Fricke xylenol glycine gel dosimeter for in vivo dosimetry at extended treatment distance

S Ebenezer Suman Babu; K Mohamathu Rafic; B S Timothy Peace; L Jose Solomon Raj; B Paul Ravindran

doi:10.1016/j.apradiso.2018.09.028

Fricke xylenol glycine gel dosimeter for in vivo dosimetry at extended treatment distance

Appl Radiat Isot. 2019 Mar:145:217-222. doi: 10.1016/j.apradiso.2018.09.028. Epub 2018 Sep 27.

Authors

S Ebenezer Suman Babu¹, K Mohamathu Rafic², B S Timothy Peace², L Jose Solomon Raj², B Paul Ravindran²

Affiliations

¹ Department of Radiotherapy, Christian Medical College, Vellore 632004, Tamil Nadu, India. Electronic address: emailstoebi@gmail.com.
² Department of Radiotherapy, Christian Medical College, Vellore 632004, Tamil Nadu, India.

PMID: 30798250
DOI: 10.1016/j.apradiso.2018.09.028

Abstract

Fricke xylenol gelatin with glycine (FXG_Gly) as gel dosimeter was investigated for in vivo dosimetry at extended source-to-surface distance (eSSD) and validated with optically stimulated luminescence dosimeters (OSLD). FXG_Gly dosimeter was calibrated with a low dose rate of 10 cGy/min at eSSD and evaluated using anthropomorphic phantom simulating the actual treatment scenario. The FXG_Gly dosimeter was demonstrated as a suitable in vivo dosimeter for total body irradiation at eSSD with desirable dosimetric accuracy (± 2%) in comparison with OSLD or ionization chamber.