caa a22 4500 445867183 CHVBK 20180317145501.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1140/epjd/e2011-20552-x doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20552-x Off-axial plasma displacement suitable for antihydrogen production in AEgIS experiment [Elektronische Daten] An application of (1, 0) diocotron mode excitation in low magnetic fields [C. Canali, C. Carraro, D. Krasnicky, V. Lagomarsino, L. Di Noto, G. Testera, S. Zavatarelli] Antihydrogen experiments are currently based on non neutral electron, positron or antiproton plasma manipulation techniques in cylindrical Malmberg-Penning traps. An experimental study of a plasma manipulation technique based on off-axis diocotron displacement is presented. The use of the autoresonant excitation of (1, 0) diocotron mode of pure electron plasma allows a precise positioning of the plasma by moving it across the magnetic field and allows dumping such plasma in a desired angular position. The experimental procedure described here will pave the way to positron loading into an off-axial Penning trap terminated with a positronium converter target as it is proposed for the AEgIS experimental apparatus. The technique was studied over a range of confining magnetic field values and reproduces experimental conditions similar to most of the currently running antihydrogen experiments. The efficiency of the autoresonant excitation - in terms of plasma expansion rate and particle loss - is analyzed, studying the behaviour of electron plasma subjected to large off-axial displacements, showing that this method fulfills the requirements imposed by the AEgIS experiment. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Canali C. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut Carraro C. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut Krasnicky D. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut Lagomarsino V. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut Di Noto L. Università di Trento and INFN, Gruppo Collegato di Trento, via Sommarive 14, Povo, 38050, Trento, Italy aut Testera G. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut Zavatarelli S. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut The European Physical Journal D Springer-Verlag 65/3(2011-12-01), 499-504 1434-6060 65:3<499 2011 65 10053 https://doi.org/10.1140/epjd/e2011-20552-x text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20552-x text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Canali C. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut NATIONALLICENCE 700 1- Carraro C. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut NATIONALLICENCE 700 1- Krasnicky D. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut NATIONALLICENCE 700 1- Lagomarsino V. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut NATIONALLICENCE 700 1- Di Noto L. Università di Trento and INFN, Gruppo Collegato di Trento, via Sommarive 14, Povo, 38050, Trento, Italy aut NATIONALLICENCE 700 1- Testera G. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut NATIONALLICENCE 700 1- Zavatarelli S. Istituto Nazionale Fisica Nucleare Sez. Genova, via Dodecaneso 33, 16146, Genova, Italy aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 65/3(2011-12-01), 499-504 1434-6060 65:3<499 2011 65 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer