No Cover Image

Conference Paper/Proceeding/Abstract 614 views

Evaporative cooling of antiprotons for the production of trappable antihydrogen / D. M Silveira, G. B Andresen, M. D Ashkezari, M Baquero-Ruiz, W Bertsche, P. D Bowe, E Butler, C. L Cesar, S Chapman, M Charlton, J Fajans, T Friesen, M. C Fujiwara, D. R Gill, J. S Hangst, W. N Hardy, M. E Hayden, R Hydomako, S Jonsell, L Kurchaninov, N Madsen, S Menary, P Nolan, K Olchanski, A Olin, A Povilus, P Pusa, F Robicheaux, E Sarid, C So, J. W Storey, R. I Thompson, D. P. van der Werf, J. S Wurtele, Dirk van der Werf, Niels Madsen

AIP Conference Proceedings, Volume: 1521, Pages: 165 - 174

Swansea University Authors: Dirk van der Werf, Niels Madsen

Full text not available from this repository: check for access using links below.

Check full text

DOI (Published version): 10.1063/1.4796072

Abstract

We describe the implementation of evaporative cooling of charged particles in the ALPHA apparatus. Forced evaporation has been applied to cold samples of antiprotons held in Malmberg-Penning traps. Temperatures on the order of 10 K were obtained, while retaining a significant fraction of the initial...

Full description

Published in: AIP Conference Proceedings
ISSN: 0094-243X
Published: 2013
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa14622
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: We describe the implementation of evaporative cooling of charged particles in the ALPHA apparatus. Forced evaporation has been applied to cold samples of antiprotons held in Malmberg-Penning traps. Temperatures on the order of 10 K were obtained, while retaining a significant fraction of the initial number of particles. We have developed a model for the evaporation process based on simple rate equations and applied it succesfully to the experimental data. We have also observed radial re-distribution of the clouds following evaporation, explained by simple conservation laws. We discuss the relevance of this technique for the recent demonstration of magnetic trapping of antihydrogen.
College: College of Science
Start Page: 165
End Page: 174