The magnetic field used for radial confinement in a Penning-Malmberg (PM) trap causes charged particles to gyrate rapidly. This motion leads to the emission of radiation, and for light particles such as electrons this mechanism can be used for plasma cooling. We report here some preliminary findings regarding the enhanced cooling rates observed in a new PM trap designed to contain the microwave radiation produced by electrons in magnetic fields B ≈ 0.3 − 1.5 T.
REFERENCES
1.
D. J.
Wineland
and H. G.
Dehmelt
, Journal of Applied Physics
46
, 919
–930
(1975
).2.
D. J.
Larson
, J. C.
Bergquist
, J. J.
Bollinger
, W. M.
Itano
, and D. J.
Wineland
, Phys. Rev. Lett.
57
, p. 70
(1986
).3.
F.
Anderegg
, X.-P.
Huang
, E.
Sarid
, and C.
Driscoll
, Rev. Sci. Instrum.
68
, p. 2367
(1997
).4.
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
, R. S.
Hayano
, M. E.
Hayden
, A. J.
Humphries
, R.
Hydomako
, S.
Jonsell
, L.
Kurchaninov
, R.
Lambo
, N.
Madsen
, S.
Menary
, P.
Nolan
, K.
Olchanski
, A.
Olin
, A.
Povilus
, P.
Pusa
, F.
Robicheaux
, E.
Sarid
, D. M.
Silveira
, C.
So
, J. W.
Storey
, R. I.
Thompson
, D. P.
van der Werf
, D.
Wilding
, J. S.
Wurtele
, and Y.
Yamazaki
(ALPHA
Collaboration
), Phys. Rev. Lett.
105
, p. 013003
(2010
).5.
J. H.
Malmberg
, C. F.
Driscoll
, B.
Beck
, D. L.
Eggleston
, J.
Fajans
, K.
Fine
, X. P.
Huang
, and A. W.
Hyatt
, Nonneutral Plasma Physics
, AIP Conf. Proc.
175
, p. 28
(1988
).6.
A. J.
Peurrung
, “Imaging of instabilities in a pure electron plasma
,” Ph.D. thesis, University of California
, Berkeley
1992
.7.
A. P.
Povilus
, “Cyclotron-cavity mode resonant cooling in single component electron plasmas
,” Ph.D. thesis, University of California
, Berkeley
2015
.8.
A. P.
Povilus
, N. D.
DeTal
, L. T.
Evans
, N.
Evetts
, J.
Fajans
, W. N.
Hardy
, E. D.
Hunter
, I.
Martens
, F.
Robicheaux
, S.
Shanman
, C.
So
, X.
Wang
, and J. S.
Wurtele
, Phys. Rev. Lett.
117
, p. 175001
(2016
).9.
Commercial product from COMSOL, Inc.
, http://www.comsol.com/.10.
N.
Evetts
, Cavity cooling of leptons for increased antihydrogen production at ALPHA
, Master’s thesis, University of British Columbia
(2015
).11.
N.
Evetts
, I.
Martens
, D.
Bizzotto
, D.
Longuevergne
, and W. N.
Hardy
, Rev. Sci. Instrum.
87
, p. 104702
(2016
).12.
T. M.
O’Neil
, Phys. Fluids
23
, p. 2216
(1980
).
This content is only available via PDF.
© 2018 Author(s).
2018
Author(s)
You do not currently have access to this content.
