The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen

R. Akbari; B. X.R. Alves; C. J. Baker; M. Baquero-Ruiz; W. Bertsche; E. Butler; C. Burrows; A. Capra; C. L. Cesar; M. Charlton; R. Collister; A. Cridland; S. Eriksson; A. Evans; L. T. Evans; N. Evetts; J. Fajans; T. Friesen; M. C. Fujiwara; D. R. Gill; P. Grandemange; P. Granum; A. Gutierrez; J. S. Hangst; M. E. Hayden; D. Hodgkinson; C. A. Isaac; A. Ishida; M. A. Johnson; J. M. Jones; S. A. Jones; S. Jonsell; A. Khramov; L. Kurchaninov; A. Little; N. Madsen; D. Maxwell; J. T.K. McKenna; S. Menary; J. M. Michan; T. Momose; P. S. Mullan; K. Olchanski; A. Olin; J. Peszka; A. Povilus; A. Powell; P. Pusa; C. Rasmussen; R. L. Sacramento; M. Sameed; E. Sarid; D. M. Silveira; C. So; S. Stracka; G. Stutter; T. D. Tharp; R. I. Thompson; C. Torkzaban; D. P. van der Werf; J. S. Wurtele

doi:10.1016/j.nima.2024.170194

The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen

R. Akbari, B. X.R. Alves, C. J. Baker, M. Baquero-Ruiz, W. Bertsche, E. Butler, C. Burrows, A. Capra, C. L. Cesar, M. Charlton, R. Collister, A. Cridland, S. Eriksson, A. Evans, L. T. Evans, N. Evetts, J. Fajans, T. Friesen, M. C. Fujiwara, D. R. GillP. Grandemange, P. Granum, A. Gutierrez, J. S. Hangst, M. E. Hayden, D. Hodgkinson, C. A. Isaac, A. Ishida, M. A. Johnson, J. M. Jones, S. A. Jones, S. Jonsell, A. Khramov, L. Kurchaninov, A. Little, N. Madsen, D. Maxwell, J. T.K. McKenna, S. Menary, J. M. Michan, T. Momose, P. S. Mullan, K. Olchanski, A. Olin, J. Peszka, A. Povilus, A. Powell, P. Pusa, C. Rasmussen, R. L. Sacramento, M. Sameed, E. Sarid, D. M. Silveira, C. So, S. Stracka, G. Stutter, T. D. Tharp, R. I. Thompson, C. Torkzaban, D. P. van der Werf, J. S. Wurtele

Department of Physics

Research output: Contribution to journal › Article › peer-review

Abstract

This paper describes the ALPHA-2 apparatus, used at the CERN Antiproton Decelerator facility for the study of trapped antihydrogen atoms. Details of both the construction and performance are included. Prominence is given to both the new and the improved features, with respect to the original ALPHA assembly, of the apparatus including a stand-alone antiproton catching trap, the traps used to mix antiparticles to produce the anti-atoms, the magnetic atom trap used to hold some of them, and access for laser light to facilitate excitation of the antihydrogen 1S-2P and 1S-2S transitions.

Original language	English
Article number	170194
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	1072
DOIs	https://doi.org/10.1016/j.nima.2024.170194
State	Published - 1 Mar 2025

Keywords

Antihydrogen
Antiprotons
Catching trap
Lasers
Microwaves
Neutral atom trap
Positrons
Silicon vertex detector

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

Access to Document

10.1016/j.nima.2024.170194

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Akbari, R., Alves, B. X. R., Baker, C. J., Baquero-Ruiz, M., Bertsche, W., Butler, E., Burrows, C., Capra, A., Cesar, C. L., Charlton, M., Collister, R., Cridland, A., Eriksson, S., Evans, A., Evans, L. T., Evetts, N., Fajans, J., Friesen, T., Fujiwara, M. C., ... Wurtele, J. S. (2025). The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1072, Article 170194. https://doi.org/10.1016/j.nima.2024.170194

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abstract = "This paper describes the ALPHA-2 apparatus, used at the CERN Antiproton Decelerator facility for the study of trapped antihydrogen atoms. Details of both the construction and performance are included. Prominence is given to both the new and the improved features, with respect to the original ALPHA assembly, of the apparatus including a stand-alone antiproton catching trap, the traps used to mix antiparticles to produce the anti-atoms, the magnetic atom trap used to hold some of them, and access for laser light to facilitate excitation of the antihydrogen 1S-2P and 1S-2S transitions.",

keywords = "Antihydrogen, Antiprotons, Catching trap, Lasers, Microwaves, Neutral atom trap, Positrons, Silicon vertex detector",

author = "R. Akbari and Alves, {B. X.R.} and Baker, {C. J.} and M. Baquero-Ruiz and W. Bertsche and E. Butler and C. Burrows and A. Capra and Cesar, {C. L.} and M. Charlton and R. Collister and A. Cridland and S. Eriksson and A. Evans and Evans, {L. T.} and N. Evetts and J. Fajans and T. Friesen and Fujiwara, {M. C.} and Gill, {D. R.} and P. Grandemange and P. Granum and A. Gutierrez and Hangst, {J. S.} and Hayden, {M. E.} and D. Hodgkinson and Isaac, {C. A.} and A. Ishida and Johnson, {M. A.} and Jones, {J. M.} and Jones, {S. A.} and S. Jonsell and A. Khramov and L. Kurchaninov and A. Little and N. Madsen and D. Maxwell and McKenna, {J. T.K.} and S. Menary and Michan, {J. M.} and T. Momose and Mullan, {P. S.} and K. Olchanski and A. Olin and J. Peszka and A. Povilus and A. Powell and P. Pusa and C. Rasmussen and Sacramento, {R. L.} and M. Sameed and E. Sarid and Silveira, {D. M.} and C. So and S. Stracka and G. Stutter and Tharp, {T. D.} and Thompson, {R. I.} and C. Torkzaban and {van der Werf}, {D. P.} and Wurtele, {J. S.}",

