Abstract
In order to measure the three-dimensional dose distribution in X-ray radiotherapy, we developed a plate-type thermoluminescence dosimeter (TLD) using the TL phosphor Li3B7O12:Cu, which has Z eff = 7.42 and a density of 1.01 gcm−3. This detector was expected on useful application in advanced X-ray radiotherapies such as intensity-modulated ratiation therapy (IMRT) etc., because it can obtain 3D dose measurements simply and quickly with a single exposure. In this paper, we report the response of this plate-type TLD to a therapeutic carbon beam at the Heavy Ion Medical Accelerator in Chiba (HIMAC). Using a plate heater and charge coupled device (CCD) camera, we captured thermoluminescence images of plate-type TLDs irradiated by a therapeutic carbon beam. The TL intensity was measured at each water equivalent depth and compared with output of the ionization chamber. The relative TL efficiency of this TLD as 60Co gamma-ray equivalent decreased gradually with increasing dose-averaged linear-energy-transfer (LET), reaching about 20% at the Bragg peak of 290 MeV/u carbon ions.
Similar content being viewed by others
References
K. Shinsho, Y. Tomizawa, H. Horikawa, S. Miyajima and H. Saitoh, Radiat. Meas. 46, 1912 (2011).
U. Akio, S. Kiyomitsu and T. Yuji, TCP/JP2009/070094 (Patent Cooperation Treaty).
H. Gustavsson, S. Bäck, S. Medin, E. Grusell and L. Olsson, Phys. Med. Biol. 49, 3847 (2004).
Y. S. Horowitz, D. Satinger, E. Fuks, L. Oster and L. Podpalov, Radiat. Prot. Dosim. 106-1, 7 (2003).
H. Yasuda and K. Fujitaka, Radiat. Prot. Dosim. 94-3, 275 (2001).
T. Berger and M. Hajek, Radiat. Meas. 43, 146 (2008).
M. Torikoshi, S. Minohara, N. Kanematsu, M. Komori, M. Kanazawa, K. Noda, N. Miyahara, H. Itoh, M. Endo and T. Knai, J. Radiat. Res. 48,Suppl. A, A15 (2007).
P. Bilski, Radiat. Meas. 45, 42 (2010).
H. Yasuda and K. Fujitaka, Radiat. Prot. Dosim. 87-3, 203 (2000).
M. Puchalska and P. Bilski, Radiat. Meas. 43, 679 (2008).
A. Triolo, M. Brai, A. Bartolotta and M. Marrale, Nucl. Instr. Meth. A 560, 413 (2006).
G. Massillon-JL, I. Gamboa-deBuen and M. E. Brandan, Nucl. Instr. Meth. B 266, 772 (2008).
M. Hajek, T. Berger, R. Bergmann, N. Vana, U. Uchihori, N. Yasuda and H. Kitamura, Radiat Meas. 43, 1135 (2008).
Y. S. Horowitz, A. Horowitz, L. Oster, S. Marino, H. Datz and M. Margliot, Radiat Prot. Dosim. 131-4, 406 (2008).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Koba, Y., Fukuda, S., Shinsho, K. et al. Response of a plate-type thermoluminescence dosimeter to a therapeutic carbon beam. Journal of the Korean Physical Society 63, 1432–1436 (2013). https://doi.org/10.3938/jkps.63.1432
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.63.1432