Re: linear industrial rad

[sandy_perle@email.fpl.com]

     The following information is for 1993, NRC Licensees (Industrial 
     radiography)
     
     no measurable dose .... 1,714
     measurable - .10 rem ..   953
     .10 - .25 rem .........   555
     .25 - .50 rem .........   522
     .50 - .75 rem .........   279
     .75 - 1.00 rem ........   197
     1.00 - 2.0 rem ........   339
     2.0 - 3.0 rem  ........   113
     3.0 - 4.0 rem  ........    38
     4.0 - 5.0 rem  ........     8
     5.0 - 6.0 rem  ........     2
     
     Total Workers monitored- 4,720
     
     There is NO National Dose Registry in the US. The closest thing we 
     have is the NRC's REIRS program, but that only contains dose 
     information for workers who have terminated from a previous work 
     location. In 1995 the NRC requested that nuclear utilities voluntary 
     provide dose information for workers (permanent who have not 
     terminated) to increase their database.
     
     The nuclear power industry is currently in the process of implementing 
     a system called PADS (Personnel Access Data System) which will contain 
     does history information, security information, training and medical 
     information for transient workers to facilitate access to all nuclear 
     utility sites. This is being spearheaded by the Nuclear Energy 
     Institute, with a target of July 1996 for all utilities to be hooked 
     up and operational.
     
     
     Sandy Perle
     Supervisor Health Physics
     Florida Power and Light Company
     Nuclear Division
     
     (407) 694-4219 Office
     (407) 694-3706 Fax
     
     sandy_perle@email.fpl.com


______________________________ Reply Separator _________________________________
Subject: linear industrial rad
Author:  radsafe@romulus.ehs.uiuc.edu at Internet-Mail
Date:    10/19/95 1:25 PM


To: RADSAFE --INTERNET RADSAFE@ROMULUS.EH


Sandy, I see what you mean. Thanks for the clarification. Regarding doses to
industrial radiographers in Canada: In 1993,
 862 workers got 0.0 - 0.19 mSv
232 workers got 0.2 - 0.49 mSv
597 workers got 0.5 - 4.99 mSv
432 workers got 5.0 - 29.9 mSv
25 workers got 30.0 - 49.9 mSv
4 workers got > or = 50.0 mSv

This information is from the National Dose Registry. Therefore includes all
workers who wear a TLD or actually all who possess a TLD whether they wear it
is another issue.  I think few don't wear their TLD unless maybe they are
getting close to 50 mSv in one year and don't want to be ordered to stop
working. This is clearly the most exposed group of all users of radiation
(average yearly).  They also get almost half of ALL the overexposures for a
single wearing period for ALL radiation workers.  There were 2,153 workers,
 1.3 % got more than 3 rem and 0.18% more than 5.
 This little group gets typically almost half of the overexposures in the whole
radiation users community approximately 130,000 workers!!!
 How many industrial radiographers are there in the US?
 Does the US have a national dose registry?
 Are these figures similar to doses received by US industrial radiographers?

Radiation Protection, Ministry of Health, British Columbia
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