CN110648769A - First wall structure for strong field side of Tokamak device - Google Patents
First wall structure for strong field side of Tokamak device Download PDFInfo
- Publication number
- CN110648769A CN110648769A CN201810675853.3A CN201810675853A CN110648769A CN 110648769 A CN110648769 A CN 110648769A CN 201810675853 A CN201810675853 A CN 201810675853A CN 110648769 A CN110648769 A CN 110648769A
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- China
- Prior art keywords
- field side
- wall
- graphite block
- vacuum chamber
- ring support
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 67
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 67
- 239000010439 graphite Substances 0.000 claims abstract description 67
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000003825 pressing Methods 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000010949 copper Substances 0.000 claims abstract description 12
- 239000011889 copper foil Substances 0.000 claims abstract description 12
- 238000012546 transfer Methods 0.000 claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21B—FUSION REACTORS
- G21B1/00—Thermonuclear fusion reactors
- G21B1/11—Details
- G21B1/13—First wall; Blanket; Divertor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
-
- 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
-
- 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
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Plasma Technology (AREA)
Abstract
The invention discloses a first wall structure for a strong field side of a Tokamak device, wherein the first wall is arranged on a strong field side wall of a vacuum chamber of the Tokamak device, a cross-section pressing strip is inserted into the thickness center of a graphite block, the graphite block is connected to a back plate by adopting a screw and butterfly washer structure, a back plate and graphite block combined structure is fixed to a ring support by a screw and a butterfly washer, the ring support is fixed to the strong field side wall of the vacuum chamber by an internal thread nut and an external thread stud, and a copper block/copper foil assembly is filled between the ring support and the strong field side wall of the vacuum chamber. The invention has the beneficial effects that: the first wall structure on the strong field side is not an active water cooling structure, but has better heat transfer performance, and can maximally save the physical space of plasma. All adopt fastener connection form in this structure, so the first wall structure of intense field side is easily installed and later stage operation maintenance, and plasma physical interface adjustment precision is high simultaneously.
Description
Technical Field
The invention belongs to a component applied to a China circulator II M (HL-2M) device, and particularly relates to a first wall structure for a strong field side of a Tokamak device.
Background
In the tokamaka arrangement, the first wall structure serves to enclose a first physical boundary of the plasma, preventing a substantial thermal load of the plasma from damaging the vacuum chamber and diagnostic equipment located within the vacuum chamber. The first wall on the side of the strong field is positioned on the inner wall of the central column of the vacuum chamber and belongs to the category of parts in the vacuum chamber. Because high-energy escape electrons and toroidal field ripple trapped ions often cause the first wall on the high-field side to be locally damaged due to excessive heat deposition, a novel first wall structure on the high-field side simultaneously meeting the following two main functions must be designed: firstly, the structure needs to effectively transmit plasma radiation energy to the outside of a vacuum chamber, and secondly, the structure is easy to install and maintain and has higher installation precision requirement.
Disclosure of Invention
The invention aims to provide a first wall structure for the strong field side of a Tokamak device, which has better heat transfer performance, is easy to install and maintain and has higher installation precision of a plasma physical interface.
The technical scheme of the invention is as follows: a first wall structure for the strong field side of a Tokamak device comprises a vacuum chamber strong field side wall, a ring support, an internal thread nut, a copper block/copper foil assembly, a pressing strip, a back plate, a graphite block, a screw, a butterfly washer and an external thread stud.
The external thread stud and the strong field side wall of the vacuum chamber adopt a welding form.
The ring supports are 35mm in thickness and 800mm in length, the ring supports are fixed to the side wall of the vacuum chamber high field through external threaded studs and inner hexagonal internal threaded nuts which are welded to the side wall of the vacuum chamber high field, the number of the first wall of the whole high field side is 10 in number in the circumferential direction through the ring supports, and the first wall is located at the end parts of two adjacent sectors of the vacuum chamber.
