Development of nuclear emulsions operating in vacuum for the AEgIS experiment

Scampoli, P.; Aghion, S.; Ahlén, O.; Amsler, C.; Ariga, A.; Ariga, T.; Belov, A. S.; Berggren, K.; Bonomi, G.; Bräunig, P.; Bremer, J.; Brusa, R. S.; Cabaret, L.; Caccia, Massimo; Canali, C.; Caravita, R.; Castelli, F.; Cerchiari, G.; Cialdi, S.; Comparat, D.; Consolati, G.; Derking, H.; Di Domizio, S.; Di Noto, L.; Doser, M.; Dudarev, A.; Ereditato, A.; Ferragut, R.; Fontana, A.; Genova, P.; Giammarchi, M.; Gligorova, A.; Gninenko, S. N.; Haider, S.; Huse, T.; Jordan, E.; Jørgensen, L. V.; Kaltenbacher, T.; Kawada, J.; Kellerbauer, A.; Kimura, M.; Knecht, A.; Krasnický, D.; Lagomarsino, V.; Lehner, S.; Malbrunot, C.; Mariazzi, S.; Matveev, V. A.; Moia, F.; Nebbia, G.; Nédélec, P.; Oberthaler, M. K.; Pacifico, N.; Petráček, V.; Pistillo, C.; Prelz, F.; Prevedelli, M.; Regenfus, C.; Riccardi, C.; Røhne, O.; Rotondi, A.; Sandaker, H.; Storey, J.; Subieta Vasquez, M. A.; Špaček, M.; Testera, G.; Wildmann, E.; Zavatarelli, S.; Zmeskal, J.

doi:10.1088/1748-0221/9/01/C01061

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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 re- quires 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.

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Titolo:	Development of nuclear emulsions operating in vacuum for the AEgIS experiment
Autori:	P. Scampoli S. Aghion O. Ahlén C. Amsler A. Ariga T. Ariga A. S. Belov K. Berggren G. Bonomi P. Bräunig J. Bremer R. S. Brusa L. Cabaret CACCIA, MASSIMO LUIGI MARIA C. Canali R. Caravita F. Castelli G. Cerchiari S. Cialdi D. Comparat G. Consolati H. Derking S. Di Domizio L. Di Noto M. Doser A. Dudarev A. Ereditato R. Ferragut A. Fontana P. Genova M. Giammarchi A. Gligorova S. N. Gninenko S. Haider T. Huse E. Jordan L. V. JØrgensen T. Kaltenbacher J. Kawada A. Kellerbauer M. Kimura A. Knecht D. Krasnický V. Lagomarsino S. Lehner C. Malbrunot S. Mariazzi V. A. Matveev F. Moia G. Nebbia P. Nédélec M. K. Oberthaler N. Pacifico V. Petráček C. Pistillo F. Prelz M. Prevedelli C. Regenfus C. Riccardi O. RØhne A. Rotondi H. Sandaker J. Storey M. A. Subieta Vasquez M. Špaček G. Testera E. Wildmann S. Zavatarelli J. Zmeskal mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2014
Rivista:	JOURNAL OF INSTRUMENTATION
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 re- quires 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.
Handle:	http://hdl.handle.net/11383/1966720
Appare nelle tipologie:	Relazione (in Rivista)

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