RE: BWR: HOTWELL/CONDENSER DRY LAYUP

["Albert W. Wolff Jr." <wolff.albert@mcleod.net>]

My experience has been to expect low levels (1,000-10,000 dpm/100cm2)
inside the condenser except for the area in the vicinity of the RWCU
dump line to the condenser and the hotwell itself (up to mRad/hr/100cm2
range). The hotwell is typically damp so airborne not generally a
problem unless doing large scale high energy work such as grinding or
flapping. However the area is close quarters for work which increases
the possibility of skin contaminations and ingestions. If some fuel
failure has occured then of course except much higher contamination
levels.

I've have not heard of any coating to put on the inside of the condenser
to minimize corrosion/erosion. Seems like any coating put on could
possibly effect chemistry or become an FME concern if it would become
detached.

Al Wolff

awolff@ies-energy.com
Duane Arnold Energy Center