The size of the graphite block is two, one graphite block is a graphite block jointly fixed by two pressing strips, the other graphite block is a graphite block fixed by a single pressing strip, the size of the graphite block is twice that of the graphite block fixed by the single pressing strip, the graphite block is positioned in the middle of a single first wall module structure, and no bolt hole is formed in the surface facing the plasma; the latter are located at their both ends, and the surface is opened with the bolt hole for fixed single module to through ring support, and thickness is 25mm all.
A gap of 0.67mm is reserved between the graphite blocks, and the graphite blocks are mainly used for absorbing thermal deformation.
The side face of the graphite block is provided with 15 round holes for inserting the pressing strips with semicircular sections, the back face of the graphite block is made of 316L stainless steel, and the graphite block is mainly used for integrating the graphite blocks inserted with the pressing strips through fasteners to form a part, so that the graphite block is convenient to mount and fix.
The graphite foil is padded between the graphite block and the back plate and used for improving the heat transfer contact performance between the graphite block and the back plate, and the number of modules formed by integrating the graphite block and the back plate for the first wall required by the whole strong field side is 80.
And two ends of the graphite block and back plate combined structure are screwed and fixed to a ring support from the front surface of the first wall on the high field side through four M8 screws and butterfly washers, wherein the ring support is made of 316L stainless steel and has the thickness of 35 mm.
The invention has the beneficial effects that: the first wall structure on the strong field side is not an active water cooling structure, but has better heat transfer performance, and can maximally save the physical space of plasma. All adopt fastener connection form in this structure, so the first wall structure of intense field side is easily installed and later stage operation maintenance, and plasma physical interface adjustment precision is high simultaneously.
Drawings
Fig. 1 is a schematic view of a first wall structure for a strong field side of a tokamak apparatus according to the present invention;
FIG. 2 is a cross-sectional view of the fastener connection at both ends of the first wall structure at the high field side.
In the figure: 1 high field side wall of a vacuum chamber, 2 ring supports, 3 internal thread nuts, 4 copper block/copper foil assemblies, 5 section pressing strips, 6 back plates, 7 graphite blocks, 8 screws, 9 butterfly washers and 10 external thread studs.
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
As shown in fig. 1 and 2, a first wall structure for the high field side of a tokamak device comprises a back plate 6 and graphite block 7 connecting structure, a ring support 2, a copper block/copper foil assembly 4, a series of fasteners and the like.
The first wall is mainly installed on a strong field side wall 1 of a vacuum chamber of the Turkmak device, a semicircular section pressing bar 5 is inserted into a central opening of the thickness of a graphite block 7, and then the first wall is connected to a back plate 6 by adopting a screw and butterfly washer structure; the back plate 6 and the graphite block 7 combined structure are fixed on the ring support 2 through screws 8 and butterfly washers 9; the plasma high-field side wall is fixed to a vacuum chamber high-field side wall 1 through a ring support 2 through an internal thread nut 3 and an external thread stud 10, a copper block/copper foil assembly 4 is filled between the ring support 2 and the vacuum chamber high-field side wall 1 and used for adjusting the surface precision of a graphite block 7, and the copper block/copper foil assembly 4 is mainly used for adjusting the plasma physical interface precision and improving the contact heat transfer performance between the ring support 2 and the vacuum chamber high-field side wall 1. The thickness and shape of the copper block/copper foil assembly 4 are related to the processing precision of the strong field side wall 1 of the vacuum chamber, and the maximum adjustable precision range of the current design is 10 mm. The external thread stud 10 and the strong field side wall 1 of the vacuum chamber adopt a welding mode. The first wall on the high field side is supported by the ring 2, and has the thickness of 35mm and the length of 800 mm. The high-field side wall 1 of the vacuum chamber is fixed through an external thread stud 10 and an internal hexagonal internal thread nut 3 which are welded on the high-field side wall 1 of the vacuum chamber through a ring support 2. The total number of the first walls on the whole strong field side is 10 through a ring supporting ring, and the first walls are positioned at the end parts of two adjacent sectors of the vacuum chamber.
