Theoretical studies of the ultra slow extraction for the cooler synchrotron COSY-Julich

Author

Bongardt, K. ; Dinev, D. ; Martin, S. ; Meads, P.F. ; Meuth, H. ; Prasuhn, D. ; Stockhorst, H. ; Wagner, R.

Author_Institution

Inst. fuer Kernphysik, Forschungszentrum Julich, Germany

fYear

1991

fDate

6-9 May 1991

Firstpage

1767

Abstract

The cooler synchrotron COSY will accelerate protons from 40 Me up to 2.5 GeV. It is the goal of this machine to use the beam of maximum brightness for internal target experiments as well as for external experiments. The tool for the extraction of a low emittance beam is the ultra slow extraction scheme. The third-order extraction resonances at Q/sub x/=10/3, 11/3, respectively, will be driven chromatically. A spill rate of longer than 5 s will be controlled by noise generators acting in the momentum phase space. The dynamic acceptance during extraction will be controlled by 11 families of sextupoles. It is expected to extract a beam with a horizontal emittance of less than 1 pi and a momentum spread of less than 0.02%.<>

Keywords

beam handling techniques; proton accelerators; storage rings; synchrotrons; COSY; cooler synchrotron; dynamic acceptance; horizontal emittance; internal target experiments; low emittance beam; momentum spread; noise generators; protons; spill rate; third-order extraction resonances; ultra slow extraction scheme; Acceleration; Brightness; Electrostatics; Lattices; Magnets; Noise generators; Protons; Resonance; Synchrotrons; Telescopes;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE

Conference_Location

San Francisco, CA, USA

Print_ISBN

0-7803-0135-8

Type

conf

DOI

10.1109/PAC.1991.164771

Filename

164771