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

241
95

Am

146

0.0

432.6 y 6

5/2-

α

5637.82 12.0

237
93

Np

144

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

General Comments

•
•

Alpha

E_α [keV]	I_α(abs) [%]	Daughter level [keV]	J^π	HF
4757.58 13	0.00004 3	799.82 4	9/2-	47
4800.99 13	86000E-9	755.685 19	7/2-	44
4834.15 13	0.0007	721.961 13	5/2-	9.5
4888.98 15		666.19 10	(5/2,7/2)+
4956.06 15		597.99 9	11/2+
4961.63 14		592.33 7	13/2+
4963.83 13		590.09 4	(7/2)-
5007.07 14	0.0001	546.12 6	(5/2)-	1000
5055.36 13		497.01 5	17/2-
5065.97 15	0.00011	486.21 9	(9/2)-	2300
5092.06 13	0.0004	459.693 24	7/2+	1000
5099.08 13	0.0004	452.545 22	9/2+	1000
5106.72 16		444.78 10	+
5117.21 13	0.0004	434.12 5	(11/2)-	1400
5132.8 2		418.2 1	+
5155.12 13	0.0007	395.53 4	15/2-	1400
5179.35 13	0.0003	370.928 23	3/2+	4600
5181.63 13	0.0009	368.602 20	5/2+	1600
5190.17 23	0.0006	359.7 1	(5/2)-	2700
5217.26 13		332.376 16	1/2+
5225.08 13	0.0013	324.420 23	(7/2)-	2100
5232.6 3		316.8 2	+
5244.13 13	0.0022 3	305.05 3	13/2-	1600
5280.99 13	0.0005	267.556 12	3/2-	12000
5321.87 13	0.014 3	225.957 16	11/2-	770
5388.25 13	1.66 3	158.497 11	9/2-	16.4
5416.28 13	0.01	129.99 3	11/2+	4000
5442.86 12	13.23 10	102.959 3	7/2-	4.3
5469.47 12	0.04	75.899 5	9/2+	2000
5485.56 12	84.45 10	59.54092 10	5/2-	1.3
5511.46 12	0.23 1	33.19629 22	7/2+	600
5544.11 12	0.38 1	0	5/2+	610

