Abstract:
A depressed collector for recovery of spent beam energy from electromagnetic sources emitting sheet or large aspect ration annular electron beams operating aver a broad range of beam voltages and currents. The collector incorporates a trap for capturing and preventing the return of reflected and secondary electrons.
Abstract:
In a multistage collector used in a linear beam tube such as an IOT or klystron, electrode stages (1, 2 and 3) are separated by ceramic rings (5 and 6) having metallised surfaces (7 and 9) to provide distributed bypass capacitors. This eliminates or reduces leakage or any rf energy from the interior of the collector to the outside.
Abstract:
A klystron tube for amplifying signals at microwave radio frequencies utilizes an electron source for emitting electrons through a field focused by a high energy magnet in the RF section of the tube. After the electrons have passed through the active area of the tube, the electrons strike the collector which, in this case, is a multistage depressed collector. The multistages of the depressed collector are connected to high energy voltage sources of different potentials. The klystron tube with the multistage depressed collector is uniquely used here for the first time in a ground based satellite or terrestrial communications system.
Abstract:
A cathode-ray tube includes a plate having a first hole on a first surface of the plate and a second hole on a second surface of the plate. The first and second holes are coupled together to allow electron beams to pass therethrough. The first hole has a first diameter, and the second hole has a second diameter. The first diameter is different than the second diameter