Title :
Layout and Optics of the Proton Transfer Line for HERA
Author_Institution :
Deutsches Elektronen-Synchrotron DESY Notkestr. 85, 2000 Hamburg 52, W.-Germany
Abstract :
The optics for the 350 m long proton beam transport system from PETRA to HERA is presented. The special geometry of the beam line, involving both horizontal and vertical deflections, leads to a coupling of horizontal and vertical emittances. A simple compensation scheme using skew quadrupoles is proposed. The requirements for the magnets with respect to apertures, tolerances and flexibility (for matching various optics of PETRA and HERA) are discussed. An estimate for the emittance growth due to focussing errors in the beam line is given.
Keywords :
Apertures; Geometrical optics; Geometry; Magnets; Optical coupling; Particle beams; Positrons; Protons; Stimulated emission; Storage rings;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1985.4334277
