CN105469927A - Superconducting magnet system for providing high-intensity magnetic field for X ray total-scattering apparatus - Google Patents
Superconducting magnet system for providing high-intensity magnetic field for X ray total-scattering apparatus Download PDFInfo
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- CN105469927A CN105469927A CN201610013915.5A CN201610013915A CN105469927A CN 105469927 A CN105469927 A CN 105469927A CN 201610013915 A CN201610013915 A CN 201610013915A CN 105469927 A CN105469927 A CN 105469927A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
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Abstract
The invention provides a superconducting magnet system for providing a high-intensity magnetic field for an X ray total-scattering apparatus. The superconducting magnet system comprises a superconducting magnet part and a lower temperature system part, wherein the superconducting magnet part is combined by multiple pairs of separated superconducting coils; the skeleton of the superconducting coil pair is combined by two groups of detachable structures; a space for mounting a 80 degrees +80 degrees perpendicular wide angle room temperature optical window and a horizontal room temperature aperture for inserting a test sample are mounted in the middle of the skeleton; the superconducting magnet system can run at a temperature of 4.5K liquid helium temperature and can provide 0-10T adjustable central magnetic field intensity. The superconducting magnet system provided by the invention has the advantages of long-term closed loop operation, low operation cost, compact structure, stability, reliability, capability of realizing zero evaporation of liquid helium and the like.
Description
Technical field
The present invention relates to a kind of superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition, particularly a kind of have wide angle optical window, multipair NbTi/Cu and Nb
3sn superconducting coil combines, central magnetic field intensity is the superconducting magnet system of 10T.
Background technology
Material science under high-intensity magnetic field and Condensed Matter Physics are one of natural science applied important research field.The energy (~ meV) that the high-intensity magnetic field of more than 10T provides is suitable with the energy magnitude of the crystal field energy in material, exchange energy and various elementary excitation etc., in corresponding magnetic length (magneticlength ~ 100) and material, the feature " size " such as electron mean free path, magnetic correlation length, superconduction coherence length is suitable, so can produce fundamental effect to the physical property of the material be in wherein.
In theory, obtain key that the structural information of material under high-intensity magnetic field is the micromechanism understanding fully physical effect under high-intensity magnetic field and carry out the basis of associated materials design.The understanding of usual people to material structure derives from the average structure information (i.e. long-range periodicity lattice structure) of X-ray diffraction or neutron diffraction gained.At present, superconducting magnet is combined with X ray in the world, study the average crystalline texture change of induced by magnetic field in associated materials by diffraction method, and achieve many original innovations, but the magnetic field intensity of superconducting magnet is all far below 10T.Domesticly to yet there are no superconducting magnet and the report of X-ray diffraction in conjunction with aspect.
Now, the high-intensity magnetic field condition developed rapidly as obtaining more than 10T magnitude of low-temperature superconducting technology provides technical guarantee, and the physical property measurement under high-intensity magnetic field (as magnetic susceptibility, electronic transport, thermotransport, specific heat, spectrum etc.) is extensively carried out.Therefore, utilize the low-temperature superconducting wire of domestic production, by the processing technology routine of exploitation, develop the high field super magnet system with wide angle optical window, and the 10T high-intensity magnetic field this system provided combines with Laboratory X-ray light source and realizes dependence test function, be used for average (based on the diffraction function) of research material under high-intensity magnetic field, local lattice structure (based on total scattering function) changes, under can be research high-intensity magnetic field, the micromechanism of Material Physics effect provides complete microstructure information, simultaneously also for the design of material based on microscopic heat conduction provides reference frame, therefore be of great practical significance.
There is provided a superconducting magnet system for X ray total scattering device high-intensity magnetic field condition, can be on the one hand X ray total scattering device provides and has wide angle optical window; On the other hand according to the needs of test subscriber, the high-intensity magnetic field condition that 0-10T is adjustable can be provided.The central magnetic field intensity that the superconducting magnet system of external development and Application X ray total scattering device under high-intensity magnetic field provides at present mostly is 0-5T scope, and this research domestic is still also located under development for blank.
