RITVERC JSC
RITVERC JSC
10, 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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X-ray and low energy photon Sources

X-ray sources

Sources type OSGI-RT

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 Decay mode Half-life, days Photon energy, keV Photons per 100 disintegration Activity, kBq * Equivalent dose rate, μSv/h 
55Fe EC 1002.7 ± 2.3 5.8988
6.49-6.54		 0.1656 ± 0.0027
0.0340 ± 0.007		 1 – 1000 ≤ 0.02
57Co EC 271.80 ± 0.05 14.41295 ± 0.00031
122.06065 ± 0.00012
136.47356 ± 0.00029		 0.0915 ± 0.0017
0.8551 ± 0.0006
0.1071 ± 0.0015		 1 – 1000 ≤ 1.7
65Zn EC 243.86 ± 0.20 511 (annihil)
1115.539 ± 0.002		 0.0284 ± 0.0004
0.5060 ± 0.0022		 1 – 1000 ≤ 10.0
109Cd EC 461.4 ± 1.2 88.0336 ± 0.0011 0.03626 ± 0.00020 1 – 1000 ≤ 0.04
133Ba EC 3848.7 ± 1.2 80.9979 ± 0.0011
276.3989 ± 0.0012
302.8508 ± 0.0005
356.0129 ± 0.0007
383.8485 ± 0.0012		 0.329 ± 0.003
0.0716 ± 0.0005
0.1834 ± 0.0013
0.6205 ± 0.0019
0.0894 ± 0.0006		 1 – 1000 ≤ 8.8
153Gd EC 240.4 ± 1 97.431 ± 0.021
103.18012 ± 0.00017		 0.29
0.211 ± 0.006		 1 – 500 ≤ 1.0
241Am α 157850 ± 230 26.3446 ± 0.0002
59.5409 ± 0.0001		 0.0240 ± 0.0003
0.3578 ± 0.0009		 1 – 300 ≤ 0.12
243Am α 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

Recommended working life and Intercalibration interval *
Radionuclide Recommended working life, years Intercalibration interval, years
228Th, 241Am, 243Am 5 (with activity less than 10 kBq)
3 (with activity more than 10 kBq)		 2
1
57Co, 109Cd, 153Gd 5 2
55Fe 10 2
133Ba 12 2
* Recommended working life and intercalibration interval of the multinuclide source are determined by the shortest working life and interval of individual radionuclides in the source. When supplying sources with a higher activity of the radionuclide, in agreement with the customer, a reduction of recommended working life is allowed.

 

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