PS Continuous Transfer Staircase Kicker
Parameters
Publications:
1.
The Fast Bumper Magnets and associated Pulse Generators for 11 Turn Extraction of the
PS Beam.
D.C. Fiander
CERN/MPS/SR 72-2.
2.
A modulated Fast Bump for the CPS Continuous Transfer.
D.C. Fiander, D. Grier, K.D. Metzmacher, P. Pearce.
1977 Accelerator Conference Chicago
CERN/PS/AE/77-15.
3.
Conclusions du MD BFA9-21 du 2/07/2003
L. Sermeus
AB-Note-2003-050 MD
The purpose of the Proton Synchrotron Continuous Transfer ejection is to provide the Super Protron Synchrotron
with a continuous beam of quasi constant intensity and with a duration of five PS turns.
The unbunched PS proton beam is kicked with a combination of
Pedestal
and Staircase magnets onto an
electrostatic septum magnet, which slices the beam. The proportion of the beam sliced by the septum is ejected,
while the non-sliced proportion is kicked again to undo the initial kick before the beam hits the septum once more.
The beam performs a horizontal and screwlike betatron oscillation of 6.25 turns/PS turn.
Thus the truncated beam cross-section has effectively rotated by 90° every time it hits
the septum.
The kick waveform required resembles a Staircase. For technical purposes this kick is decomposed into a long, flat
pedestal and a staircase. By judicious choice of the level of each staircase step a quasi constant intensity is obtained.
For comments and changes send e-mail to K.D. Metzmacher
Copyright CERN -- last modified 04/07/03