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WEPSC38 |
Determination of Optimal Number of Beam Projections for Scanning Beam Profile Detector Development | |
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Funding: The work is supported by the Ministry of Science and Higher Education of the Russian Federation within agreement 075-15-2021-273, project No. MK-4867.2021.1.2. One of important spatial parameter of particle beams is intensity transverse distribution. Measuring systems for obtaining this parameter should meets following requirements: sufficient spatial resolution; short data collection and processing time; minimum beam destruction during measurement. Most of currently used approaches do not correspond to all of these requirements simultaneously. Authors proposed method based on reconstruction inverse Radon transformation of the data obtained by multiple wire scanning of the beam at different angles with a fixed angle step. This study aims to determine optimal number of beam scans (beam projection). For this aim, test intensity transverse distribution typical for radiation beams was chosen and reconstructed by proposed method. The standard deviation and Euclidean distance were used as criteria for quantitatively assessment of the reconstructed distribution reliability. Based on data obtained, we find an equation for calculation of optimal number of beam projections. With this optimal number, reconstruction results are still reliable, while number of beam scans and, consequently, measurement time are minimal. |
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