Gamma

E_γ [keV]	I_γ-(abs) [%]	Initial level [keV]	J^π	Final level [keV]	J^π	Mult.	δ	α_T	I_Tot [%]
26.34460 20	2.31 8	59.54092 10	5/2-	33.19629		E1		8 2
32.183	0.0174 4
33.1963 3	0.1215 28	33.19629 22	7/2+	0		M1+E2	0.13 3	175 24
42.704 5	0.0055 11	75.899 5	9/2+	33.19629		(M1+E2)	0.13 3	75 7
43.420 3	0.0669 29	102.959 3	7/2-	59.54092		M1+E2	0.45 5	180 23
51.01 3	0.000026 12	332.376 16	1/2+	281.356		E1		0.753 11
55.56 2	0.0181 18	158.497 11	9/2-	102.959		M1+E2	0.46 4	65 6
57.85 5	0.0052 15
59.5409 1	35.92 17	59.54092 10	5/2-	0		E1		1.16 7
64.83 2	0.00014 2	332.376 16	1/2+	267.556		E1		0.400 8
67.50 2	0.00042 10	225.957 16	11/2-	158.497		(M1+E2)	0.46 12	29 6
69.76 3	0.0029 4	102.959 3	7/2-	33.19629		(E1)		0.330 7
75.90 1	0.0006	75.899 5	9/2+	0		(E2)		53.1 11
96.79 3	0.000047 16	129.99 3	11/2+	33.19629
98.97 2	0.0203 4	158.497 11	9/2-	59.54092		E2		15.2 3
102.98 2	0.0195 4	102.959 3	7/2-	0		E1		0.1189 24
106.42 5	0.000015
109.70 7	4.9E-6	434.12 5	(11/2)-	324.420		[E2]		9.44 19
120.36 8	4.5E-6	444.78 10	+	324.420
123.05 1	0.00100 4	225.957 16	11/2-	102.959		E2		5.75 12
125.30 2	0.0041 2	158.497 11	9/2-	33.19629		(E1)		0.299 6
139.44 8	5.3E-6 11	592.33 7	13/2+	452.545		[E2]		3.37 7
146.55 3	0.00046 1	305.05 3	13/2-	158.497		E2		2.73 6
150.04 3	0.000073 5	225.957 16	11/2-	75.899		[E1]		0.197 4
154.27 20	5E-7	514.19 4	(3/2)-	359.7		[M1]		7.06 14
159.26 20	1.4E-6 5	592.33 7	13/2+	434.12		[E1]		0.171 4
161.54 10	1.5E-6	486.21 9	(9/2)-	324.420		[M1]		6.20 12
164.61 2	0.000066 3	267.556 12	3/2-	102.959		E2		1.70 4
165.81 6	0.000023 1	324.420 23	(7/2)-	158.497		[M1+E2]		3.7 22
169.56 3	0.00017 1	395.53 4	15/2-	225.957		E2		1.51 3
175.07 4	0.000018 3	305.05 3	13/2-	129.99		[E1]		0.137 3
190.4	2.2E-6 5
191.96 4	2.15E-5 10	497.01 5	17/2-	305.05		[E2]		0.932 19
196.76 8	4.9E-7	592.33 7	13/2+	395.53		[E1]		0.1045 21
201.70 14	8E-7
204.06 6	2.06E-6 6	395.53 4	15/2-	191.53		[E1]		0.0960 19
208.005 23	0.000786 9	267.556 12	3/2-	59.54092		M1+E2	0.156 5	2.98 6
221.46 3	4.34E-5 8	324.420 23	(7/2)-	102.959		[M1+E2]		1.5 10
232.81 5	4.82E-6 9	514.19 4	(3/2)-	281.356		[M1]		2.22 5
234.40 4	8.7E-7 8	267.556 12	3/2-	33.19629		M2		8.24 17
246.73 10	2.44E-6 7	514.19 4	(3/2)-	267.556		[M1]		1.88 4
248.52 3	1.46E-6 3	324.420 23	(7/2)-	75.899		[E1]		0.0612 12
261.00 7	1.29E-6 6	452.545 22	9/2+	191.53		[E2]		0.312 6
264.88 3	9.43E-6 12	324.420 23	(7/2)-	59.54092		[M1+E2]		0.9 7
267.54 4	2.68E-5 6	267.556 12	3/2-	0		E1+M2	0.490 15	1.06 6
270.63 15	5E-7 2
271.54	1.44E-6 5
275.77 8	6.32E-6 10	434.12 5	(11/2)-	158.497		[M1+E2]		0.8 6
278.04 15	1.15E-6 3	546.12 6	(5/2)-	267.556		[M1]		1.35 3
291.3 2	3.05E-6 8	324.420 23	(7/2)-	33.19629		[E1]		0.0430 9
292.77 6	1.42E-5 3	368.602 20	5/2+	75.899		[E2]		0.215 4
304.21 20	9.3E-7 2	434.12 5	(11/2)-	129.99		[E1]		0.0391 8
309.1 3	2.0E-6 3	368.602 20	5/2+	59.54092		[E1]		0.0377 8
322.56 3	0.000151 4	452.545 22	9/2+	129.99		(M1+E2)	0.6	0.702 12
324.69	1.8E-6 3
329.69	1.1E-6 2
332.35 3	0.000150 4	332.376 16	1/2+	0		E2		0.147 3
335.37 3	0.000496 7	368.602 20	5/2+	33.19629		M1+E2	0.46 17	0.69 8
337.7 2	4.88E-6 9	370.928 23	3/2+	33.19629		(E2)		0.140 3
350.71	1.39E-6 5
358.25 20	1.29E-6 5	434.12 5	(11/2)-	75.899		[E1]		0.0275 6
368.62 3	0.000214 5	368.602 20	5/2+	0		(M1)		0.622 12
370.94 3	5.20E-5 8	370.928 23	3/2+	0		M1+E2	0.43 21	0.53 7
374.83	3.13E-6 6
376.65 3	0.000137 3	452.545 22	9/2+	75.899		(M1)		0.586 12
383.81 3	2.81E-5 6	459.693 24	7/2+	75.899		[M1+E2]		0.33 23
389.0 3	4.9E-7
390.61 5	5.73E-6 10
400.78 10	1.4E-7 3	592.33 7	13/2+	191.53		[M1+E2]		0.29 21
