RE: Well logging/Tracer Operations

[Roger Gelder <74167.2472@CompuServe.COM>]

In  the UK where there is a suspected high exposure, it is normal
practice to call for a chromosome abberation test, which should 
be able to determine even quite 'old' excessive exposures.
	 A recent leukaemia after finger loss from industrial 
radiographic source handling was first confirmed by this method, 
followed by electron spin resonance on an amputated (medically 
necessary) finger joint  and, post-mortem, a tooth, confirming 
exposure of 5 to 15 Sv.
	If the dose was sufficient to cause tumour, the effects 
might still be detectable, some years later.
             Roger Gelder