title: OSL and TL response characterization of LiF:MG,Ti microdosimeters to be applied to VMAT quality assurance.
abstract: This paper aims to evaluate the feasibility of applying LiF:Mg,Ti microdosimeters as a new method of dosimetry to volumetric-modulated arc therapy (VMAT) RapidArc. The response of microdosimeters presented a maximum variation of ±3.18% and ±0.510% using optically stimulated luminescence (OSL) and thermoluminescence (TL) techniques, respectively. Although studies were conducted on LiF:Mg,Ti microdosimeters previously, the microdosimeters in this study showed precision and high potential of application in VMAT dosimetry and in the verification of treatment planning using the VMAT technique.
authors.affiliation: Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN), Avenida Professor Lineu Prestes, 2242, Cidade Universitária, São Paulo, SP, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Bravim
authors.affiliation: Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN), Avenida Professor Lineu Prestes, 2242, Cidade Universitária, São Paulo, SP, Brazil; Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein (HIAE), Avenida Albert Einstein, 627/701, São Paulo, Brazil.
authors.forename: R K
authors.initials: RK
authors.lastname: Sakuraba
authors.affiliation: Sociedade Beneficente Israelita Brasileira Hospital Albert Einstein (HIAE), Avenida Albert Einstein, 627/701, São Paulo, Brazil.
authors.forename: J C
authors.initials: JC
authors.lastname: Cruz
authors.affiliation: Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN), Avenida Professor Lineu Prestes, 2242, Cidade Universitária, São Paulo, SP, Brazil.
authors.forename: L L
authors.initials: LL
authors.lastname: Campos
mesh_terms: D005459:Fluorides; D006801:Humans; D018020:Lithium Compounds; D049449:Luminescence; D008274:Magnesium; D019047:Phantoms, Imaging; D019904:Polymethyl Methacrylate; D011786:Quality Control; D011874:Radiometry / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data; D011879:Radiotherapy Dosage; D011880:Radiotherapy Planning, Computer-Assisted; D050397:Radiotherapy, Intensity-Modulated / Q000592:standards* / Q000706:statistics & numerical data; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D014025:Titanium
chemical_list: D018020:Lithium Compounds; C027651:lithium fluoride; D019904:Polymethyl Methacrylate; D014025:Titanium; D008274:Magnesium; D005459:Fluorides
keywords: Lithium fluoride; Optically stimulated luminescence; Photons beam; Thermoluminescence; VMAT RapidArc