Re: Retrospective neutron dosimetry

["Sandy Perle" <sandyfl@EARTHLINK.NET>]

Without going in to specifics, let me just say that to determine 

accuracy, one must be working towards meeting some standard. While 

there were some older Regulatory Guides, none to my knowledge 

actually addressed accuracy and precision. ANSI N13.11-1983 was the 

first standard published whereby dosimetry processors had to submit 

to blind performance testing. The testing only addressed neutron from 

Cf-252 moderated spectra. Even today, there are no performance tests 

required for any processor to report dose from thermal neutrons (ANSI 

N13.11-2001 is the current standard in pilot testing through NVLAP).



To answer your question about a specific dosimeter, you will have to 

obtain any data that can be provided whereby there was ongoing 

confirmatory testing to known spectra based on specific test 

criteria, and, that this be documented. Without quantifiable and 

qualitative data, one can not address your question with any 

validity. For thermal neutron, it's even more difficult, without some 

standard addressing what is to be tested.

-------------------------------------------------

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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