Intercomparison of Gafchromic™ films, TL detectors and TL foils for the measurements of skin dose in interventional radiology

Kopeć, Renata; Novák, Leos; Carinou, Elefteria; Clairand, Isabelle; Dabin, Jeremie; Datz, Hanan; De Angelis, Cinzia; Farah, Jad; Huet, C; Knežević, Željka; Järvinen, Hannu; Majer, Marija; Malchair, Francoise; Negri, Anna; Haruz Waschitz, Sigalit; Siiskonen, Teemu; Szumska, Agnieszka; Trianni, Annalisa; Vanhavere, Filip (2014) Intercomparison of Gafchromic™ films, TL detectors and TL foils for the measurements of skin dose in interventional radiology. Radiation Measurements, 71 . pp. 282-286. ISSN 1350-4487

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Abstract

Several passive solid state dosemeters, such as GafchromicTM films and thermoluminesscence (TL) detectors, are used to estimate and monitor patient skin doses in interventional radiology. To determine the suitability of XR-TypeR GafchromicTM films and of detectors based on TL materials: pellets, chips and foils to measure skin dose, an intercomparison exercise has been organized within European Dosimetry Radiation Group - Working Group 12 “European Medical ALARA Network” (EURADOS WG12). To test response detectors were exposed to X-ray beams of energies and qualities applied clinically. A blind test was also performed to investigate the accuracy of the dose estimate by detectors exposed to unknown doses. We found the response of films to be strongly dependent on beam quality and filtration (increasing by up to 80 % with respect to reference beam quality). The response of TL detectors was found to be less dependent on beam quality (less than 25% variation), with TL foils showing less than 10% variation with respect to reference beam quality. To accurately estimate patient skin doses in interventional radiology it is important to choose the quality of the calibration beam to be as close as possible to the quality of beams actually applied in clinical work.

Item Type:	Article
Additional Information:	This work was performed in the frame of the EURADOS Working Group (WG12). It was partly supported by the Foundation for Polish Science, cofinanced by EU structural funds under Action 1.2 ‘ Strengthening the human resources potential of science ’ of the Innovative Economy Operational Programme 2007 e2013) in the frame of the project POMOST 2010-2/6.
Uncontrolled Keywords:	radiochromic films; Thermoluminescence detectors (TLD); TL foils; skin doses in interventional radiology
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division of Materials Chemistry
Depositing User:	Željka Knežević Medija
Date Deposited:	21 Dec 2016 11:27
URI:	http://fulir.irb.hr/id/eprint/1828
DOI:	10.1016/j.radmeas.2014.04.008

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