Worse case vs. normal operations

["Susan McElrath" <smcelrath@atl.mediaone.net>]

This question concerns an industrial x-ray installation in the state of
California.  When demonstrating compliance with requirements for doses to
non-radiation workers, must you show worse-case conditions (an individual
plants themselves next to the unit 24-hours a day and the unit operates
24-hours a day), or may you use normal conditions, e.g., an individual is in
the area several feet away from the unit for 8-10 hours per day and the unit
operates 6 hours a day? 

Susan McElrath
smcelrath@atl.mediaone.net <mailto:smcelrath@mindspring.com>