From: Numerical modeling of radionuclide migration through a borehole disposal site
Disused low dose sources | ||||
---|---|---|---|---|
Radionuclide | Total initial activity (Bq) | Application | Form | Unit pieces |
Cs-137 | 5.66 × 1012 | Level gauges | Sealed | 30 |
Co-60 | 1.75 × 106 | Non-Destructive Testing (NDT) | Sealed | 2 |
Cs-137/Co-60 | 4.09 × 10°/4.90 × 10-1 | - | Sealed | 2 |
Cs-137/Am-241 | 3.70 × 1011/1.85 × 1012 | - | Sealed | 3 |
Cs-137/Am 241:Be | 3.00 × 101/ 1.80 × 103 | Nuclear gauges | Sealed | 1 |
Am-241 | 3.50 × 101 | Smoke detectors | Sealed | 105 |
Sr-90 | 1.25 × 104 | Thickness gauges | Sealed | 33 |
Ir-192 | 2.26 × 106 | NDT | Sealed | 1 |
Cd-109 | 6.66 × 102 | Research | Sealed | 6 |
Am-241 | 1.67 × 103 | Nuclear gauge | Sealed | 1 |
I-131 | 6.21 × 109 | - | Unsealed | 2 |
Cf-252 | 2.22 × 1010 | - | Sealed | 2 |
Ra-226 | 7.03 × 109 | - | Sealed | 19 needles |
H-3 | 3.70 × 107 | Nuclear gauge | Unsealed (liquid) | 2750 L |
C-14 | 2.60 × 107 | - | Unsealed (gas) | 7empty cylinders |
Disused high dose sources | ||||
Co-60 | 2.78 × 108 | Gamma cell-research | Sealed | 1 |
Co-60 | 1.85 × 108 | Teletherapy | Sealed | 1 |
Co-60 | 2.22 × 108 | Food irradiator | Sealed | 1 |
I-129* | 4.25 × 1010 | - | sealed | 1 |
Fe-59 | 2.22 × 104 | - | sealed | 2 |
Co-57 | 1.11 × 102 | - | sealed | 3 |
Zn-65 | n3.70 × 102 | - | sealed | 1 |
Sr-89 | 4.77 × 103 | - | sealed | 1 |
Tl-204 | 7.40 × 10-1 | - | sealed | 2 |
P-32 | 1.18 × 103 | Research | Unsealed | 4 |
S-35 | 9.25 × 10-6/ml | - | Unsealed | 5 |
Ca-45 | 1.85 × 102 | - | Unsealed | 3 |
Na-22 | 3.7 × 10° | - | Unsealed | 4 |
In-113 m | 2.22 × 103 | - | Unsealed | 12 |