3 research outputs found
Electron beam plasma diode with charged particle background
The effect of an immovable charged particle background on the stationary states of a diode with the electron
beam is studied. An addition of uniform positive charged particles results in an increase in the space-charge limit of
the electron current as well as in the new branches of equilibria arising. On the other hand, extra negative charged
particles result in a strong decrease in current cut-off limit, the cut-off being the total one. This effect can be used to
perform the fast switches.ΠΠΈΠ²ΡΠ°ΡΡΡΡΡ Π²ΠΏΠ»ΠΈΠ² Π΅ΡΠ΅ΠΊΡΡ ΠΎΡΠΎΡΠ΅Π½Π½Ρ Π½Π΅ΡΡΡ
ΠΎΠΌΠΈΠΌΠΈ Π·Π°ΡΡΠ΄ΠΆΠ΅Π½ΠΈΠΌΠΈ ΡΠ°ΡΡΠΈΠ½ΠΊΠ°ΠΌΠΈ Π½Π° ΡΡΠ°ΡΡΠΎΠ½Π°ΡΠ½Ρ ΡΡΠ°Π½ΠΈ Π΄ΡΠΎΠ΄Π° Π·
Π΅Π»Π΅ΠΊΡΡΠΎΠ½Π½ΠΈΠΌ ΠΏΡΡΠΊΠΎΠΌ. ΠΠΎΠΏΠΎΠ²Π½Π΅Π½Π½Ρ ΠΎΠ΄Π½ΠΎΡΡΠ΄Π½ΠΈΡ
ΠΏΠΎΠ·ΠΈΡΠΈΠ²Π½ΠΈΡ
Π·Π°ΡΡΠ΄ΠΆΠ΅Π½ΠΈΡ
ΡΠ°ΡΡΠΈΠ½ΠΎΠΊ ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡΡ Π΄ΠΎ Π·Π±ΡΠ»ΡΡΠ΅Π½Π½Ρ
Π³ΡΠ°Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΠΌΠ΅ΠΆΠ΅Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΡΠΎΡΠΎΠ²ΠΈΠΌ Π·Π°ΡΡΠ΄ΠΎΠΌ ΡΡΡΡΠΌΡ Π΅Π»Π΅ΠΊΡΡΠΎΠ½ΡΠ², Π° ΡΠ°ΠΊΠΎΠΆ Π΄ΠΎ Π²ΠΈΠ½ΠΈΠΊΠ½Π΅Π½Π½Ρ Π½ΠΎΠ²ΠΈΡ
ΠΎΠ±Π»Π°ΡΡΠ΅ΠΉ
ΡΡΠ²Π½ΠΎΠ²Π°Π³ΠΈ. Π ΡΠ½ΡΠΎΠ³ΠΎ Π±ΠΎΠΊΡ, Π½Π°Π΄Π»ΠΈΡΠΎΠΊ Π½Π΅Π³Π°ΡΠΈΠ²Π½ΠΈΡ
Π·Π°ΡΡΠ΄ΠΆΠ΅Π½ΠΈΡ
ΡΠ°ΡΡΠΈΠ½ΠΎΠΊ ΠΏΡΠΈΠ·Π²ΠΎΠ΄ΠΈΡΡ Π΄ΠΎ ΡΠΈΠ»ΡΠ½ΠΎΠ³ΠΎ Π·ΠΌΠ΅Π½ΡΠ΅Π½Π½Ρ
Π³ΡΠ°Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΠΌΡ, Π° ΡΠ°ΠΊΠΎΠΆ Π·Π°Π³Π°Π»ΡΠ½ΠΎΠ³ΠΎ ΡΡΡΡΠΌΡ. Π¦Π΅ΠΉ Π΅ΡΠ΅ΠΊΡ ΠΌΠΎΠΆΠ½Π° Π·Π°ΡΡΠΎΡΡΠ²Π°ΡΠΈ Π΄Π»Ρ ΡΡΠ²ΠΎΡΠ΅Π½Π½Ρ ΡΠ²ΠΈΠ΄ΠΊΠΈΡ
ΠΏΠ΅ΡΠ΅ΠΌΠΈΠΊΠ°ΡΡΠ².ΠΠ·ΡΡΠ°Π΅ΡΡΡ Π²Π»ΠΈΡΠ½ΠΈΠ΅ ΡΡΡΠ΅ΠΊΡΠ° ΠΎΠΊΡΡΠΆΠ΅Π½ΠΈΡ Π½Π΅ΠΏΠΎΠ΄Π²ΠΈΠΆΠ½ΡΠΌΠΈ Π·Π°ΡΡΠΆΠ΅Π½Π½ΡΠΌΠΈ ΡΠ°ΡΡΠΈΡΠ°ΠΌΠΈ Π½Π° ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ½ΡΠ΅
ΡΠΎΡΡΠΎΡΠ½ΠΈΡ Π΄ΠΈΠΎΠ΄Π° Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΡΠΌ ΠΏΡΡΠΊΠΎΠΌ. ΠΠΎΠΏΠΎΠ»Π½Π΅Π½ΠΈΠ΅ ΠΎΠ΄Π½ΠΎΡΠΎΠ΄Π½ΡΡ
ΠΏΠΎΠ»ΠΎΠΆΠΈΡΠ΅Π»ΡΠ½ΡΡ
Π·Π°ΡΡΠΆΠ΅Π½Π½ΡΡ
ΡΠ°ΡΡΠΈΡ
ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠ²Π΅Π»ΠΈΡΠ΅Π½ΠΈΡ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΎΠ³ΡΠ°Π½ΠΈΡΠ΅Π½Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΡΡΠ°Π½ΡΡΠ²Π΅Π½Π½ΡΠΌ Π·Π°ΡΡΠ΄ΠΎΠΌ ΡΠΎΠΊΠ° ΡΠ»Π΅ΠΊΡΡΠΎΠ½ΠΎΠ², Π° ΡΠ°ΠΊΠΆΠ΅ ΠΊ
Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΡ Π½ΠΎΠ²ΡΡ
ΠΎΠ±Π»Π°ΡΡΠ΅ΠΉ ΡΠ°Π²Π½ΠΎΠ²Π΅ΡΠΈΡ. Π‘ Π΄ΡΡΠ³ΠΎΠΉ ΡΡΠΎΡΠΎΠ½Ρ, ΠΈΠ·Π±ΡΡΠΎΠΊ ΠΎΡΡΠΈΡΠ°ΡΠ΅Π»ΡΠ½ΠΎ Π·Π°ΡΡΠΆΠ΅Π½Π½ΡΡ
ΡΠ°ΡΡΠΈΡ
ΠΏΡΠΈΠ²ΠΎΠ΄ΠΈΡ ΠΊ ΡΠΈΠ»ΡΠ½ΠΎΠΌΡ ΡΠΌΠ΅Π½ΡΡΠ΅Π½ΠΈΡ ΠΏΡΠ΅Π΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠΎΠΊΠ°, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΎΠ±ΡΠ΅Π³ΠΎ ΡΠΎΠΊΠ°. ΠΡΠΎΡ ΡΡΡΠ΅ΠΊΡ ΠΌΠΎΠΆΠ½ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΡ
Π΄Π»Ρ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ Π±ΡΡΡΡΡΡ
ΠΏΠ΅ΡΠ΅ΠΊΠ»ΡΡΠ°ΡΠ΅Π»Π΅ΠΉ
Some properties of nonlinear oscillations in a diode in the space chargeβlimited current regime
Both the initial and late non-linear stages of the oscillation process in a beam vacuum diode in the space-charge-limited current regime are numerically investigated. Two different numerical methods are applied: Birdsall's code (B-code) and Ender-Kuznetsov code (EK-code). The capabilities of both codes are compared. The high accuracy of the EK-code gives an opportunity to build dispersion branches of instability. The domain of the parameter values, when simultaneously several stable dynamical states (limit cycles) exist, is found. A sharp decrease in the amplitude of oscillations is revealed already under a comparatively small (about 2.5%) spread in velocities of the electron beam
OPTICAL INVESTIGATIONS OF THE SPONTANEOUS EXTINCTION OF THE HIGH-CURRENT KNUDSEN ARC DISCHARGE IN Cs-Ba GAS MIXTURE
The investigations of the spontaneous arc extinction in a switching Cs-Ba triode with a fine-mesh grid, operating in the collisionless mode, have been carried out. The use of Cs-Ba mixture, where cesium is a plasma-forming component, allowed to obtain emission currents from the cathode up go 100 A/cm2 in Cs-pressure range 10-3 - 10-2 Torr and, thus, easily attain the limits of gas current-conduction capacity