WebA short 11.4 GHz standing wave accelerating structure was conditioned to an accelerating gradient of 250 MV/m at 45 K with 108 rf pulses. At gradients greater than 150 MV/m I observed a degradation in the intrinsic quality factor of the cavity, Q0. I developed a model for the change in Q0 using measured field emission currents and rf … WebWe present single-cell accelerating structures designed for high-gradient testing at 110 GHz. The purpose of this work is to study the basic physics of ultrahigh vacuum RF breakdown in high-gradient RF accelerators. The accelerat-ing structures are -mode standing-wave cavities fed with a TM 01 circular waveguide. The structures are …
Design, fabrication, and cold test of an S-band high-gradient ...
Web4 de mar. de 2016 · Accelerating gradients in excess of 100 MV/m, at very low breakdown rates, have been successfully achieved in numerous prototype CLIC accelerating … WebAccelerating gradients in excess of 100 MV=m, at very low breakdown rates, have been successfully achieved in numerous prototype CLIC accelerating structures. The conditioning and operational histories of several structures, tested at KEK and CERN, … early pregnancy discharge types
Sergey Kutsaev - RF Group Leader - RadiaBeam …
Web10 de nov. de 2024 · Previous high-power tests of X-band structure prototypes show that a gradient of 120 MV/m could be achieved for a 200 ns pulse length. Based on the law requiring that E30t5 =constant, this 10-ns-structure design should be able to reach a gradient of 200 MV/m. WebDownload High Gradient Accelerating Structure PDF full book. Access full book title High Gradient Accelerating Structure by W Gai. Download full books in PDF and EPUB … Web19 de abr. de 2024 · The accelerating structure was manufactured for SACLA. High-power rf conditioning was conducted to investigate its performance. Owing to the conditioning, the acceleration gradient reached a value of more than 50.1 MV/m. The structure was operated without any serious issues at a repetition rate of 120 pps. early pregnancy discharge pics