JP2007115635A - High temperature superconducting coil and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manufacture a high-temperature superconducting coil with a small curvature required in a magnet for an accelerator. <P>SOLUTION: This high temperature superconducting coil is equipped with a high temperature superconducting thin film wire rod containing a metal substrate 4, a high temperature superconducting thin film 3 formed on the metal substrate 4, and a stabilized metal layer 5 formed on the high temperature superconducting thin film 3, and is formed by laminating a plurality of plates 1 each obtained by processing the high temperature superconducting thin film wire rod into a shape having a current passage containing a slit part 2 in its in-plane two dimensional direction while connecting them. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a high-temperature superconducting coil that is effective for generating a high magnetic field in a superconducting coil that is an object of an accelerator magnet, and a manufacturing method thereof.

  Since this type of accelerator magnet needs to generate a high magnetic field in a small space, a superconducting wire having a uniform cross-sectional shape in the longitudinal direction is wound to form a coil (for example, Patent Document 1). reference).

  FIG. 12 is a schematic perspective view showing a basic configuration of a conventional superconducting coil, and FIG. 13 is a schematic configuration diagram showing a basic configuration of a conventional superconducting multipolar coil.

  As shown in the figure, the superconducting coil 11 is manufactured by winding a round wire or a flat wire 12 of a superconducting conductor and is formed in a racetrack shape. A conventional superconducting magnet having a basic configuration is composed of a six-pole coil in which six superconducting coils 11 are arranged.

  This accelerator magnet needs to generate a high magnetic field (magnetic field gradient) in a small space. For this reason, in a multipolar coil, a high magnetic field is generated by reducing the inner diameter of the end portion of the coil. As another conventional example, a saddle coil shape may be employed in order to increase the magnetic field generation efficiency as a hexapole coil.

In the above configuration example, the superconducting coil may be immersed and cooled by a cryogenic refrigerant such as liquid helium or may be conductively cooled by a small refrigerator. In either case, a superconducting wire having a uniform cross-sectional shape in the longitudinal direction is wound to form a coil.
Japanese Patent Laid-Open No. 3-95806

Since the conventional accelerator magnet described above needs to generate a high magnetic field in a small space, a superconducting wire having a uniform cross-sectional shape in the longitudinal direction is wound to form a coil. Since this coil needs to generate a high magnetic field, it is made of NbTi superconducting wire, Nb ₃ Sn superconducting wire, or the like.

However, NbTi superconducting wires used in the past have significantly reduced superconducting characteristics in a high magnetic field, and there are limits to the generated magnetic field and magnetic field gradient. Although Nb ₃ Sn superconducting wire can be operated in a magnetic field higher than NbTi, the strength of the glass fiber for insulation may decrease after the heat treatment for generating the superconducting phase, and the withstand voltage may decrease. There have been problems such as winding disturbance, and allowable bending strain limiting the coil inner diameter when winding the wire after heat treatment.

Compared with the conventional low-temperature superconducting wire such as NbTi or Nb ₃ Sn, the high temperature superconducting (HTS) wire has a high potential in a low-temperature high magnetic field and is a promising material. However, because this high-temperature superconductor is vulnerable to strain, the bending curvature is limited, and a coil with a low curvature such as that required for an accelerator magnet is reacted and wound (the wire is wound after the heat treatment to generate the superconducting phase). ) And cannot be produced. In addition, since it is difficult to achieve an electrical insulation technique that can withstand the temperature of heat treatment for generating a superconducting phase, there is a problem that it is difficult to realize coiling by wind-and-react (heat treatment after coil winding to generate a superconducting phase).

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a high-temperature superconducting coil capable of producing a coil having a small curvature as required for an accelerator magnet and a method for producing the same.

  To achieve the above object, the high-temperature superconducting coil of the present invention includes a metal substrate, a high-temperature superconducting thin film formed on the metal substrate, and a stabilized metal layer formed on the high-temperature superconducting thin film. A high-temperature superconducting thin film wire is provided, and the high-temperature superconducting thin-film wire is formed by laminating a plurality of plates formed by connecting the high-temperature superconducting thin film wire into a shape having a current path including a slit portion in a two-dimensional direction in the plane. To do.

  In order to achieve the above object, in the high temperature superconducting coil of the present invention, a metal substrate, a high temperature superconducting thin film formed on the metal substrate, a stabilized metal layer formed on the high temperature superconducting thin film, And a plurality of plates made of the high-temperature superconducting thin film wire are stacked and bent in the flatwise bending direction.

  In order to achieve the above object, in the high temperature superconducting coil of the present invention, a metal substrate, a high temperature superconducting thin film formed on the metal substrate, a stabilized metal layer formed on the high temperature superconducting thin film, A high-temperature superconducting thin-film wire including a plurality of plates formed by processing the high-temperature superconducting thin-film wire into a shape having a loop-shaped current path in a two-dimensional direction in the plane. And

    In order to achieve the above object, in the method of manufacturing a high-temperature superconducting coil of the present invention, a metal substrate, a high-temperature superconducting thin film formed on the metal substrate, and a stabilized metal formed on the high-temperature superconducting thin film A high temperature superconducting thin film wire forming step for forming a high temperature superconducting thin film wire including a layer, a plate processing step for processing the formed high temperature superconducting thin film wire into a plate having a current path in a two-dimensional direction in the plane, and the processing And laminating step of laminating a plurality of connected plates while being connected.

  According to the high-temperature superconducting coil and the manufacturing method thereof of the present invention, a coil having a small curvature as required for an accelerator magnet can be produced by producing a wide width using a high-temperature superconducting thin film wire.

  Embodiments of a high-temperature superconducting coil and a method for manufacturing the same according to the present invention will be described below with reference to the drawings. Here, the same or similar parts are denoted by common reference numerals, and redundant description is omitted.

  1A and 1B are explanatory views showing the configuration of a plate forming a superconducting coil according to a first embodiment of the present invention. FIG. 1A is a plan view and FIG. 1B is a front view. FIG. 2 is a perspective view showing a current path of the superconducting coil according to the first embodiment of the present invention, and FIG. 3 is a front view showing a current path of the superconducting coil according to the first embodiment of the present invention. FIG.

  As shown in the figure, for example, the high-temperature superconducting coil is configured by laminating a plurality of high-temperature superconducting thin film wire plates 1a, 1b, and 1c formed from a superconducting thin film wire.

  Between the laminated high-temperature superconducting thin film wire plates 1a, 1b, and 1c, insulating material sheets 6a and 6b as insulating materials are interposed. The upper high-temperature superconducting thin film wire plate 1a has a current path 7 formed in a two-dimensional direction in the plane, and this current sequentially flows to the lower high-temperature superconducting thin film wire plate 1d as indicated by arrows 7a, 7b, 7c and 7d. As a result, a current flow path is secured for the entire laminate.

  The high-temperature superconducting thin film wire plate 1 is formed of a high-temperature superconducting thin film 3 made of YBCO, SmBCO or the like, which will be described later, and has a racetrack shape. The inner diameter side of the superconducting thin film plate 1 is cut out, and a part of the loop is cut to form a slit portion 2. The cut end portion of the slit portion 2 is connected to the end portion of the next layer plate 1 to form a coil.

  The high-temperature superconducting thin film wire plate 1 is configured such that a high-temperature superconducting thin film 3 is sandwiched between a metal substrate 4 and a stabilizing metal layer 5. Since the stabilized metal layer 5 has a relatively low electric resistivity, it can be connected with a low electric resistance.

Here, the composition of the superconducting thin film 3 will be described. This superconducting thin film is made of RE-123 oxide superconductor (REBa ₂ Cu) such as YBa ₂ Cu ₃ O _7-X (hereinafter referred to as YBCO) or SmBa ₂ Cu ₃ O _7-X (hereinafter referred to as SmBCO). ₃ O _7-X : RE is formed from rare earth elements such as Y, La, Nd, Sm, Eu, Gd).

  Next, the manufacturing method of the high temperature superconducting thin film wire plate 1 will be described.

The high temperature superconducting thin film wire plate 1 is formed from a metal substrate 4 made of, for example, Ni or a Ni alloy. An intermediate layer deposited on the metal substrate 4 by an ion beam assist method (IBAD method: Ion Beam Assist Deposition System), and a CeO deposited on the intermediate layer by a pulse laser deposition method (PLD method: Pulse Laser Deposition System) or the like. ₂ and a superconducting oxide layer 3 is formed on the cap layer. Further, a stabilized metal layer 5 made of Au, Ag or the like and having a relatively low electrical resistivity is formed on the oxide superconducting layer 3.

