The crossed-field amplifier computational and experimental results

Abstract

S a n J o s e S t a t e U n i v e r s i t y , San J o s e , C a l i f o r n i a L . I . Y a r r i n g t o n Air F o r c e A v i o n i c s L a b . , WPAFB , Dayton , O h i o ABSTRACT s m a l l s i g n a l m e a s u r e m e n t s , 2 ) tube damage, due t o beam c y c l o i d i n g , a s i t e n t e r s the A c o m p a r i s o n o f e x p e r i m e n t a l r e s u l t s i n t e r a c t i o n s p a c e , a n d 3 ) o u t p u t power and some l a r g e s i g n a l c o m p u t e r p r o g r a m s h a s v e r s u s i n p u t p o w e r s a t u r a t i o n c h a r a c t e r i se s t a b l i s h e d a c o r r e l a t i o n w h e r e i n t h e beam t i c s . T h a t t h e beam i s n o n -B r i l l o u i n c a n i n a c r o s s e d -f i e l d a m p l i f i e r i s n o n -l a m i n a r .be t r a c e d b a c k t o t h e gridded g u n s t r u c t u r e .

Simulation of a Crossed-Field Amplifier Using a Modulated Distributed Cathode

“…Examples of these are Magnetrons [1][2][3][4][11][12][13] and Crossed-Field amplifiers (CFAs) [1][2][3][4][13][14][15][16][17][18][19]. Fast-wave devices use the cyclotron frequency for operation; a gyrotron [1][2][3][4]20] is one example of many gyro devices.…”

“…The maximum gain observed among these devices is in the 25 − 30 dB range [84,90]. Two general limits to getting high gain in these devices are (i) unwanted oscillations outside the matched band and (ii) The gain of linear injected beam devices is very sensitive to the beam injection technique [19,91]. The efficiency of the device depends largely on the cycloiding of the beam in the interaction space, which is highly dependent on beam injection.…”

“…The efficiency of the device depends largely on the cycloiding of the beam in the interaction space, which is highly dependent on beam injection. The experiments by Cooke and Döhler [19,91] showed that by improving the electron gun optics and making the beam injection "smoother," significant gains to efficiency are observed.…”

“…19 shows the new electron emission placement. The x-component of the electric field in this region points to the right, which causes a force to the left on the electrons.…”