Diode arrays and QA of advanced techniques

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Dosimetric verification of delivery for intensity-modulated radiotherapy (IMRT) treatment plans is critical to ensure accurate and safe patient treatments. Commonly, a point dose measurement using a calibrated ion chamber as well as a planar dose measurement using film was traditionally implemented for dosimetric quality assurance (QA) of treatment plans. However, new products have become commercially available in which both an absolute and coarse planar dose measurements can be acquired simultaneously by the use of an array of detectors - either ion chamber- or diode-based. Currently, two devices, MapCHECK and Delta4, utilize diode technology for planar dose measurements with Delta4 implementing an orthogonal biplanar arrangement versus the common singular plane. Both devices have been thoroughly clinically characterized with more published experience in the literature available for the MapCHECK due to the novelty of Delta4. In this review, an overview of basic diode dosimetry and both diode array systems is presented with an emphasis on our research and clinical experience of the Delta4.

Original languageEnglish (US)
Article number012049
Pages (from-to)227-230
Number of pages4
JournalJournal of Physics: Conference Series
StatePublished - 2010

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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