Automodulation instability in gyrotrons operating at the second cyclotron harmonic

2021 ◽  
Vol 28 (4) ◽  
pp. 043303
Author(s):  
A. P. Fokin ◽  
V. L. Bakunin ◽  
M. Yu. Glyavin ◽  
G. S. Nusinovich
Keyword(s):  
Cyclotron Harmonic

FREQUENCY VARIATION IN IONOSPHERIC CYCLOTRON HARMONIC SERIES OBTAINED BY THE ALOUETTE I SATELLITE

1966 ◽  
Vol 44 (5) ◽  
pp. 987-994 ◽  
Author(s):  
R. E. Barrington ◽  
Luise Herzberg
Keyword(s):  
Magnetic Field ◽  
Cyclotron Frequency ◽  
Harmonic Series ◽  
Frequency Variation ◽  
Theoretical Studies ◽  
Experimental Accuracy ◽  
Laboratory Results ◽  
Cyclotron Harmonics ◽  
Cyclotron Harmonic ◽  
Recent Laboratory

Ionograms produced by the Alouette I topside sounder frequently show well-developed series of cyclotron harmonics. Their frequencies have been determined from A (amplitude) scans with an accuracy of ~0.02 Mc/s for the sweep range of 1 to 6 Mc/s. In all cases examined, the frequencies of all of the members of the harmonic series are, within the experimental accuracy, integral multiples of the cyclotron frequency derived from the best present estimates of the earth's magnetic field strength at the satellite height. This result is discussed in the light of recent laboratory results and theoretical studies.

High‐frequency, step tunable, cyclotron harmonic gyrotron

1991 ◽  
Vol 3 (7) ◽  
pp. 1766-1772 ◽  
Author(s):  
Toshitaka Idehara ◽  
Toshiaki Tatsukawa ◽  
Hidehiko Tanabe ◽  
Satoru Matsumoto ◽  
Kohji Kunieda ◽  
...  
Keyword(s):  
High Frequency ◽  
Harmonic Gyrotron ◽  
Cyclotron Harmonic

Expansions of the mildly relativistic dispersion function for nearly perpendicular electron cyclotron ray tracing

1999 ◽  
Vol 61 (1) ◽  
pp. 121-128 ◽  
Author(s):  
I. P. SHKAROFSKY
Keyword(s):  
Ray Tracing ◽  
Computer Programs ◽  
Higher Order ◽  
Electron Cyclotron ◽  
Dispersion Function ◽  
Relativistic Dispersion ◽  
Plasma Dispersion ◽  
Derivatives Of ◽  
Cyclotron Harmonic ◽  
Experienced Difficulty

To trace rays very close to the nth electron cyclotron harmonic, we need the mildly relativistic plasma dispersion function and its higher-order derivatives. Expressions for these functions have been obtained as an expansion for nearly perpendicular propagation in a region where computer programs have previously experienced difficulty in accuracy, namely when the magnitude of (c/vt)2 (ω−nωc)/ω is between 1 and 10. In this region, the large-argument expansions are not yet valid, but partial cancellations of terms occur. The expansion is expressed as a sum over derivatives of the ordinary dispersion function Z. New expressions are derived to relate higher-order derivatives of Z to Z itself in this region of concern in terms of a finite series.

Beam-driven ion cyclotron harmonic resonances in the terrestrial foreshock

1985 ◽  
Vol 90 (A2) ◽  
pp. 1429 ◽  
Author(s):  
Charles W. Smith ◽  
Melvyn L. Goldstein ◽  
S. Peter Gary ◽  
C. T. Russell
Keyword(s):  
Ion Cyclotron ◽  
Cyclotron Harmonic

Method of Providing the High Cyclotron Harmonic Operation Selectivity in a Gyrotron With a Spatially Developed Operating Mode

2017 ◽  
Vol 64 (9) ◽  
pp. 3893-3897 ◽  
Author(s):  
Ilya V. Bandurkin ◽  
Mikhail Yu Glyavin ◽  
Sergey V. Kuzikov ◽  
Petr B. Makhalov ◽  
Ivan V. Osharin ◽  
...  
Keyword(s):  
Operating Mode ◽  
Harmonic Operation ◽  
Cyclotron Harmonic

scholarly journals Excitation of electron cyclotron harmonic waves in the inner Saturn magnetosphere within local plasma injections

2010 ◽  
Vol 115 (A12) ◽  
pp. n/a-n/a ◽  
Author(s):  
X. Tao ◽  
R. M. Thorne ◽  
R. B. Horne ◽  
S. Grimald ◽  
C. S. Arridge ◽  
...  
Keyword(s):  
Electron Cyclotron ◽  
Harmonic Waves ◽  
Cyclotron Harmonic

Instability near Electron Cyclotron Harmonic Frequencies in Beam-Plasma System

1969 ◽  
Vol 27 (1) ◽  
pp. 187-197 ◽  
Author(s):  
Toshitaka Idehara ◽  
Kunizo Ohkubo ◽  
Shigetoshi Tanaka
Keyword(s):  
Electron Cyclotron ◽  
Plasma System ◽  
Harmonic Frequencies ◽  
Beam Plasma ◽  
Cyclotron Harmonic
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