IL43558A - Apparatus and methods for confining high temperature plasmas - Google Patents
Apparatus and methods for confining high temperature plasmasInfo
- Publication number
- IL43558A IL43558A IL43558A IL4355873A IL43558A IL 43558 A IL43558 A IL 43558A IL 43558 A IL43558 A IL 43558A IL 4355873 A IL4355873 A IL 4355873A IL 43558 A IL43558 A IL 43558A
- Authority
- IL
- Israel
- Prior art keywords
- plasma
- magnetic field
- toroidal
- closed
- current
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 5
- 210000002381 plasma Anatomy 0.000 title 1
- 230000000694 effects Effects 0.000 claims 3
- 238000006243 chemical reaction Methods 0.000 claims 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- 230000004927 fusion Effects 0.000 claims 1
- 230000000306 recurrent effect Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 claims 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/65—Arrangements characterised by transmission systems for broadcast
- H04H20/76—Wired systems
- H04H20/82—Wired systems using signals not modulated onto a carrier
- H04H20/83—Wired systems using signals not modulated onto a carrier not sharing the network with any other service
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Plasma Technology (AREA)
- Electron Sources, Ion Sources (AREA)
Claims (12)
1. Apparatus for confining a high temperature plasma having an envelope shaped to form a toroidal hollow chamber containing a plasma comprising a selected gas at a predetermined density and at a predetermined elevated temperature, characterized by: magnetic field generating means for confining, within said chamber, said plasma 1n the shape of a smooth topological torus without cusps or edges so that the plasma does not touch the walls of said chamber, said plasma being confined b a magnetic field tangent to the surface of said plasma, said magnetic field having topological stability and Including exactly an even finite number N of closed fie d li es on the plasma surface, all additional field lines of the magnetic field on the plasma surface being each asymptotic to an adjacent pair of said closed field lines.
2. The apparatus of Claim 1 wherein said magnetic field generating means Is characterized In that said plasma has a non-convex pololdal cross sections, said magnetic field tangent to the plasma surface has a rotational transform angle Identically and persistently zero, said even finite number N of closed field lines on the toroidal surface each comprise an approximate circle lying In a plane perpendicular to the toroidal axis, and said magnetic field generating meand Induces filamentary currents n the plasma surface having toroidal components comprising exactly N/2 pairs of oppositely directed strips of filamentary currents.
3. The apparatus of claim 1 wherein said magnetic field generating means Is characterized by said even finite number N of closed field lines on the toroidal surface each comprising a closed pololdal field line lying 1n a plane containing the toroidal axis.
4. * The apparatus of claim 1 wherein said magnetic field generating means Is characterized by said even finite number N of closed field lines on the toroidal surface each comprising a closed field line helically twisted about the toroidal surface. 43558/2
5. The apparatus of Claims 1, 2, 3 or 4 wherein said magnetic field generating means is further characterized by means for generating magnetic field lines of finite length in the chamber volume contiguous to the plasma surface, none of which is recurrent, closed or degenerate.
6. The apparatus of Claims 1 or 2 wherein said magnetic field generating means further comprises: ''·:.· first current means to effect a poloidal flow of current transversely around and exteriorly of said plasma, in order to tend to displace said magnetic field lines inwardly toward the longitudinal axis of said plasma and thereby compress said plasma ebout its longitudinal axis, as well as to curve said magnetic field lines about the toroidal axis of said plasma, second current means to effect a toroidal flow of current longitudinally of said plasma arid ' exteriorly thereof adjacent the side of said toroidally-shaped plasma closest to the toroidal axis, thereby to further ' curve selected ones of said magnetic field lines at a selected region on the surface of said plasma in a direction away from said toroidal axis and toward the longitudinal axis of said plasma so that . the poloidal cross-section of said plasma is non-convex, and third current means positioned exteriorly of both said plasma and said second current means to effect toroidal flow of current longitudinally of said plasma and in a direction: '.'.''· , : , .■■ i:y- ■■ : ■ ■ : " 1 :' '· ' . ' , ■ ■ ;.··■' ■.' ■"" '.' ' ..'· ' 43558/2 '-r\. opposite to the direction of the flow of current effected "by said second current means, thereby to prevent .movement of said plasma in a direction toward the side of said chamber furthest from said toroidal axis and where the values of the currents in said first, second and third current means are selected to -produce at the surface of . said plasma a 'magnetic field having static structural stability. ■'» 7.
7. The apparatus .of Claims 1 or 2 wherein said magnetic field generating means is further characterized by means for generating in .said magnetic field precisely two closed toroidal magnetic field lines which d vide the surface of said plasma into two toroidal regions, a first -region and a second region, whereby the non-convex poloidal cross section of said plasma has two' points at which the poloidal component of the magnetic field is zero corresponding to said two closed field lines. 43658/2? β.
8. The apparatus of claim 7 wherein said means for generating a magnetic field further characterized by means for di ecting a first toroidal current on said first region of sai d plasma surface, me!ans for directing a second toroidal current on said second region o said plasma surface 1n a direction opposite to the direction of sa d first toroidal current, and means for directing a pololdal current on the entirely of said plasma surface.
