/ Instrumentation

Development of nuclear emulsions operating in vacuum for the AEgIS experiment

Scampoli, P. (Naples U.) ; Aghion, S. (INFN, Milan) ; Ahlen, O. (CERN) ; Amsler, C. (Bern U., LHEP) ; Ariga, A. (Bern U., LHEP) ; Ariga, T. (Bern U., LHEP) ; Belov, A.S. (Moscow, INR) ; Berggren, K. (CERN) ; Bonomi, G. (INFN, Pavia) ; Bra<unig, P. (Kirchhoff Inst. Phys.) ; Bremer, J. (CERN) ; Brusa, R.S. (Trento U.) ; Cabaret, L. (Paris, Lab. Kastler Brossel) ; Caccia, M. (Insubria U., Como) ; Canali, C. (Zurich U.) ; Caravita, R. (Milan U.) ; Castelli, F. (Milan U.) ; Cerchiari, G. (Heidelberg, Max Planck Inst.) ; Cialdi, S. (Milan U.) ; Comparat, D. (Paris, Lab. Kastler Brossel) ; Consolati, G. (INFN, Milan) ; Derking, H. (CERN) ; Domizio, S.Di (INFN, Genoa) ; Noto, L.Di (Trento U.) ; Doser, M. (CERN) ; Dudarev, A. (Milan Polytechnic) ; Ereditato, A. (INFN, Milan) ; Ferragut, R. (Naples U.) ; Fontana, A. (INFM, Brescia) ; Genova, P. (INFM, Brescia) ; Giammarchi, M. (Naples U.) ; Gligorova, A. (INFN, Genoa) ; Gninenko, S.N. (CERN) ; Haider, S. (Milan Polytechnic) ; Huse, T. (Bergen U.) ; Jordan, E. (Heidelberg, Max Planck Inst.) ; J\Orgensen, L.V. (Milan Polytechnic) ; Kaltenbacher, T. (Milan Polytechnic) ; Kawada, J. (Bern U., LHEP) ; Kellerbauer, A. (Heidelberg, Max Planck Inst.) ; Kimura, M. (Bern U., LHEP) ; Knecht, A. (CERN) ; Krasnicky, D. (Genoa U.) ; Lagomarsino, V. (Genoa U.) ; Lehner, S. (Stefan Meyer Inst. Subatomare Phys.) ; Malbrunot, C. (Stefan Meyer Inst. Subatomare Phys.) ; Mariazzi, S. (Trento U.) ; Matveev, V.A. (Dubna, JINR) ; Moia, F. (INFN, Milan) ; Nebbia, G. (INFN, Padua) ; Nedelec, P. (Lyon, IPN) ; Oberthaler, M.K. (Kirchhoff Inst. Phys.) ; Pacifico, N. (Bergen U.) ; Petracek, V. (Prague, Tech. U.) ; Pistillo, C. (Bern U., LHEP) ; Prelz, F. (Milan Polytechnic) ; Prevedelli, M. (Bologna U.) ; Regenfus, C. (Zurich U.) ; Riccardi, C. (Pavia U.) ; R\Ohne, O. (Oslo U.) ; Rotondi, A. (Pavia U.) ; Sandaker, H. (Bergen U.) ; Storey, J. (Bern U., LHEP) ; Vasquez, M.A.Subieta (INFN, Pavia) ; Spacek, M. (Bologna U.) ; Testera, G. (INFN, Genoa) ; Wildmann, E. (Stefan Meyer Inst. Subatomare Phys.) ; Zavatarelli, S. (INFN, Genoa) ; Zmeskal, J. (Stefan Meyer Inst. Subatomare Phys.)

Published in: JINST
Year: 2014
Vol.: 9    Num./Issue: 01
Page No: C01061
Year: 2014-01-30 published

Abstract: For the first time the AEgIS (Antihydrogen Experiment: Gravity, Interferometry, Spectroscopy) experiment will measure the Earth's local gravitational acceleration g on antimatter through the evaluation of the vertical displacement of an antihydrogen horizontal beam. This will be a model independent test of the Weak Equivalence Principle at the base of the general relativity. The initial goal of a g measurement with a relative uncertainty of 1% will be achieved with less than 1000 detected antihydrogens, provided that their vertical position could be determined with a precision of a few micrometers. An emulsion based detector is very suitable for this purpose featuring an intrinsic sub-micrometric spatial resolution. Nevertheless, the AEgIS experiment requires unprecedented operational conditions for this type of detector, namely vacuum environment and very low temperature. An intense R&D activity is presently going on to optimize the detector for the AEgIS experimental requirements with rather encouraging results.

Web-Page: http://inspirehep.net/record/1327615/files/jinst14_01_c01061.pdf

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DOI: 10.1088/1748-0221/9/01/C01061
 Record created 2014-12-01, last modified 2014-12-01

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