Pixelated silicon detector for radiation beam profile measurements

A pixelated silicon detector, developed originally for particle physics experiments, was used a beam profile measurement of cobalt-60 (Co-60) irradiator in water phantom. The compared to measured with pinpoint ionization chamber. differences the pixel detector and chamber relative profiles were within approximately 2% maximum, after calculating correction factors Monte Carlo simulations maximum difference decreased 1% maximum. detector’s capability measure pulse-height record an electron spectrum Co-60 beam, results agreed well simulations.