Abstract:
An arrangement for generating modulated atomic resonance radiation includes a rare-gas filled discharge vessel provided with a window passing the generated resonance radiation, two electrodes between which a positive column discharge is maintained during operation of the arrangement and at least one hollow sputtering electrode which includes the element whose resonance radiation is desired. The arrangement includes means for applying a first pulsatory voltage to the sputtering electrode and furthermore means for applying a second pulsatory voltage to the electrodes for the positive column discharge, in which the pulse repetition frequency f for both pulsatory voltages is equal and has a value of between 10 and 104 Hz. The product of pulses repetition frequency f and pulse duration T1 of the first pulsatory voltage has a value of between 0.5 and 10 4 and the second pulsatory voltage has a delay time Tau relative to the first pulsatory voltage in which 0
Abstract:
A gas-discharge picture-display panel comprising a plurality of gas-discharge tubes. The gas-discharge tubes are closed on one side by a window. An electrode is arranged at each end of each gas-discharge tube. The length of the gas-discharge tubes is at least twice the dimension normal to the directions of length and the wall of the tube is coated with a phosphor material. A positive column is formed in the gas-discharge tubes and the ultra-violet radiation produced thereby causes the phosphor to luminesce. A device which reduces the ignition voltage of the positive column is connected in series with the gas-discharge tubes. The device produces either a glow discharge or a plasma to reduce the ignition voltage.
Abstract:
Gas discharge display device of a cross-bar type which comprises a cathode system, an auxiliary anode system and an anode system and in which in order to permit the use of low-dissipation control circuits the electrodes of the auxiliary anode system are at right angles to those of the anode system.