[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: To Luxel Users
Mike Lantz stated:
> If these reported measurements are not facility-related work but
> are simply due to area variations, what good is a minimum reportable dose of 1
> mrem?
One might also ask, if the regulatory limits are 1250 mrem/qtr, or,
5000 mrem/yr (TEDE), why measure dose at 1 mrem at all, even if
this can be attributed to occupational exposure? In my opinion,
reporting and recording dose down to 1 mrem "gives significance to
the insignificant."
Another question: If the net dose reported is 1 mrem, how is the
Control Badge dose measured where a net dose of 1 mrem can be
reported? What is the statistical significance of the Control Badge
response and how is this response converted to dose? What is the
Process Capability whereby the variance of the process is defined
to the point that a dose is either determined to be real, or, false?
To be statistically valid, in my opinion, any measuring system has
to have enough data to be analyzed, so how does one do that if the
minimal dose is 1 mrem? Does the system actually determine
dose at 0.1 mrem, and therefore, there is a rounding off factor?
Anyone have insight, or asked that question when obtaining your
dose reports? NVLAP only tests dose down to 30 mrem. Going
from 30 to 1 mrem is a big jump. What's the basis?
----------------------------------------------------------------------------------------
Sandy Perle Tel:(714) 545-0100 / (800) 548-5100
Director, Technical Extension 2306
ICN Worldwide Dosimetry Division Fax:(714) 668-3149
ICN Biomedicals, Inc. E-Mail: sandyfl@earthlink.net
ICN Plaza, 3300 Hyland Avenue E-Mail: sperle@icnpharm.com
Costa Mesa, CA 92626
Personal Website: http://www.geocities.com/capecanaveral/1205
ICN Worldwide Dosimetry Website: http://www.dosimetry.com
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html