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
92

U

147

0.0

23.46 min 5

5/2+

β-

1261.5 16.0

239
93

Np

146

Evaluation: V.Chechev, V. Chechev, MMB� Publication cut-off: --

General Comments

•
•

Beta -

<E_β-> [keV]	I_β-(abs) [%]	Daughter level [keV]	J^π	E_{β-, max} [keV]	logft	Transition type
43.7 5	0.0060 5	1096.99 3	-	164.5 16
57.3 5	0.0059 4	1049.24 4	(9/2-)-	212.3 16		1^st unique
59.9 5	0.0077 4	1040.37 4	(5/2-,7/2)+	221.1 16
67.6 5	0.0074 4	1013.64 8	-	247.9 16
74.0 5	0.0262 9	992.158 22	(7/2-)-	269.3 16		1^st unique
81.7 5	0.0008 2	966.55 5	(7/2,9/2-)-	295.0 16		1^st unique
82.4 5	0.211 3	964.234 20	(7/2-)-	297.3 16		1^st unique
83.9 5	0.0284 7	959.18 3	+	302.3 16
113.4 5	0.0005 2	863.46 6	(3/2,5/2,7/2)+	398.1 16
117.8 5	0.0264 4	849.44 9	+	412.0 16
119.6 5	0.215 3	844.10 3	(5/2,7/2)+	417.4 16
127.4 5	0.228 3	819.26 3	(7/2)+	442.2 16
168.0 5	0.0118 11	695.229 23	(7/2-)-	566.3 16		1^st unique
179.0 5	0.261 6	662.282 17	(5/2-)-	599.2 16	7.35
212.6 5	0.0247 7	563.89 4	+	697.6 16
224.3 5	0.0029 4	530.29 6	+	731.2 16
228.6 5	0.063 2	517.998 20	(7/2-)-	743.5 16		1^st unique
244.0 5	0.0033 4	474.36 6	+	787.1 16
374.0 5	2.2 4	117.727 20	7/2-	1143.9 16	7.4	1^st unique
390.4 5	72.8 19	74.664 1	5/2-	1186.5 16	5.91
406.8 5	9.4 15	31.1310 12	7/2+	1230.4 16	6.83
418.6 5	14.4 22	0	5/2+	1261.5 16	6.7

