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Re: Dosimeters and airport security - Relative Response of dosimeters
As my former colleague, Bob Hite, Sr., used to say: "A man who has one watch
knows what time it is. A man who has two watches is never sure!"
The opinions expressed are strictly mine.
It's not about dose, it's about trust.
Curies forever.
Bill Lipton
liptonw@dteenergy.com
Sandy Perle wrote:
> Rob is quite accurate in his assessment. Depending on the standard
> followed, country processed in, the Ck (dose conversion factors) are
> all different. In the past, NVLAP used ANSI N13.11-1993 and Handbook
> 150 to assess dose. NVLAP now uses ANSI N13.11-2001. DOELAP used EH-
> 0026 and EH-0027 to assess dose. The dose calculated using the same
> badge in the same area at the same time would result in a different
> dose assessment and official dose record. In the USA we calculate
> DDE, SDE and LDE. In many of the European countries, they calculate
> Hp(d) and Hp(s). They don't calculate lens dose equivalent.
>
> Algorithms are unique to each processor and the method of processing
> is always different. QA/QC programs are different (I conduct NVLAP on-
> site assessments) and have never seen any consistency.
>
> In conclusion, dose is not dose. Double badging and you have a real
> mess on your hands!
> -------------------------------------------------
> 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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