The side facing the plasma body is a graphite block 7 with a single curved surface, and the size of the graphite block 7 is two, one is the graphite block 7 fixed by two pressing strips together, and the other is the graphite block 7 fixed by a single pressing strip, and the size of the former is twice of that of the latter. The first wall module structure is positioned in the middle of the single first wall module structure, and no bolt hole is formed on the surface facing the plasma; the latter are located at both ends, with bolt holes on the surface for fixing a single module to the ring support 2, all 25mm thick. A gap of 0.67mm is reserved between the graphite blocks 7 and 7, and the gap is mainly used for absorbing thermal deformation. The side of the graphite block 7 is provided with a round hole 15 for inserting the pressing strip 5 with a semicircular section. The back face of the graphite block 7 is provided with a back plate 6 which is made of 316L stainless steel and is mainly used for integrating the graphite block 7 inserted with the pressing strip 5 into a component through a fastener, so that the graphite block is convenient to mount and fix. Graphite foil is padded between the graphite block 7 and the back plate 6 for improving the heat transfer contact performance between the graphite block and the back plate. The number of modules with the first wall required for the entire high field side, which are formed by the above-described graphite blocks 7 integrated with the back plate 6, amounts to 80.
For easy installation and maintenance of the high field side first wall structure, the graphite block 7 and back plate 6 combined structure is screwed and fixed at both ends from the front side of the high field side first wall to the ring support 2 by four M8 screws 8 and butterfly washers 9. Wherein, the ring support 2 is made of 316L stainless steel and has a thickness of 35 mm.
To eliminate the physical interface deviation between the graphite block 7 and the plasma, a copper block/copper foil assembly 4 is filled for adjusting the physical interface accuracy, which is located between the ring support 2 and the high field side vacuum chamber wall 1. The copper block/copper foil assembly 4 in this configuration can be adjusted to a deflection of 10mm, which depends primarily on the process tolerances of the high field sidewall 1 of the vacuum chamber.
The other main function is to effectively improve the mutual contact between the strong-field side wall 1 of the vacuum chamber and the first wall structure at the strong-field side, thereby improving the heat transfer performance of the first wall structure at the strong-field side.
In order to facilitate the installation and maintenance of the supporting component (comprising the ring support 2 and the copper block/copper foil assembly 4), the ring support 2 and the strong field side wall 1 of the vacuum chamber are fixed through an external thread stud 10 and an internal thread nut 3. Firstly, an M10 external thread stud 10 is welded on the strong field side wall 1 of the vacuum chamber, and then an inner hexagon nut 3 is screwed from the front side to fix the support component.
After integrating the graphite block 7 with the back plate 6 into one module, it is fixed to the ring support 2 by screwing M8 screws 8 with butterfly washers 9 at both ends. And a 1mm gap is reserved between every two adjacent modules, and each module is independent from each other and is easy to install and maintain in later period.
In order to avoid the situation that the fastener is directly faced to the plasma and bears a large amount of heat load to damage, the fastener is screwed to the graphite block 7 inserted with the pressing strip 5 from the concave surface of the back plate 6 to fix the graphite block 7. The overall thickness of the back plate 6 is 15mm, and the back plate is formed by rolling plates; the graphite block 7 is 25mm thick, and a through hole 15 is formed in the center of the thickness and used for inserting the semicircular section pressing strip 5; the position of the pressing strip 5 corresponding to the screw hole of the back plate 6 is provided with a screw hole with the diameter of 6, and the screw hole is used for fixing the back plate 6 and the graphite block 7.
The present invention is not limited to the above-described embodiments, and various changes may be made without departing from the gist of the present invention. The prior art can be adopted in the content which is not described in detail in the invention.
