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 cm(2)) 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.
Marczewska
B
B
Institute of Nuclear Physics (INP), ul. Radzikowskiego 152, PL-31-342 Kraków, Poland. Barbara.Marczewska@ifj.edu.pl
Bilski
P
P
Czopyk
L
L
Olko
P
P
Waligórski
M P R
MP
Zapotoczny
S
S
D004307:Dose-Response Relationship, Radiation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D011829:Radiation Dosage; D015203:Reproducibility of Results; D012666:Semiconductors; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation* / Q000379:methods; D014159:Transducers