Characterization of a 2D ion chamber array for the verification of radiotherapy treatments.

  title={Characterization of a 2D ion chamber array for the verification of radiotherapy treatments.},
  author={Emiliano Spezi and Anna Angelini and Fabrizio Romani and Andrea Ferri},
  journal={Physics in medicine and biology},
  volume={50 14},
In this study we investigated the characteristics of a commercial ion chamber array and its performance in the verification of radiotherapy plans. The device was the 2D Array Seven29 model (PTW, Freiburg, Germany). This is a two-dimensional detector array with 729 ionization chambers uniformly arranged in a 27 x 27 matrix with an active area of 27 x 27 cm(2). The detector short-, medium- and long-term reproducibility have been tested through an extensive set of repeated measurements. Short-term… CONTINUE READING


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