Claims (8)
1. A first wall structure for a high field side of a tokamak apparatus, comprising: the vacuum chamber high-field composite plate comprises a vacuum chamber high-field side wall (1), a ring support (2), an internal thread nut (3), a copper block/copper foil assembly (4), a pressing strip (5), a back plate (6), a graphite block (7), a screw (8), a butterfly washer (9) and an external thread stud (10), wherein the first wall is arranged on the vacuum chamber high-field side wall (1) of a Tork Mark device, the thickness center of the graphite block (7) is inserted into the cross-section pressing strip (5), then the vacuum chamber is connected to a back plate (6) by adopting a screw (8) and butterfly washer (9) structure, the back plate (6) and graphite block (7) combined structure is fixed on a ring support (2) by the screw (8) and the butterfly washer (9), the ring support (2) is fixed on a vacuum chamber high field side wall (1) by an internal thread nut (3) and an external thread stud (10), and a copper block/copper foil assembly (4) is filled between the ring support (2) and the strong field side wall (1) of the vacuum chamber.
2. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 1, wherein: the external thread stud (10) and the strong field side wall (1) of the vacuum chamber are welded.
3. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 1, wherein: the thickness of the ring support (2) is 35mm, the length of the ring support is 800mm, the ring support (2) is fixed on the vacuum chamber high-field side wall (1) through an external thread stud (10) and an inner hexagonal inner thread nut (3) which are welded on the vacuum chamber high-field side wall (1), the number of the first wall on the whole high-field side is 10 in total through the ring support ring direction, and the first wall is located at the end parts of two adjacent sectors of the vacuum chamber.
4. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 1, wherein: the graphite blocks (7) have two sizes, one is the graphite block (7) fixed by two pressing strips together, the other is the graphite block (7) fixed by a single pressing strip, the size of the graphite block is twice that of the graphite block, the graphite block is positioned in the middle of a single first wall module structure, and no bolt hole is formed in the surface facing the plasma; the latter are located at both ends thereof, the surfaces of which are provided with bolt holes for fixing the individual modules to the ring support (2), the thickness of each module being 25 mm.
5. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 4, wherein: a gap of 0.67mm is reserved between the graphite blocks (7) and is mainly used for absorbing thermal deformation.
6. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 4, wherein: the side of the graphite block (7) is provided with a round hole (15) for inserting the pressing strip (5) with the semicircular section, the back of the graphite block (7) is provided with a back plate (6) made of 316L stainless steel, and the graphite block (7) inserted with the pressing strip (5) is mainly integrated to form a component through a fastener, so that the installation and the fixation are facilitated.
7. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 1, wherein: and a graphite foil is padded between the graphite block (7) and the back plate (6) for improving the heat transfer contact performance between the graphite block and the back plate, and the number of modules formed by integrating the graphite block (7) and the back plate (6) into a first wall required by the whole strong field side is 80 in total.
