X-ray spectra and doses

Using the Monte Carlo method the x-ray spectrum produced by 150keV electrons colliding with W, Rh and Mo targets were calculated. The x-ray spectra were calculated to 20, 50, and 100cm from the focal point. In order to analyze the effect of the filter, calculations were carried out with and without...

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Bibliographic Details
Published in:Applied radiation and isotopes 2016-11, Vol.117, p.32-35
Main Authors: Rodriguez-Ibarra, Johanna Lizbeth, Hernandez-Adame, Pablo Luis, Vega-Carrillo, Hector Rene, Rivera, Teodoro
Format: Article
Language:English
Subjects:
Ambient dose equivalent
Kerma
Monte Carlo
Personal dose equivalent
Spectrum
X-ray
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Summary:Using the Monte Carlo method the x-ray spectrum produced by 150keV electrons colliding with W, Rh and Mo targets were calculated. The x-ray spectra were calculated to 20, 50, and 100cm from the focal point. In order to analyze the effect of the filter, calculations were carried out with and without filter. The spectra were used to estimate the Kerma in air, the Ambient dose equivalent, and the Personal dose equivalent. The spectra were integrated in energy to obtain the total photon fluences. Calculated spectra depend on the type of target having the continuous spectrum due to bremsstrahlung and the characteristics x-rays. The Al filter eliminates the low-energy photons; however no effect is noticed when the photon energy is larger than 40keV. The largest effect of dose reduction due to the filter was noticed to 20cm for the Kerma in air. •X-ray spectra were calculated using Monte Carlo method.•Spectra were produced by 150keV electrons interacting with Mo, Rh and W targets.•Calculations were performed with and without Al filter.•With the spectra, the KAir, H*(10) and Hp(10, 0°) were estimated.
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2016.04.001