Experimental results on 700 MHz multicell superconducting cavity for proton linac

Author

Visentin, B. ; Charrier, J.P. ; Roudier, D. ; Simoens, F. ; Jacques, E. ; Aspart, A. ; Gasser, Y. ; Poupeau, J.P. ; Sahuquet, P. ; Braud, D. ; Saugnac, H. ; Szott, Ph. ; Bousson, S. ; Biarrotte, J.L. ; Junquera, T. ; Blivet, S.

Author_Institution

CEA, Centre d´´Etudes Nucleaires de Saclay, Gif-sur-Yvette, France

Volume

2

fYear

2003

fDate

12-16 May 2003

Firstpage

1303

Abstract

The first five-cell niobium superconducting cavity (700 MHz, β=0.65) has been successfully tested in the horizontal cryostat CryHoLab. Technological choices like equipment with stainless steel helium vessel and flanges appeared to be viable for the future. Preceding this test, several operations have been performed: field flatness adjustment, chemical etching, heat treatment and RF measurements in a vertical cryostat. Good performances for a multicell cavity were obtained. However, field emission and not yet elucidated phenomenon limit the accelerating field around 16 MV/m.

Keywords

accelerator RF systems; accelerator cavities; beam handling techniques; linear accelerators; niobium; particle beam diagnostics; particle beam dynamics; proton accelerators; superconducting cavity resonators; 700 MHz; RF measurements; chemical etching; field flatness adjustment; five-cell niobium superconducting cavity; heat treatment; multicell superconducting cavity; proton linac; stainless steel helium vessel; vertical cryostat; Chemical technology; Etching; Flanges; Helium; Linear particle accelerator; Niobium; Performance evaluation; Protons; Steel; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1289686

Filename

1289686