Patent US4602376A successfully refreshed from Google Patents.
US4602376A
Expired / Lapsed
US
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Soft X-ray source with cylindrical plasma compression
Assignee: Centre National de la Recherche Scientifique
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Filing: 1984-08-23
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Granted: 1986-07-22
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Expires: 2004-08-23
Abstract
Abstract Intense soft X-ray source comprising a means for producing a cylindrical plasma jet between a cathode and an anode, connected to a pulsed high voltage generator, wherein the means for producing the plasma jet comprises a capacitor bank connected to a charging voltage source and also to a transmission line provided with a tripping means, the assembly having a very low inductance so as to permit a rapid discharge; a sheet of solid material connected by its periphery to one of the conductors of the line and by its central part to the other conductor, so that a radial discharge can be produced when the tripping means is conductive, a plasma jet resulting from the explosion of the sheet; a means for giving the said plasma jet a cylindrical shape.
Inventors
- 👤 Henri J. Doucet
- 👤 Michel Gazaix
- 👤 Henri Lamain
- 👤 Claude Rouille
- 👤 Jean-Pierre Furtlehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:01
CPC Classifications
H; H05; H05G; H05G2/00; H05G2/001; H05G2/002; H05H; H05H1/00; H05H1/24; H05H1/52
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
139 words
An intense soft X-ray source comprising a means for producing a cylindrical plasma jet between a cathode and an anode, connected to a pulsed high voltage generator, wherein the means for producing the plasma jet comprises: a capacitor bank connected to a charging voltage source and also to a two conductor transmission line provided with a tripping means, the assembly having a very low inductance so as to permit a rapid discharge, said two conductors being coaxially arranged a sheet of solid material connected by its periphery to one of the conductors of the line and by its central part to the other conductor, so that a radial discharge can be produced when the tripping means is conductive, a plasma jet resulting from the explosion of the sheet, and means for giving the said plasma jet a cylindrical shape.
Claim 2
Dependent Claim
139 words
An intense soft X-ray source comprising a means for producing a cylindrical plasma jet between a cathode and an anode, connected to a pulsed high voltage generator, wherein the means for producing the plasma jet comprises: a capacitor bank connected to a charging voltage source and also to a two conductor transmission line provided with a tripping means, the assembly having a very low inductance so as to permit a rapid discharge, said two conductors being coaxially arranged a sheet of solid material connected by its periphery to one of the conductors of the line and by its central part to the other conductor, so that a radial discharge can be produced when the tripping means is conductive, a plasma jet resulting from the explosion of the sheet, and means for giving the said plasma jet a cylindrical shape.
Claim 3
Dependent Claim
13 words
A source according to claim 1, wherein the sheet is made from metal.
Claim 4
Dependent Claim
18 words
A source according to claim 1, wherein the sheet is composite and comprises at least two different materials.
Claim 5
Dependent Claim
19 words
A source according to claim 1, wherein the sheet is constituted by two spaced sheets defining a gas-filled volume.
Claim 6
Dependent Claim
21 words
A source according to claim 1, wherein the sheet comprises at least two sheets of different materials engaged against one another.
Claim 7
Dependent Claim
30 words
A source according to claim 1, wherein the means for giving the plasma jet a cylindrical shape comprises a ring, whose internal diameter defines the external diameter of the jet.
References Cited (Backward Citations)
US3746860A
Cited
US3835330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |