Title :
Air core metallic light guides for scintillation dosimetery in radiotherapy
Author :
Naseri, P. ; Fleming, Simon ; Suchowerska, N. ; McKenzie, D.R.
Author_Institution :
Sch. of Phys., Univ. of Sydney, Sydney, NSW, Australia
Abstract :
Cerenkov radiation introduces an unwanted background in scintillation dosimeters coupled to an optical fibre used for megavoltage radiotherapy, causing inaccuracies. We analyse propagation in air core light guides which do not suffer from this problem.
Keywords :
Cherenkov radiation; dosimeters; dosimetry; optical fibre couplers; radiation therapy; solid scintillation detectors; Cerenkov radiation; air core metallic light guides; optical fibre; radiotherapy; scintillation dosimeters; scintillation dosimetry; Electron tubes; Optical fibers; Reflection; Scattering; Silicon compounds; Silver; Fresnel reflection; dosimtery; scintillation; skew ray; waveguide;
Conference_Titel :
Optical Fibre Technology (ACOFT), 2010 35th Australian Conference on
DOI :
10.1109/ACOFT.2010.5929932
