HOM (higher-order mode) damper tests of the storage ring single-cell cavity with a 20-MeV e− beam for advanced photon source

1994 ◽  
Author(s):  
J. J. Song ◽  
S. O. Brauer ◽  
R. T. Daly ◽  
Y. W. Kang ◽  
R. L. Kustom ◽  
...  
Keyword(s):  
Single Cell ◽  
Storage Ring ◽  
Higher Order ◽  
Order Mode ◽  
Photon Source ◽  
Higher Order Mode ◽  
Cell Cavity

Installation of new damped cavities at the Photon Factory storage ring

1998 ◽  
Vol 5 (3) ◽  
pp. 369-371 ◽  
Author(s):  
Masaaki Izawa ◽  
Tadashi Koseki ◽  
Shyogo Sakanaka ◽  
Takeshi Takahashi ◽  
Klaus Hass ◽  
...  
Keyword(s):  
Single Cell ◽  
Storage Ring ◽  
High Power ◽  
Simple Structure ◽  
Power Input ◽  
Higher Order ◽  
Microwave Absorber ◽  
Photon Factory ◽  
Higher Order Modes ◽  
Cell Cavity

New damped cavities have been installed in the Photon Factory (PF) storage ring and successfully operated in the last scheduled user run of 1996. The new damped cavity is a simple single-cell cavity with somewhat large beam-duct holes. The part of the beam duct that is attached to the cavity is made of SiC, which works as a microwave absorber and damps the higher-order modes excited in the cavity. Because of its simple structure, the operation of the cavity is very stable and also a high power input of more than 150 kW is possible. No coupled-bunch instabilities due to the new cavity were observed during operation.

Perforated Dielectric Resonator Antenna Operating on Higher Order Mode

2018 ◽  
Author(s):  
Irfan Ali ◽  
Mohd Haizal Jamaluddin ◽  
Muhammad Ramlee Kamarudin ◽  
Abinash Gaya ◽  
S Raghuraman ◽  
...  
Keyword(s):  
Dielectric Resonator ◽  
Higher Order ◽  
Dielectric Resonator Antenna ◽  
Order Mode ◽  
Higher Order Mode
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