Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum

Abstract : We describe a system designed to re-bunch positron pulses delivered by an accumulator supplied by a positron source and a Surko-trap. Positron pulses from the accumulator are magnetically guided in a 0.085 T field and are injected into a region free of magnetic fields through a μμ-metal field terminator. Here positrons are temporally compressed, electrostatically guided and accelerated towards a porous silicon target for the production and emission of positronium into vacuum. Positrons are focused in a spot of less than 4 mm FWTM in bunches of ∼8 ns FWHM. Emission of positronium into the vacuum is shown by single shot positron annihilation lifetime spectroscopy.
Complete list of metadatas

Cited literature [29 references]  Display  Hide  Download

http://hal.in2p3.fr/in2p3-01258082
Contributor : Dominique Girod <>
Submitted on : Monday, January 18, 2016 - 4:02:32 PM
Last modification on : Tuesday, November 19, 2019 - 2:38:24 AM
Long-term archiving on : Friday, November 11, 2016 - 10:00:12 AM

File

1-s2.0-S0168583X15008708-main....
Publisher files allowed on an open archive

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

S. Aghion, C. Amsler, A. Ariga, T. Ariga, A.S. Belov, et al.. Positron bunching and electrostatic transport system for the production and emission of dense positronium clouds into vacuum. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2015, 362, pp.86-92. ⟨10.1016/j.nimb.2015.08.097⟩. ⟨in2p3-01258082⟩

Share

Metrics

Record views

190

Files downloads

274