γ sources in paper matrix

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Radionuclides are deposited on a filter paper, which is then hot-sealed between two thin polyester foils.

Source activity is measured with Nal scintillators or HPGe semi-conductors.

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Catalog references	On request
Active diameter
43 mm • 1.7 in	From 15 to 160 mm From 0.6 to 6.3 in
45 mm • 1.8 in
47 mm • 1.9 in
50 mm • 2 in
53 mm • 2.1 in
60 mm • 2.4 in
120 mm • 4.7 in
Diamètre Extérieur
51 mm • 2.01 in	From 20 to 170 mm From 0.8 to 6.7 in
53 mm • 2.1 in
60 mm • 2.4 in
63 mm • 2.5 in
70 mm • 2.8 in
130 mm • 5.1 in
Activité
10 kBq • 0.3 µCi	From 1kBq to 1MBq From 0.03 to 27 µCi
20 kBq • 0.5 µCi
40 kBq • 1.1 µCi
Radionucléide
Mix 12ML01*	⁵¹Cr, ⁵⁴Mn, ⁵⁷Co, ⁶⁰Co, ⁶⁵Zn, ⁸⁵Sr, ⁸⁸Y, ¹⁰⁹Cd, ¹¹³Sn, ¹³⁴Cs, ¹³⁹Ce, ²⁴¹Am (Non-exhaustive list)

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Radionuclide	Activity	K=2 measurement uncertainty	Reference
12ML01*	10 kBq • 0.3 µCi	≤ 10%	12ML01 ESB [Type] [10KBQ]
	20 kBq • 0.5 µCi	≤ 10%	12ML01 ESB [Type] [20KBQ]
	40 kBq • 1.1 µCi	≤ 10%	12ML01 ESB [Type] [40KBQ]

Standard manufacturing tolerance: ± 30% IAEA Category : 5 • ISO2919 Classification : C11111			How to compose the reference ? Replace *[Type]* with the codes *M43, M50, M53, M60, M120, M45-51 or M47-53* according to the required geometry. For example: *12ML01 ESB M47-53 [10KBQ].*
* The 12ML01 mixture – ²⁴¹Am, ¹⁰⁹Cd, ¹³⁹Ce, ⁵⁷Co, ⁶⁰Co, ⁵¹Cr, ¹³⁷Cs, ¹¹³Sn, ⁵⁴Mn, ⁶⁵Zn, ⁸⁵Sr, ⁸⁸Y – generates around 15 peaks over an energy range from 60 keV to 1836 keV. The quantity of each radionuclide is chosen so that the counting rates of the main peak of each radionuclide are the same order of magnitude.

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