Abstract:
:The 1983 AAPM protocol for the determination of absorbed dose from high-energy photon and electron beams recommends using Pion (the reciprocal of collection efficiency), as determined by the two-voltage technique, to correct for recombination losses in ionization chambers. Methods and data for the determination of ionization chamber collection efficiencies are scattered throughout the literature. The present work consolidates the available information, rectifies certain omissions, and provides several convenient and readily implemented methods for determining Pion. Computer programs, quadratic approximations, and data tables are presented to facilitate the determination of Pion for continuous, pulsed, and pulsed-swept beams.
journal_name
Med Physjournal_title
Medical physicsauthors
Weinhous MS,Meli JAdoi
10.1118/1.595574subject
Has Abstractpub_date
1984-11-01 00:00:00pages
846-9issue
6eissn
0094-2405issn
2473-4209journal_volume
11pub_type
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