Simultaneous slow resonant extractions from the SPS with horizontal tune-split

Conference · Tue Oct 01 00:00:00 EDT 1985 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:6341221

Gyr, M; Kissler, K H; Pahud, J D; Peraire, S

With the upgrading of the West experimental area it became necessary to extract protons at 450 GeV/c simultaneously towards two experimental zones. However, the corresponding extraction systems are at locations which, when the normal periodicity is maintained, would not allow this procedure. During the time of extraction, the horizontal tune has therefore to be split unequally between two halves of the machine circumference such that the betatron phase difference between the electrostatic septa of the two extraction systems becomes a multiple of 2 . The separatrix then being the same at both septa entrances, the sharing ratio can easily be adjusted by changing the radial position of the circulating beam relative to the first septum with a compensated bump.

• Research Organization: CERN, Geneva
• OSTI ID: 6341221
• Report Number(s): CONF-850504-; TRN: 86-004271
• Journal Information: IEEE Trans. Nucl. Sci.; (United States), Vol. NS-32:5; Conference: Particle accelerator conference, Vancouver, Canada, 13 May 1985
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
CERN SPS SYNCHROTRON
BEAM EXTRACTION
BEAM POSITION
BETATRON OSCILLATIONS
ELECTROSTATIC SEPTA
GEV RANGE 100-1000
PHASE SHIFT
PROTON BEAMS
TUNING
ACCELERATORS
BEAM DYNAMICS
BEAMS
CYCLIC ACCELERATORS
ENERGY RANGE
GEV RANGE
NUCLEON BEAMS
OSCILLATIONS
PARTICLE BEAMS
SYNCHROTRONS
430302* - Particle Accelerators- Injection & Extraction Systems
430303 - Particle Accelerators- Experimental Facilities & Equipment