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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Low energy check sources type OSGI-P
Application
OSGI-P sources are used for efficiency and energy calibration of gamma-spectrometric equipment, testing of ionizing chambers and scintillation counters. Robust design is suitable for “in field” calibrations and tests.
Description
Source is a transparent disc with diameter 25 mm and height 3 mm. Radionuclide is deposited on active part made of light ceramic pellet. Active part is mounted in center of acrylic capsule and sealed with epoxy resin. Dimensions of active part are 2 mm in diameter and 1 mm in height.
Certificates and documentation
- NRC Certificate SSDR LA-1491-S-106-S OSGI-RT Refernce Sources EN
- Pattern approval certificate of measuring instruments ОС.С.38.001.А No 72829 RU
| Radionuclide | Half-life, days | Photon energy, keV | Photons per 100 disintegration | Activity, kBq * | Impurities, % ** | Coefficients of the photon radiation transmission *** | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44Ti | 21915 ± 400 | 67.884 | 0.930 ± 0.020 | 5 – 100 | ≤ 0.001 | 0.963 | ||||||||
| 109Cd | 461.4 ± 1.2 | 88.034 | 0.03626 ± 0.00020 | 5 – 1000 | ≤ 0.001 | 0.965 | ||||||||
| 241Am | 157850 ± 230 | 59.537 | 0.3578 ± 0.0009 | 5 – 370 | ≤ 0.05 | 0.962 | ||||||||
| 243Am | 2692000 ± 8000 | 74.66 | 0.672 | 5 – 50 | ≤ 5 | 0.964 | ||||||||
| * 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 -10 ÷ +30 %. ** The ratio of the total activity of impurity radionuclides to the activity of the basic radionuclide in the source. *** Coefficients of the photon radiation transmission in OSGI-P source:
ISO classification: С34343 Recommended working life
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Rectangular low energy check sources
Description
The source is a 2 mm thick plexiglass plate. The ceramic active part with the embedded radionuclide preparation is placed in the center of the body, the sealing is made with epoxy resin. The diameter of the active part is 2 mm, the height is 0.5 mm.
| Radionuclide | Half-life, days | Photon energy, keV | Photons per 100 disintegration | Activity, kBq * | Impurities, % ** | Coefficients of the photon radiation transmission;*** | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44Ti | 21915 ± 400 | 67.884 | 0.930 ± 0.020 | 5 – 100 | ≤ 0.001 | 0.963 | ||||||||
| 109Cd | 461.4 ± 1.2 | 88.034 | 0.03626 ± 0.00020 | 5 – 1000 | ≤ 0.001 | 0.965 | ||||||||
| 241Am | 157850 ± 230 | 59.537 | 0.3578 ± 0.0009 | 5 – 370 | ≤ 0.05 | 0.962 | ||||||||
| 243Am | 2692000 ± 8000 | 74.66 | 0.672 | 5 – 50 | ≤ 5 | 0,964 | ||||||||
| * 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 -10 ÷ +30 %. ** The ratio of the total activity of impurity radionuclides to the activity of the basic radionuclide in the source. *** Coefficients of the photon radiation transmission in source:
Recommended working life
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Low energy check sources type OSGI-RT
Application
Gamma standard sources are used as working standards for verification and graduation of photon measuring equipment, for certification of measuring methods and measurement accuracy control of photon emission. In particular, the set is intended for testing and calibration of precision instruments, spectrometers and radiometers, ionization chambers and scintillation counters.
Description
The source is produced in the form of a flat round capsule made of aluminum, 25 mm in diameter (29 mm by special order) and 3 mm thick. The source active part of less than 3 mm in diameter is embedded between two polyimide foils with total thickness of 100 ± 10 μm.
| Radionuclide | Half-life, days | Photon energy, keV | Photons per 100 disintegration | Activity, kBq * | Equivalent dose rate, μSv/h ** | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 44Ti | 21900 ± 15 | 68.868 ± 0.014 78.36 ± 0.03 511.00 (Annihil) 1157.020 ± 0.015 |
0.930 ± 0.0015 0.964 ± 0.0011 184.54 ± 0.10 0.999 ± 0.004 |
1 – 300 | ≤ 10.2 | |||||||||||||||||||
| 55Fe | 1002.7 ± 2.3 | (Mn Kα) 5.8988 (Mn Kβ) 6.49-6.54 |
0,1656 ± 0.0027 0.0340 ± 0.007 |
1 – 1000 | ≤ 0.02 | |||||||||||||||||||
| 109Cd | 461.4 ± 1.2 | 88.0336 ± 0.0011 | 0.03626 ± 0.00020 | 1 – 1000 | ≤ 0.04 | |||||||||||||||||||
| 241Am | 157850 ± 230 | 26.3446 ± 0.0002 59.5409 ± 0.0001 |
0.0240 ± 0.0003 0.3578 ± 0.0009 |
1 – 300 | ≤ 0.12 | |||||||||||||||||||
| 243Am | 2692000 ± 8000 | 43.53 ± 0.02 74.66 ± 0.02 |
0.0590 ± 0.0015 0.672 |
1 – 50 | ≤ 0.04 | |||||||||||||||||||
| * 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 % Equivalent 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. ISO classification: С35242 ** Estimated for maximum activity at 10 cm from source surface. Recommended working life and Intercalibration interval *
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