RITVERC JSC10, Kurchatova str., 194223,
St. Petersburg, Russia
Phone: +7 812 297-44-63
Fax: +7 812 297-58-87
Email: info@ritverc.com
Url: www.ritverc.com
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Alpha Sources type ABPb0.P.37
Description
The source is produced as titanium alloy disk, with uniformly deposited radionuclide 210Pb, hermetically fixed in the surface layer. Sources must not be exposed to any aggressive environment or contamination of the working surface.
| D × d, mm | h, mm | Nominal activity *(1)(2) | Code | ||
|---|---|---|---|---|---|
| Alpha radionuclides, Bq | Beta radionuclides, Bq | ||||
| 34 × 25 | 1 | 25 - 150 | 50 - 300 | ABPb0.P.37 | |
| * Tolerance: ±10 %. 1. The source may contain thorium-230, the activity of which does not exceed 10% of the total activity of alpha-emitting radionuclides. 2. The source may contain uranium-234, the activity of which does not exceed 5% of the activity of polonium-210. Recommended working life: 10 years. Sources of other activity and in housings of other types can be supplied by special order. |
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Beta Particle Standards (Area), Source type BSr0.P.39
Description
The source is produced as aluminum alloy disk, with uniformly deposited radionuclides 90Sr + 90Y, hermetically fixed in the surface layer. The radioactive spot can be deposited on the main disk itself as long as on a separate aluminum substrate, which is glued to the main disk. Sources must not be exposed to any aggressive environment or contamination of the working surface.
| D × d, mm | h, mm | Nominal activity * | Code | ||
|---|---|---|---|---|---|
| µCi | kBq | ||||
| 35 × 12 | 1.5 | 0.01 – 0.3 | 0.37 – 11.1 | BSr0.P.39 | |
| * Tolerance: ±30 %. ISO classification: C22212. Recommended working life: 10 years. Radionuclide purity Strontium-90 + Yttrium-90 :99.9 %. Sources of other activity and in housings of other types can be supplied by special order. |
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Beta Particle Standards (Point)
Description
The source is a flat aluminum ring with a diameter of 25 mm (29 mm by special order) and a thickness of 3 mm. The active part in the source is thermally sealed between two polyimide films with a total thickness of 100 ± 10 microns. The diameter of the active part doesn't exceed 3 mm.
| Radionuclide | Decay mode | Half-life, days | Photon energy, keV | Probabilities (gamma per decay) | Nominal activity, kBq * | Exposure dose rate, µSv/h ** | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22Na | EC | 950.57 ± 0.23 | 511 (annihil) 1274.537 ± 0.003 |
1.798 ± 0.002 0.99940 ± 0.00014 |
1-1000 | ≤ 35.0 | ||||||||||||||||||
| 44Ti | EC | 21900 ± 15 | 68.868 ± 0.014 78.36 ± 0.03 1157.020 ± 0.015 |
0.930 ± 0.0015 0.964 ± 0.0011 0.99875 ± 0.0003 |
1-300 | ≤ 10.2 | ||||||||||||||||||
| 60Co | β- | 1925.23 ± 0.27 | 1173.228 ± 0.003 1332.492 ± 0.004 |
0.9985 ± 0.0003 0.999826 ± 0.000006 |
1-500 | ≤ 19.0 | ||||||||||||||||||
| 65Zn | EC | 243.86 ± 0.20 | 511 (annihil) 1115.539 ± 0.002 |
0.0284 ± 0.0004 0.5060 ± 0.0022 |
1-1000 | ≤ 10.0 | ||||||||||||||||||
| 113Sn | EC | 115.09 ± 0.04 | 391.698 ± 0.003 | 0.6494 ± 0.0017 | 1-500 | ≤ 2.2 | ||||||||||||||||||
| 137Cs | β- | 10990 ± 40 | 661.657 ± 0.003 | 0.8499 ± 0.0020 | 1-1000 | ≤ 10.0 | ||||||||||||||||||
| 207Bi | EC | 11800 ± 300 | 569.698 ± 0.002 1063.656 ± 0.003 1770.228 ± 0.009 |
0.9776 ± 0.0003 0.7458 ± 0.0049 0.0687 ± 0.0002 |
1-100 | ≤ 2.6 | ||||||||||||||||||
| * Other activities are available on request. The nominal value of the radionuclide activity in the source within the specified limits is determined by the consumer when the source is ordered. Tolerance on activity ±20 % ** Exposure dose rate - equivalent dose rate of photon radiation at a distance of 0.1 m Limit of error of measuring result for confidence probability р = 0.95: 7.3 or 1.5 % — at certification, attestation in accredited metrological centers or attestation as working standards of the 0-th category, respectively.
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