Re: T and the Nav

["Merritt, Kim D 7714 M" <KDMERRI@sandia.gov>]

As an ex-Navy ELT I agree with what Bruce put in.  As I recall, the only 
reference made to Tritium was in regards to water chemistry and the control 
of reprocessed reactor coolant, which was not applicable to sea going 
reactors.  As far as neutron dose, I never received any, although I was 
involved with handling neutron sources on occasion.  Although we did were 
neutron dosimetry, we did not process it ourselves so I am not aware of 
their sensitivity and LLD.
Kim Merritt
kdmerri@sandia.gov
Sandia National Labs

Needless to say, my opinions are of little value to anyone but myself.
 ----------
From: Bruce Busby
To: radsafe@romulus.ehs.uiuc.edu
Subject: Re: Slit Lamp Eye Exams
Date: Tuesday, May 21, 1996 7:39AM

Hi All,

I spent 8 years as an Navy Nuc ELT. For those who dont have a feel for
that, an ELT does the operational HP work, the dosimetry, the tech work
and the water and radio-chemistry in support of the Navy Nuc Propulsion
program. Also, we often got thrown the IH work and hazardous waste jobs.

About the eye exams, I would say that we were not exposed to much neutron,
not sure how much more I can say due to the fact it might contain
classified data though. But as far as my dose goes, I would estimate than
less than 5% of my lifetime dose would have been from neutron, most from
repair work and overhaul at prototype (CRUD) and N-16 during ops.

Tritium. I do not speak for the Nav, but in my opinion, they made several
simplifying assumptions, and one being that basically tritium was
not a major radiological problem at the levels found in the primary
coolant, and safety measures for other, easier to find isotopes took care
of the hazards of tritium where ever it was found. Based on dealing with
coolant during analysis on a daily basis and spills frequently during
overhaul, I agree. Without going into detail, the isotope make up of the
coolent was determined and monitored on a set schedule.

A goal of health physics is to provide a safe work environment for the
work personnel and protect the general public. The Nuc Navy does that
probably to the extreme, having their assumptions balance with
conservative (restrictive) levels, constant training and verbatim
compliance, yet still deal with personnel attrition, work and
environmental conditions, battle readiness and Navy moral and hierarcy.


 -Bruce Busby
 bbusby@umich.edu

BIG DISCLAIMER: I am not in the Navy *any more*  and these are only my
opinions.


On Tue, 21 May 1996, Dwayne Gardner wrote:

> Speaking of the Navy Nuclear Program... why are there never any surveys
> performed for tritium?
>
> At 03:19 PM 5/20/96 -0500, you wrote:
> >The Navy Nuclear Power Program used to give slit lamp exams; I recall
> >getting one in 1983.  It was an initial screening, no periodic or
> >termination exams were done.  I do not belive it is part of the regular
> >radiation physical as described in NAVMED P-5055 for non nuclear power
> >radiation workers.  Perhaps some current Navy radsafers have more
> >deatils.