Summary of the invention
The object of the invention is for providing high-intensity magnetic field condition for the X ray total scattering device of material property research and design of material under high-intensity magnetic field, specifically a kind of superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, 10T central magnetic field intensity can be provided, there is long-time operation with closed ring and the advantage such as operating cost is cheap, compact conformation and reliable and stable, can realize liquid helium zero evaporation.
The technical solution used in the present invention is:
A kind of superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, include superconducting magnet part and cryogenic system part, it is characterized in that: described superconducting magnet part adopts the superconducting coil of multipair separation to combine, the right skeleton of superconducting coil adopts two groups of separate type textural associations to form, be provided with the space for installing 80 °+80 ° vertical wide-angle room temperature optical windows in the middle of described skeleton and test sample horizontal room temperature aperture used for inserting, can run under 4.5K liquid helium temperature, the central magnetic field intensity that 0-10T is adjustable can be provided.
The described superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition, is characterized in that: the superconducting coil of described multipair separation comprises two pairs of NbTi/Cu coils and a pair Nb
3sn coil.
The described superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition, is characterized in that: described skeleton comprises one group of NbTi/Cu magnet winding skeleton, one group of Nb
3sn magnet winding skeleton, often organizes NbTi/Cu magnet winding skeleton or Nb
3sn magnet winding skeleton comprises two symmetrical skeleton structures respectively, each skeleton structure includes interior plate, outer panel and the middle coil axes connecting interior plate, outer panel, two pairs of NbTi/Cu coil windings are on the coil axes of two skeleton structures of same group of NbTi/Cu magnet winding skeleton, NbTi/Cu coil, outer NbTi/Cu coil in forming, Nb
3sn coil winding is at Nb
3on the coil axes of two skeleton structures of Sn magnet winding skeleton; Described Nb
3the skeleton structure of Sn magnet winding skeleton is embedded in the skeleton structure of NbTi/Cu magnet winding skeleton; The madial wall of the interior plate of two skeleton structures of described NbTi/Cu magnet winding skeleton is provided with dismountable mounting structure.
Described a kind of superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, it is characterized in that: described mounting structure includes multiple mounting blocks, each mounting blocks is fixed on described interior plate, mounting blocks on two interior plates adopts three 12mm length to position with spacing for 100mm junction of the edges of two sheets of paper pin, and utilizes 12 M12 screw soket head cap screws to carry out fastening.
The described superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, it is characterized in that: arrange in the middle of described skeleton for 80 °+80 ° vertical wide-angle room temperature optical windows are installed space in 80 °+80 ° vertical wide-angle room temperature optical windows are installed, its splitting seam room temperature width is 10mm.
The described superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition, is characterized in that: the described horizontal room temperature aperture for inserting test sample used is of a size of 40mm.
The described superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition, is characterized in that: described outer NbTi/Cu coil to providing 6.84T central magnetic field, the Nb of interpolation
3sn coil is to providing 3.16T central magnetic field.
The described superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition, is characterized in that: the whole coil windings of described superconducting magnet part adopts parallel way to connect a superconducting switch and two diodes, two diode poles on the contrary.
The described superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, it is characterized in that: described cryogenic system part includes cooled cryostat, protective shield of radiation, liquid helium collecting chamber, G-M refrigeration machine 7, the little liquid helium room of main magnet, described superconducting magnet part is arranged on the little liquid helium room of main magnet, liquid helium collecting chamber and the little liquid helium room of main magnet are placed in protective shield of radiation, the outer surface of protective shield of radiation is connected with cooled cryostat by adjustable suspension rod, and protective shield of radiation upper surface is connected with the cooling realized protective shield of radiation with the one-level cold head of G-M refrigeration machine; The little liquid helium room of main magnet is connected with cooled cryostat through protective shield of radiation by cross-tie, and one end of main magnet little liquid helium room is lifted on a load-bearing flange of protective shield of radiation, the other end by side suspension rod and passes protective shield of radiation by spacing thermal insulation support column and cooled cryostat carries out point cantact; The 4.2K secondary cold head of GM refrigeration machine 7 direct connection with liquid helium after-condenser inserts in liquid helium collecting chamber afterwards, and liquid helium collecting chamber adopts conduit to be communicated with the little liquid helium room of main magnet simultaneously.
