Spatial resolution studies with the BabyIAXO Micromegas prototype

The spatial resolution of the Micromegas prototype developed for the BabyIAXO experiment was evaluated using a low-energy X-ray beam at the SOLEIL synchrotron facility. BabyIAXO, currently under construction, aims to search for hypothetical solar axions. A key component of the experiment is a low-ba...

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Detalles Bibliográficos
Autores: Quintana, A., Castel, J., Cebrián, S., Dafni, T., Díez-Ibáñez, D., Ferrer-Ribas, E., Ezquerro, A., Galán, J., García, J.A., Giganon, A., Goblin, C., Goyal, N., Iguaz, F.J., García Irastorza, I., Loiseau, C., Luzón, G., Margalejo, C., Mirallas, H., Obis, L., Papaevangelou, T., Pérez, O., Porrón, J., Jiménez Puyuelo, M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Zaragoza
Repositorio:Zaguán. Repositorio Digital de la Universidad de Zaragoza
OAI Identifier:oai:zaguan.unizar.es:164210
Acceso en línea:http://zaguan.unizar.es/record/164210
Access Level:acceso abierto
Descripción
Sumario:The spatial resolution of the Micromegas prototype developed for the BabyIAXO experiment was evaluated using a low-energy X-ray beam at the SOLEIL synchrotron facility. BabyIAXO, currently under construction, aims to search for hypothetical solar axions. A key component of the experiment is a low-background X-ray detector with high efficiency in the 1–10 keV energy range and stringent background rejection capabilities. Achieving a spatial resolution on the order of, or better than, 1 mm is critical for accurately reconstructing signal shapes and positions, and for effectively discriminating between signal and background events. Therefore, a precise characterization of the detector’s spatial resolution is essential to validate its suitability for the experiment. This study involved scanning the IAXO-D1 Micromegas detector under various beam energies, positions, and drift field configurations to evaluate their influence on spatial resolution. A resolution of approximately 100 µm at 6 keV was achieved, confirming the strong potential of this technology for application in the final BabyIAXO setup.