406.35 15	1.37E-6 5	597.99 9	11/2+	191.53		[M1+E2]		0.28 20
411.27	1.8E-7 4
419.33 4	2.84E-5 4	452.545 22	9/2+	33.19629		[M1+E2]		0.26 18
426.47 4	0.000031 6	459.693 24	7/2+	33.19629		[M1+E2]		0.25 18
429.9 1	1.09E-6 5
440.63	5.6E-7 3
442.81 7	3.31E-6 8
446.15 6	1.1E-7 2	770.57 5	+	324.420
452.6 2	2.36E-6 7	452.545 22	9/2+	0		[E2]		0.0635 13
454.66 8	9.53E-6 12	514.19 4	(3/2)-	59.54092		[M1]		0.351 7
459.68 10	3.55E-6 7	459.693 24	7/2+	0		[M1+E2]		0.20 14
462.34 8	0.000001	592.33 7	13/2+	129.99		[M1+E2]		0.20 14
468.12 15	2.69E-6 6	597.99 9	11/2+	129.99		[M1+E2]		0.19 14
486.05	1.05E-6 6
487.13 4	6.2E-7 5	590.09 4	(7/2)-	102.959		[M1]		0.291 6
494.39	1.0E-7 2
501.39	1.4E-7 2
512.5 3	2.1E-6 4	546.12 6	(5/2)-	33.19629		[E1]		0.0133 3
514.0 5	3.8E-6 2	514.19 4	(3/2)-	0		[E1]		0.0132
522.06 15	9.9E-7 5	597.99 9	11/2+	75.899		[M1+E2]		0.14 10
525.14	1.6E-7 3
529.17 20	6.9E-7 5	853.36 15	11/2-	324.420		[E2]		0.0437 9
532.44	8E-8 2
546.12 6	2.5E-7 3	546.12 6	(5/2)-	0		[E1]		0.0117 2
548.15	5E-8 2
555.25	9E-8 2
563.46 2	4.4E-7 2	721.961 13	5/2-	158.497		[E2]		0.0378 8
573.94 20	1.28E-6 5	799.82 4	9/2-	225.957		[M1+E2]		0.11 8
582.89	1.01E-6 6
586.59 20	1.24E-6 5	646.03 17	(9/2)-	59.54092		[E2]		0.0346 7
590.09 4	2.80E-6 6	590.09 4	(7/2)-	0		[E1]		0.0101 2
597.19 2	7.29E-6 11	755.685 19	7/2-	158.497		[M1+E2]		0.10 7
600.26	2.2E-7 3
619.01 2	0.000060 2	721.961 13	5/2-	102.959		[M1+E2]		0.09 7
627.18 20	5.1E-7 2	853.36 15	11/2-	225.957		[M1+E2]		0.09 6
632.93 15	1.24E-6 5	666.19 10	(5/2,7/2)+	33.19629
636.9	2.1E-7 3
641.32 4	7.04E-6 10	799.82 4	9/2-	158.497		[M1+E2]		0.08 6
652.73 2	3.76E-5 9	755.685 19	7/2-	102.959		[M1+E2]		0.08 6
662.40 2	0.000367 6	721.961 13	5/2-	59.54092		(+M1+E2)		0.23 5
666.2 2	9.5E-7 7	666.19 10	(5/2,7/2)+	0
669.83 2	5.1E-7 7	799.82 4	9/2-	129.99		[E1]		0.0080 2
675.78 13	8.5E-7 5	805.77 12	(7/2,9/2)+	129.99		[E2M1]		0.07 5
679.79 2	3.31E-6 8	755.685 19	7/2-	75.899		[E1]		0.00776 16
688.72 4	3.23E-5 6	721.961 13	5/2-	33.19629		[E1]		0.00758 16
693.46	3.54E-6 8
696.14 2	5.17E-6 8	755.685 19	7/2-	59.54092		[M1+E2]		0.07 5
709.42 5	6.41E-6 19
712.5	2.0E-7 3
721.96 2	0.000196 5	721.961 13	5/2-	0		[E1]		0.0070 2
729.72 15	1.37E-6 5	805.77 12	(7/2,9/2)+	75.899		[M1]		0.099 2
731.44	4.6E-7 4
736.68	1.28E-6 5
737.34 5	7.94E-6 11	770.57 5	+	33.19629
740.51	1.9E-7 3
742.9 3	3.5E-7
745.02	9E-8 2
750.39	6E-8 2
755.68 2	7.84E-6 11	755.685 19	7/2-	0		[E1]		0.0064 1
759.5 1	1.81E-6 5
763.31	2.3E-7 2
766.62 4	5.01E-6 6	799.82 4	9/2-	33.19629		[E1]		0.00623 12
770.57 10	4.81E-6 7	770.57 5	+	0
772.57 12	2.79E-6 4	805.77 12	(7/2,9/2)+	33.19629		[M1]		0.0847 17
774.67	1.1E-7 2
777.39	1.5E-7 2
780.53	3.1E-7 2
782.2 5	1.5E-7
786.00 15	6.2E-7	861.65 19	(5/2,7/2)+	75.899
789.0 3	4.2E-7 6
792.6	3E-8 1
794.92 20	9.4E-7
801.94 20	1.23E-6 7	861.65 19	(5/2,7/2)+	59.54092
803.19	1.6E-7 3
805.77 12	3.1E-7	805.77 12	(7/2,9/2)+	0		[M1E2]		0.05 3
811.9 3	6.3E-7 6
819.33	4.3E-7 6
822.21	2.4E-7 6
828.60 12	2.1E-7 4	861.65 19	(5/2,7/2)+	33.19629
835.21	3E-8 1
838.88	4E-8 1
841.14	1.0E-7 3
843.7	9.7E-7 8
846.86	1.6E-7 3
847.4 5	2.7E-7 3
851.6 10	4.1E-7 6
854.95	2.3E-7 4
856.26	1.0E-7 3
861.34 20	8E-8 3	920.88 20	+	59.54092
861.80 12	6.1E-7 6	861.65 19	(5/2,7/2)+	0
870.63	1.50E-6 4
882	4E-8 1
886.53	1.5E-7 3
887.68 20	3.3E-7 6	920.88 20	+	33.19629
890.38	3.2E-7 5
894.47	3E-8 1
898.17	6E-8 2
902.61	3.3E-7 3
909.95	5E-8 1
912.4	2.8E-7 3
920.88 20	1.9E-7 3	920.88 20	+	0
928.95	9E-8 2
939.2	5E-8 1
946.06	1.0E-8 2	946 2	+	0
952.72	3E-8 1
955.91	6.0E-7 5
962.19	4E-8 1	962 3	+	0
969.09	3E-8 1
980.84	3E-8 1
1014.33	1.0E-6 2	1014 3	+	0