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Conversion Electron Sources
The products shown on these pages are representative sources used for common applications.
If you cannot find the product with your specifications, please contact us using the corresponding email contact on this website. In most cases we will be able provide you with a solution meeting your requirements.
You can also use our product request forms.
Application
These sources are intended for calibrating the energy response of magnetic or solid state electron detectors. The calibrated Bi-207 source can also be used to estimate the detection efficiency. Radionuclides have been chosen that have intense, easily resolvable, electrons from internal conversion.
Construction
A thin deposit of active material is glued between Mylar foils (drawing VZ-486-001), 0.9mg/cm2 thick, or between titanium foils (drawing VZ-392-001) each 2.4mg/cm2 thick. The foils are supported in an aluminium frame 25mm in diameter, 3mm thick. The diameter of the active deposit is approximately 5mm.
Ordering Information
Radionuclide | Nominal activity [kBq] | Window material | Calibrated | Product code |
---|---|---|---|---|
Bi-207 | 37 | Titanium | Uncalibrated | BIRB1082 |
Bi-207 | 37 | Mylar | Uncalibrated | BIRB1083 |
Bi-207 | 37 | Mylar | Calibrated1) | BIRB4391 |
Cs-137 | 37 | Mylar | Uncalibrated | CDRB4630 |
Cs-137 | 370 | Mylar | Uncalibrated | CDRB4944 |
Cs-137 | 370 | Titanium | Uncalibrated | CDRB5552 |
Cd-109 | 370 | Mylar | Uncalibrated | CURB2955 |
1) Calibrated for activity