A pulsed positronium beam using a positron buffer gas trap

J. R. Machacek; S. J. Buckman; J. P. Sullivan

doi:10.1063/1.5128012

A pulsed positronium beam using a positron buffer gas trap

J. R. Machacek^*, S. J. Buckman, J. P. Sullivan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We describe the operation of a pulsed positronium beam based on a two-stage buffer gas positron trap (BGT) or a Surko trap. The BGT allows the areal density and temporal spread of the positron beam to be tailored. This tailored positron beam is used to form a positronium beam via charge exchange with an atomic or molecular gas. The resulting positronium beam is energy tunable, and the collimated beam relies on the angular differential positronium production cross section of the atomic or molecular gas used.

Original language	English
Article number	033311
Journal	Review of Scientific Instruments
Volume	91
Issue number	3
DOIs	https://doi.org/10.1063/1.5128012
Publication status	Published - 6 Mar 2020

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AB - We describe the operation of a pulsed positronium beam based on a two-stage buffer gas positron trap (BGT) or a Surko trap. The BGT allows the areal density and temporal spread of the positron beam to be tailored. This tailored positron beam is used to form a positronium beam via charge exchange with an atomic or molecular gas. The resulting positronium beam is energy tunable, and the collimated beam relies on the angular differential positronium production cross section of the atomic or molecular gas used.

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A pulsed positronium beam using a positron buffer gas trap

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