Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping

G. B. Andresen; W. Bertsche; C. C. Bray; E. Butler; C. L. Cesar; S. Chapman; M. Charlton; J. Fajans; M. C. Fujiwara; D. R. Gill; W. N. Hardy; R. S. Hayano; M. E. Hayden; A. J. Humphries; R. Hydomako; L. V. Jørgensen; S. J. Kerrigan; J. Keller; L. Kurchaninov; R. Lambo; N. Madsen; P. Nolan; K. Olchanski; A. Olin; A. Povilus; P. Pusa; F. Robicheaux; E. Sarid; S. Seif El Nasr; D. M. Silveira; J. W. Storey; R. I. Thompson; D. P. Van Der Werf; J. S. Wurtele; Y. Yamazaki

doi:10.1063/1.3258840

Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping

G. B. Andresen, W. Bertsche, C. C. Bray, E. Butler, C. L. Cesar, S. Chapman, M. Charlton, J. Fajans, M. C. Fujiwara, D. R. Gill, W. N. Hardy, R. S. Hayano, M. E. Hayden, A. J. Humphries, R. Hydomako, L. V. Jørgensen, S. J. Kerrigan, J. Keller, L. Kurchaninov, R. LamboN. Madsen, P. Nolan, K. Olchanski, A. Olin, A. Povilus, P. Pusa, F. Robicheaux, E. Sarid, S. Seif El Nasr, D. M. Silveira, J. W. Storey, R. I. Thompson, D. P. Van Der Werf, J. S. Wurtele, Y. Yamazaki

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6 Scopus citations

Abstract

In many antihydrogen trapping schemes, antiprotons held in a short-well Penning-Malmberg trap are released into a longer well. This process necessarily causes the bounce-averaged rotation frequency ̄ω_r of the antiprotons around the trap axis to pass through zero. In the presence of a transverse magnetic multipole, experiments and simulations show that many antiprotons (over 30% in some cases) can be lost to a hitherto unidentified bounce-resonant process when ̄ω_r is close to zero.

Original language	English
Article number	100702
Journal	Physics of Plasmas
Volume	16
Issue number	10
DOIs	https://doi.org/10.1063/1.3258840
State	Published - 11 Nov 2009
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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Andresen, G. B., Bertsche, W., Bray, C. C., Butler, E., Cesar, C. L., Chapman, S., Charlton, M., Fajans, J., Fujiwara, M. C., Gill, D. R., Hardy, W. N., Hayano, R. S., Hayden, M. E., Humphries, A. J., Hydomako, R., Jørgensen, L. V., Kerrigan, S. J., Keller, J., Kurchaninov, L., ... Yamazaki, Y. (2009). Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping. Physics of Plasmas, 16(10), [100702]. https://doi.org/10.1063/1.3258840

@article{a376ccd4e0ed496e968a950ccf56b495,

title = "Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping",

abstract = "In many antihydrogen trapping schemes, antiprotons held in a short-well Penning-Malmberg trap are released into a longer well. This process necessarily causes the bounce-averaged rotation frequency{\= }ωr of the antiprotons around the trap axis to pass through zero. In the presence of a transverse magnetic multipole, experiments and simulations show that many antiprotons (over 30% in some cases) can be lost to a hitherto unidentified bounce-resonant process when{\= }ωr is close to zero.",

author = "Andresen, {G. B.} and W. Bertsche and Bray, {C. C.} and E. Butler and Cesar, {C. L.} and S. Chapman and M. Charlton and J. Fajans and Fujiwara, {M. C.} and Gill, {D. R.} and Hardy, {W. N.} and Hayano, {R. S.} and Hayden, {M. E.} and Humphries, {A. J.} and R. Hydomako and J{\o}rgensen, {L. V.} and Kerrigan, {S. J.} and J. Keller and L. Kurchaninov and R. Lambo and N. Madsen and P. Nolan and K. Olchanski and A. Olin and A. Povilus and P. Pusa and F. Robicheaux and E. Sarid and {El Nasr}, {S. Seif} and Silveira, {D. M.} and Storey, {J. W.} and Thompson, {R. I.} and {Van Der Werf}, {D. P.} and Wurtele, {J. S.} and Y. Yamazaki",

