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Title A ∼100 μm-resolution position-sensitive detector for slow positronium
Author(s) Amsler, C (Stefan Meyer Inst. Subatomare Phys.) ; Antonello, M (INFN, Milan ; Insubria U., Como) ; Belov, A (Moscow, INR) ; Bonomi, G (U. Brescia ; INFN, Pavia) ; Brusa, R S (Trento U. ; TIFPA-INFN, Trento) ; Caccia, M (INFN, Milan ; Insubria U., Como) ; Camper, A (CERN) ; Caravita, R (CERN) ; Castelli, F (INFN, Milan ; Milan U.) ; Cerchiari, G (Heidelberg, Max Planck Inst.) ; Comparat, D (LAC, Orsay) ; Consolati, G (INFN, Milan ; Milan, Polytech.) ; Demetrio, A (Kirchhoff Inst. Phys.) ; Di Noto, L (INFN, Genoa ; Genoa U.) ; Doser, M (CERN) ; Fanì, M (CERN ; Genoa U. ; INFN, Genoa) ; Ferragut, R (INFN, Milan ; Milan Polytechnic) ; Fesel, J (CERN) ; Gerber, S (CERN) ; Giammarchi, M (INFN, Milan) ; Gligorova, A (Stefan Meyer Inst. Subatomare Phys.) ; Guatieri, F (TIFPA-INFN, Trento ; Trento U.) ; Hackstock, P (Stefan Meyer Inst. Subatomare Phys.) ; Haider, S (CERN) ; Hinterberger, A (CERN) ; Kellerbauer, A (Heidelberg, Max Planck Inst.) ; Khalidova, O (CERN) ; Krasnický, D (INFN, Genoa) ; Lagomarsino, V (Genoa U. ; INFN, Genoa) ; Lebrun, P (Lyon, IPN) ; Malbrunot, C (CERN ; Stefan Meyer Inst. Subatomare Phys.) ; Mariazzi, S (TIFPA-INFN, Trento ; Trento U.) ; Matveev, V (Moscow, INR ; Dubna, JINR) ; Müller, S R (Kirchhoff Inst. Phys.) ; Nebbia, G (INFN, Padua) ; Nedelec, P (Lyon, IPN) ; Oberthaler, M (Kirchhoff Inst. Phys.) ; Oswald, E (CERN) ; Pagano, D (U. Brescia ; INFN, Pavia) ; Penasa, L (Trento U. ; TIFPA-INFN, Trento) ; Petracek, V (CTU, Prague) ; Prelz, F (INFN, Milan) ; Prevedelli, M (U. Bologna (main)) ; Rienaecker, B (CERN) ; Robert, J (LAC, Orsay) ; Røhne, O M (Oslo U.) ; Rotondi, A (INFN, Pavia ; Pavia U.) ; Sandaker, H (Oslo U.) ; Santoro, R (INFN, Milan ; Insubria U., Como) ; Testera, G (INFN, Genoa) ; Tietje, I C (CERN) ; Widmann, E (Stefan Meyer Inst. Subatomare Phys.) ; Wolz, T (CERN) ; Yzombard, P (Heidelberg, Max Planck Inst.) ; Zimmer, C (Heidelberg, Max Planck Inst. ; CERN ; Heidelberg U.) ; Zurlo, N (INFN, Pavia ; U. Brescia)
Publication 2019
Number of pages 5
In: Nucl. Instrum. Methods Phys. Res., B 457 (2019) 44-48
DOI 10.1016/j.nimb.2019.07.015
Subject category Detectors and Experimental Techniques
Abstract In this work we describe a high-resolution position-sensitive detector for positronium. The detection scheme is based on the photoionization of positronium in a magnetic field and the imaging of the freed positrons with a Microchannel Plate assembly. A spatial resolution of (88±5)  μm on the position of the ionized positronium –in the plane perpendicular to a 1.0 T magnetic field– is obtained. The possibility to apply the detection scheme for monitoring the emission into vacuum of positronium from positron/positronium converters, imaging positronium excited to a selected state and characterizing its spatial distribution is discussed. Ways to further improve the spatial resolution of the method are presented.
Copyright/License Publication: © 2019-2024 Elsevier B.V.

Corresponding record in: Inspire


 Record creato 2019-09-05, modificato l'ultima volta il 2021-03-01