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Title: A COST-EFFECTIVE RAPID-CYCLING SYNCHROTRON

Abstract

The present Fermilab proton Booster is an early example of a rapidly-cycling synchrotron (RCS). Build in 1960s, it features a design in which the combined-function dipole magnets serve as vacuum chambers. Such a design is quite cost-effective, and it does not have the limitations associated with the eddy currents in a metallic vacuum chamber. However, an important drawback of that design is a high impedance, as seen by a beam, because of the magnet laminations. More recent RCS designs (e.g. J-PARC) employ large and complex ceramic vacuum chambers in order to mitigate the eddycurrent effects and to shield the beam from the magnet laminations. Such a design, albeit very successful, is quite costly because it requires large-bore magnets and large-bore rf cavities. In this article, we will consider an RCS concept with a thin-wall metallic vacuum chamber as a compromise between the chamber-less Fermilab Booster design and the large-bore design with ceramic chambers.

Authors:
ORCiD logo [1]; ORCiD logo [2]
  1. Fermilab
  2. Fermmilab
Publication Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
OSTI Identifier:
1487395
Report Number(s):
FERMILAB-PUB-18-546-AD-DI
1709289
DOE Contract Number:  
AC02-07CH11359
Resource Type:
Journal Article
Journal Name:
Reviews Of Accelerator Science And Technology
Additional Journal Information:
Journal Name: Reviews Of Accelerator Science And Technology
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS

Citation Formats

Nagaitsev, Sergei, and Lebedev, Valeri. A COST-EFFECTIVE RAPID-CYCLING SYNCHROTRON. United States: N. p., 2018. Web.
Nagaitsev, Sergei, & Lebedev, Valeri. A COST-EFFECTIVE RAPID-CYCLING SYNCHROTRON. United States.
Nagaitsev, Sergei, and Lebedev, Valeri. Fri . "A COST-EFFECTIVE RAPID-CYCLING SYNCHROTRON". United States. https://www.osti.gov/servlets/purl/1487395.
@article{osti_1487395,
title = {A COST-EFFECTIVE RAPID-CYCLING SYNCHROTRON},
author = {Nagaitsev, Sergei and Lebedev, Valeri},
abstractNote = {The present Fermilab proton Booster is an early example of a rapidly-cycling synchrotron (RCS). Build in 1960s, it features a design in which the combined-function dipole magnets serve as vacuum chambers. Such a design is quite cost-effective, and it does not have the limitations associated with the eddy currents in a metallic vacuum chamber. However, an important drawback of that design is a high impedance, as seen by a beam, because of the magnet laminations. More recent RCS designs (e.g. J-PARC) employ large and complex ceramic vacuum chambers in order to mitigate the eddycurrent effects and to shield the beam from the magnet laminations. Such a design, albeit very successful, is quite costly because it requires large-bore magnets and large-bore rf cavities. In this article, we will consider an RCS concept with a thin-wall metallic vacuum chamber as a compromise between the chamber-less Fermilab Booster design and the large-bore design with ceramic chambers.},
doi = {},
journal = {Reviews Of Accelerator Science And Technology},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}

Journal Article:

Figures / Tables:

Figure 1 Figure 1: The schematic RCS site layout.

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