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Machine translation
1. (WO1980000898) PRE-IONISING ARRANGEMENT FOR ELECTRICAL DISCHARGE APPARATUS SUCH AS A GAS LASER
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/000898    International Application No.:    PCT/GB1979/000168
Publication Date: 01.05.1980 International Filing Date: 19.10.1979
IPC:
H01J 17/30 (2006.01), H01S 3/0971 (2006.01)
Applicants:
Inventors:
Priority Data:
7841376 20.10.1978 GB
Title (EN) PRE-IONISING ARRANGEMENT FOR ELECTRICAL DISCHARGE APPARATUS SUCH AS A GAS LASER
(FR) DISPOSITIF DE PRE-IONISATION POUR APPAREIL A DECHARGE ELECTRIQUE TEL QU"UN LASER A GAZ
Abstract: front page image
(EN)An electrical discharge apparatus, such as a gas laser, in which a glow discharge is to be produced in a gas between two electrodes (1, 2), at least one pre-ionising member (5, 6) 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 semi-conductor material. As a result, the discharge space is pre-ionised which assists initiation of the main discharge. The pre-ionisation may be due to the formation of numerous small arcs between the electrodes and the member and the resulting production of ultra-violet light.
(FR)Dans un appareil a decharge electrique, tel qu"un laser a gaz, dans lequel une decharge a lueurs et produite dans un gaz entre deux electrodes (1, 2), au moins un element de pre-ionisation (5, 6) est place pres de l"espace de decharge et s"etend entre les electrodes de sorte que le courant passe dans l"element qui est en un materiau de resistivite intermediaire tel qu"un materiau semi-conducteur cristallin. On obtient comme resultat la pre-ionisation de l"espace de decharge qui contribue a l"initiation de la decharge principale. La pre-ionisation est due a la formation de nombreux petits arcs entre les electrodes et l"element et a la production de lumiere ultraviolette qui en resulte.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)