Considerations for superficial photon dosimetry

Robin L Stern, H. D. Kubo

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


Dose measurements at superficial energies required special considerations. First, care must be taken in selecting appropriate phantom materials. Materials that are adequate tissue substitutes at mega-voltage energies might not be adequate at superficial energies. The suitability of a material can be judged by comparing its mass attenuation and mass energy absorption coefficients at superficial energies to those of the tissue of interest. Second, very low energy x-ray and electron contaminants must be removed from the superficial beam before they reach the detector. For detectors with a very thin window, this can be achieved by placing thin film on top of the detector. Failure to properly eliminate contaminants can result in a large increase in dose measured directly at the surface.

Original languageEnglish (US)
Pages (from-to)1469-1470
Number of pages2
JournalMedical Physics
Issue number9
StatePublished - 1995


  • dosimetry
  • superficial x-ray

ASJC Scopus subject areas

  • Biophysics


Dive into the research topics of 'Considerations for superficial photon dosimetry'. Together they form a unique fingerprint.

Cite this