Pre-excitation studies for rubidium-plasma generation

Aladi, Márk and Bakos, József and Barna, Imre Ferenc and Czitrovszky, Aladár and Dzsotjan (Djotyan), Gagik and Dombi, Péter and Dzsotján, Dávid and Földes, István and Hamar, Gergő and Ignácz, Péter and Kedves, Miklós and Kerekes, Attila and Lévai, Péter and Márton, István and Nagy, Attila Tibor and Oszetzky, Dániel and Pocsai, Mihály András and Rácz, Péter and Ráczkevi, Béla and Szigeti, János and Sörlei, Zsuzsanna and Szipőcs, Róbert and Varga, Dezső and Varga-Umbrich, Károly and Varró, Sándor and Vámos, Lénárd and Vesztergombi, György (2014) Pre-excitation studies for rubidium-plasma generation. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 740 (11). pp. 203-207. ISSN 0168-9002

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Abstract

The key element in the Proton-Driven-Plasma-Wake-Field-Accelerator (AWAKE) project is the generation of highly uniform plasma from Rubidium vapor. The standard way to achieve full ionization is to use high power laser which can assure the over-barrier-ionization (OBI) along the 10 meters long active region. The Wigner-team in Budapest is investigating an alternative way of uniform plasma generation. The proposed Resonance Enhanced Multi Photon Ionization (REMPI) scheme probably can be realized by much less laser power. In the following the resonant pre-excitations of the Rb atoms are investigated, theoretically and the status report about the preparatory work on the experiment are presented.

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