Dynamics of charge particles in the stellatron type focusing system

V. Bykovsky; A. Kobets; Y. Korotaev; V. Malakhov; I. Meshkov; R. Pivin; A. Rudakov; I. Seleznev; A. Sidorin; A. Smirnov; G. Trubnikov; S. Yakovenko

doi:10.1117/12.693203

31 May 2006 Dynamics of charge particles in the stellatron type focusing system

V. Bykovsky, A. Kobets, Y. Korotaev, V. Malakhov, I. Meshkov, R. Pivin, A. Rudakov, I. Seleznev, A. Sidorin, A. Smirnov, G. Trubnikov, S. Yakovenko

Author Affiliations +

Proceedings Volume 6278, Seventh Seminar on Problems of Theoretical and Applied Electron and Ion Optics; 62780H (2006) https://doi.org/10.1117/12.693203
Event: Seventh Seminar on Problems of Theoretical and Applied Electron and Ion Optics, 2005, Moscow, Russian Federation

Abstract

The Low Energy Particle Toroidal Accumulator (LEPTA) was commissioned in September 2004 at JINR. The facility is dedicated to studies of particle beam dynamics in a storage ring with longitudinal magnetic field focusing (so called "stellatron"), application of circulating electron beam to electron cooling of antiprotons and ions in adjoining storage ring, electron cooling of positrons, and positronium in-flight generation. The last modes of the ring operation enables setting of numerous experiments with positronium in-flight and generation of directed and "monoenergetic" flux of antihydrogen. The positronium (Ps) atoms appear in recombination of positrons with cooling electrons inside the cooling section of the ring. An assembling of the storage ring LEPTA was completed during year 2004. Peculiarity of the storage ring is focusing of circulating particles with longitudinal magnetic field which covers whole orbit. As result, the particle motion in the ring is coupled in transverse plane. First results of the experimental study of the particle dynamics in the ring performed with circulating electron beam are presented. The beam lifetime was achieved above 20 ms at electron energy of 4 keV and vacuum pressure of 30 mTorr. The limitations of the beam lifetime and the possibility of its enhancement are discussed in the report.

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V. Bykovsky, A. Kobets, Y. Korotaev, V. Malakhov, I. Meshkov, R. Pivin, A. Rudakov, I. Seleznev, A. Sidorin, A. Smirnov, G. Trubnikov, and S. Yakovenko "Dynamics of charge particles in the stellatron type focusing system", Proc. SPIE 6278, Seventh Seminar on Problems of Theoretical and Applied Electron and Ion Optics, 62780H (31 May 2006); https://doi.org/10.1117/12.693203

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KEYWORDS

Magnetism

Particles

Electron beams

Superposition

Chemical species

Ions

Copper

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