| |
|
|---|
| Half life: | 2.3565 d 4 | |
|---|
| Jp: | 5/2+ |
|---|
| Sn (keV): | 6216.8 10 |
|---|
| Sp (keV): | 5287.4 15 |
|---|
| Prod. mode: |
Thermal neutron activation
|
|---|
| | |
|---|
| ENSDF citation: | NDS 66,839 (1992) |
|---|
| Literature cut-off date: | 1-Jan-1992 |
|---|
| Author(s): | M.R. Schmorak |
|---|
| References since cut-off: |
239Np decay from 1992-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 100 | 721.8 9 |
59Ew90 65Da04 86LoZT |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 239Np (2.3565 d 4)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 7.861 2 |
|
b- |
| 18.430 2 |
|
b- |
| 44.665 2 |
0.13 1 |
b- |
| 49.415 2 |
0.13 2 |
b- |
| 57.276 2 |
0.130 7 |
b- |
| 57.29 2 |
0.0048(calc) |
b- |
| 61.461 2 |
1.29 2 |
b- |
| 67.846 2 |
0.092 23 |
b- |
| 88.05 2 |
0.006 2 |
b- |
| 101.95 2 |
0.0008(calc) |
b- |
| 106.125 2 |
27.2 4 |
b- |
| 106.48 2 |
0.049 8 |
b- |
| 124.434 8 |
0.01 |
b- |
| 166.369 2 |
0.017 7 |
b- |
| 181.711 7 |
0.081 4 |
b- |
| 209.753 2 |
3.42 5 |
b- |
| 226.378 8 |
0.28 2 |
b- |
| 227.83(calc) |
0.51(calc) |
b- |
| 228.183 1 |
10.76 18 |
b- |
| 254.418 3 |
0.110 6 |
b- |
| 272.848 3 |
0.077 4 |
b- |
| 277.599 1 |
14.38 21 |
b- |
| 285.460 2 |
0.79 2 |
b- |
| 315.879 2 |
1.60 3 |
b- |
| 322.264 3 |
0.0052(calc) |
b- |
| 334.309 2 |
2.07 3 |
b- |
| 392.4 5 |
0.0016 |
b- |
| 429.8 2 |
0.0039 |
b- |
| 434.9 3 |
0.013 |
b- |
| 448.2 2 |
0.00026 |
b- |
| 454.565 12 |
0.00082 |
b- |
| 461.9 4 |
0.0016 |
b- |
| 469.8 4 |
0.0011 |
b- |
| 484.3 3 |
0.0010 |
b- |
| 492.1 3 |
0.0060 |
b- |
| 497.8 2 |
0.0032 |
b- |
| 498.8 5 |
0.001 |
b- |
| 503.977 12 |
0.00078 |
b- |
|
X-rays from 239Np (2.3565 d 4)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 12.124 |
1.53 18 |
Pu Ll |
| 14.087 |
2.44 21 |
Pu La2 |
| 14.282 |
21.8 19 |
Pu La1 |
| 16.333 |
0.39 4 |
Pu Lh |
| 16.498 |
0.43 4 |
Pu Lb6 |
| 17.235 |
5.8 5 |
Pu Lb2 |
| 17.557 |
1.6 3 |
Pu Lb4 |
| 17.949 |
1.29 11 |
Pu Lb5 |
| 18.296 |
14.5 17 |
Pu Lb1 |
| 18.541 |
1.42 25 |
Pu Lb3 |
| 21.420 |
3.5 4 |
Pu Lg1 |
| 21.724 |
0.70 13 |
Pu Lg2 |
| 21.981 |
0.62 11 |
Pu Lg3 |
| 22.153 |
0.75 10 |
Pu Lg6 |
| 98.687 |
0.0603 19 |
Pu Ka3 |
| 99.525 |
15.1 3 |
Pu Ka2 |
| 103.734 |
24.2 5 |
Pu Ka1 |
| 116.244 |
2.87 6 |
Pu Kb3 |
| 117.228 |
5.66 13 |
Pu Kb1 |
| 117.919 |
0.219 9 |
Pu Kb5 |
| 120.539 |
2.21 5 |
Pu Kb2 |
| 120.969 |
0.81 3 |
Pu Kb4 |
Betas from 239Np (2.3565 d 4)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 165.7 |
0.003 |
b- |
| 209.96 |
1.58 7 |
b- |
| 216.3 |
0.0074 2 |
b- |
| 229.7 |
0.020 1 |
b- |
| 252 |
0.0027 |
b- |
| 330.21 |
40.5 10 |
b- |
| 391.67 |
11 3 |
b- |
| 436.34 |
45 3 |
b- |
| 646.09 |
1 |
b- |
| 664.52 |
2 |
b- |
| 713.94 |
2 1 |
b- |
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