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Bunching for shorter damping rings for the ILC

Conference ·
OSTI ID:879011
A variant rearrangement of the bunch trains for the ILC that enables much shorter damping rings is presented. In a particular example the {approx}2820 bunches are regrouped into {approx}550 subtrains of five adjacent bunches. These subtrains are extracted from the damping rings at {approx}1.8 {micro}s intervals, obtaining the 1ms macrobunch length of the baseline TESLA collider scenario. If the baseline damping rf frequency is 325 MHz and the kicker rise and fall times are {approx}20 ns, a ring circumference of {approx}5.8km is required. Variations of the scheme could easily reduce the circumference to {approx}4km, and faster kickers could reduce it even further.
Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-76CH03000
OSTI ID:
879011
Report Number(s):
FERMILAB-CONF-05-136-AD
Country of Publication:
United States
Language:
English

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