  In the present embodiment, a superconducting thin film wire formed from YBCO, SmBCO, or the like can be manufactured in a wide width. For this reason, a shape with a small curvature can be formed without distorting the superconducting phase by punching out into a shape of a vertical cross section in the coil axis direction, cutting out, or the like. Moreover, since the connection part in the edge part of the slit 2 of the high temperature superconducting thin film wire plate 1 is shifted in phase along the current path and does not overlap, the coil thickness at the time of stacking the high temperature superconducting thin film wire plate 1 can be reduced. It can be kept almost constant.

  According to the present embodiment, the factor of applying strain due to the coil winding to the high-temperature superconductor is eliminated, and a coil having an extremely small curvature portion that cannot be realized by the wire winding is produced without deteriorating the superconducting characteristics. can do.

  In addition, since the width of the path can be arbitrarily set along the current path, an electrical design in which the current density is changed in the direction of the current path, which cannot be realized with a general coil wound with a long wire, can be realized. it can.

  FIG. 4 is a front view showing a current path of the superconducting coil according to the second embodiment of the present invention.

  In the present embodiment, the high-temperature superconducting thin film wire plates 1 of the first embodiment are connected one by one, and the same reference numerals are used for the same or similar parts as those in the first embodiment. A duplicate description will be omitted.

  As shown in the figure, a current path 7 as a coil is formed by laminating a high-temperature superconducting thin film wire plate 1 and an insulating material sheet 6 each having a high-temperature superconducting thin film as a base material. The high-temperature superconducting thin film wire plate 1 is configured by sandwiching a high-temperature superconducting thin film 3 between a metal substrate 4 and a stabilizing metal 5. The stabilizing metal 5 is formed of a stabilizing metal layer 5 made of Au, Ag or the like and having a relatively low electrical resistivity. For this reason, a connection with small electrical resistance is possible.

  The upper high-temperature superconducting thin film wire plate 1a is formed with a current path 7 in a two-dimensional direction in the plane so that this current flows sequentially to the lower high-temperature superconducting thin film wire plate 1d as indicated by arrows 7a, 7b and 7d. It has become.

  The high-temperature superconducting thin film wire plates 1 are laminated so that they are opposed to each other, that is, the layers are opposed to each other with the insulating material sheet 6 being changed for each layer. In the arrow 7c, the stabilizing metals 5 of the second and third high-temperature superconducting thin film wire plates 1 on the left and right sides connected to each other are connected. Since the stabilizing metals 5 and 5 have a relatively low electrical resistivity, a connection with a low electrical resistance is possible.

  According to the present embodiment, since the left and right high-temperature superconducting thin film wire plates 1 are turned upside down and the stabilizing metals 5 having low electrical resistance are connected to each other, the electrical conductivity is low and the connection resistance is likely to be high. In the connection part where the surfaces face each other, the electrical resistance of the connection inside the coil can be kept low.

  Thus, a superconducting coil with few connection parts can be manufactured by laminating a plate that forms a closed circuit for each sheet, and a permanent current magnet having an extremely long decay time constant can be obtained by field cooling. Can do.

  FIG. 5 is a plan view showing the configuration of the high-temperature superconducting coil according to the third embodiment of the present invention.

  In the present embodiment, the plate 1 of the first embodiment is arranged on an in-plane concentric axis, and the same or similar parts as those of the first embodiment are denoted by the same reference numerals, Duplicate explanation is omitted.

  As shown in the figure, for example, the high-temperature superconducting coil is configured by arranging three high-temperature superconducting thin film wire plates 1a, 1b and 1c on the same axis in the plane. That is, the high-temperature superconducting thin film wire plates 1a, 1b, and 1c having different diameters are arranged on the same axis in the plane. Reference numeral 2 denotes a slit portion of the laminated high-temperature superconducting thin film wire plate 1.

  In the present embodiment, by narrowing the width of the current path 7 on the outer diameter side rather than the inner diameter side of the high-temperature superconducting coil, grading can be performed with the current density lowered from the inner diameter side toward the outer diameter side.

  According to the present embodiment, so-called grading in which the current density is different between the inner diameter side and the outer diameter side of the high-temperature superconducting coil can be performed. Thus, by using the tape made of the high-temperature superconducting thin film wire plate 1 according to the empirical magnetic field, it is possible to reduce the volume of the high-temperature superconducting coil as a whole and increase the magnetic field generation efficiency.

