title: X-ray spectra and quality parameters from Monte Carlo simulation and analytical filters.
abstract: BEAMnrc was used to derive the X-ray spectra, from which HVL and homogeneity coefficient were determined, for different kVp and filtration settings. Except for the peak at 61 keV, the spectra are in good agreement with the IPEM report 78 data for the case of filtered beams, whereas the unfiltered beams exhibit softer spectra. Although the current attenuation data deviates from the IPEM 78 data by ~±0.5%, this has negligible effects on the calculated HVL values.
authors.affiliation: Department of Nuclear Medicine, Radiotherapy and Oncology, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia.
authors.forename: Z
authors.initials: Z
authors.lastname: Salehi
authors.forename: N K
authors.initials: NK
authors.lastname: Ya Ali
authors.forename: A L
authors.initials: AL
authors.lastname: Yusoff
mesh_terms: D003198:Computer Simulation; D005374:Filtration; D006801:Humans; D009010:Monte Carlo Method; D011829:Radiation Dosage; D011835:Radiation Protection / Q000379:methods; D035501:Uncertainty; D014965:X-Rays / Q000009:adverse effects*