HIGH POWER SUBMILLIMETER WAVE RADIATION SOURCES – GYROTRON FU SERIES

The Smith-Purcell radiation of a charged particle moving in a periodic structure is analysed theoretically. The considered structure consists of two planar diffraction gratings with different periods which are formed by parallel conducting wires. The analytical expression for the spectral-angular distribution of radiation is obtained. It is shown that the angular distribution of radiation can be made narrower by using two gratings instead of one, and radiation intensity can be manipulated by parallel relative shift of gratings. The obtained results are of great importance for the research and development of high power radiation sources based on volume free-electron lasers.

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Demonstration of a Ka Band Oversized Coaxial Multi Beam Relativistic Klystron Amplifier for High Power Millimeter Wave Radiation

IEEE Electron Device Letters ◽

10.1109/led.2021.3130170 ◽

2021 ◽

pp. 1-1

Author(s):

Shifeng Li ◽

Hua Huang ◽

Zhaoyun Duan ◽

B. N. Basu ◽

Zhenbang Liu ◽

...

Keyword(s):

Millimeter Wave ◽

High Power ◽

Wave Radiation ◽

Ka Band ◽

Relativistic Klystron

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A High-Power G-band Schottky Local Oscillator Chain for Submillimeter Wave Heterodyne Detection

Journal of Infrared Millimeter and Terahertz Waves ◽

10.1007/s10762-015-0151-y ◽

2015 ◽

Vol 36 (5) ◽

pp. 430-444 ◽

Cited By ~ 6

Author(s):

Zhenhua Chen ◽

Xiang Chen ◽

Wanzhao Cui ◽

Xiaojun Li ◽

Junxiang Ge

Keyword(s):

High Power ◽

Local Oscillator ◽

Submillimeter Wave ◽

Heterodyne Detection

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High power pulsed submillimeter wave sintering of zirconia ceramics

2011 International Conference on Infrared, Millimeter, and Terahertz Waves ◽

10.1109/irmmw-thz.2011.6105135 ◽

2011 ◽

Cited By ~ 5

Author(s):

S. Mitsudo ◽

K. Sako ◽

S. Tani ◽

I. N. Sudiana

Keyword(s):

High Power ◽

Submillimeter Wave ◽

Zirconia Ceramics

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Back-Melting of a Horizontal Cloudy Ice Layer with Radiative Heating

Journal of Heat Transfer ◽

10.1115/1.3450942 ◽

1979 ◽

Vol 101 (1) ◽

pp. 90-95 ◽

Cited By ~ 21

Author(s):

N. Seki ◽

M. Sugawara ◽

S. Fukusako

Keyword(s):

Radiant Energy ◽

Short Wave ◽

Melting Rate ◽

Radiative Heating ◽

Wave Radiation ◽

Band Model ◽

Air Bubbles ◽

Short Wave Radiation ◽

Radiation Sources ◽

Infrared Spectral

This paper is concerned with the melting of a horizontal ice layer sticking to a substrate by using halogen lamps, which are comparatively short wave radiation sources. This radiation in the visible and infrared spectral range may be employed to remove ice from structures subject to atmospheric icing. It is concluded that the behavior of radiation transfer in a cloudy ice layer depends a great deal on the density of the cloudy ice including air bubbles which produce the scattering of radiation. Also the phenomenon of back-melting caused by radiant energy penetrating through the ice layer is observed. Moreover, it is shown that the melting rate of an ice layer can be predicted numerically by using the band model of extinction coefficient for cloudy ice assumed in this study.

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