  Thus, since the width of the path can be arbitrarily set along the current path, the current density is changed along the current path direction that cannot be realized by a general coil wound with a long wire. be able to.

  FIG. 6 is a plan view showing a configuration of a plate forming a superconducting coil according to the fourth embodiment of the present invention.

  In the present embodiment, a portion having a high empirical magnetic field when the high-temperature superconducting thin film wire plate 1 of the first embodiment is coiled is formed wide, and is the same as or similar to the first embodiment. Parts are denoted by common reference numerals, and redundant description is omitted.

  In the present embodiment, the tape width formed of the high-temperature superconducting thin film wire plate 1 is changed along the current path direction. By widening the portion with a high empirical magnetic field when coiled, it is possible to perform electrical design in which the current density is changed in the direction of the current path. Thus, it is possible to equalize the load factor inside the wire without being restricted by the current density of the entire coil due to the high magnetic field.

  According to the present embodiment, for example, by using the high-temperature superconducting thin film wire plate 1 in which a portion having a high empirical magnetic field such as a racetrack-shaped coil end portion is widely cut, the load factor inside the winding is equalized. I am letting. Thus, it is possible to obtain a superconducting coil in which the current density is changed along the current path direction which cannot be realized by a general coil wound with a long wire.

  7A and 7B are explanatory views showing the configuration of the superconducting coil according to the fifth embodiment of the present invention. FIG. 7A is a plan view showing the stacking procedure, and FIG. 7B is a front view thereof.

  In the present embodiment, the high-temperature superconducting thin film wire plate 1 having a different outer shape as in the first embodiment is formed by laminating in the coil axis direction, and the same or similar parts as in the first embodiment are included. Duplicate description is omitted by attaching common reference numerals.

  As shown in the figure, the high-temperature superconducting coil is formed, for example, by laminating high-temperature superconducting thin film wire plates 1a, 1b, 1c,. A part of the plates 1a, 1b, 1c,... Is cut to form a slit portion 2. Further, a bore 8 is formed at the center of the plates 1a, 1b, 1c,.

  According to the present embodiment, the high-temperature superconducting thin film wire plates 1a, 1b, 1c,... Having different outer shapes in the coil axial direction are laminated to form a gap between the coils when forming a multipolar coil. Can be obtained, and the efficiency of magnetic field generation as a multipolar coil can be increased.

  8A and 8B are explanatory views showing the configuration of the superconducting coil according to the sixth embodiment of the present invention. FIG. 8A is a plan view showing the stacking procedure, and FIG. 8B is a front view thereof.

  In the present embodiment, the coil cross section of the high-temperature superconducting thin film wire plate 1 having a different external shape from that of the fifth embodiment is formed in a saddle shape, and the same or similar parts as those of the fifth embodiment are included. Duplicate description is omitted by attaching common reference numerals.

  As shown in this figure, the high-temperature superconducting coil is formed, for example, by laminating high-temperature superconducting thin film wire plates 1a, 1b, and 1c having different outer shapes in the coil axial direction. Moreover, the high-temperature superconducting thin film wire plate 1 is bent in the flatwise bending direction by applying strain in the thickness direction. By superposing the high-temperature superconducting thin film wire plates 1a, 1b, and 1c bent in the flatwise bending direction, a superconducting coil having a coil cross-section shaped into a bowl shape can be obtained.

  According to the present embodiment, the high-temperature superconducting thin film wire plates 1a, 1b, and 1c bent in the flatwise bending direction can be stacked to form a saddle type coil shape, and a multipolar coil As a result, the magnetic field generation efficiency can be increased.

  In addition, a superconducting coil having a saddle type coil shape acts on a tape wire wound in a flatwise direction on the inner diameter side so that a coil magnetic field is applied in a parallel direction. In general, since thin film wires such as YBCO have a remarkable decrease in superconducting characteristics with respect to a magnetic field component perpendicular to the tape surface, this embodiment suppresses a decrease in superconductivity due to an empirical magnetic field.

  FIG. 9 is a perspective view showing the configuration of the superconducting coil according to the seventh embodiment of the present invention.

