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Proceedings Paper

Dynamics of charge particles in the stellatron type focusing system
Author(s): V. Bykovsky; A. Kobets; Y. Korotaev; V. Malakhov; I. Meshkov; R. Pivin; A. Rudakov; I. Seleznev; A. Sidorin; A. Smirnov; G. Trubnikov; S. Yakovenko
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Paper 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.

Paper Details

Date Published: 31 May 2006
PDF: 9 pages
Proc. SPIE 6278, Seventh Seminar on Problems of Theoretical and Applied Electron and Ion Optics, 62780H (31 May 2006); doi: 10.1117/12.693203
Show Author Affiliations
V. Bykovsky, Joint Institute for Nuclear Research (Russia)
A. Kobets, Joint Institute for Nuclear Research (Russia)
Y. Korotaev, Joint Institute for Nuclear Research (Russia)
V. Malakhov, Joint Institute for Nuclear Research (Russia)
I. Meshkov, Joint Institute for Nuclear Research (Russia)
R. Pivin, Joint Institute for Nuclear Research (Russia)
A. Rudakov, Joint Institute for Nuclear Research (Russia)
I. Seleznev, Joint Institute for Nuclear Research (Russia)
A. Sidorin, Joint Institute for Nuclear Research (Russia)
A. Smirnov, Joint Institute for Nuclear Research (Russia)
G. Trubnikov, Joint Institute for Nuclear Research (Russia)
S. Yakovenko, Joint Institute for Nuclear Research (Russia)


Published in SPIE Proceedings Vol. 6278:
Seventh Seminar on Problems of Theoretical and Applied Electron and Ion Optics
Anatoly M. Filachev, Editor(s)

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