%0 Journal Article
%T Characterization of a novel proton-CT scanner based on Silicon and LaBr3(Ce) detectors
%A Nacher, E.
%A Briz, J. A.
%A Nerio, A. N.
%A Perea, A.
%A Tavora, V. G.
%A Tengblad, O.
%A Ciemala, M.
%A Cieplicka-Orynczak, N.
%A Maj, A.
%A Mazurek, K.
%A Olko, P.
%A Zieblinski, M.
%A Borge, M. J. G.
%J European Physical Journal Plus
%D 2024
%V 139
%N 5
%I Springer Heidelberg
%@ 2190-5444
%G English
%F Nacher_etal2024
%O WOS:001218502700005
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6123), last updated on Thu, 23 May 2024 19:29:01 +0000
%X Treatment planning systems at proton-therapy centres entirely use X-ray computed tomography (CT) as primary imaging technique to infer the proton treatment doses to tumour and healthy tissues. However, proton stopping powers in the body, as derived from X-ray images, suffer from important proton-range uncertainties. In order to reduce this uncertainty in range, one could use proton-CT images instead. The main goal of this work is to test the capabilities of a newly-developed proton-CT scanner, based on the use of a set of tracking detectors and a high energy resolution scintillator for the residual energy of the protons. Different custom-made phantoms were positioned at the field of view of the scanner and were irradiated with protons at the CCB proton-therapy center in Krakow. We measured with the phantoms at different angles and produced sinograms that were used to obtain reconstructed images by Filtered Back-Projection. The obtained images were used to determine the capabilities of our scanner in terms of spatial resolution and proton Relative Stopping Power (RSP) mapping and validate its use as proton-CT scanner. The results show that the scanner can produce medium-high quality images, with spatial resolution better than 2 mm in radiography, below 3 mm in tomography and resolving power in the RSP comparable to other state-of-the-art pCT scanners.
%R 10.1140/epjp/s13360-024-05203-1
%U https://arxiv.org/abs/2307.04273
%U https://doi.org/10.1140/epjp/s13360-024-05203-1
%P 404-9pp