  In the present embodiment, the inner layer side coil 9 formed by bending the high temperature superconducting thin film wire plate 1 of the first embodiment in the flatwise bending direction and the outer layer side formed by cutting out the high temperature superconducting thin film wire plate. The same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As shown in this figure, the high-temperature superconducting coil is configured by disposing an inner layer side coil 9 and an outer layer side coil 10 outside the inner layer side coil 9 and on the neutral axis in the bending direction. The inner layer side coil 9 is formed by bending the high temperature superconducting thin film wire plate 1 in a flatwise bending direction. The inner layer side coil 9 may be used alone, or is configured by disposing the outer layer side coil 10 on the neutral axis in the bending direction of the inner layer side coil 9.

  The outer layer side coil 10 is formed by cutting out the high temperature superconducting thin film wire plate 1. Alternatively, it is formed by winding the superconducting wire 12 having a round cross section or a square cross section shown in FIG.

  According to the present embodiment, the inner layer side coil 9 is formed by bending the high temperature superconducting thin film wire plate 1 in the flatwise bending direction, so that the tape wire can be arranged along the magnetic field lines generated by the coil. . For this reason, it becomes possible to reduce the magnetic field component perpendicular to the tape surface.

  FIG. 10 is a plan view showing a procedure for stacking superconducting coils according to the eighth embodiment of the present invention.

  In this embodiment, the high-temperature superconducting thin film wire of the first embodiment is cut out and laminated, and the superconducting closed circuit is provided, and the same or similar part as the first embodiment A common reference numeral is assigned to each to omit redundant description.

  As shown in this figure, the superconducting coil is manufactured by punching or cutting out the high-temperature superconducting thin film wire plate 1. Moreover, the cut out high temperature superconducting thin film wire plate 1 is laminated to have a superconducting closed circuit. Further, a part of the coil is brought into a normal conducting state by a method such as heating with a heater. That is, a part of the high-temperature superconducting thin film wire is heated to provide a thermal or magnetic normal conduction transition mechanism.

  According to the present embodiment, the individual high-temperature superconducting thin film wire plates 1a, 1b, 1c form a superconducting closed loop. Furthermore, a permanent current coil that does not contain a normal conductive resistance component in connection resistance, etc. is obtained by applying an external magnetic field to a part of the coil in a normal conductive state by heating or the like, and cooling to a very low temperature in this magnetic field. Is possible.

  FIG. 11 is a plan view showing a procedure for stacking superconducting coils according to the ninth embodiment of the present invention.

  This embodiment is formed by cutting out and stacking a plurality of high-temperature superconducting thin film wire plates 1a, 1b, and 1c of the first embodiment into a plurality of windings, and is the same as or similar to the first embodiment. Parts are denoted by common reference numerals, and redundant description is omitted.

  As shown in the figure, for example, the superconducting coil is formed by cutting out and laminating a plurality of high-temperature superconducting thin film wire plates 1a, 1b, 1c into a plurality of turns. Between the laminated high-temperature superconducting thin film wire plates 1a, 1b, and 1c, insulating material sheets 6a and 6b as insulating materials are interposed.

  According to the present embodiment, each of the high-temperature superconducting thin film wire plates 1a, 1b, 1c is formed by cutting out and laminating into a plurality of windings, so that the magnetic field generation efficiency as a multipolar coil can be further increased.

  Furthermore, the present invention is not limited to the above-described embodiments, and the superconducting phase that is the substrate of the high-temperature superconducting thin film wire plate may be manufactured by sputtering without departing from the gist of the present invention. Various modifications can be made within the range.

It is explanatory drawing which shows the structure of the plate which forms the superconducting coil of the 1st Embodiment of this invention, (a) is this top view, (b) is this front view. The perspective view which shows the electric current path | route of the superconducting coil of the 1st Embodiment of this invention. The front view which shows the electric current path | route of the superconducting coil of the 1st Embodiment of this invention. The front view which shows the electric current path of the superconducting coil of the 2nd Embodiment of this invention. The top view which shows the structure of the superconducting coil of the 3rd Embodiment of this invention. The top view which shows the structure of the plate which forms the superconducting coil of the 4th Embodiment of this invention. It is explanatory drawing which shows the structure of the superconducting coil of the 5th Embodiment of this invention, (a) is a top view which shows this lamination | stacking procedure, (b) is this front view. It is explanatory drawing which shows the structure of the superconducting coil of the 6th Embodiment of this invention, (a) is a top view which shows this lamination | stacking procedure, (b) is this front view. The bird's-eye view which shows the structure of the superconducting coil of the 7th Embodiment of this invention. The top view which shows the lamination | stacking procedure of the superconducting coil of the 8th Embodiment of this invention. Schematic which shows the structural example of the superconducting plate concerning the 9th Example of this invention. The schematic perspective view which shows the basic composition of the conventional superconducting coil. The schematic block diagram which shows the basic composition of the conventional superconducting multipolar coil.

