DocumentCode
2112435
Title
Isochronous 180 degrees turns for the SLC positron system
Author
Helm, R.H. ; Clendenin, J.E. ; Ecklund, S.D. ; Kulikov, A.V. ; Pitthan, R.
Author_Institution
SLAC, Stanford Univ., CA, USA
fYear
1991
fDate
6-9 May 1991
Firstpage
500
Abstract
The design of the compact, achromatic, second-order isochronous 180 degrees turn, for the SLC positron transport system is described. Design criteria require an energy range of 200+or-20 MeV, energy acceptance of +or-5%, transverse admittance of 25 pi mm-mr, and minimal lengthening of the 3 to 4 mm (rms) positron bunch. Optics specifications and theoretical performance are presented and compared to experimental results based on streak camera measurements of bunch length immediately after the first isochronous turn (200 MeV) and positron beam energy spread after S-band acceleration to 1.15 GeV.<>
Keywords
beam handling equipment; electron accelerators; linear accelerators; S-band acceleration; SLC positron transport system; positron bunch; second-order isochronous 180 degrees turn; streak camera measurements; Acceleration; Damping; Instruments; Lattices; Magnetic variables measurement; Magnets; Monitoring; Optical design; Positrons; Strips;
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.1991.164347
Filename
164347
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