@article{b0e82c1a9fb7409aa80e4b5a913c4aa8,
title = "Measurements of Penning-Malmberg trap patch potentials and associated performance degradation",
abstract = "Antiprotons created by laser ionization of antihydrogen are observed to rapidly escape the ALPHA trap. Further, positron plasmas heat more quickly after the trap is illuminated by laser light for several hours. These phenomena can be caused by patch potentials-variations in the electrical potential along metal surfaces. A simple model of the effects of patch potentials explains the particle loss, and an experimental technique using trapped electrons is developed for measuring the electric field produced by the patch potentials. The model is validated by controlled experiments and simulations.",
author = "{ALPHA Collaboration} and Baker, {C. J.} and W. Bertsche and A. Capra and Cesar, {C. L.} and M. Charlton and A. Christensen and R. Collister and {Cridland Mathad}, A. and S. Eriksson and A. Evans and N. Evetts and J. Fajans and T. Friesen and Fujiwara, {M. C.} and Gill, {D. R.} and P. Grandemange and P. Granum and Hangst, {J. S.} and Hayden, {M. E.} and D. Hodgkinson and Hunter, {E. D.} and Isaac, {C. A.} and Johnson, {M. A.} and J. Jones and Jones, {S. A.} and S. Jonsell and A. Khramov and L. Kurchaninov and H. Landsberger and N. Madsen and D. Maxwell and McKenna, {J. T.K.} and S. Menary and T. Momose and Mullan, {P. S.} and Munich, {J. J.} and K. Olchanski and A. Olin and J. Peszka and A. Powell and P. Pusa and C. Rasmussen and F. Robicheaux and Sacramento, {R. L.} and M. Sameed and E. Sarid and Silveira, {D. M.} and C. So and G. Stutter and Tharp, {T. D.}",
note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",
year = "2024",
month = jan,
day = "1",
doi = "10.1103/PhysRevResearch.6.L012008",
language = "English",
volume = "6",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "1",
}