DocumentCode
904741
Title
Development of Disk-and-Washer Cavity in KEK
Author
Inagaki, S. ; Higo, T. ; Takata, K. ; Nakanishi, H. ; Noguchi, S. ; Furuya, T. ; Kitagawa, K. ; Ezura, E. ; Kojima, Y. ; Takashima, T.
Author_Institution
National Laboratory for High Energy Physics Oho-machi, Tsukuba-gun, Ibaraki-ken, 305, Japan
Volume
30
Issue
4
fYear
1983
Firstpage
3572
Lastpage
3574
Abstract
The behavior of the deflecting mode of the disk and washer structure was studied experimentally and computationally. A possibility was proved that the second HEM1 passband can be moved above the accelerating frequency and that the value of R/Q can be increased by 60 % compared to that of the shunt impedance optimized DAW cavity, if one makes a compromise with 80 % of the optimized shunt impedance. The transverse coupling impedance of the second HEM1 mode at ¿ phase shift is less than 1 Mohm/m for a single cell, which is small by more than an order of magnitude compared to that of the re-entrant cavity or disk loaded cavity.
Keywords
Acceleration; Couplings; Degradation; Electromagnetic measurements; Frequency; Impedance measurement; Laboratories; Passband; Physics computing; Proposals;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.1983.4336729
Filename
4336729
Link To Document