The described superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, it is characterized in that: described cooled cryostat upper surface has aspirating hole to obtain vacuum, the high temperature current feed simultaneously leaving infusion port for subsequent use and insertion a pair 150A is powered to superconducting magnet part, is also provided with quench explosion valve with release pressure.
Superconducting magnet system of the present invention can produce when passing to rated operational current and be 10T central magnetic field intensity to the maximum, there is 80 °+80 ° vertical wide angle optical room temperature windows (splitting seam room temperature width is 10mm) and the horizontal room temperature aperture of 40mm, uniformity of magnetic field is better than ± 0.7% (in 1cmDSV), be mainly X-ray diffraction measurement mechanism and strong magnetic field circumstance is provided, also can be applied on other scientific research instruments of the same type and device.Superconducting magnet system of the present invention can realize operation with closed ring for a long time, and the key realizing long operation with closed ring is the connection resistance as far as possible reducing all coils in this superconducting magnet system.
Advantage of the present invention is:
Superconducting magnet system of the present invention provides 80 °+80 ° vertical wide-angle room temperature optical windows (its splitting seam room temperature width is 10mm) and tests the sample horizontal room temperature aperture of 40mm used for inserting, can run under 4.5K liquid helium temperature, the central magnetic field intensity that 0-10T is adjustable can be provided;
Superconducting magnet system of the present invention adopts the superconducting coil of multipair separation to combining, and its superconductor is respectively NbTi/Cu and Nb
3sn, and by adopt separate type combine coil rack development, NbTi/Cu and Nb
3sn is close to be realized around key technologies such as the joint production process between separate winding manufacture craft and each strand;
Superconducting magnet system of the present invention can realize the 1cmDSV internal magnetic field uniformity be better than ± 0.7%, can be the strong magnetic field circumstance that X-ray diffraction measurement mechanism provides high-quality, there is long operation with closed ring simultaneously and the advantage such as operating cost is cheap, compact conformation and reliable and stable, can realize liquid helium zero evaporation.
Accompanying drawing illustrates:
The magnet skeleton schematic diagram that Fig. 1 (a) is superconducting magnet system in the present invention.
The B direction view that Fig. 1 (b) is Fig. 1 (a).
The A-A view that Fig. 1 (c) is Fig. 1 (a).
Fig. 2 is the C portion mounting structure schematic three dimensional views of Fig. 1.
Fig. 3 is the winding body partial schematic diagram of superconducting magnet system in the present invention.
Fig. 4 (a) is overall space configuration schematic diagram of the present invention.
Fig. 4 (b) is overall plan view of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further:
A kind of superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided, include superconducting magnet part and cryogenic system part, superconducting magnet part adopts the superconducting coil of multipair separation to combine, the right skeleton of superconducting coil adopts two groups of separate type textural associations to form, be provided with the space for installing 80 °+80 ° vertical wide-angle room temperature optical windows in the middle of skeleton and test sample horizontal room temperature aperture used for inserting, can run under 4.5K liquid helium temperature, the central magnetic field intensity that 0-10T is adjustable can be provided.
