Title :
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
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;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.753100
