| |
|
|---|
| Half life: | 7.22 m 2 | |
|---|
| E(level): | 20 15 keV |
|---|
| Jp: | 1(+) |
|---|
| Sn (keV): | 5056 15 |
|---|
| Sp (keV): | 5537 15 |
|---|
| Prod. mode: |
Thermal neutron activation
|
|---|
| | |
|---|
| ENSDF citation: | NDS 59,947 (1990) |
|---|
| Literature cut-off date: | 1-Oct-1993 |
|---|
| Author(s): | E.N. Shurshikov and N.V. Timofeeva |
|---|
| Update: | 1-Oct-1993, E. Shurshikov |
|---|
| References since cut-off: |
240Np decay from 1993-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 99.89 3 | 2200 15 |
70Sc12 81Hs02 |
| IT | 0.11 3 | |
|
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 240mNp (7.22 m 2)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 20 15 |
0* |
IT |
| 42.824 8 |
0.074 16 |
b- |
| 98.860 13 |
0.17 3 |
b- |
| 152.63 2 |
<0.020 |
b- |
| 251.47 7 |
0.86 3 |
b- |
| 263.37 7 |
1.139 20 |
b- |
| 289.21 10 |
0.017 4 |
b- |
| 302.98 7 |
1.00 4 |
b- |
| 309.99 9 |
0.044 4 |
b- |
| 340.70 10 |
0.060 6 |
b- |
| 361.55 10 |
0.036 6 |
b- |
| 475.0 3 |
0.011 3 |
b- |
| 496.7 3 |
0.0100 20 |
b- |
| 507.2 1 |
0.70 9 |
b- |
| 518.2 3 |
0.0060 20 |
b- |
| 554.60 7 |
20.9 5 |
b- |
| 573.4 2 |
0.0080 20 |
b- |
| 580.7 2 |
0.0070 20 |
b- |
| 597.40 7 |
11.7 3 |
b- |
| 606.10 7 |
0.67 7 |
b- |
| 658.5 |
<0.018 |
b- |
| 758.61 8 |
1.18 3 |
b- |
| 789.59 10 |
0.18 3 |
b- |
| 796.2 |
<0.0010 |
b- |
| 813.41 10 |
0.18 3 |
b- |
| 817.2 |
<0.10 |
b- |
| 817.89 10 |
1.28 3 |
b- |
| 837.6 2 |
0.008 3 |
b- |
| 841.11 10 |
0.150 17 |
b- |
| 857.48 10 |
0.489 20 |
b- |
| 860.7 |
<0.0050 |
b- |
| 867.2 2 |
0.0090 20 |
b- |
| 890.6 2 |
0.0170 20 |
b- |
| 895.3 1 |
0.061 10 |
b- |
| 900.37 10 |
0.160 20 |
b- |
| 910.1 1 |
0.140 20 |
b- |
| 915.98 9 |
1.02 3 |
b- |
| 928.55 10 |
0.150 20 |
b- |
| 938.02 10 |
1.21 5 |
b- |
| 942.39 10 |
0.096 9 |
b- |
| 959.0 2 |
0.0073 20 |
b- |
| 961.62 10 |
0.130 7 |
b- |
| 985.7 5 |
0.015 3 |
b- |
| 989.2 1 |
0.081 5 |
b- |
| 1028.3 5 |
0.0070 10 |
b- |
| 1036.5 3 |
0.0030 20 |
b- |
| 1046.62 10 |
0.097 18 |
b- |
| 1061.6 2 |
0.029 7 |
b- |
| 1072.2 1 |
0.017 3 |
b- |
| 1088.3 2 |
0.032 3 |
b- |
| 1094.2 2 |
0.020 3 |
b- |
| 1113.2 2 |
0.018 3 |
b- |
| 1131.0 2 |
0.062 5 |
b- |
| 1137.0 4 |
0.0140 20 |
b- |
| 1159.2 2 |
0.0060 20 |
b- |
| 1167.4 2 |
0.0070 20 |
b- |
| 1180.2 2 |
0.020 5 |
b- |
| 1182.1 5 |
0.0070 20 |
b- |
| 1198.0 3 |
0.0090 20 |
b- |
| 1210.5 5 |
0.015 4 |
b- |
| 1223.0 2 |
0.018 3 |
b- |
| 1305.8 2 |
0.023 6 |
b- |
| 1321.1 1 |
0.034 3 |
b- |
| 1328.9 2 |
0.0090 20 |
b- |
| 1340.0 10 |
0.0060 20 |
b- |
| 1357.2 2 |
0.013 3 |
b- |
| 1398.5 5 |
0.0050 20 |
b- |
| 1417.2 1 |
0.023 5 |
b- |
| 1428.3 1 |
0.028 4 |
b- |
| 1438.5 |
<0.0010 |
b- |
| 1445.3 1 |
0.380 10 |
b- |
| 1455.1 5 |