Gamma

E_γ [keV]	I_γ-(abs) [%]	Initial level [keV]	J^π	Final level [keV]	J^π	Mult.	δ	α_T	I_Tot [%]
31.1310 12	0.072 4	31.1310 12	7/2+	0		M1+E2	0.17 1	263 13
43.06 2	0.013 2	117.727 20	7/2-	74.664		M1+E2	0.38 38	154 18
43.533 1	4.35 28	74.664 1	5/2-	31.1310		E1		1.14 3
46.6	0.009 4
55.37 5	8.36E-5 20	173.10 4	9/2-	117.727		M1+E2	0.6 2	90 30
71.210 2	0.00193 4	71.210 2	9/2+	0		E2		71.9 14
74.664 1	51.6 13	74.664 1	5/2-	0		E1		0.276 6
86.72 7	0.055 5	117.727 20	7/2-	31.1310		E1		0.186 4
111.0 2	0.0202 5	563.89 4	+	452.736
117.727 20	0.113 9	117.727 20	7/2-	0		E1		0.0841 17
134.71 13	0.0019 3
142.5 1	0.0045 6
170.15 5	0.031 1	241.36 5	(11/2-)-	71.210
174.07 6	0.0097 3
186.15 4	0.0288 7	260.799 17	(3/2)-	74.664		[M1+E2]		2.6 16
187.28 8	0.0056 3	448.178 16	(3/2-)-	260.799		[M1+E2]		2.6 16
197.28 12	0.0024 3	438.83 5	(11/2+)+	241.36
201.18 6	0.0005 2	863.46 6	(3/2,5/2,7/2)+	662.282
220.52 4	0.0282 7
236.28 14	0.00092 18
239.86 5	0.00087 23	819.26 3	(7/2)+	579.40
255.37 5	0.0011 2	819.26 3	(7/2)+	563.89
258.44 6	0.00073 18	1040.37 4	(5/2-,7/2)+	781.93
260.80 2	0.0031 2	260.799 17	(3/2)-	0		[E1]		0.0549 11
262.89 19	0.0008 3
265.44 17	0.0009 3
296.93 13	0.0014 2	992.158 22	(7/2-)-	695.229		[M1+E2]		0.7 5
301.95 3	0.0011 3	964.234 20	(7/2-)-	662.282		[M1+E2]		0.6 5
312.05 3	0.0006	1096.99 3	-	784.94
326.21 7	0.0044 2	844.10 3	(5/2,7/2)+	517.998
330.14 14	0.00069 13
332.06 14	0.0012 2
345.13 8	0.0039 2	1040.37 4	(5/2-,7/2)+	695.229
348.23 18	0.0007 3
351.33 15	0.0007 2
361.83 8	0.0044 3
373.51 4	0.025 6	448.178 16	(3/2-)-	74.664		[M1+E2]		0.35 22
378.06 6	0.0101 4	452.736 2	(5/2+,7/2-)+	74.664
381.27 16	0.0006 2	452.736 2	(5/2+,7/2-)+	71.210
393.01 18	0.0006 2
395.19 11	0.0021 2	959.18 3	+	563.89
399.13 13	0.0016 3	474.36 6	+	74.664
400.55 15	0.0009 2
404.84 18	0.0009 3
434.71 4	0.0012 2	1096.99 3	-	662.282		(E1)		0.0184 4
445.81 12	0.0011 2
448.18 2	0.0090 3	448.178 16	(3/2-)-	0		[E1]		0.0173 4
452.17 12	0.0016 2
455.63 6	0.0008 3	530.29 6	+	74.664
474.36 6	0.0017 2	474.36 6	+	0
478.13 19	0.00055 23
479.55 14	0.0010 2
486.87 3	0.0618 14	517.998 20	(7/2-)-	31.1310		[E1]		0.0147 4
490.33 13	0.0007 1
492.76 7	0.0050 2	563.89 4	+	71.210
499.1 1	0.0021 2	530.29 6	+	31.1310
502.12 17	0.0006 2
504.76 8	0.0052 3	579.40 4	(9/2-)-	74.664		[E2]		0.0488 10
506.80 14	0.0010 2
518.00 2	0.0045 3	517.998 20	(7/2-)-	0		[E1]		0.01300 19
522.12 10	0.0024 2	695.229 23	(7/2-)-	173.10		[M1+E2]		0.14 10
532.86 10	0.0023 2	563.89 4	+	31.1310
541.32 10	0.0029 3
544.48 9	0.0036 3	662.282 17	(5/2-)-	117.727		[M1+E2]		0.13 9
547.99 12	0.0020 3	579.40 4	(9/2-)-	31.1310		[E1]		0.01170 24
558.46 17	0.0006 2
560.63 7	0.0058 3	1013.64 8	-	452.736
563.89 4	0.0004 2	563.89 4	+	0
567.88 18	0.0004 1
575.27 5	0.0131 4
577.15 14	0.0014 3
585.49 14	0.0012 2
587.62 2	0.0193 5	662.282 17	(5/2-)-	74.664		[M1+E2]		0.11 7
588.70 8	0.0055 3	849.44 9	+	260.799
591.82 19	0.0009 4
599.13 15	0.0007 2
