Author/Authors :
La Rosa، نويسنده , , A. and Garella، نويسنده , , M.A. and Bourhaleb، نويسنده , , F. and Cirio، نويسنده , , R. and Donetti، نويسنده , , M. and Giordanengo، نويسنده , , S. and Givehchi، نويسنده , , N. and Marchetto، نويسنده , , F. and Martin، نويسنده , , F. and Meyroneinc، نويسنده , , S. and Peroni، نويسنده , , C. and Pittà، نويسنده , , G.، نويسنده ,
Abstract :
The Dipartimento di Fisica Sperimentale and the Istituto Nazionale di Fisica Nucleare (INFN), Torino, in collaboration with the Institut Curie—Centre de Protontherapie de Orsay (CPO), have developed and built a pixel parallel plate ionization chamber to be used as monitor for the proton therapy beam line at the Institut Curie—CPO (Orsay, France).
nsitive area of the detector is (160×160) mm2, with the anode segmented in 1024 square pixels arranged in a 32×32 matrix; the area of each pixel is (5×5) mm2. The detector has been placed on the beam line just upstream of the last collimator to monitor the beam shape and to measure the stability and reproducibility of the delivery system. In this paper, we present a detailed description of the detector and the results of a set of preliminary tests.
Keywords :
Hadrontherapy , ionization chamber , Beam position monitor , dosimeter