note = "Funding Information: This work was supported by CNPq, FINEP (Brazil), ISF (Israel), MEXT (Japan), FNU (Denmark), NSERC, NRC/TRIUMF (Canada), DOE (USA), and EPSRC and the Leverhulme Trust (U.K.).",

year = "2009",

month = nov,

day = "11",

doi = "10.1063/1.3258840",

language = "English",

volume = "16",

journal = "Physics of Plasmas",

issn = "1070-664X",

publisher = "American Institute of Physics",

number = "10",

}

Andresen, GB, Bertsche, W, Bray, CC, Butler, E, Cesar, CL, Chapman, S, Charlton, M, Fajans, J, Fujiwara, MC, Gill, DR, Hardy, WN, Hayano, RS, Hayden, ME, Humphries, AJ, Hydomako, R, Jørgensen, LV, Kerrigan, SJ, Keller, J, Kurchaninov, L, Lambo, R, Madsen, N, Nolan, P, Olchanski, K, Olin, A, Povilus, A, Pusa, P, Robicheaux, F, Sarid, E, El Nasr, SS, Silveira, DM, Storey, JW, Thompson, RI, Van Der Werf, DP, Wurtele, JS & Yamazaki, Y 2009, 'Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping', Physics of Plasmas, vol. 16, no. 10, 100702. https://doi.org/10.1063/1.3258840

TY - JOUR

T1 - Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping

AU - Andresen, G. B.

AU - Bertsche, W.

AU - Bray, C. C.

AU - Butler, E.

AU - Cesar, C. L.

AU - Chapman, S.

AU - Charlton, M.

AU - Fajans, J.

AU - Fujiwara, M. C.

AU - Gill, D. R.

AU - Hardy, W. N.

AU - Hayano, R. S.

AU - Hayden, M. E.

AU - Humphries, A. J.

AU - Hydomako, R.

AU - Jørgensen, L. V.

AU - Kerrigan, S. J.

AU - Keller, J.

AU - Kurchaninov, L.

AU - Lambo, R.

AU - Madsen, N.

AU - Nolan, P.

AU - Olchanski, K.

AU - Olin, A.

AU - Povilus, A.

AU - Pusa, P.

AU - Robicheaux, F.

AU - Sarid, E.

AU - El Nasr, S. Seif

AU - Silveira, D. M.

AU - Storey, J. W.

AU - Thompson, R. I.

AU - Van Der Werf, D. P.

AU - Wurtele, J. S.

AU - Yamazaki, Y.

N1 - Funding Information: This work was supported by CNPq, FINEP (Brazil), ISF (Israel), MEXT (Japan), FNU (Denmark), NSERC, NRC/TRIUMF (Canada), DOE (USA), and EPSRC and the Leverhulme Trust (U.K.).

PY - 2009/11/11

Y1 - 2009/11/11

N2 - In many antihydrogen trapping schemes, antiprotons held in a short-well Penning-Malmberg trap are released into a longer well. This process necessarily causes the bounce-averaged rotation frequency ̄ωr of the antiprotons around the trap axis to pass through zero. In the presence of a transverse magnetic multipole, experiments and simulations show that many antiprotons (over 30% in some cases) can be lost to a hitherto unidentified bounce-resonant process when ̄ωr is close to zero.

AB - In many antihydrogen trapping schemes, antiprotons held in a short-well Penning-Malmberg trap are released into a longer well. This process necessarily causes the bounce-averaged rotation frequency ̄ωr of the antiprotons around the trap axis to pass through zero. In the presence of a transverse magnetic multipole, experiments and simulations show that many antiprotons (over 30% in some cases) can be lost to a hitherto unidentified bounce-resonant process when ̄ωr is close to zero.

UR - http://www.scopus.com/inward/record.url?scp=70350774349&partnerID=8YFLogxK

U2 - 10.1063/1.3258840

DO - 10.1063/1.3258840

M3 - Article

AN - SCOPUS:70350774349

SN - 1070-664X

VL - 16

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 10

M1 - 100702

ER -

Magnetic multipole induced zero-rotation frequency bounce-resonant loss in a Penning-Malmberg trap used for antihydrogen trapping

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