9. The method of effectively confining 1n a topological toroidal vacuum chamber a high temperature plasma for a sufficiently long time period for useful control led thermo nuclear fusion reactions to take place wherein said plasma has a selected beta value and comprises a fully Ionized l ight element gas at relatively low densi ty, characterized by: confining said plasma In the shape of a smooth topological torus without cusps or edges by a magnetic field tangent to the surface of said plasma so that said plasma does not touch the walls of said chamber, wherein said magnetic field has topological stability and Includes exactly an even finite number N of closed field l ines on said plasma surface, all additional field l ines of said magnetic field on said plasma surface being each asymptotic to an adjacent pair of said closed field lines . 43558/2
10. The method of Claim 9 further characterized by applying the magnetic field within said vacuum volu;ne~""to confine said plasma in a smooth-surfaced toroidal plasma configuration having a non- convex , poloidal cross section , to form said magnetic field to have a rotational transform angle on the plasma surface identically and eri s"tently zero, said even finite number N of closed He d lines each comprising an approximate circle lying, in a p.laife perpendicular to the toroidal axis, and to produce -filamentary currents on said plasma surface having toroidal components which comprise exactly N/2 pairs of 1 oppositely directed strips of filamentary currents.
11. The method of Claim 9 further characterized by applying the magnetic field to confine said plasma, wherein said even finite . umber N of closed field lines each comprise a closed poloidal field line lying in a plane • · '."·.' '.'··· ; ·· .." ' ■ containing the toroidal axis. ^
12. -The method of Claim 9 further characterized by applying the magnetic field to confine said plasma, wherein said even. finite number N of closed field lines each comprise a closed field line helically twisted about the toroidal surface.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30078172A | 1972-10-25 | 1972-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL43558A0 IL43558A0 (en) | 1974-06-30 |
| IL43558A true IL43558A (en) | 1976-03-31 |
Family
ID=23160557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL43558A IL43558A (en) | 1972-10-25 | 1973-11-04 | Apparatus and methods for confining high temperature plasmas |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS4995097A (en) |
| AR (1) | AR200658A1 (en) |
| BE (1) | BE806419A (en) |
| BR (1) | BR7308318D0 (en) |
| CA (1) | CA1006632A (en) |
| CH (1) | CH596731A5 (en) |
| DE (1) | DE2350256A1 (en) |
| DK (1) | DK141110B (en) |
| FR (1) | FR2204938B1 (en) |
| GB (1) | GB1439391A (en) |
| IL (1) | IL43558A (en) |
| IT (1) | IT994436B (en) |
| NL (1) | NL7314707A (en) |
| SE (1) | SE388107B (en) |
| SU (1) | SU673210A3 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4023065A (en) * | 1973-10-24 | 1977-05-10 | Koloc Paul M | Method and apparatus for generating and utilizing a compound plasma configuration |
| US4277306A (en) * | 1977-12-22 | 1981-07-07 | General Atomic Company | Coil-less divertors for toroidal plasma systems |
| RU2176132C2 (en) * | 2000-01-12 | 2001-11-20 | Институт проблем лазерных и информационных технологий РАН | Technique of laser heating of plasma |
-
1973
- 1973-10-06 DE DE19732350256 patent/DE2350256A1/en not_active Ceased
- 1973-10-09 CA CA182,886A patent/CA1006632A/en not_active Expired
- 1973-10-16 GB GB4809073A patent/GB1439391A/en not_active Expired
- 1973-10-18 DK DK565373AA patent/DK141110B/en unknown
- 1973-10-22 AR AR250630A patent/AR200658A1/en active
- 1973-10-23 BE BE136984A patent/BE806419A/en unknown
- 1973-10-23 SU SU731973561A patent/SU673210A3/en active
- 1973-10-23 IT IT53285/73A patent/IT994436B/en active
- 1973-10-24 BR BR8318/73A patent/BR7308318D0/en unknown
- 1973-10-24 SE SE7314434A patent/SE388107B/en unknown
- 1973-10-24 JP JP48119025A patent/JPS4995097A/ja active Pending
- 1973-10-25 FR FR7338130A patent/FR2204938B1/fr not_active Expired
- 1973-10-25 NL NL7314707A patent/NL7314707A/xx not_active Application Discontinuation
- 1973-10-25 CH CH1508373A patent/CH596731A5/xx not_active IP Right Cessation
- 1973-11-04 IL IL43558A patent/IL43558A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH596731A5 (en) | 1978-03-15 |
| AR200658A1 (en) | 1974-11-29 |
| DE2350256A1 (en) | 1974-05-09 |
| FR2204938B1 (en) | 1979-10-12 |
| CA1006632A (en) | 1977-03-08 |
| BE806419A (en) | 1974-04-23 |
| BR7308318D0 (en) | 1974-08-22 |
| GB1439391A (en) | 1976-06-16 |
| IL43558A0 (en) | 1974-06-30 |
| NL7314707A (en) | 1974-04-29 |
| SE388107B (en) | 1976-09-20 |
| DK141110C (en) | 1980-07-28 |
| IT994436B (en) | 1975-10-20 |
| SU673210A3 (en) | 1979-07-05 |
| DK141110B (en) | 1980-01-14 |
| JPS4995097A (en) | 1974-09-10 |
| FR2204938A1 (en) | 1974-05-24 |
| AU6158073A (en) | 1975-04-24 |
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