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Re: You can't have too much NVLAP.
This was posted on Powernet by Mike Lantz:.
My argument has not changed one iota since I first said it in 1995.
ED's are processed dosimeters. They are processed live time. A
night shift technician can change the parameters that are used to
"process" the count rate into dose rate which is converted to dose.
An access control software can accidentally modify the parameters
that process the dose conversion. They are tiny "microprocessors"
without day to day QC.
When I presented an HPS Summer School topic on the use of ED's for
primary dosimetry ........ to mostly non-nuclear folks...... there
was no bias, no preconceived need for ED use. They had no problem
understanding that the ED's are not as mature as the TLDs for primary
dosimetry and it was a simple discussion. Accredit ED's or don't
utilize them as primary.
The "decision" to find that ED's do not require NVLAP accreditation
for primary dosimetry was premature and mistaken. I had hoped after
eight years that it could be corrected. Thank you Sandy. And Bill,
thank you for all your thoughts too.
Mike Lantz
-------------------------------------------------
Sandy Perle
Director, Technical
ICN Worldwide Dosimetry Service
ICN Plaza, 3300 Hyland Avenue
Costa Mesa, CA 92626
Tel:(714) 545-0100 / (800) 548-5100 Extension 2306
Fax:(714) 668-3149
E-Mail: sandyfl@earthlink.net
E-Mail: sperle@icnpharm.com
Personal Website: http://sandy-travels.com/
ICN Worldwide Dosimetry Website: http://www.dosimetry.com/
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