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Title: GAS DISCHARGE DEVICES

Abstract

The construction of gas discharge devices where the object is to provide a gas discharge device having a high dark current and stabilized striking voltage is described. The inventors have discovered that the introduction of tritium gas into a discharge device with a subsequent electrical discharge in the device will deposit tritium on the inside of the chamber. The tritium acts to emit beta rays amd is an effective and non-hazardous way of improving the abovementioned discharge tube characteristics

Inventors:
;
Publication Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4312361
Patent Number(s):
US 2804573
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-12-004626
NSA Number:
NSA-12-004626
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-58
Country of Publication:
United States
Language:
English
Subject:
PATENTS; BETA PARTICLES; CURRENTS; ELECTRIC DISCHARGES; ELECTRIC POTENTIAL; GASES; PATENT; STABILITY; TRITIUM

Citation Formats

Arrol, W.J., and Jefferson, S. GAS DISCHARGE DEVICES. United States: N. p., 1957. Web.
Arrol, W.J., & Jefferson, S. GAS DISCHARGE DEVICES. United States.
Arrol, W.J., and Jefferson, S. Tue . "GAS DISCHARGE DEVICES". United States. doi:.
@article{osti_4312361,
title = {GAS DISCHARGE DEVICES},
author = {Arrol, W.J. and Jefferson, S.},
abstractNote = {The construction of gas discharge devices where the object is to provide a gas discharge device having a high dark current and stabilized striking voltage is described. The inventors have discovered that the introduction of tritium gas into a discharge device with a subsequent electrical discharge in the device will deposit tritium on the inside of the chamber. The tritium acts to emit beta rays amd is an effective and non-hazardous way of improving the abovementioned discharge tube characteristics},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Aug 27 00:00:00 EDT 1957},
month = {Tue Aug 27 00:00:00 EDT 1957}
}
  • An apparatus utilized in introducing tritium gas into envelope of a gas discharge device for the purpose f maintaining the discharge path in ionized condition is described. ln addition to the cathode and anode, the ischarge device contains a zirconium or tantalum ilament arranged for external excitation and a metallic seed containing tritium, and also arranged to have a current passed through it. Initially, the zirconium or tantalum filament is vaporized to deposit its material adjacent the main discharge region. Then the tritium gas is released and, due to its affinity for the first released material, it deposits in themore » region of the main discharge where it is most effective in maintaining the discharge path in an ionized condition.« less
  • An electrode structure for a vacuum vessel-contained RF laser having an elongated laser cavity defined at least in part by a dielectric block within the vacuum vessel is described comprising: conductive means adjacent the laser cavity and extending along the elongation direction of the laser cavity for selectively generating an electric field within the laser cavity; and a dielectric structure entirely encapsulating the conductive means in conjunction with the dielectric block for controlling the electric field within the vacuum vessel but outside the laser cavity.
  • A magnetic field, such as produced by a surrounding coil, lowers the breakdown voltage of a gas discharge device in series with a spark plug so that the ignition voltage with preferentially go to that spark plug rather than to others in series with gas discharge devices having no magnetic field. The switching of the field-producing coils of the gas discharge devices in accordance with the firing cycle of an engine may be produced by a transistor switching circuit excited by a simple rotary electric timing device that also times the spark pulses. A gas discharge device for this systemmore » is shown having an elongated cup-shaped anode and rodlike cathode, which can also be made to serve as the sealing tube, centered within the anode. Gas discharge devices for this system are shown in U.S. Pat. No. 3,951,144 to the same assignee.« less
  • In electrical discharge apparatus, such as a gas laser, in which a glow discharge is to be produced in a gas between two electrodes, at least one pre-ionizing member is placed near the discharge space and extending between the electrodes so that current flows in the member which is made of intermediate resistivity material such as crystalline semiconductor material. As a result, the discharge space is pre-ionized which assists initiation of the main discharge. The pre-ionization may be due to the formation of numerous small arcs between the electrodes and the member and the resulting production of ultra-violet light.