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Megavoltage X-Ray Imaging Based on Cerenkov Effect : A New Application of Optical Fibres to Radiation Therapy
Joint Authors
Source
International Journal of Optics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-12-29
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
A Monte Carlo simulation was used to study imaging and dosimetric characteristics of a novel design of megavoltage (MV) X-ray detectors for radiotherapy applications.
The new design uses Cerenkov effect to convert X-ray energy absorbed in optical fibres into light for MV X-ray imaging.
The proposed detector consists of a matrix of optical fibres aligned with the incident X rays and coupled to an active matrix flat-panel imager (AMFPI) for image readout.
Properties, such as modulation transfer function, detection quantum efficiency (DQE), and energy response of the detector, were investigated.
It has been shown that the proposed detector can have a zero-frequency DQE more than an order of magnitude higher than that of current electronic portal imaging device (EPID) systems and yet a spatial resolution comparable to that of video-based EPIDs.
The proposed detector is also less sensitive to scattered X rays from patients than current EPIDs.
American Psychological Association (APA)
Teymurazyan, A.& Pang, G.. 2011. Megavoltage X-Ray Imaging Based on Cerenkov Effect : A New Application of Optical Fibres to Radiation Therapy. International Journal of Optics،Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-493503
Modern Language Association (MLA)
Teymurazyan, A.& Pang, G.. Megavoltage X-Ray Imaging Based on Cerenkov Effect : A New Application of Optical Fibres to Radiation Therapy. International Journal of Optics No. 2012 (2012), pp.1-13.
https://search.emarefa.net/detail/BIM-493503
American Medical Association (AMA)
Teymurazyan, A.& Pang, G.. Megavoltage X-Ray Imaging Based on Cerenkov Effect : A New Application of Optical Fibres to Radiation Therapy. International Journal of Optics. 2011. Vol. 2012, no. 2012, pp.1-13.
https://search.emarefa.net/detail/BIM-493503
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-493503