Superconducting magnet part: as shown in Figure 1, the agent structure of the skeleton that superconducting coil is right mainly comprises two the NbTi/Cu magnet winding skeletons 1 and 2 in left and right and two, left and right Nb
3sn magnet winding skeleton 3 and 4.The winding framework material of all superconducting coils is all adopted as 316LN low-temperature high-strength magnetism-free stainless steel, two, left and right NbTi/Cu magnet winding skeleton 1 and 2 adopts and is separated combining structure, centre provides enough spaces for 80 °+80 ° vertical wide angle optical room temperature windows, often organizes NbTi/Cu magnet winding skeleton 1,2 or Nb
3sn magnet winding skeleton 3,4 comprises two symmetrical skeleton structures respectively, each skeleton structure includes interior plate 8, outer panel 9 and the middle coil axes 10 connecting interior plate 8, outer panel 9, two pairs of NbTi/Cu coil windings are on the coil axes 10 of two skeleton structures of same group of NbTi/Cu magnet winding skeleton, NbTi/Cu coil, outer NbTi/Cu coil in forming, Nb
3sn coil winding is at Nb
3on the coil axes 10 of two skeleton structures of Sn magnet winding skeleton; Nb
3the skeleton structure of Sn magnet winding skeleton 3,4 is embedded in the skeleton structure of NbTi/Cu magnet winding skeleton 1,2; The madial wall of the interior plate 8 of two skeleton structures of described NbTi/Cu magnet winding skeleton 1,2 is provided with dismountable mounting structure 7.Mounting structure 7 includes multiple mounting blocks 11, each mounting blocks 11 is fixed on described interior plate 8, mounting blocks 11 on two interior plates 8 adopts three 12mm length to position with spacing for 100mm junction of the edges of two sheets of paper pin 5, and utilizes 12 M12 screw soket head cap screws 6 to carry out fastening, as shown in Figure 2.In order to overcome the axial Lorentz force mutually compressed suffered by the winding of superconducting magnet in separate winding: the thickness increasing each magnet skeleton interior plate on the one hand as much as possible, on the other hand two, left and right NbTi/Cu magnet winding skeleton 1 with 2 on adopt mounting structure 7 to be connected two NbTi/Cu magnet winding skeletons 1 and 2, its part power is transferred on the outer panel 9 of NbTi/Cu magnet winding skeleton 2 by NbTi/Cu magnet winding skeleton 1.In addition, Nb
3sn magnet winding skeleton 3,4 is mounted in NbTi/Cu magnet winding skeleton 1,2, so that install and change.Because whole magnet is respectively by Nb
3sn and NbTi/Cu superconducting coil is to combining, and in order to ensure the quality in magnetic field, each skeleton size of magnet and positional precision and assembly precision require higher.
Cryogenic system part: as shown in Figure 4, comprising: the cross-tie 15 of cooled cryostat 12, protective shield of radiation 13, liquid helium collecting chamber (containing after-condenser) 14, main magnet little liquid helium room, the side suspension rod 16 of main magnet little liquid helium room, G-M refrigeration machine 17, liquid helium collecting chamber suspension rod 18, protective shield of radiation suspension rod 19 and the little liquid helium room 20 of main magnet.
Superconducting main magnet room temperature aperture of the present invention is 40mm, and the room temperature transverse slot that requirement provides 10mm wide.Superconducting magnet part 21 is arranged in the little liquid helium room 20 of main magnet, superconducting magnet part 21 weight is 230Kg, and utilizes the magnet skeleton of self cover the closed little liquid helium room 20 of main magnet, two, 2mm thick 316LN corrosion resistant plate formation left and right outward and adopt conduit to be communicated with.Liquid helium collecting chamber 14 and the little liquid helium room 20 of main magnet are placed in protective shield of radiation 13, the outer surface of protective shield of radiation 13 is connected with cooled cryostat 12 by adjustable protective shield of radiation suspension rod 19, and protective shield of radiation 13 upper surface is connected with the cooling realized protective shield of radiation 13 with the one-level cold head of G-M refrigeration machine 17; Main magnet little liquid helium room 20(is containing superconducting magnet part 21) be connected with cooled cryostat 12 through protective shield of radiation 13 by cross-tie 15, the external structure by cooled cryostat 12 realizes the adjustment of lateral attitude, main magnet little liquid helium room 20;
Whole main magnet little liquid helium room 20(is containing superconducting magnet part 21) one end is lifted on a load-bearing flange of protective shield of radiation 13 by side suspension rod 16, the other end carries out point cantact by spacing thermal insulation support column through protective shield of radiation 13 and cooled cryostat 12, to support the little liquid helium room of whole main magnet, 20(is containing superconducting magnet part 21) weight.The 4.2K secondary cold head of GM refrigeration machine 17 direct connection with liquid helium after-condenser inserts in liquid helium collecting chamber 14 afterwards, liquid helium collecting chamber 14 adopts conduit to be communicated with the little liquid helium room 20 of main magnet simultaneously, and the bottom first cooling superconducting magnets of two closed little liquid helium rooms 20 of main magnet that the liquid helium of 4.2K cold head condensation is led, automatically can be risen to top cold head by the helium that magnet heats, be realized the cold and hot convection circulation of cooling working medium by liquid helium after-condenser.Whole superconducting magnet system obtains stable support by mounting bracket.Protective shield of radiation 13 outer surface wrapping multilayer heat insulation to increase reflectivity, and and form between cooled cryostat 12 be with vacuum interlayer thermal insulation Dewar structure.Cooled cryostat 12 upper surface has aspirating hole to obtain vacuum, the high temperature current feed simultaneously leaving infusion port for subsequent use and insertion a pair 150A is powered to superconducting magnet, is provided with quench explosion valve in addition with release pressure.
