ESB γ sources in paper matrix
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.
Production Range
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
From 0.6 to 6.3 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
From 0.8 to 6.7 in
20000 Bq • 0.5 μCi
40000 Bq • 1.1 μCi
From 0.03 to 27 μCi
Y-88, Cd-109, Sn-113, Cs-134, Cs-134, Ce-139, Am-241 (Non-exhaustive list)
Reference/Product No.
20000 Bq • 0.5 μCi
40000 Bq • 1.1 μCi
≤ 10%
≤ 10%
12ML01 ESB [Type] [20KBQ]
12ML01 ESB [Type] [40KBQ]
Standard manufacturing tolerance: ± 30% | IAEA Category: 5 • ISO2919 | Classification: C11111
*Scope N°2-6386 available at www.cofrac.fr or upon request.
** The 12ML01 mixture – Am-241, Cd-109, Ce-139, Co-57, Co-60, Cr-51, Cs-137, Sn-113, Mn-54, Zn-65, Sr-85, Y-88 – 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. See below for additional information on the 12ML01 mixture and on the other mixes available. Other geometries are available on request.
How to compose reference/product no.:
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]
12ML01 Mixture
Composition of the mixture
12ML01 60 keV – 1 836 keV
137 keV
1,333 keV
1,836 keV
Emission Spectrum
Any other mix of Am-241, Ba-133, Co-60, Cs-137 and Eu-152 can be produced on request for specific activities.
Contact Radnostix
Use the link below to contact us or call 1.208.524.5300