The dependence of the scattered radiation dose to personnel on technique factors in diagnostic radiology

Br J Radiol. 1992 Jan;65(769):44-9. doi: 10.1259/0007-1285-65-769-44.

Abstract

The measurement and prediction of scattered radiation dose to staff in diagnostic radiology is particularly important, owing to the increased use and complexity of interventional radiology. The air kerma-area product and scattered radiation dose in the vicinity of the patient couch, for both overcouch and undercouch X-ray tube geometries, were simultaneously monitored. The scattered radiation distribution at the couchside was deduced at a range of tube potentials for both overcouch and undercouch X-ray tube geometries. The variation of scattered radiation with field size on both geometries was investigated, as well as the variation with focus-table distance on an overcouch tube geometry. It was discovered that the scattered radiation dose at a point correlated with the air kerma-area product and the result may be used for radiation protection purposes. A method of predicting the scattered radiation dose at a given position is described.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Humans
  • Models, Structural
  • Occupational Exposure*
  • Radiation Dosage*
  • Radiography, Interventional* / instrumentation
  • Scattering, Radiation*
  • Skin / radiation effects
  • X-Rays