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Title: Implications of a 20-Hz Booster cycle-rate for Slip-stacking

We examine the potential impacts to slip-stacking from a change of the Booster cycle-rate from 15- to 20-Hz. We find that changing the Booster cycle-rate to 20-Hz would greatly increase the slip-stacking bucket area, while potentially requiring greater usage of the Recycler momentum aperture and additional power dissipation in the RF cavities. In particular, the losses from RF interference can be reduced by a factor of 4-10 (depending on Booster beam longitudinal parameters). We discuss the aspect ratio and beam emittance requirements for efficient slip-stacking in both cycle-rate cases. Using a different injection scheme can eliminate the need for greater momentum aperture in the Recycler.
Authors:
 [1] ;  [1]
  1. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Publication Date:
OSTI Identifier:
1296598
Report Number(s):
FERMILAB-TM--2587-APC; arXiv:1406.6743
1303257; TRN: US1601765
DOE Contract Number:
AC02-07CH11359
Resource Type:
Technical Report
Research Org:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; HZ RANGE; PARTICLE BOOSTERS; MODIFICATIONS; ASPECT RATIO; BEAM INJECTION; BEAM EMITTANCE; CAVITY RESONATORS; INTERFERENCE; POWER LOSSES; RADIOWAVE RADIATION; FERMILAB TEVATRON; BEAM DYNAMICS