0.0040 10 |
b- |
| 1483.0 1 |
0.027 4 |
b- |
| 1488.2 1 |
0.200 10 |
b- |
| 1496.9 1 |
1.33 3 |
b- |
| 1515.9 1 |
0.015 5 |
b- |
| 1539.62 9 |
0.839 20 |
b- |
| 1558.8 1 |
0.0060 20 |
b- |
| 1568.6 2 |
0.0060 10 |
b- |
| 1584.1 2 |
0.0170 20 |
b- |
| 1590.5 1 |
0.097 4 |
b- |
| 1604.8 3 |
0.037 5 |
b- |
| 1607.6 2 |
0.055 5 |
b- |
| 1626.6 2 |
0.0050 10 |
b- |
| 1633.33 10 |
0.154 5 |
b- |
| 1667.6 1 |
0.019 3 |
b- |
| 1711.0 10 |
0.0020 10 |
b- |
| 1732.4 2 |
0.0020 10 |
b- |
| 1737.2 3 |
0.0040 10 |
b- |
| 1752.9 2 |
0.0054 12 |
b- |
| 1765.2 2 |
0.0070 11 |
b- |
| 1775.3 2 |
0.0030 10 |
b- |
| 1796.2 3 |
0.0030 10 |
b- |
| 1807.9 4 |
0.0020 10 |
b- |
| 1812.8 1 |
0.0050 20 |
b- |
| 1844.5 5 |
0.0020 10 |
b- |
| 1861.1 3 |
0.0040 10 |
b- |
| 1874.9 3 |
0.0120 10 |
b- |
| 1911.4 3 |
0.0140 10 |
b- |
| 1918.0 10 |
0.0008 4 |
b- |
| 1953.6 2 |
0.0023 5 |
b- |
| 1978.0 10 |
0.00040 20 |
b- |
| 1996.7 4 |
0.0010 4 |
b- |
| 2041.7 2 |
0.0060 10 |
b- |
| 2074.8 2 |
0.0031 5 |
b- |
| 2086.7 2 |
0.0008 4 |
b- |
| 2117.5 10 |
0.0007 4 |
b- |
* Relative intensity |
X-rays from 240mNp (7.22 m 2)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 12.124 |
0.73 18 |
Pu Ll |
| 14.087 |
1.2 3 |
Pu La2 |
| 14.282 |
10.5 24 |
Pu La1 |
| 16.333 |
0.27 6 |
Pu Lh |
| 16.498 |
0.20 5 |
Pu Lb6 |
| 17.235 |
2.8 7 |
Pu Lb2 |
| 17.557 |
0.12 3 |
Pu Lb4 |
| 17.949 |
0.62 14 |
Pu Lb5 |
| 18.296 |
10.0 23 |
Pu Lb1 |
| 18.541 |
0.10 3 |
Pu Lb3 |
| 21.420 |
2.4 6 |
Pu Lg1 |
| 21.724 |
0.051 14 |
Pu Lg2 |
| 21.981 |
0.045 12 |
Pu Lg3 |
| 22.153 |
0.51 13 |
Pu Lg6 |
| 98.687 |
0.0032 14 |
Pu Ka3 |
| 99.525 |
0.8 3 |
Pu Ka2 |
| 103.734 |
1.3 5 |
Pu Ka1 |
| 116.244 |
0.15 7 |
Pu Kb3 |
| 117.228 |
0.30 13 |
Pu Kb1 |
| 117.919 |
0.012 5 |
Pu Kb5 |
| 120.539 |
0.12 5 |
Pu Kb2 |
| 120.969 |
0.044 18 |
Pu Kb4 |
Betas from 240mNp (7.22 m 2)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 102.4 |
0.0038 7 |
b- |
| 223.6 |
0.0080 20 |
b- |
| 265.5 |
0.055 8 |
b- |
| 302.2 |
0.0130 10 |
b- |
| 412 |
0.031 5 |
b- |
| 423.66 |
0.041 5 |
b- |
| 444.7 |
0.0050 20 |
b- |
| 509.57 |
0.084 9 |
b- |
| 586.63 |
0.260 10 |
b- |
| 612.28 |
0.070 10 |
b- |
| 661.13 |
0.31 3 |
b- |
| 680.33 |
2.30 10 |
b- |
| 694.14 |
0.160 20 |
b- |
| 731.83 |
0.579 20 |
b- |
| 781.55 |
0.36 4 |
b- |
| 809.25 |
0.20 3 |
b- |
| 898.9 |
0.034 5 |
b- |
| 979.2 |
0.0100 20 |
b- |
| 997 |
0.028 7 |
b- |
| 1083.03 |
0.014 5 |
b- |
| 1088.05 |
0.180 10 |
b- |
| 1130.55 |
0.100 20 |
b- |
| 1261.15 |
1.26 5 |
b- |
| 1281.94 |
1.40 10 |
b- |
| 1319.68 |
3.80 20 |
b- |
| 1359.29 |
2.50 20 |
b- |
| 1571.15 |
0.1 |
b- |
| 1622.66 |
31.0 20 |
b- |
| 2177.18 |
42 |
b- |
| 2220 |
10 |
b- |
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