| Article | |
| Report number | arXiv:2407.15491 |
| Title | Spatial resolution studies using point spread function extraction in optically read out Micromegas and GEM detectors |
| Author(s) | Cools, A. (IRFU, Saclay) ; Ferrer-Ribas, E. (IRFU, Saclay) ; Papaevangelou, T. (IRFU, Saclay) ; Pollacco, E.C. (IRFU, Saclay) ; Lisowska, M. (CERN) ; Brunbauer, F.M. (CERN) ; Oliveri, E. (CERN) ; Iguaz, F.J. (SOLEIL, Saint-Aubin) |
| Publication | 2024-10-07 |
| Imprint | 2024-07-22 |
| Number of pages | 22 |
| Note | 22 pages, 17 figures |
| In: | Nucl. Instrum. Methods Phys. Res., A 1069 (2024) 169933 |
| DOI | 10.1016/j.nima.2024.169933 (publication) |
| Subject category | physics.ins-det ; Detectors and Experimental Techniques |
| Abstract | Optically read out gaseous detectors are used in track reconstruction and imaging applications requiring high granularity images. Among resolution-determining factors, the amplification stage plays a crucial role and optimisations of detector geometry are pursued to maximise spatial resolution. To compare MicroPattern Gaseous Detector (MPGD) technologies, focused low-energy X-ray beams at the SOLEIL synchrotron facility were used to record and extract point spread function widths with Micromegas and GEM detectors. Point spread function width of $\approx$108 \microns for Micromegas and $\approx$127 \microns for GEM foils were extracted. The scanning of the beam with different intensities, energies and across the detector active region can be used to quantify resolution-limiting factors and improve imaging detectors using MPGD amplification stages. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2024 Published by Elsevier B.V. |
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Record creato 2024-08-06, modificato l'ultima volta il 2024-11-12
