Under Water Barrier Lights

[RON LAVERA <lavera.r@nypa.gov>]

In light of all of the instances of underwater divers in Spent Fuel Pools or
Reactor Cavities, inadvertently moving out of the surveyed areas into
areas that have very steep dose rate gradients, I thought of using a
string of colored ( magenta or red ) underwater lights, or even a lighted
bare fiber optic cable,  as "barriers" for demarcating the limits of travel
for the divers.  Does anyone have experience with this type of
application in Borated Spent Fuel Pools ?

Please respond to :  LAVERA.R@NYPA.GOV

Thank you in advance for your time and consideration.

Ron LaVera