The manufacture method of superconducting coil: Figure 3 shows that a kind of winding body part that the superconducting magnet system of X ray total scattering device high-intensity magnetic field condition is provided.The winding of this superconducting magnet forms the superconducting coil be separated by three, and outside two pairs of coils (A and B) are NbTi/Cu densely packed coil and on coiling same NbTi/Cu magnet winding skeleton, and interior a pair coil (C) is Nb
3sn densely packed coil is also wound on Nb
3on Sn magnet winding skeleton, utilize the superconduct of CD-150A/10V source-series power supply 114.62A will provide 10T central magnetic field.
It is specifically implemented: (1) A coil is of a size of monolateral winding: inside radius 166mm, outer radius 205mm, length 120mm; Adopt the NbTi/Cu rectangular lines of single 1.08mm × 0.68mm carry out close around, altogether coiling 50 layers, total number of turns is 10000, and length is 11485m.B coil is of a size of monolateral winding: inside radius 113mm, outer radius 165mm, length 120mm; Adopt the NbTi/Cu rectangular lines of single 1.28mm × 0.83mm carry out close around, altogether coiling 62 layers, total number of turns is 11446, and length is 10015m.Outside A and B two NbTi/Cu densely packed coils, to when passing to 114.62A operating current, provide 6.84T central magnetic field, wherein: A coil is to contribution 3.39T, and on its winding, most highfield is 3.42T; B coil is to contribution 3.45T, and on its winding, most highfield is 7.77T.Inner C coil is of a size of monolateral winding: inside radius 49mm, outer radius 100mm, length 110mm; Adopt the RRPNb of single 0.81mm
3sn Superconducting Strand carries out that close total number of turns is 10400, and length is 4870m, when passing to 114.62A operating current, provides 3.16T central magnetic field around, altogether coiling 52 layers, and on its winding, most highfield is 11.98T.The running current of each coil in three pairs of superconducting coils is less than 50% with the ratio of the critical current under its most highfield.A, B and C coil to monolateral winding adopt tension coil-winding machine carry out close around, the tension force provided is respectively 8kg/mm
2, 10kg/mm
2and 8kg/mm
2.A and B coil adopts same skeleton to carry out continuous coiling to monolateral winding, all rectangle superconducting lines all scribble the thick Formvar insulating material for 0.04mm as turn-to-turn insulation, interlayer places the thick polyalkylene imine film (paving) of 0.05mm as layer insulation, the inner surface of skeleton posts the thick epoxy insulation thin plate of 0.1mm as insulation against ground, and after coiling completes, utilization is with 25kg/mm
2the stainless steel steel wire of 0.8mm of tension force tie up.C coil to monolateral winding continuous coiling on another skeleton, its Nb
3high strength glass silk (e-glass) band after Sn strand adopts destarch process (0.007 " × 0.25 ") 10% stacked package is woven into and is less than the thick insulating sleeve of 0.3mm to form turn-to-turn insulation, and the inner surface of skeleton sprays Al
2o
3coating material is to form insulation against ground layer, and after same coiling completes, utilization is with 25kg/mm
2the stainless steel steel wire of 0.6mm of tension force tie up, after according to RRPNb
3the heat treating regime of Sn strand carries out vacuum heat, and again to the Nb after heat treatment
3sn superconducting coil carries out vacuum epoxy pressure impregnation PROCESS FOR TREATMENT to form integral rigidity structure.C coil after having manufactured inserts A and B coil in the skeleton of monolateral winding to monolateral winding, connects to form entirety with the screw of 20 M6.After two A, B and C coils complete monolateral winding combination, utilize skeleton to be separated combination anatomical connectivity and form complete superconducting magnet winding.
