Microdosimetric comparison of scanned and conventional proton beams used in radiation therapy

John F. Dicello, Bradford B. Gersey, Daila S. Gridley, George B. Coutrakon, David Lesyna, Vincent L. Pisacane, James B. Robertson, Reinhard W. Schulte, Jerry D. Slater, Andrew J. Wroe, James M. Slater

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Multiple groups have hypothesised that the use of scanning beams in proton therapy will reduce the neutron component of secondary radiation in comparison with conventional methods with a corresponding reduction in risks of radiation-induced cancers. Loma Linda University Medical Center (LLUMC) has had FDA marketing clearance for scanning beams since 1988 and an experimental scanning beam has been available at the LLUMC proton facility since 2001. The facility has a dedicated research room with a scanning beam and fast switching that allows its use during patient treatments. Dosimetric measurements and microdosimetric distributions for a scanned beam are presented and compared with beams produced with the conventional methods presently used in proton therapy. Published by Oxford University Press on behalf of the US Government 2011.

Original languageEnglish (US)
Article numberncq513
Pages (from-to)513-518
Number of pages6
JournalRadiation Protection Dosimetry
Issue number2-4
StatePublished - Feb 2011
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health


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