Cylindric electron envelope for relativistic electron cooling

Burov, A. ; Lebedev, V. ; /Fermilab

Fermi National Accelerator Laboratory

关键词: Electron Beams;    43 Particle Accelerators;    Transport Accelerators;    Shape;    Electron Cooling;   

DOI  :  10.2172/15020209
RP-ID  :  FERMILAB-TM-2303-AD
RP-ID  :  AC02-76CH03000
RP-ID  :  15020209

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来源: UNT Digital Library

【 摘 要 】

Electron cooling requires small angles between the electrons and the cooled particles. In other words, the electron beam has to be of a cylindrical shape in the cooling section. How to satisfy this requirement for a specific case of a relativistic electron beam transport for the Fermilab electron cooling project? In fact, the requirement splits into two parts: for the beam centroid and its envelope. A straight centroid motion means a good field quality and zero initial conditions; this issue is not a subject of this paper. The cylindrical envelope requires proper initial conditions of the envelope at the entrance of the cooler, it is a problem of matching. A specific complex of measurements and calculations aimed at solving this problem is described here.