Details of transit-time tubes of the types covered by group H01J25/00

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J23/00Details of transit-time tubes of the types covered by group H01J25/00

H01J23/005Cooling methods or arrangements H01J23/02Electrodes Magnetic control means Screens H01J23/027Collectors H01J23/0275Multistage collectors H01J23/033Collector cooling devices H01J23/04Cathodes H01J23/05having a cylindrical emissive surface H01J23/06Electron or ion guns H01J23/065producing a solid cylindrical beam H01J23/07producing a hollow cylindrical beam H01J23/075Magnetron injection guns H01J23/08Focusing arrangements H01J23/083Electrostatic focusing arrangements H01J23/087Magnetic focusing arrangements H01J23/0873with at least one axial-field reversal along the interaction space H01J23/0876with arrangements improving the linearity and homogeniety of the axial field H01J23/09Electric system for directing or deflecting the discharge along a desired path H01J23/10Magnet systems for directing or deflecting the discharge along a desired path H01J23/11Means for reducing noise H01J23/12Vessels Containers H01J23/14Leading-in arrangements Seals therefor H01J23/15Means for preventing wave energy leakage structurally associated with tube leading-in arrangements H01J23/16Circuit elements, having distributed capacitance and inductance, structurally associated with the tube and interacting with the discharge H01J23/165Manufacturing processes or apparatus therefore H01J23/18Resonators H01J23/20Cavity resonators Adjustment or tuning thereof H01J23/207Tuning of single resonator H01J23/213Simultaneous tuning of more than one resonator H01J23/22Connections between resonators H01J23/24Slow-wave structures H01J23/26Helical slow-wave structures Adjustment therefor H01J23/27Helix-derived slow-wave structures H01J23/28Interdigital slow-wave structures Adjustment therefor H01J23/30Damping arrangements associated with slow-wave structures H01J23/34Circuit arrangements not adapted to a particular application of the tube and not otherwise provided for H01J23/36Coupling devices having distributed capacitance and inductance, structurally associated with the tube, for introducing or removing wave energy H01J23/38to or from the discharge H01J23/40to or from the interaction circuit H01J23/42the interaction circuit being a helix or a helix-derived slow-wave structure H01J23/44Rod-type coupling devices H01J23/46Loop coupling devices H01J23/48for linking interaction circuit with coaxial lines Devices of the coupled helices type H01J23/50the interaction circuit being a helix or derived from a helix H01J23/52the coupled helices being disposed coaxially around one another H01J23/54Filtering devices preventing unwanted frequencies or modes to be coupled to, or out of, the interaction circuit Prevention of high frequency leakage in the environment