(2) all A, B and C coils carry out cascade connection to the introduction line of winding and lead-out wire, and adopt two specifications to be that the NbTi/Cu rectangular lines of 1.5mm × 0.75mm carries out drawing entry/exit as terminal lead, have 7 superconducting joints like this, wherein 2 is Nb
3joint between Sn strand and NbTi/Cu rectangular lines, the joint between 5 NbTi/Cu rectangular lines.Nb
3low resistance joint production process between Sn strand and NbTi/Cu rectangular lines: after C coil completes winding technique, by Nb
3sn strand is inserted in insulating ceramics pipe, and overall press-in is placed in the stainless steel strip groove that skeleton outer surface welds and fixes; C coil removes insulating ceramics pipe and stainless steel strip after completing winding vacuum heat, changes rectangle anaerobic copper bar (copper bar having the groove of wide 3mm), with hydrochloric acid by Nb
3sn strand surface clean is clean, then is removed by copper surface oxide layer with nitric acid, until copper bar surface is shinny; Same method is by clean for NbTi/Cu rectangular lines surface clean; Finally by NbTi/Cu rectangular lines and Nb
3sn strand puts into the groove of rectangle anaerobic copper bar, adopts Wood's metal to carry out welding to form low resistance joint.Joint production process between NbTi/Cu rectangular lines: copper corrosion is fallen by two NbTi/Cu rectangular lines nitric acid, the length eroded is 30cm--100cm, after by woven for the superconducting filament corroded, put into manufactured height and lead copper sheathing, with the Wood's metal of fusing, this is filled, after cooling, just form low resistance joint.
(3) whole coil windings adopts parallel way to connect a superconducting switch and two diodes (forward is with reverse), places low place together with part superconducting joint.Here: adopt forward and reverse two diodes carrying out pressure limiting in parallel to be mainly used in the quench protection of superconducting magnet, and fault offset after coil quench is dissipated in whole superconducting coil, to ensure the fail safe of coil.
Claims (10)
1. one kind provides the superconducting magnet system of X ray total scattering device high-intensity magnetic field condition, include superconducting magnet part and cryogenic system part, it is characterized in that: described superconducting magnet part adopts the superconducting coil of multipair separation to combine, the right skeleton of superconducting coil adopts two groups of separate type textural associations to form, be provided with the space for installing 80 °+80 ° vertical wide-angle room temperature optical windows in the middle of described skeleton and test sample horizontal room temperature aperture used for inserting, can run under 4.5K liquid helium temperature, and the central magnetic field intensity that 0-10T can be provided adjustable.
2. the superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition according to claim 1, is characterized in that: the superconducting coil of described multipair separation comprises two pairs of NbTi/Cu coils and a pair Nb
3sn coil.
3. the superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition according to claim 2, is characterized in that: described skeleton comprises one group of NbTi/Cu magnet winding skeleton, one group of Nb
3sn magnet winding skeleton, often organizes NbTi/Cu magnet winding skeleton or Nb
3sn magnet winding skeleton comprises two symmetrical skeleton structures respectively, each skeleton structure includes interior plate, outer panel and the middle coil axes connecting interior plate, outer panel, two pairs of NbTi/Cu coil windings are on the coil axes of two skeleton structures of same group of NbTi/Cu magnet winding skeleton, NbTi/Cu coil, outer NbTi/Cu coil in forming, Nb
3sn coil winding is at Nb
3on the coil axes of two skeleton structures of Sn magnet winding skeleton; Described Nb
3the skeleton structure of Sn magnet winding skeleton is embedded in the skeleton structure of NbTi/Cu magnet winding skeleton; The madial wall of the interior plate of two skeleton structures of described NbTi/Cu magnet winding skeleton is provided with dismountable mounting structure.
4. a kind of superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided according to claim 3, it is characterized in that: described mounting structure includes multiple mounting blocks, each mounting blocks is fixed on described interior plate, mounting blocks on two interior plates adopts three 12mm length to position with spacing for 100mm junction of the edges of two sheets of paper pin, and utilizes 12 M12 screw soket head cap screws to carry out fastening.
