A pulsed positronium beam using a positron buffer gas trap

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 wit...

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Bibliographic Details
Published in:Review of scientific instruments 2020-03, Vol.91 (3), p.033311-033311
Main Authors: Machacek, J. R., Buckman, S. J., Sullivan, J. P.
Format: Article
Language:English
Subjects:
Buffers
Charge exchange
Collimation
Molecular gases
Plasma
Positron beams
Positronium
Scientific apparatus & instruments
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Summary: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.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.5128012