Fla. Admin. Code Ann. R. 64E-5.1407 - Shielding
(1) The radiation
dose rate in areas which normally are occupied during operation of a panoramic
irradiator must not exceed 2 millirem (0.02 millisievert) per hour at 30
centimeters or more from the wall of the room when the sources are exposed. The
dose rate must be averaged over an area not to exceed 100 square centimeters
having no linear dimension greater than 20 centimeters. Areas where the
radiation dose rates exceed 2 millirem (0.02 millisievert) per hour must be
locked, roped off, or posted to prevent access and not entered without written
approval or in the physical presence of the radiation safety officer or his
designee.
(2) The radiation dose at
30 centimeters over the pool of a pool irradiator when the source is in the
fully shielded position must not exceed 2 millirem (0.02 millisievert) per
hour.
(3) The radiation dose rate
at 1 meter from the shield of a dry-source-storage panoramic irradiator must
not exceed 2 millirem (0.02 millisievert) per hour and at 5 centimeters from
the shield must not exceed 20 millirem (0.02 millisievert) per hour.
Notes
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