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Khan, Y., Villarreal-Barajas, J.E., Udowicz, M., Sinha, R., Muhammad, W., Abbasi, A.N. and Hussain, A. (2013) Clinical and Dosimetric Implications of Air Gaps between Bolus and Skin Surface during Radiation Therapy. Journal of Cancer Therapy, 4, 1251-1255.
http://dx.doi.org/10.4236/jct.2013.47147
has been cited by the following article:
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TITLE:
Comparative Study on the Surface Dose of Some Bolus Materials
AUTHORS:
Iosif Malaescu, Catalin Nicolae Marin, Marius Spunei
KEYWORDS:
Bolus Materials, Surface Dose, Build-Up Region, Moldable Silicon Rubber, Electron Beams
JOURNAL NAME:
International Journal of Medical Physics, Clinical Engineering and Radiation Oncology,
Vol.4 No.4,
November
11,
2015
ABSTRACT: In order to investigate the possibility of using different materials as bolus in radiotherapy, five samples denoted by S2 - S6 were prepared and analyzed by comparison with one available commercial bolus denoted by S1. Sample S1 was a thermoplastic material from Qfix; S2 was a moldable silicon rubber (RTV-530 from Prochima); S3 and S4 were obtained by adding micrometric particles of Al and Cu respectively (at the same mass concentration of 5.5%); S5 was another moldable silicon rubber (GSP400 from Prochima) and S6 was a mixture of GSP400 and micrometric particles of Cu (at the mass concentration of 5.5%). The measurements of normalized transmitted dose as a function of sample thickness were performed for all samples (S1 - S6) at two values of electron beam energy (6 and 9 MeV) produced by a linear accelerator VARIAN 2100SC. The results showed that the maximum of the normalized transmitted dose of manufactured samples (S2 - S6) is registered at smaller sample thicknesses than for the analyzed commercial bolus (sample S1). The smallest sample thickness corresponding to normalized maximum point dose is obtained for sample S2 (RTV-530). Measurements performed for electron beam energy of 6 and 9 MeV have proven the possibility of using the manufactured samples as bolus in radiotherapy.