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Review
. 2014 Feb:85:11-3.
doi: 10.1016/j.apradiso.2013.10.022. Epub 2013 Dec 1.

Calibration of the 90Sr+90Y ophthalmic and dermatological applicators with an extrapolation ionization minichamber

Patrícia L Antonio  1 , Mércia L Oliveira  2 , Linda V E Caldas  3
Affiliations
Review

Calibration of the 90Sr+90Y ophthalmic and dermatological applicators with an extrapolation ionization minichamber

Patrícia L Antonio et al. Appl Radiat Isot. 2014 Feb.

Abstract

(90)Sr+(90)Y clinical applicators are used for brachytherapy in Brazilian clinics even though they are not manufactured anymore. Such sources must be calibrated periodically, and one of the calibration methods in use is ionometry with extrapolation ionization chambers. (90)Sr+(90)Y clinical applicators were calibrated using an extrapolation minichamber developed at the Calibration Laboratory at IPEN. The obtained results agree satisfactorily with the data provided in calibration certificates of the sources.

Keywords: (90)Sr+(90)Y clinical applicators; Beta radiation; Extrapolation chamber.

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