[ RadSafe ] Whole-body counting and actinides

[JGinniver at aol.com]

Khalid,
I'm a little confused by your post.  RWE Nukem in the UK, based at the  
Harwell International Business Centre are an 'approved' company for internal  
dosimetry.  They provide Internal dosimetry to a number of clients, but  
predominantly the United Kingdom Atomic Energy Authority.  They mainly  assess doses 
received from intakes of Uranium or Plutonium although have done  some work on 
Thorium as well.  I'm confused as generally the preferred dose  assessment 
technique is Urine analysis for Uranium and Faecal analysis for  plutonium.  They 
have the ability to undertake Plutonium in Lung  measurements but the threshold 
for this is about 1 Annual Limit on Intake (50  mSv).  They are also required 
to provide wound monitoring for injuries  involving alpha emitting 
radionuclides, but I'm not aware of direct measurements  being made on 'hot spots'.  It 
might help if you can clarify what  radionuclides are involved and why hot 
spots might be an issue.
 
Regards,
    Julian