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Design and performance of a novel low energy multispecies beamline for an antihydrogen experiment
,
W. Bertsche,
A. Capra,
C. L. Cesar,
Michael Charlton,
A. J. Christensen,
R. Collister,
A. Cridland Mathad,
Stefan Eriksson ,
A. Evans,
N. Evetts,
S. Fabbri,
J. Fajans,
T. Friesen,
M. C. Fujiwara,
D. R. Gill,
P. Grandemange,
P. Granum,
J. S. Hangst,
M. E. Hayden,
D. Hodgkinson,
Christopher Aled Isaac ,
M. A. Johnson ,
J. M. Jones,
S. A. Jones,
A. Khramov,
L. Kurchaninov,
Niels Madsen ,
Daniel Maxwell ,
J. T. K. McKenna,
S. Menary,
T. Momose,
P. S. Mullan,
J. J. Munich,
K. Olchanski,
J. Peszka,
A. Powell,
C. Ø. Rasmussen,
R. L. Sacramento,
M. Sameed,
E. Sarid,
D. M. Silveira,
C. So,
D. M. Starko,
G. Stutter,
T. D. Tharp,
R. I. Thompson,
C. Torkzaban,
Dirk van der Werf ,
J. S. Wurtele,
(ALPHA Collaboration),
Jack Jones
Physical Review Accelerators and Beams, Volume: 26, Issue: 4
Swansea University Authors:
Christopher Baker , Michael Charlton, Stefan Eriksson , Christopher Aled Isaac , Niels Madsen , Daniel Maxwell , Dirk van der Werf , Jack Jones
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DOI (Published version): 10.1103/physrevaccelbeams.26.040101
Abstract
The ALPHA Collaboration, based at the CERN Antiproton Decelerator, has recently implemented a novel beamline for low energy (≲100 eV) positron and antiproton transport between cylindrical Penning traps that have strong axial magnetic fields. Here, we describe how a combination of semianalytical and...
| Published in: | Physical Review Accelerators and Beams |
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| ISSN: | 2469-9888 |
| Published: |
American Physical Society (APS)
2023
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa63230 |
| Abstract: |
The ALPHA Collaboration, based at the CERN Antiproton Decelerator, has recently implemented a novel beamline for low energy (≲100 eV) positron and antiproton transport between cylindrical Penning traps that have strong axial magnetic fields. Here, we describe how a combination of semianalytical and numerical calculations was used to optimize the layout and design of this beamline. Using experimental measurements taken during the initial commissioning of the instrument, we evaluate its performance and validate the models used for its development. By combining data from a range of sources, we show that the beamline has a high transfer efficiency and estimate that the percentage of particles captured in the experiments from each bunch is (78±3)% for up to 105 antiprotons and (71±5)% for bunches of up to 107 positrons. |
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| Keywords: |
Beam Optics, Penning Traps, Low- & intermediate energy accelerators, Nonneutral plasmas |
| College: |
Faculty of Science and Engineering |
| Funders: |
EPSRC, STFC, Royal Society, Leverhulme Trust |
| Issue: |
4 |