A film dosimetry system for use in computed tomography

Radiology. 1978 Apr;127(1):255-8. doi: 10.1148/127.1.255.


The authors describe a film dosimetry system for use in calculating the surface dose delivered by a CT scanner. Kodak XV-2 film is wrapped around a cylindrical water-filled phantom and the dose distribution is recorded. This system is easier to use than thermoluminescent dosimetry (TLD) and provides a detailed map of the dose distribution. Comparison with TLD measurements for a variety of CT scanners indicates that an accuracy of +/-15% can be achieved using this system. Dose distributions obtained with several scanners are shown.

MeSH terms

  • Humans
  • Radiation Dosage
  • Radiation Monitoring / instrumentation
  • Radiation Monitoring / methods*
  • Thermoluminescent Dosimetry
  • Tomography, X-Ray Computed*