602.79 8	0.0048 3
604.85 6	0.00096 27
607.96 15	0.0013 3	849.44 9	+	241.36
614.53 17	0.0006 2
618.03 16	0.0007 2
624.11 7	0.0062 3	695.229 23	(7/2-)-	71.210		[E1]		0.0091 2
629.00 11	0.0027 3
631.10 3	0.067 2	662.282 17	(5/2-)-	31.1310		[E1]		0.00892 17
644.253 30	0.0019 4	1096.99 3	-	452.736
646.26 10	0.0029 3	819.26 3	(7/2)+	173.10
649.79 19	0.0009 4
662.28 2	0.170 5	662.282 17	(5/2-)-	0		[E1]		0.00815 16
664.17 9	0.0054 4	695.229 23	(7/2-)-	31.1310		[E1]		0.00811 16
668.76 18	0.00055 18
670.88 20	0.0006 3
691.01 6	0.0074 3
692.61 13	0.0016 3
695.23 2	0.0036 3	695.229 23	(7/2-)-	0		[E1]		0.00745 15
701.21 10	0.0024 2
703.63 10	0.0023 2	964.234 20	(7/2-)-	260.799		[E2]		0.0234 5
707.38 9	0.0022 2	781.93 4	+	74.664
710.35 15	0.003	784.94 5	+	74.664
714.22 9	0.0030 3
722.85 4	0.0270 7	964.234 20	(7/2-)-	241.36		[E2]		0.0222 4
727.52 10	0.0026 3	849.44 9	+	122.5
730.95 6	0.0090 3
746.06 11	0.0043 5
748.09 3	0.0890 4	819.26 3	(7/2)+	71.210
752.84 8	0.0013 3	1013.64 8	-	260.799
764.04 11	0.0026 3
768.15 11	0.0020 2
769.52 17	0.0004 1
772.94 9	0.0029 2	844.10 3	(5/2,7/2)+	71.210
774.77 4	0.015 4	849.44 9	+	74.664
779.57 14	0.0006 1	1040.37 4	(5/2-,7/2)+	260.799
788.19 7	0.0049 2	819.26 3	(7/2)+	31.1310
791.13 5	0.0075 2	964.234 20	(7/2-)-	173.10
795.13 15	0.0008 2
812.89 3	0.0685 3	844.10 3	(5/2,7/2)+	31.1310
819.26 3	0.129 3	819.26 3	(7/2)+	0
829.59 17	0.00046 13
831.89 9	0.0021 2
841.45 4	0.0025 4	959.18 3	+	117.727
844.10 3	0.139 3	844.10 3	(5/2,7/2)+	0
846.39 4	0.0312 8	964.234 20	(7/2-)-	117.727		[M1+E2]		0.04 3
849.44 9	0.0020 2	849.44 9	+	0
862.56 18	0.0004 1
867.11 11	0.00076 8	1040.37 4	(5/2-,7/2)+	173.10
869.57 9	0.0016 1	992.158 22	(7/2-)-	122.5
874.43 3	0.0033 2	992.158 22	(7/2-)-	117.727		[M1+E2]		0.038 23
884.45 5	0.0086 2	959.18 3	+	74.664
887.97 3	0.0023 2	959.18 3	+	71.210
889.49 4	0.0209 5	964.234 20	(7/2-)-	74.664		[M1+E2]		0.036 22
895.15 15	0.0008 2	966.55 5	(7/2,9/2-)-	71.210
913.68 9	0.0019 1
917.40 8	0.0027 1	992.158 22	(7/2-)-	74.664		[M1+E2]		0.034 22
920.95 8	0.0026 1	992.158 22	(7/2-)-	71.210		[E1]		0.00450 9
922.83 13	0.0006 1	1040.37 4	(5/2-,7/2)+	117.727
928.05 3	0.0051 2	959.18 3	+	31.1310
931.51 5	0.0053 3	1049.24 4	(9/2-)-	117.727		[M1+E2]		0.032 19
933.09 3	0.0262 6	964.234 20	(7/2-)-	31.1310		[E1]		0.00439 9
938.98 8	0.00031 8	1013.64 8	-	74.664
948.88 19	0.00024 10
959.18 3	0.0078 3	959.18 3	+	0
960.99 5	0.0105 3	992.158 22	(7/2-)-	31.1310		[E1]		0.00417 9
964.23 2	0.0905 20	964.234 20	(7/2-)-	0		[E1]		0.00415 8
970.07 14	0.0009 2
974.58 4	0.00040 8	1049.24 4	(9/2-)-	74.664		[E2]		0.0123 5
988.51 14	0.00044 9
992.16 2	0.0028 1	992.158 22	(7/2-)-	0		[E1]		0.00395 8
1002.40 13	0.00049 9
1005.27 13	0.0006 1
1009.38 18	0.0003 1
1040.37 4	0.0011 1	1040.37 4	(5/2-,7/2)+	0
1065.76 12	0.00059 8	1096.99 3	-	31.1310		[M1+E2]		0.023 13
1096.99 3	0.0016 1	1096.99 3	-	0		[M1+E2]		0.022 13
1101.99 16	0.00031 1