Radiation exposures around a panoramic dental x-ray unit.
To evaluate the radiation hazard in the vicinity of a panoramic x-ray unit, Ektaspeed periapical films were placed in an array behind and to the side of the unit. They were left in place for 7 months, during which 1414 examinations were carried out. The maximum exposure at 80 cm from the patient was determined to be about 1 mGy in 7 months with a heavy workload. This shows clearly that no special environmental shielding barriers are necessary around this unit.
Division of Oral Radiology and Oral Medicine, Faculty of Dentistry, University of Western Ontario, Canada.
J A
JA
Reid
J C
JC
MacDonald
T A
TA
Dekker
B U
BU
Kuppers
D003797:Dental Staff; D004869:Equipment Safety; D006801:Humans; D011834:Radiation Monitoring; D011835:Radiation Protection; D011862:Radiography, Panoramic / Q000295:instrumentation*; D012542:Scattering, Radiation