Spatial resolution studies using point spread function extraction in optically read out Micromegas and GEM detectors
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914880849707008 |
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| author | Cools, A. Ferrer-Ribas, E. Papaevangelou, T. Pollacco, E. C. Lisowska, M. Brunbauer, F. M. Oliveri, E. Iguaz, F. J. |
| author_facet | Cools, A. Ferrer-Ribas, E. Papaevangelou, T. Pollacco, E. C. Lisowska, M. Brunbauer, F. M. Oliveri, E. Iguaz, F. J. |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2407_15491 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spatial resolution studies using point spread function extraction in optically read out Micromegas and GEM detectors Cools, A. Ferrer-Ribas, E. Papaevangelou, T. Pollacco, E. C. Lisowska, M. Brunbauer, F. M. Oliveri, E. Iguaz, F. J. Instrumentation and Detectors 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. |
| title | Spatial resolution studies using point spread function extraction in optically read out Micromegas and GEM detectors |
| topic | Instrumentation and Detectors |
| url | https://arxiv.org/abs/2407.15491 |