TY  - JOUR
AU  - Nacher, E.
AU  - Briz, J. A.
AU  - Nerio, A. N.
AU  - Perea, A.
AU  - Tavora, V. G.
AU  - Tengblad, O.
AU  - Ciemala, M.
AU  - Cieplicka-Orynczak, N.
AU  - Maj, A.
AU  - Mazurek, K.
AU  - Olko, P.
AU  - Zieblinski, M.
AU  - Borge, M. J. G.
PY  - 2024
DA  - 2024//
TI  - Characterization of a novel proton-CT scanner based on Silicon and LaBr3(Ce) detectors
T2  - Eur. Phys. J. Plus
JO  - European Physical Journal Plus
SP  - 404
EP  - 9pp
VL  - 139
IS  - 5
PB  - Springer Heidelberg
AB  - 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.
SN  - 2190-5444
UR  - https://arxiv.org/abs/2307.04273
UR  - https://doi.org/10.1140/epjp/s13360-024-05203-1
DO  - 10.1140/epjp/s13360-024-05203-1
LA  - English
N1  - WOS:001218502700005
ID  - Nacher_etal2024
ER  -