The primary goal of the AEgIS collaboration at CERN is to measure the gravitational acceleration on neutral antimatter. Positronium (Ps), the bound state of an electron and a positron, is a suitable candidate for a force-sensitive inertial measurement by means of deflectometry/interferometry. In order to conduct such an experiment, the impact position and time of arrival of Ps atoms at the detector must be detected simultaneously. The detection of a low-velocity Ps beam with a spatial resolution of (88 ± 5) μm was previously demonstrated [1]. Based on the methodology employed in [1] and [2], a hybrid imaging/timing detector with increased spatial resolution of about 10 μm was developed. The performance of a prototype was tested with a positron beam. The concept of the detector and first results are presented.
Development of a detector for inertial sensing of positronium at AEá IS (CERN) / L.T. Gloggler, R. Caravita, B. Bergmann, G. Bonomi, R.S. Brusa, P. Burian, A. Camper, F. Castelli, P. Cheinet, D. Comparat, G. Consolati, M. Doser, H. Gjersdal, L. Graczykowski, F. Guatieri, S. Haider, S. Huck, M. Janik, G. Kasprowicz, G. Khatri, G. Kornakov, C. Malbrunot, S. Mariazzi, G. Nebbia, L. Nowak, D. Nowicka, E. Oswald, D. Pagano, L. Penasa, S. Pospisil, L. Povolo, F. Prelz, B. Rienacker, O.M. Rohne, H. Sandaker, I. Stekl, D. Tefelski, I.C. Tietje, M. Volponi, T. Wolz, C. Zimmer, N. Zurlo. - In: JOURNAL OF PHYSICS. CONFERENCE SERIES. - ISSN 1742-6588. - 2374:1(2022), pp. 012037.1-012037.5. (Intervento presentato al convegno International Conference on Technology and Instrumentation in Particle Physics, TIPP tenutosi a Online : 23-28 May nel 2021) [10.1088/1742-6596/2374/1/012037].
Development of a detector for inertial sensing of positronium at AEá IS (CERN)
F. Castelli;F. Prelz;
2022
Abstract
The primary goal of the AEgIS collaboration at CERN is to measure the gravitational acceleration on neutral antimatter. Positronium (Ps), the bound state of an electron and a positron, is a suitable candidate for a force-sensitive inertial measurement by means of deflectometry/interferometry. In order to conduct such an experiment, the impact position and time of arrival of Ps atoms at the detector must be detected simultaneously. The detection of a low-velocity Ps beam with a spatial resolution of (88 ± 5) μm was previously demonstrated [1]. Based on the methodology employed in [1] and [2], a hybrid imaging/timing detector with increased spatial resolution of about 10 μm was developed. The performance of a prototype was tested with a positron beam. The concept of the detector and first results are presented.File | Dimensione | Formato | |
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