Conversion electron sources
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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