On the calculation of mean restricted collision stopping powers

Wolfgang A. Tomé, Jatinder R. Palta

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

An analytical method for the calculation of ratios of mean restricted collision stopping powers (L/p)(g)m averaged over the charged particle spectra and the photon spectrum that is accurate to first order has been developed, and it has been explored whether a moderate change in the photon fluence spectrum with field size has an effect on the mean restricted collision stopping power ratio in high-Z materials. The results of this study indicate that for the case of a miniphantom, moderate changes in the photon fluence spectrum have only a weak effect on the ratios of mean restricted collision stopping powers.

Original languageEnglish (US)
Pages (from-to)758-772
Number of pages15
JournalMedical Physics
Volume25
Issue number5
DOIs
Publication statusPublished - May 1998
Externally publishedYes

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Keywords

  • Calibration
  • Charged particle spectra
  • Collision stopping power
  • Dosimetry
  • Photon spectrum

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging

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