[ RadSafe ] Beckman LSC

sebastian at matralab.com sebastian at matralab.com
Sat Jan 23 17:28:59 CST 2010


Perhaps the Cs-137 seed of the counter don't go to the right place,  
and the counter can't calculate the quench. We have a problem like  
this (well, in our case the seed was out of place, specifically it was  
on the circuit board, broken...)

Miguel Angel Sebastian

> Good Morning,
> I am usually a lurker on this list, but am having a consistent problem with a
> Beckman LSC for which I would greatly appreciate any assistance.  We are
> finding that our protocols (typically contamination control protocols, dual
> dpm, 1 minute counts, etc.) are reporting a quench standard error message and
> that many of our results have a negative value assigned to them.  We have
> been continuously working with Beckman to solve this issue, but to no avail.
> I am curious to know if anyone else has encountered this problem before and
> have advice on how to fix it.
> Thank you.
> Sincerely,
> Sarah Stewart
> Radiation Safety Specialist
> Environmental Health & Safety
> Boehringer-Ingelheim Pharmaceuticals, Inc.
> Ridgefield, CT 06877
> (203) 791-6493
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