A pulsed high-voltage decelerator system to deliver low-energy antiprotons

Husson, A.; Kim, B.H.; Welker, A.; Charlton, M.; Choi, J.; Chung, М.; Cladé, Pierre; Comini, P.; Crépin, P.-P.; Dalkarov, O. D.; Debu, P.; Dodd, L.; Douillet, A.; Guellati-Khélifa, Saïda; Garroum, N.; Hervieux, Paul-Antoine; Hilico, Laurent; Indelicato, P.; Janka, Gianluca; Jonsell, Svante; Karr, Jean‐Philippe; Kim, E.-S.; Kim, S.K.; Ko, Y. J.; Kosiński, Tymoteusz; Kuroda, N.; Latacz, B. M.; Lee, Hyo-Rim; Lee, J.; Leite, A. M. M.; Lévêque, K.; Lim, Eunhoon; Liszkay, L.; Lotrus, P.; Lunney, D.; Manfredi, Giovanni; Mansoulié, B.; Matusiak, M.; Mornacchi, G.; Nesvizhevsky, V. V.; Nez, F.; Niang, S.; Nishi, R.; Nourbaksh, S.; Park, Kang Hyun; Paul, N.; Pérez, P.; Procureur, S.; Radics, B.; Regenfus, C.; Reymond, J. M.; Reynaud, Serge; Roussé, J.-Y.; Rousselle, Olivier; Rubbia, A.; Rzadkiewicz, J.; Sacquin, Y.; Schmidt‐Kaler, F.; Staszczak, M.; Tuchming, B.; Vallage, B.; Voronin, A. Yu.; Werf, D. P. van der; Wolf, S.; Won, Dong Hwan; Wronka, S.; Yamazaki, Y.; Yoo, Kyung Hee

doi:10.1016/j.nima.2021.165245

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…Further losses are expected due to antiproton capture at sub-keV energies [51,52]. Alternative methods such as electrostatic drift tubes [166] may be used to efficiently decelerate such slow antiprotons.…”

Section: Discussionmentioning

confidence: 99%

Large nuclear scattering effects in antiproton transmission through polymer and metal-coated foils

Nordlund

Hori²,

Sundholm³

2022

Phys. Rev. A

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Section: Discussionmentioning

confidence: 99%

Large nuclear scattering effects in antiproton transmission through polymer and metal-coated foils

Nordlund

Hori²,

Sundholm³

2022

Phys. Rev. A

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“…These antiprotons are further decelerated to 100 keV by a new deceleration ring called ELENA, then transported to the GBAR beam line. Using a scheme based on electrostatic deceleration in a drift tube, the 100 keV ELENA beam is slowed down to 1 -10 keV [6] before the antiproton trap. Otherwise, energy degrader foils must be used, resulting in a significant loss of antiprotons.…”

Section: Introductionmentioning

confidence: 99%

Design study of an antiproton trap for the GBAR experiment

et al. 2022

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The GBAR (Gravitational Behaviour of Antihydrogen at Rest) experiment at CERN has been proposed to measure the gravitational acceleration of the ultracold antihydrogen atoms. This experiment produces antihydrogen ions through interactions between antiprotons and positronium atoms. Then, antihydrogen atoms are produced for the free-fall experiment after the photo-detachment of an excess positron from the cold antihydrogen ions. The energy of the antiproton beam before the positronium target chamber will be in the range of 1–10 keV. The cross-section for the reaction between the antiprotons and positroniums depends mainly on the energy of the antiprotons. Hence, to maximize the productivity of antihydrogen ions, a sufficient number of antiprotons should be provided with well-controlled energy. In this regard, an antiproton trap is considered to accumulate and slow down antiproton beams, and cool them utilizing the electron cooling technique. This trap is designed based on the Penning-Malmberg trap, which consists of a superconducting solenoid magnet and a series of ring electrodes including high-voltage electrodes to trap antiprotons. In addition, a set of extraction electrodes and optics for beam transport are used. Each electrode has been designed and optimized using the WARP PIC simulations. In this study, the design and simulation results of each trap component are presented.

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