Experimental study of pulsed heating of electromagnetic cavities

Author

Pritzkau, D.P. ; Menegat, A. ; Siemann, R.H. ; Lee, T.G. ; Yu, D.U.L.

Author_Institution

Linear Accel. Center, Stanford Univ., CA, USA

Volume

3

fYear

1997

fDate

12-16 May 1997

Firstpage

3036

Abstract

An experiment to study the effects of pulsed heating in electromagnetic cavities will be performed. Pulsed heating is believed to be the limiting mechanism of high acceleration gradients at short wavelengths. A cylindrical cavity operated in the TE₀₁₁ mode at a frequency of 11.424 GHz will be used. A klystron will be used to supply a peak input power of 20 MW with a pulse length of 1.5 μs. The temperature response of the cavity will be measured by a second waveguide designed to excite a TE₀₁₂ mode in the cavity with a low-power CW signal at a frequency of 17.8 GHz. The relevant theory of pulsed heating will be discussed and the results from cold-testing the structure will be presented

Keywords

accelerator cavities; heating; 1.5 mus; 11.424 GHz; 17.8 GHz; 20 MW; TE₀₁₁ mode; TE₀₁₂ mode; cold-testing; cylindrical cavity; electromagnetic cavities; high acceleration gradients; klystron; pulsed heating; short wavelength; temperature response; EMP radiation effects; Electromagnetic heating; Magnetic materials; Optical materials; Optical surface waves; Radio frequency; Surface resistance; Temperature; Thermal conductivity; Thermal stresses;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.753100

Filename

753100