ERS dose calibrator reference sources
are calibrated by direct comparison
of standardized solutions traceable to
the National Institute of Standards and
Technology (NIST), in an identical geometry,
using a pressurized ion chamber with ±%5
accuracy. Dose Calibrator sources are
manufactured by adding 20 ml activity of
epoxy composition in 30 ml volumed of
polyethelen vial. Each dose calibrator source
has its own colored-coded epoxy.
Cobalt-57, Cobalt-60, Cesium-137, Barium-133
dose calibrator reference sources can be
supplied in set or individually in accordance
with customer request.

 

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