The LHC superconducting cavities

Author

Boussard, D. ; Chiaveri, E. ; Haebel, E. ; Kindermann, H.P. ; Losito, R. ; Marque, S. ; Rödel, V. ; Stirbet, M.

Author_Institution

CERN, Geneva, Switzerland

Volume

2

fYear

1999

fDate

1999

Firstpage

946

Abstract

The LHC RF system, which must handle high intensity (0.5 A d.c.) beams, makes use of superconducting single-cell cavities, best suited to minimizing the effects of periodic transient beam loading. There will be eight cavities per beam, each capable of delivering 2 MV (5 MV/m accelerating field) at 400 MHz. The cavities themselves are now being manufactured by industry, using niobium-on-copper technology which gives full satisfaction at LEP. A cavity unit includes a helium tank (4.5 K operating temperature) built around a cavity cell, RF and HOM couplers and a mechanical tuner, all housed in a modular cryostat. Four-unit modules are ultimately foreseen for the LHC (two per beam), while at present a prototype version with two complete units is being extensively tested. In addition to a detailed description of the cavity and its ancillary equipment, the first test results of the prototype are reported

Keywords

accelerator cavities; colliding beam accelerators; proton accelerators; storage rings; superconducting cavity resonators; synchrotrons; 4.5 K; 400 MHz; HOM couplers; LHC RF system; LHC superconducting cavities; Nb-Cu; mechanical tuner; modular cryostat; niobium-on-copper technology; periodic transient beam loading; superconducting single-cell cavities; Acceleration; Couplers; Helium; Large Hadron Collider; Manufacturing industries; Particle beams; Prototypes; Radio frequency; Temperature; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1999. Proceedings of the 1999

Conference_Location

New York, NY

Print_ISBN

0-7803-5573-3

Type

conf

DOI

10.1109/PAC.1999.795409

Filename

795409