[ RadSafe ] Ni-63

[Refael Srebro]

Hi


I check ECD and sniffers  for contamination : smear test in liquid scintillation,
And in many of the  samples I find contamination above background . Most of the time it is less than 185 Bq
But in Israel when the sample is not taken directly from the source, contamination is defined , above 0.37 Bq.
It is Ni-63 (not noise or chemo luminesce)  .
The source is a sealed source so why after the instruments is used  I find contamination in the outlet or on the detector case ?

Thanks



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Rafi Srebro
Radiation Safety Officer
srebro at bgu.ac.il<mailto:srebro at bgu.ac.il>
Tel: +972-8-6461314 | Cell: +972-52-8795999