Collimated positronium production from gases

Michael Shipman; Simon J. Brawley; László Sarkadi; Gaetana Laricchia

doi:10.1140/epjd/e2014-40791-5

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2022 Impact factor 1.8

Atomic, Molecular, Optical and Plasma Physics

Topical issue: Electron and Positron Induced Processes. Guest editors: Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma

Open Access

Eur. Phys. J. D (2014) 68: 75
https://doi.org/10.1140/epjd/e2014-40791-5

Regular Article

Collimated positronium production from gases^*

Michael Shipman¹^a, Simon J. Brawley¹, László Sarkadi² and Gaetana Laricchia¹^b

¹ UCL Department of Physics and Astronomy, University College London, Gower St., London, WC1E 6BT, UK
² Institute of Nuclear Research of the Hungarian Academy of Sciences (ATOMKI), 4001 Debrecen, P.O. Box 51, Hungary

^a e-mail: michael.shipman.09@ucl.ac.uk
^b e-mail: g.laricchia@ucl.ac.uk

Received: 12 December 2013
Received in final form: 4 February 2014
Published online: 3 April 2014

Abstract

New data for positronium beam production efficiency are presented. As a converter of positrons to forward-going positronium, O₂ has been found to be as good as CO₂ from ~250 to 400 eV. Preliminary data is also presented for the production efficiency from Ar at 2.8 eV.

Contribution to the Topical Issue “Electron and Positron Induced Processes”, edited by Michael Brunger, Radu Campeanu, Masamitsu Hoshino, Oddur Ingólfsson, Paulo Limão-Vieira, Nigel Mason, Yasuyuki Nagashima and Hajime Tanuma.

© The Author(s) 2014. This article is published with open access at Springerlink.com