EDE and Form 5 Equivalent Methodology

["Sandy Perle" <sandyfl@earthlink.net>]

I have a question related to how those who use dose weighting to 
derive the EDE (Effective Dose Equivalent), when allowed by their 
appropriate state agency, generate the Form 5 Equivalent, either 
when required for the annual report to the agency and the 
individual, or, if provided when an individual terminates employment. 
Specifically, these are my questions and perspectives:

1. Each individual badge included in the dose weighting calculation 
has its own deep, eye and shallow dose. The EDE is a separate 
line on the report.

2. The EDE is based only on the deep dose (EDE is not calculated 
for the eye and shallow doses since they are not technically 
designated for dose weighting). This is for either a single dosimeter 
or when two dosimeters are worn.

3. The NRC does not currently allow dose weighting, in that they 
consider the weighting factor for whole body as 1. That may 
change based on ANSI N13.41-1997, but for now, NRC licensees 
can not use dose weighting. Therefore, the information I need is 
ONLY for those states that do permit dose weighting, for official 
dose of record.

4. The Form 5 Equivalent, columns 11 (deep), 12 (eye) and 13 
(shallow) are required to be filled-in. IF the facility uses dose 
weighting, do you enter the EDE in column 11 (deep) and make a 
statement in column 19 (comments) that dose weighting was used?

5. Are columns 12 and 13 left blank, or, NA or NC entered since 
there is no EDE for eye or shallow?

6. What do you enter in column 17 for TEDE and 18 for TODE?

The Form 5, as we all have known it, could change drastically as 
more facilities are moving towards reporting EDE as the official 
dose of record. Perhaps there needs to be a new field on the Form 
5 to incorporate this. 

I would appreciate anyone's perspective on this method of dose 
reporting, how you do it, or how the specific state requires this 
information to be documented.

Thanks....

------------------
Sandy Perle
Technical Director
ICN Dosimetry Division
ICN Plaza
3300 Hyland Avenue
Costa Mesa, CA 92626
Office: (800) 548-5100 x2306 
Fax:    (714) 668-3149
  
sandyfl@earthlink.net
sperle@icnpharm.com

ICN Dosimetry Website:
http://www.dosimetry.com

Personal Website:
http://www.geocities.com/CapeCanaveral/1205

"The object of opening the mind, as of opening 
the mouth, is to close it again on something solid"
              - G. K. Chesterton -

The opinions expressed are solely, absolutely, positively, definitely those of the author, and NOT my employer
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