Title :
A 360 GHz, second harmonic gyroklystron for EPR
Author :
Read, Michael ; Nusinovich, Gregory ; Walter, Michael ; Kremer, Michael
Author_Institution :
Phys. Sci. Inc., Alexandria, VA, USA
Abstract :
Summary form only given. A design for a /spl sim/1 kW pulse and /spl sim/100 W CW 360 GHz gyroklystron will be presented. The gyroklystron is for use in for Electron Paramagnetic Resonance spectroscopy. Two and 3 cavity designs will be presented, The two cavity design has an output power of 750 W and a gain of 35 dB. A 40 keV beam with a velocity ratio of 1 is generated using a magnetron injection gun. Modeling with EGUN gives a spread in perpendicular velocity of 2.2%. Details of the design, including the electron gun, RF structure and output coupling system will be presented. For some EPR applications, packets of short pulses are required. To produce these, the modulating anode of the gun will be switched, and the means by which this will be done will also be discussed.
Keywords :
gyrotrons; klystrons; paramagnetic resonance; spectrometer accessories; 1 kW; 100 W; 35 dB; 360 GHz; 750 W; EGUN modelling; EPR; RF structure; electron paramagnetic resonance spectroscopy; magnetron injection gun; modulating anode; output coupling system; perpendicular velocity; second harmonic gyroklystron; short pulse packets; three cavity design; two cavity design; velocity ratio; Anodes; Electrons; Gain; Klystrons; Magnetic resonance; Paramagnetic resonance; Power generation; Power system modeling; Radio frequency; Spectroscopy;
Conference_Titel :
Plasma Science, 2000. ICOPS 2000. IEEE Conference Record - Abstracts. The 27th IEEE International Conference on
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-5982-8
DOI :
10.1109/PLASMA.2000.854999