5. the superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided according to claim 1, it is characterized in that: arrange in the middle of described skeleton for 80 °+80 ° vertical wide-angle room temperature optical windows are installed space in 80 °+80 ° vertical wide-angle room temperature optical windows are installed, its splitting seam room temperature width is 10mm.
6. the superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition according to claim 1, is characterized in that: the described horizontal room temperature aperture for inserting test sample used is of a size of 40mm.
7. the superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition according to claim 3 or 4, is characterized in that: described outer NbTi/Cu coil to providing 6.84T central magnetic field, the Nb of interpolation
3sn coil is to providing 3.16T central magnetic field.
8. the superconducting magnet system providing X ray total scattering device high-intensity magnetic field condition according to claim 7, is characterized in that: the whole coil windings of described superconducting magnet part adopts parallel way to connect a superconducting switch and two diodes, two diode poles on the contrary.
9. the superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided according to claim 1, it is characterized in that: described cryogenic system part includes cooled cryostat, protective shield of radiation, liquid helium collecting chamber, G-M refrigeration machine 7, the little liquid helium room of main magnet, described superconducting magnet part is arranged on the little liquid helium room of main magnet, liquid helium collecting chamber and the little liquid helium room of main magnet are placed in protective shield of radiation, the outer surface of protective shield of radiation is connected with cooled cryostat by adjustable suspension rod, protective shield of radiation upper surface is connected with the cooling realized protective shield of radiation with the one-level cold head of G-M refrigeration machine, the little liquid helium room of main magnet is connected with cooled cryostat through protective shield of radiation by cross-tie, and one end of main magnet little liquid helium room is lifted on a load-bearing flange of protective shield of radiation, the other end by side suspension rod and passes protective shield of radiation by spacing thermal insulation support column and cooled cryostat carries out point cantact, the 4.2K secondary cold head of GM refrigeration machine 7 direct connection with liquid helium after-condenser inserts in liquid helium collecting chamber afterwards, and liquid helium collecting chamber adopts conduit to be communicated with the little liquid helium room of main magnet simultaneously.
10. the superconducting magnet system that X ray total scattering device high-intensity magnetic field condition is provided according to claim 9, it is characterized in that: described cooled cryostat upper surface has aspirating hole to obtain vacuum, the high temperature current feed simultaneously leaving infusion port for subsequent use and insertion a pair 150A is powered to superconducting magnet part, is also provided with quench explosion valve with release pressure.
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| CN110895986A (en) * | 2019-12-06 | 2020-03-20 | 中国科学院合肥物质科学研究院 | Low-resistance niobium three-tin superconducting wire joint and manufacturing method thereof |
| CN112712959A (en) * | 2020-12-22 | 2021-04-27 | 中国科学院合肥物质科学研究院 | Liquid helium soaking type large-aperture experiment type close-wound high-field composite superconducting magnet |
| CN114563592A (en) * | 2022-01-26 | 2022-05-31 | 西北核技术研究所 | Particle speed electromagnetic measurement device based on superconducting magnet |
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2016
- 2016-01-05 CN CN201610013915.5A patent/CN105469927A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110895986A (en) * | 2019-12-06 | 2020-03-20 | 中国科学院合肥物质科学研究院 | Low-resistance niobium three-tin superconducting wire joint and manufacturing method thereof |
| CN112712959A (en) * | 2020-12-22 | 2021-04-27 | 中国科学院合肥物质科学研究院 | Liquid helium soaking type large-aperture experiment type close-wound high-field composite superconducting magnet |
| CN112712959B (en) * | 2020-12-22 | 2022-08-16 | 中国科学院合肥物质科学研究院 | Liquid helium soaking type large-aperture experiment type close-wound high-field composite superconducting magnet |
| CN114563592A (en) * | 2022-01-26 | 2022-05-31 | 西北核技术研究所 | Particle speed electromagnetic measurement device based on superconducting magnet |
| CN114563592B (en) * | 2022-01-26 | 2023-07-21 | 西北核技术研究所 | Particle speed electromagnetic measuring device based on superconducting magnet |
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