mode - CERN Accelerator School
mode - CERN Accelerator School
mode - CERN Accelerator School
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RFQ Qpproperties p - 2<br />
3. The distance between peaks p of the<br />
modulation can be slightly adjusted<br />
to change the phase of the beam<br />
inside the RFQ cells, and the<br />
amplitude of the modulation can be<br />
changed to change the accelerating<br />
gradient → we can start at -90º<br />
phase p (linac) with some bunching g<br />
cells, progressively bunch the beam<br />
(adiabatic bunching channel), and only<br />
in the last cells switch on the<br />
acceleration<br />
acceleration.<br />
Longitudinal beam profile of a proton beam along the<br />
<strong>CERN</strong> RFQ2 RFQ2: ffrom a continuous ti beam b to t a bunched b h d<br />
accelerated beam in 300 cells.<br />
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