Skip to Main content Skip to Navigation
Theses

Deceleration of antiprotons from CERN’s ELENA synchrotron and transport of antimatter beams through the GBAR experiment

Abstract : The GBAR experiment aims to perform the first free-fall experiment with antihydrogen atoms to test the weak equivalence principle with antimatter. In a first step, antihydrogen ions are synthesized through a double charge exchange reaction and then cooled by laser to reach sufficiently low energies to observe the effects of gravity. The synthesis of anti-ions requires a very large number of antiprotons. We report in this manuscript a new electrostatic instrument for decelerating antiproton bunches from 100 keV to a few keV . This new technique aims to avoid losses caused by the use of degrader foils. Simulations based on a genetic algorithm made it possible to establish the most suitable electrostatic configurations. Preliminary tests carried out on a prototype are discussed. The technical characteristics of the deceleration system, particularly those related to UHV vacuum, high voltage and safety, are described. Finally, a secondary optical systems such as a switchyard or injection optics into a Penning trap are studied.
Complete list of metadatas

Cited literature [184 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-02526874
Contributor : David Lunney <>
Submitted on : Tuesday, March 31, 2020 - 6:25:57 PM
Last modification on : Wednesday, October 14, 2020 - 3:59:12 AM

File

2019_Husson_these_corrigee.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-02526874, version 1

Collections

Citation

Audric Husson. Deceleration of antiprotons from CERN’s ELENA synchrotron and transport of antimatter beams through the GBAR experiment. General Relativity and Quantum Cosmology [gr-qc]. Universite Paris Saclay, 2018. English. ⟨tel-02526874⟩

Share

Metrics

Record views

81

Files downloads

154