Explanation of symbols

  1, 1a, 1b, 1c, 1d ... high temperature superconducting thin film wire plate, 2 ... slit, 3 ... high temperature superconducting thin film layer, 4 ... metal substrate, 5 ... stabilized metal layer, 6,6a, 6b ... insulating sheet, 7 , 7a, 7b, 7c, 7d ... current path, 8 ... bore.

Claims (14)

A metal substrate;
A high-temperature superconducting thin film formed on the metal substrate;
A stabilizing metal layer formed on the high-temperature superconducting thin film;
Comprising a high-temperature superconducting thin film wire containing
A high-temperature superconducting coil comprising a plurality of plates formed by processing the high-temperature superconducting thin film wire into a shape having a current path including a slit portion in a two-dimensional direction in a plane while being connected.   2. The high-temperature superconducting coil according to claim 1, wherein the stacked metal plates are connected to the stabilizing metal layer by changing the front and back sides.   3. The high-temperature superconducting coil according to claim 1, wherein the stacked plates are connected at the slit portion with a phase shifted along the current path. 4.   4. The stacked plates according to claim 1, wherein plates having different diameters are stacked to form a plurality of coils, and these coils are arranged on an in-plane concentric axis. The high temperature superconducting coil according to any one of the above.   5. The high-temperature superconducting coil according to claim 4, wherein the stacked plates are configured from plates in which the width of the current path on the inner side in the coil radial direction is wider than the width of the outer current path.   The high-temperature superconducting coil according to any one of claims 1 to 5, wherein the stacked plates are formed in a shape in which a width of the current path is changed along the current path.   The high temperature superconducting coil according to any one of claims 1 to 6, wherein the stacked plates are configured by stacking plates having different outer shapes in a coil axial direction. A metal substrate;
A high-temperature superconducting thin film formed on the metal substrate;
A stabilizing metal layer formed on the high-temperature superconducting thin film;
Comprising a high-temperature superconducting thin film wire containing
A high-temperature superconducting coil comprising a plurality of plates made of this high-temperature superconducting thin-film wire and being bent in a flatwise bending direction.   An inner layer side coil including a high temperature superconducting thin film wire bent in the flatwise bending direction and the high temperature superconducting thin film wire provided outside the inner layer side coil are processed into a shape having a current path in a two-dimensional direction in the plane. The high temperature superconducting coil according to claim 8, further comprising: an outer layer side coil configured by laminating a plurality of plates formed in a connected manner.   An inner layer coil including a high-temperature superconducting thin film wire bent in the flatwise bending direction and an outer layer formed by winding a superconducting wire having a round cross section or a square cross section provided outside the inner layer coil. The high-temperature superconducting coil according to claim 8, further comprising a side coil.   The high-temperature superconducting coil according to any one of claims 1 to 10, wherein the stacked plates are configured such that a coil cross-section is shaped into a bowl shape. A metal substrate;
A high-temperature superconducting thin film formed on the metal substrate;
A stabilizing metal layer formed on the high-temperature superconducting thin film;
Comprising a high-temperature superconducting thin film wire containing
A high-temperature superconducting coil comprising a plurality of plates formed by processing the high-temperature superconducting thin film wire into a shape having a loop-like current path in a two-dimensional direction in a plane, and connecting them together.   13. The high temperature superconducting coil according to claim 12, further comprising a thermal or magnetic normal conducting transition mechanism provided by heating a part of the high temperature superconducting thin film wire. A high temperature superconducting thin film wire forming step for forming a high temperature superconducting thin film wire comprising a metal substrate, a high temperature superconducting thin film formed on the metal substrate, and a stabilizing metal layer formed on the high temperature superconducting thin film;
A plate processing step for processing the formed high-temperature superconducting thin film wire into a plate having a current path in an in-plane two-dimensional direction;
A laminating step of laminating while processing the plurality of processed plates;
A method for producing a high-temperature superconducting coil, comprising:

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