8. A first wall structure for use on the high field side of a tokamak apparatus as defined in claim 1, wherein: and two ends of the graphite block (7) and back plate (6) combined structure are screwed and fixed to the ring support (2) from the front surface of the first wall on the high field side through four M8 screws (8) and butterfly washers (9), wherein the ring support (2) is made of 316L stainless steel and has the thickness of 35 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675853.3A CN110648769A (en) | 2018-06-27 | 2018-06-27 | First wall structure for strong field side of Tokamak device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810675853.3A CN110648769A (en) | 2018-06-27 | 2018-06-27 | First wall structure for strong field side of Tokamak device |
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| Publication Number | Publication Date |
|---|---|
| CN110648769A true CN110648769A (en) | 2020-01-03 |
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|---|---|---|---|
| CN201810675853.3A Pending CN110648769A (en) | 2018-06-27 | 2018-06-27 | First wall structure for strong field side of Tokamak device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963816A (en) * | 2021-11-09 | 2022-01-21 | 中国科学院合肥物质科学研究院 | Combined first wall structure suitable for high field side of tokamak device |
| CN114459193A (en) * | 2021-11-09 | 2022-05-10 | 中国科学院合肥物质科学研究院 | Water cooling module for Tokamak device adopting stainless steel copper alloy composite board and processing method thereof |
| CN114864113A (en) * | 2022-05-31 | 2022-08-05 | 核工业西南物理研究院 | First wall structure of tokamak |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167972A (en) * | 1993-12-15 | 1995-07-04 | Toshiba Corp | First wall for nuclear fusion device |
| EP1063871A1 (en) * | 1999-06-24 | 2000-12-27 | European Community | Divertorfiltering element for a tokamak nuclear fusion reactor, divertor employing the filtering element and tokamak nuclear fusion reactor employing the divertor |
| JP2001349969A (en) * | 2000-06-08 | 2001-12-21 | Japan Atom Energy Res Inst | Vacuum container of tokamak type nuclear fusion device |
| CN201549241U (en) * | 2009-09-10 | 2010-08-11 | 中国科学院等离子体物理研究所 | Connection structure for divertor parts of superconducting Tokamak device |
| CN102653856A (en) * | 2012-04-16 | 2012-09-05 | 中国科学院等离子体物理研究所 | Method for improving first wall fuel recycling of full-superconducting tokomak by using lithium metal coating layer |
| CN206532603U (en) * | 2016-12-30 | 2017-09-29 | 核工业西南物理研究院 | A kind of passive cooled TOKAMAK device feeble field side the first wall component |
| CN208507202U (en) * | 2018-06-27 | 2019-02-15 | 核工业西南物理研究院 | A kind of the first wall construction for tokamak device high field side |
-
2018
- 2018-06-27 CN CN201810675853.3A patent/CN110648769A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07167972A (en) * | 1993-12-15 | 1995-07-04 | Toshiba Corp | First wall for nuclear fusion device |
| EP1063871A1 (en) * | 1999-06-24 | 2000-12-27 | European Community | Divertorfiltering element for a tokamak nuclear fusion reactor, divertor employing the filtering element and tokamak nuclear fusion reactor employing the divertor |
| JP2001349969A (en) * | 2000-06-08 | 2001-12-21 | Japan Atom Energy Res Inst | Vacuum container of tokamak type nuclear fusion device |
| CN201549241U (en) * | 2009-09-10 | 2010-08-11 | 中国科学院等离子体物理研究所 | Connection structure for divertor parts of superconducting Tokamak device |
| CN102653856A (en) * | 2012-04-16 | 2012-09-05 | 中国科学院等离子体物理研究所 | Method for improving first wall fuel recycling of full-superconducting tokomak by using lithium metal coating layer |
| CN206532603U (en) * | 2016-12-30 | 2017-09-29 | 核工业西南物理研究院 | A kind of passive cooled TOKAMAK device feeble field side the first wall component |
| CN208507202U (en) * | 2018-06-27 | 2019-02-15 | 核工业西南物理研究院 | A kind of the first wall construction for tokamak device high field side |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113963816A (en) * | 2021-11-09 | 2022-01-21 | 中国科学院合肥物质科学研究院 | Combined first wall structure suitable for high field side of tokamak device |
| CN114459193A (en) * | 2021-11-09 | 2022-05-10 | 中国科学院合肥物质科学研究院 | Water cooling module for Tokamak device adopting stainless steel copper alloy composite board and processing method thereof |
| CN113963816B (en) * | 2021-11-09 | 2023-08-18 | 中国科学院合肥物质科学研究院 | Combined first wall structure suitable for high-field side of tokamak device |
| CN114459193B (en) * | 2021-11-09 | 2023-09-12 | 中国科学院合肥物质科学研究院 | Water cooling module for tokamak device adopting stainless steel copper alloy composite board and processing method thereof |
| CN114864113A (en) * | 2022-05-31 | 2022-08-05 | 核工业西南物理研究院 | First wall structure of tokamak |
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