note = "Publisher Copyright: {\textcopyright} 2024",

year = "2025",

month = mar,

day = "1",

doi = "10.1016/j.nima.2024.170194",

language = "English",

volume = "1072",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

publisher = "Elsevier B.V.",

}

Akbari, R, Alves, BXR, Baker, CJ, Baquero-Ruiz, M, Bertsche, W, Butler, E, Burrows, C, Capra, A, Cesar, CL, Charlton, M, Collister, R, Cridland, A, Eriksson, S, Evans, A, Evans, LT, Evetts, N, Fajans, J, Friesen, T, Fujiwara, MC, Gill, DR, Grandemange, P, Granum, P, Gutierrez, A, Hangst, JS, Hayden, ME, Hodgkinson, D, Isaac, CA, Ishida, A, Johnson, MA, Jones, JM, Jones, SA, Jonsell, S, Khramov, A, Kurchaninov, L, Little, A, Madsen, N, Maxwell, D, McKenna, JTK, Menary, S, Michan, JM, Momose, T, Mullan, PS, Olchanski, K, Olin, A, Peszka, J, Povilus, A, Powell, A, Pusa, P, Rasmussen, C, Sacramento, RL, Sameed, M, Sarid, E, Silveira, DM, So, C, Stracka, S, Stutter, G, Tharp, TD, Thompson, RI, Torkzaban, C, van der Werf, DP & Wurtele, JS 2025, 'The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 1072, 170194. https://doi.org/10.1016/j.nima.2024.170194

TY - JOUR

T1 - The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen

AU - Akbari, R.

AU - Alves, B. X.R.

AU - Baker, C. J.

AU - Baquero-Ruiz, M.

AU - Bertsche, W.

AU - Butler, E.

AU - Burrows, C.

AU - Capra, A.

AU - Cesar, C. L.

AU - Charlton, M.

AU - Collister, R.

AU - Cridland, A.

AU - Eriksson, S.

AU - Evans, A.

AU - Evans, L. T.

AU - Evetts, N.

AU - Fajans, J.

AU - Friesen, T.

AU - Fujiwara, M. C.

AU - Gill, D. R.

AU - Grandemange, P.

AU - Granum, P.

AU - Gutierrez, A.

AU - Hangst, J. S.

AU - Hayden, M. E.

AU - Hodgkinson, D.

AU - Isaac, C. A.

AU - Ishida, A.

AU - Johnson, M. A.

AU - Jones, J. M.

AU - Jones, S. A.

AU - Jonsell, S.

AU - Khramov, A.

AU - Kurchaninov, L.

AU - Little, A.

AU - Madsen, N.

AU - Maxwell, D.

AU - McKenna, J. T.K.

AU - Menary, S.

AU - Michan, J. M.

AU - Momose, T.

AU - Mullan, P. S.

AU - Olchanski, K.

AU - Olin, A.

AU - Peszka, J.

AU - Povilus, A.

AU - Powell, A.

AU - Pusa, P.

AU - Rasmussen, C.

AU - Sacramento, R. L.

AU - Sameed, M.

AU - Sarid, E.

AU - Silveira, D. M.

AU - So, C.

AU - Stracka, S.

AU - Stutter, G.

AU - Tharp, T. D.

AU - Thompson, R. I.

AU - Torkzaban, C.

AU - van der Werf, D. P.

AU - Wurtele, J. S.

PY - 2025/3/1

Y1 - 2025/3/1

N2 - This paper describes the ALPHA-2 apparatus, used at the CERN Antiproton Decelerator facility for the study of trapped antihydrogen atoms. Details of both the construction and performance are included. Prominence is given to both the new and the improved features, with respect to the original ALPHA assembly, of the apparatus including a stand-alone antiproton catching trap, the traps used to mix antiparticles to produce the anti-atoms, the magnetic atom trap used to hold some of them, and access for laser light to facilitate excitation of the antihydrogen 1S-2P and 1S-2S transitions.

AB - This paper describes the ALPHA-2 apparatus, used at the CERN Antiproton Decelerator facility for the study of trapped antihydrogen atoms. Details of both the construction and performance are included. Prominence is given to both the new and the improved features, with respect to the original ALPHA assembly, of the apparatus including a stand-alone antiproton catching trap, the traps used to mix antiparticles to produce the anti-atoms, the magnetic atom trap used to hold some of them, and access for laser light to facilitate excitation of the antihydrogen 1S-2P and 1S-2S transitions.

KW - Antihydrogen

KW - Antiprotons

KW - Catching trap

KW - Lasers

KW - Microwaves

KW - Neutral atom trap

KW - Positrons

KW - Silicon vertex detector

UR - http://www.scopus.com/inward/record.url?scp=85215429385&partnerID=8YFLogxK

U2 - 10.1016/j.nima.2024.170194

DO - 10.1016/j.nima.2024.170194

M3 - Article

AN - SCOPUS:85215429385

SN - 0168-9002

VL - 1072

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

M1 - 170194

ER -

The ALPHA-2 apparatus - facilitating experimentation with trapped antihydrogen

Abstract

Keywords

ASJC Scopus subject areas

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