Brief summary for Rad Tech - Cat Scan close Performs duties including the use of ionizing radiation to produce diagnostic information from various exams to allow the physician to identify abnormalities within the human body. Nights 7 days on/7 days off. Shifts are 9:00 p.m. - 7:00 a.m. Wed, Thurs, Fri and 7:00 p.m. - 9:00 a.m. Sat & Sun.