Development of energy-tunable positronium beams employing the photodetachment of positronium negative ions

Koji Michishio; Yasuyuki Nagashima

doi:10.56646/jjapcp.2.0_011303

2nd Japan-China Joint Workshop on Positron Science (JWPS2013)

Session ID : 011303

DOI https://doi.org/10.56646/jjapcp.2.0_011303

Conference information

Host: The organizing committee of JWPS2013

Name : 2nd Japan-China Joint Workshop on Positron Science (JWPS2013)

Location : Tsukuba, Japan

Date : December 20, 2013 - December 23, 2013

Advances in analytical techniques and instrumentation

Development of energy-tunable positronium beams employing the photodetachment of positronium negative ions

Koji Michishio, Yasuyuki Nagashima

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CONFERENCE PROCEEDINGS OPEN ACCESS

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Abstract

Recent progress on the development of an energy-tunable positronium beam is reviewed. We describe experimental results for the efficient emission of positronium negative ions from alkali-metal coated tungsten surfaces. The ions generated using this technique have been accelerated by an electric field and photodetached in order to produce positronium beams with a hitherto unrealized energy range up to 1.9 keV.

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