|
|
Half life: | 2.144E+6 y 7 | |
Jp: | 5/2+ |
Sn (keV): | 6574 50 |
Sp (keV): | 4862.1 3 |
Prod. mode: |
Fast neutron activation
|
| |
ENSDF citation: | NDS 74,461 (1995) |
Literature cut-off date: | 1-Sep-1994 |
Author(s): | Y.A. Akovali |
References since cut-off: |
237Np decay from 1994-98 (NSR)
|
|
Decay properties: |
Mode | Branching (%) | Q-value (keV) |
|
a | 100 | 4959.1 12 |
|
SF | <2E-10 | |
|
|
Data sets: |
Mode | Data set name | Display data |
|
Gammas from 237Np (2.144E+6 y 7)
|
Eg (keV) |
Ig (%) | Decay mode |
|
5.5 |
|
a |
6.68 5 |
|
a |
8.22 5 |
|
a |
9.0 |
|
a |
10.7 |
|
a |
17.40 5 |
|
a |
22.6 |
|
a |
24.14 10 |
|
a |
29.374 20 |
15.0 10 |
a |
29.6 |
|
a |
32.46 |
|
a |
36.24 10 |
|
a |
43.2 |
|
a |
46.53 6 |
0.11 1 |
a |
48.96 10 |
|
a |
54.40 10 |
|
a |
57.10 2 |
0.39 1 |
a |
62.59 10 |
0.006 3 |
a |
63.92 6 |
0.012 2 |
a |
70.49 10 |
0.012 3 |
a |
74.54 10 |
0.011 3 |
a |
86.477 10 |
12.4 4 |
a |
87.99 3 |
0.14 1 |
a |
94.66 5 |
0.6 2 |
a |
106.15 25 |
0.053 5 |
a |
108.7 7 |
0.068 15 |
a |
109.10 10 |
|
a |
115.4 4 |
0.0026 8 |
a |
117.702 20 |
0.16 1 |
a |
131.101 25 |
0.085 9 |
a |
134.285 20 |
0.067 7 |
a |
139.9 1 |
0.005 |
a |
141.74 10 |
|
a |
143.249 20 |
0.43 2 |
a |
151.414 20 |
0.232 12 |
a |
153.37 10 |
0.0050 10 |
a |
153.6 2 |
|
a |
155.239 20 |
0.092 9 |
a |
162.41 |
|
a |
162.504 12 |
0.032 4 |
a |
169.159 10 |
0.073 7 |
a |
170.59 6 |
0.020 4 |
a |
170.7 3 |
|
a |
176.12 6 |
0.018 3 |
a |
180.81 10 |
0.020 4 |
a |
186.8 2 |
|
a |
186.86 35 |
0.003 3 |
a |
191.46 5 |
0.025 4 |
a |
193.26 5 |
0.049 5 |
a |
194.7 2 |
|
a |
194.95 3 |
0.184 10 |
a |
196.86 5 |
0.020 3 |
a |
199.95 |
|
a |
199.95 6 |
0.004 1 |
a |
201.62 5 |
0.044 5 |
a |
202.0 2 |
0.0048 19 |
a |
209.19 5 |
0.016 2 |
a |
212.29 5 |
0.155 10 |
a |
214.01 5 |
0.045 9 |
a |
219.8 |
|
a |
222.6 2 |
0.0020 10 |
a |
229.94 5 |
0.014 4 |
a |
237.86 2 |
0.063 7 |
a |
248.95 10 |
0.0050 14 |
a |
250.5 3 |
|
a |
257.09 20 |
0.0064 14 |
a |
257.30 15 |
|
a |
262.44 20 |
0.0068 14 |
a |
279.65 20 |
0.002 2 |
a |
|
X-rays from 237Np (2.144E+6 y 7)
|
E (keV) |
I (%) | Assignment |
|
11.372 |
1.15 13 |
Pa Ll |
13.127 |
1.94 16 |
Pa La2 |
13.291 |
17.3 14 |
Pa La1 |
14.953 |
0.41 4 |
Pa Lh |
15.350 |
0.32 3 |
Pa Lb6 |
16.007 |
4.6 4 |
Pa Lb2 |
16.104 |
0.75 16 |
Pa Lb4 |
16.639 |
0.93 8 |
Pa Lb5 |
16.708 |
15.7 17 |
Pa Lb1 |
16.931 |
0.70 15 |
Pa Lb3 |
19.571 |
3.7 4 |
Pa Lg1 |
19.888 |
0.30 7 |
Pa Lg2 |
20.101 |
0.29 7 |
Pa Lg3 |
20.217 |
0.79 11 |
Pa Lg6 |
91.491 |
0.0053 4 |
Pa Ka3 |
92.282 |
1.64 12 |
Pa Ka2 |
95.863 |
2.67 19 |
Pa Ka1 |
107.595 |
0.326 23 |
Pa Kb3 |
108.422 |
0.62 4 |
Pa Kb1 |
109.072 |
0.0225 18 |
Pa Kb5 |
111.486 |
0.239 17 |
Pa Kb2 |
111.870 |
0.084 7 |
Pa Kb4 |
Alphas from 237Np (2.144E+6 y 7)
|
Ea (keV) |
Ia (%) |
|
4514.5 20 |
0.04 2 |
4572.1 |
|
4573.8 20 |
0.054 |
4581.0 20 |
0.40 4 |
4598.6 20 |
0.34 4 |
4620 |
|
4639.4 20 |
6.18 12 |
4664.0 20 |
3.32 10 |
4694.4 20 |
0.48 20 |
4708.3 20 |
|
4712.3 20 |
|
4741.3 20 |
0.019 |
4766.0 15 |
8 3 |
4771.0 15 |
25 6 |
4788.0 15 |
47 9 |
4803.3 20 |
1.56 |
4817.3 20 |
2.5 4 |
4862.8 20 |
0.24 |
4873.0 20 |
0.44 |
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