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Updated: May 26, 2026
Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
Published on: May 9, 2014
Characterization of a homemade ionization chamber for radiotherapy beams
Lucio P Neves1, Ana P Perini, Gelson P dos Santos
1Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN/SP), Comissão Nacional de Energia Nuclear, Av. Prof. Lineu Prestes 2242, 05508-000 São Paulo, Brazil. lpneves@ipen.br
Abstract:
A homemade cylindrical ionization chamber was studied for routine use in therapy beams of (60)Co and X-rays. Several characterization tests were performed: leakage current, saturation, ion collection efficiency, polarity effect, stability, stabilization time, chamber orientation and energy dependence. All results obtained were within international recommendations. Therefore the homemade ionization chamber presents usefulness for routine dosimetric procedures in radiotherapy beams.
