Two-dimensional thermoluminescence dosimetry using planar detectors and a TL reader with CCD camera readout

A novel method of determining two-dimensional (2-D) dose distributions is presented, using in-house developed, large-area (a few cm2) thermoluminescent (TL) detectors based on LiF powder plated on Al foil. An in-house developed planar large-area TL reader equipped with a coupled charge device (CCD)...

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Bibliographic Details
Published in:Radiation protection dosimetry 2006-09, Vol.120 (1-4), p.129-132
Main Authors: Marczewska, B., Bilski, P., Czopyk, L., Olko, P., Waligórski, M.P.R., Zapotoczny, S.
Format: Article
Language:English
Subjects:
Dose-Response Relationship, Radiation
Equipment Design
Equipment Failure Analysis
Radiation Dosage
Reproducibility of Results
Semiconductors
Sensitivity and Specificity
Signal Processing, Computer-Assisted - instrumentation
Thermoluminescent Dosimetry - instrumentation
Thermoluminescent Dosimetry - methods
Transducers
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Summary:A novel method of determining two-dimensional (2-D) dose distributions is presented, using in-house developed, large-area (a few cm2) thermoluminescent (TL) detectors based on LiF powder plated on Al foil. An in-house developed planar large-area TL reader equipped with a coupled charge device (CCD) camera is used for readout, providing digital images of 2-D dose distributions on the surface of these large-area TL detectors. The capability of the newly developed system is demonstrated by mapping 2-D dose distributions around a brachytherapy source, at dose ranges and source geometries relevant for clinical radiotherapy. Examples of local and dynamic evaluation of TL output from conventional TL detectors are also shown.
ISSN:0144-8420
1742-3406
DOI:10.1093/rpd/nci593