Characteristics of Gafchromic XRQA2 films for kV image dose measurement

Purpose: In this study, the relevant characteristics of the new Gafchromic XRQA2 film for its application in measuring kV cone beam computed tomography (CBCT) image doses were thoroughly investigated. Methods: The film was calibrated free in air to air kerma levels between 0 and 9 cGy using 120 kVp...

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Veröffentlicht in:	Medical physics (Lancaster) 2012-02, Vol.39 (2), p.842-850
Hauptverfasser:	Giaddui, Tawfik, Cui, Yunfeng, Galvin, James, Chen, Wenzhou, Yu, Yan, Xiao, Ying
Format:	Artikel
Sprache:	eng
Schlagworte:	Calibrating of instruments or apparatus CALIBRATION Computed tomography Computerised tomographs computerised tomography COMPUTERIZED TOMOGRAPHY Cone beam computed tomography Dose-Response Relationship, Radiation DOSEMETERS dosimeters DOSIMETRY Dosimetry/exposure assessment ENERGY DEPENDENCE Equipment Design Equipment Failure Analysis Film Dosimetry - instrumentation Image analysis Image scanners IRRADIATION KERMA kV image dose Medical imaging Medical X‐ray imaging PHOTON BEAMS Radiation Dosage RADIATION DOSES RADIATION PROTECTION AND DOSIMETRY radiochromic films RADIOLOGY AND NUCLEAR MEDICINE Reproducibility of Results Sensitivity and Specificity Spatial resolution Standards and calibration SURFACES Testing or calibrating of apparatus or arrangements provided for in groups G01D1/00 to G01D15/00 Thin film structure Thin films Tomography, X-Ray Computed - instrumentation TRANSMISSION X RADIATION XRQA2 X‐ray imaging X‐ray reflection
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