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X-ray sources |
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Application
These sources have been designed to minimise self-absorption
of low energy photons,so they are suitable for calibrating
X-ray spectrometers such as Si(Li) detectors. For energy calibration
only, a more robust source design is used.
Construction
A thin deposit of active material 5mm in diameter is heat
sealed between plastic foils.
The foils are mounted in an aluminium frame 25mm in diameter,
3mm thick(drawing VZ-1562).
The 20 - 37 kBq sources are sealed between foils 0.1mm and
0.015mm thick, with the thinner foil on the engraved side.The
370 kBq sources are sealed between plastic foils 150 µCi
thick (drawing VZ-2402). |
| Nuclide |
Nominal
activity |
Drawing |
Active
dimensions (mm) |
Overall
dimensions (mm) |
Product
Code |
Remark |
| Am-241 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
AMRB5937 |
calibrated for activity and emission |
| Am-241 |
37.0 kBq |
VZ-2402 |
Ø 5 |
Ø 25
x 3 |
AMRB9484 |
calibrated for activity |
| Ba-133 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
BDRB5938 |
calibrated for activity and emission |
| Ba-133 |
370.0 kBq |
VZ-2402 |
Ø 5 |
Ø 25
x 3 |
BDRB7369 |
calibrated for activity |
| Cd-109 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
CURB5939 |
calibrated for activity and emission |
| Cd-109 |
370.0 kBq |
VZ-2402 |
Ø 5 |
Ø 25
x 3 |
CURB6235 |
calibrated for activity |
| Co-57 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
CTRB4056 |
calibrated for activity and emission |
| Co-57 |
370.0 kBq |
VZ-2402 |
Ø 5 |
Ø 25
x 3 |
CTRB8045 |
calibrated for activity |
| Fe-55 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
IERB5941 |
calibrated for activity and emission |
| Fe-55 |
370.0 kBq |
VZ-2402 |
Ø 5 |
Ø 25
x 3 |
IERB6236 |
calibrated for activity |
| Nb-93m |
20.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
NHRB9483 |
calibrated for activity and emission |
| Pb-210 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
RBRB9482 |
calibrated for activity and emission |
| Zn-65 |
37.0 kBq |
VZ-1562/1 |
Ø 5 |
Ø 25
x 3 |
ZARB5943 |
calibrated for activity and emission |
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