Pixelated silicon detector for radiation beam profile measurements

Joonas Tikkanen; Stefanie Kirschenmann; Nikita Kramarenko; Erik Brücken; Pirkitta Koponen; Panja Luukka; Teemu Siiskonen; Raimo Turpeinen; Jennifer Ott

arXiv · 2212.04773

Pixelated silicon detector for radiation beam profile measurements

Joonas Tikkanen·Stefanie Kirschenmann·Nikita Kramarenko·Erik Brücken·Pirkitta Koponen·Panja Luukka·Teemu Siiskonen·Raimo Turpeinen·Jennifer Ott

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Abstract

A pixelated silicon detector, developed originally for particle physics experiments, was used for a beam profile measurement of a Co-60 irradiator in a water phantom. The beam profile was compared to a profile measured with a pinpoint ionization chamber. The differences in the pixel detector and pinpoint chamber relative profiles were within approximately 0.02, and after calculating correction factors with Monte Carlo simulations for the pixel detector, the differences were decreased to almost less than 0.005. The detector's capability to measure pulse-height was used to record an electron pulse-height spectrum in water in the Co-60 beam, and the results agreed well with simulations.

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Joonas Tikkanen, Stefanie Kirschenmann, Nikita Kramarenko, Erik Brücken, Pirkitta Koponen, Panja Luukka, Teemu Siiskonen, Raimo Turpeinen, Jennifer Ott. 2022-12-09. Pixelated silicon detector for radiation beam profile measurements. https://arxiv.org/abs/2212.04773

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