706		E1(+M2)		0.0372 8
322.3 2	0.0052	330.125 4	7/2+	7.861		(E2)		0.170 4
334.310 3	2.04 2	391.586 3	7/2-	57.276		E1(+M2)		0.0329 7
392.4 5	0.0016	556.2	(7/2)-	163.76		(E1)
429.5 5	0.0039	505.2	(5/2)-	75.706
434.7 5	0.013	492.2 3	3/2-	57.276		E1(+M2)
447.6 5	0.00026	505.2	(5/2)-	57.276
454.2 5	0.00082	511.81 6	7/2+	57.276		(M1)
461.9 5	0.0016	469.8 4	(1/2)-	7.861		(E1)
469.8 5	0.0011	469.8 4	(1/2)-	0		(E1)
484.3 5	0.001	492.2 3	3/2-	7.861		(E1)
492.3 5	0.006	492.2 3	3/2-	0		(E1)
497.8 5	0.0032	505.2	(5/2)-	7.861
498.7	0.001	556.2	(7/2)-	57.276		(E1)
504.2 5	0.00078	511.81 6	7/2+	7.861		(E2)