Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Kevin Felch"'
Publikováno v:
2022 IEEE 2nd Ukrainian Microwave Week (UkrMW).
Publikováno v:
2020 IEEE International Conference on Plasma Science (ICOPS).
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
CPI is currently involved in the design and development of gyrotron oscillators and amplifiers for a variety of applications. A family of low-power continuous wave (cw) gyrotrons for commercial dynamic nuclear polarization (DNP) enhanced nuclear magn
Autor:
Edl Schamiloglu, John Lohr, Jonathan Coopersmith, Julie Mikula, Geoffrey Cushman, Sergio Carbajo, Kevin Felch, Alan Rhodes
Publikováno v:
ASCEND 2020.
Secondary Electron Simulations of a Gyrotron Collector with Magnetic Sweeping and Voltage Depression
Publikováno v:
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC).
Megawatt-class gyrotrons are designed to distribute the residual electron beam energy across a large collecting surface, to keep power densities low enough to be dissipated without threatening long-term vacuum integrity. Because the incident beam is
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
In megawatt-class gyrotrons, the residual energy of the electron beam must be dissipated in the collector without compromising the vacuum integrity of the device, necessitating the use of various methods for lowering the peak power density to accepta
Publikováno v:
2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Dynamic nuclear polarization (DNP) enhanced nuclear magnetic resonance (NMR) spectroscopy is a popular and growing application for high-frequency, continuous wave (cw) gyrotrons that produce powers in the range of tens to hundreds of watts at millime
Autor:
T.S. Chu, H. Huey, Howard Roberts Jory, Jeff Neilson, Kevin Felch, R. Schumacher, R.J. Vernon, J.A. Lorbeck
Publikováno v:
18th International Conference on Infrared and Millimeter Waves.
Varian is carrying out the development of high-power, CW gyrotrons at frequencies ranging from 100--140 GHz. Recent experiments, carried out at a frequency of 110 GHz, resulted in the generation of output powers of 500 kW for 2.5-second pulses and 1
Publikováno v:
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
Gyrotron tests were recently carried out on CPI gyrotrons at frequencies of 117.5 GHz and 140 GHz. At 117.5 GHz, output power levels of 1.67 MW were obtained under short-pulse conditions and long-pulse tests with pulse durations of 1–10 s have been
Publikováno v:
2017 IEEE International Conference on Plasma Science (ICOPS).
A dual-frequency gyrotron allowing operation at either 104 GHz or 140 GHz has been developed for use in plasma heating experiments at the W7-X stellarator at IPP Greifswald. The gyrotron has been fabricated, tested, and shipped to the installation si