Measurement of the dose deposition characteristics of x-ray fluoroscopy beams in water

Kenneth A. Fetterly, Bruce J. Gerbi, Parham Alaei, Richard A. Geise

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The purpose of this study was to characterize the x-ray dose distribution of fluoroscopy beams by measuring their percent depth dose curves and lateral dose profiles in a water phantom. Percent depth dose curves were measured near the surface with an Attix parallel plate chamber and deep within the water phantom with a Farmer-type cylindrical chamber. Percent depth dose curves were compared to published data where applicable. Lateral dose profiles were measured at depths of 2, 5, 10, and 15 cm in phantom with a Farmer chamber. Pulsed, 50 mA x-ray beams with peak tube potentials of 60, 80, 100, and 120 kV and half value layers of 1.89, 2.52, 3.20, and 4.09 mm A1, respectively, were investigated.

Original languageEnglish (US)
Pages (from-to)205-209
Number of pages5
JournalMedical Physics
Volume28
Issue number2
DOIs
StatePublished - 2001

Keywords

  • Diagnostic radiology
  • Fluoroscopy dose
  • Lateral dose profile
  • Percent depth dose
  • X-ray dose

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