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Mr. Barnes,
". . . independently of existing architectural structures
except the floor. . ."
The concept being addressed is that the "cabinet"
does not DEPEND on anything EXCEPT the floor to provide part of the shielding or
personnel exclusion. It's irrelevant whether it is attached to the floor,
walls, etc., or can be moved. You can even put it on rollers, or weld it
in place, but if it depends on walls/ceiling/other structures as part of the
shielding, etc., it isn't a cabinet. The idea is that a cabinet requires
less compensating administrative or other controls to prevent inadvertent or
excessive exposure, because the inherent engineering controls inherent are
designed to reduce such a need.
V/R
George R. Cicotte
Health Physicist 3
Nuclear Materials Safety
Ohio Department of Health
DISCLAIMER: Current position having been
noted, the above is my opinion only. Please note that I work in "nuclear
materials safety," not "x-ray" or "radiation generating devices," and I haven't
cleared this with my management. I could be wrong, and occasionally am,
but I don't think so this time. Beware of free advice. Please send
flames to my private email and don't use too many electrons cluttering up
RADSAFE. I already had to set it on digest so I could get some work
done.
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