| |
|
|---|
| Half life: | 49.3 h 3 | |
|---|
| Jp: | 0+ |
|---|
| Sn (keV): | 6836 4 |
|---|
| Sp (keV): | 9.3E3 6 |
|---|
| Prod. mode: |
Fission product
Thermal neutron activation
|
|---|
| | |
|---|
| ENSDF citation: | NDS 75,199 (1995) |
|---|
| Literature cut-off date: | 31-May-1995 |
|---|
| Author(s): | B. Singh |
|---|
| References since cut-off: |
172Er decay from 1995-98 (NSR)
|
|---|
| |
|---|
Decay properties:
|
|---|
| Mode | Branching (%) | Q-value (keV) |
References |
|---|
| b- | 100 | 891 5 |
76MeZC 72Ba01 |
| |
|---|
Most Recent ENSDF Data (12/2002)
|
|---|
| Mode | Data set name | Display data |
|---|
|
|---|
| TORI Data (1999)
Gammas from 172Er (49.3 h 3)
|
|---|
| Eg (keV) |
Ig (%) | Decay mode |
|---|
|
| 29.37 5 |
0.0076 21 |
b- |
| 38.66 5 |
0.0072 21 |
b- |
| 59.692 6 |
2.69 8 |
b- |
| 62.524 4 |
0.206 4 |
b- |
| 68.107 4 |
3.29 7 |
b- |
| 74.940 8 |
0.118 4 |
b- |
| 80.19 5 |
0.0042 21 |
b- |
| 83.15 25 |
0.0029 8 |
b- |
| 89.09 4 |
0.0046 4 |
b- |
| 113.71 13 |
0.0013 8 |
b- |
| 118.9 2 |
0.0008 4 |
b- |
| 127.805 3 |
2.13 5 |
b- |
| 134.68 6 |
0.0101 4 |
b- |
| 145.83 15 |
0.0013 8 |
b- |
| 164.013 5 |
0.674 25 |
b- |
| 167.40 7 |
0.0072 8 |
b- |
| 177.16 15 |
0.0010 3 |
b- |
| 179.6 4 |
0.0010 4 |
b- |
| 187.4 4 |
0.0008 8 |
b- |
| 202.724 5 |
1.03 3 |
b- |
| 206.09 10 |
0.0029 4 |
b- |
| 239.5 2 |
0.0042 8 |
b- |
| 239.9 2 |
0.0114 8 |
b- |
| 295.3 3 |
0.0025 17 |
b- |
| 300.19 6 |
0.0206 8 |
b- |
| 307.15 10 |
0.0101 21 |
b- |
| 344.817 17 |
0.627 17 |
b- |
| 370.3 2 |
0.00122 25 |
b- |
| 383.501 4 |
2.35 5 |
b- |
| 407.338 3 |
42.1 8 |
b- |
| 416.8 5 |
0.009 3 |
b- |
| 446.025 9 |
2.96 7 |
b- |
| 463.7 |
<0.0021 |
b- |
| 472.71 4 |
0.0312 17 |
b- |
| 475.445 2 |
1.040 21 |
b- |
| 479.76 10 |
0.0114 13 |
b- |
| 496.3 3 |
0.0025 13 |
b- |
| 526.2 4 |
0.0029 21 |
b- |
| 535.143 9 |
0.293 7 |
b- |
| 547.54 |
<0.00029 |
b- |
| 610.062 2 |
44.2 10 |
b- |
| 714.45 25 |
0.0017 13 |
b- |
| 734.9 |
<0.00013 |
b- |
| 797.42 10 |
0.0105 4 |
b- |
| 831 |
~0.00021 |
b- |
| 894 |
~0.0013 |
b- |
|
X-rays from 172Er (49.3 h 3)
|
|---|
| E (keV) |
I (%) | Assignment |
|---|
|
| 6.341 |
0.27 3 |
Tm Ll |
| 7.133 |
0.67 5 |
Tm La2 |
| 7.180 |
6.0 5 |
Tm La1 |
| 7.310 |
0.088 8 |
Tm Lh |
| 8.026 |
0.35 5 |
Tm Lb4 |
| 8.102 |
4.1 4 |
Tm Lb1 |
| 8.176 |
0.069 5 |
Tm Lb6 |
| 8.231 |
0.54 8 |
Tm Lb3 |
| 8.468 |
1.19 10 |
Tm Lb2 |
| 9.437 |
0.74 7 |
Tm Lg1 |
| 9.730 |
0.109 18 |
Tm Lg2 |
| 9.779 |
0.16 3 |
Tm Lg3 |
| 49.274 |
0.0085 3 |
Tm Ka3 |
| 49.773 |
17.1 5 |
Tm Ka2 |
| 50.742 |
30.3 8 |
Tm Ka1 |
| 57.300 |
3.20 9 |
Tm Kb3 |
| 57.505 |
6.18 17 |
Tm Kb1 |
| 57.898 |
0.122 5 |
Tm Kb5 |
| 59.028 |
2.08 6 |
Tm Kb2 |
| 59.210 |
0.552 24 |
Tm Kb4 |
Betas from 172Er (49.3 h 3)
|
|---|
| Eb endpoint (keV) |
Ib (%) | Decay mode |
|---|
|
| 93.58 |
0.0117 13 |
b- |
| 176.5 |
0.014 3 |
b- |
| 280.94 |
46.4 20 |
b- |
| 355.86 |
46.4 24 |
b- |
| 364.77 |
0.028 18 |
b- |
| 411.32 |
0.026 4 |
b- |
| 415.55 |
4 |
b- |
| 483.66 |
3.3 16 |
b- |
| 891 |
7 |
b- |
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