CN105676345A - Glass wrapping layer scintillating fiber and preparation method thereof - Google Patents

Glass wrapping layer scintillating fiber and preparation method thereof Download PDF

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Publication number
CN105676345A
CN105676345A CN201610210144.9A CN201610210144A CN105676345A CN 105676345 A CN105676345 A CN 105676345A CN 201610210144 A CN201610210144 A CN 201610210144A CN 105676345 A CN105676345 A CN 105676345A
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glass
preparation
fiber
scintillating
scintillating fiber
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CN201610210144.9A
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CN105676345B (en
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姜本学
陈水林
张攀德
姜益光
张龙
毛小健
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Shanghai Institute of Optics and Fine Mechanics of CAS
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Shanghai Institute of Optics and Fine Mechanics of CAS
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01—Manufacture of glass fibres or filaments
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/045—Silica-containing oxide glass compositions
    • C03C13/046—Multicomponent glass compositions
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/062—Glass compositions containing silica with less than 40% silica by weight
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00—Compositions for glass with special properties
    • C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)

Abstract

The invention provides a glass wrapping layer scintillating fiber and a preparation method thereof, belongs to preparation and application of a novel scintillating fiber, and relates to the field of preparation and application of a scintillating material. An outer wrapping layer of the scintillating fiber adopts a low-Si-content glass material, so that fiber core Si-atom permeation amount is effectively reduced in the drawing process, and meanwhile, drawing of small-size fibers of tens of microns can be met. The preparation method of the scintillating fiber comprises the steps of perform preparation, fiber drawing and heat treatment. The scintillating fiber has the advantages of high optical performance, fast attenuation, high density and low cost, and can be applied to the fields of modern nuclear detection and medical science space imaging equipment and the like.

Description

A kind of glass-clad flash fiber and preparation method thereof
Technical field
The invention belongs to novel flash fiber, particularly a kind of glass-clad flash fiber and preparation method thereof.
Background technology
Scintillation material be a kind of absorb high energy particle after send the optical function material of visible ray, black light, be widely used in fields such as high-energy physics, nuclear physics, astrophysics, geophysics, medical imaging, industrial flaw detection and safety detection in the last few years. Scintillation material is as optical sensor material topmost in radiation detecting system, and its research receives much concern. When scintillation material and radiation occur to interact, valence link or the change of electron hole pair in its material make it produce photon, and these photons can be used to quantify energy or the dosage of radiation, it is achieved electromagnetism interference, passive, safe and reliable radiation sensing. Compared with traditional scintillation material, flash fiber, as new scintillation material, has become as the very promising material of one with himself excellent feature, if realizing at a distance, monitor in real time, can work in the presence of a harsh environment, for the resistance of electromagnetic interference, small size, lightweight etc.
At present, the research of flash fiber, achieved with certain achievement, such as tentatively realizes commercialization for radiotherapeutic polymethyl methacrylate (PMMA) optical fiber. But plastic optical fiber is limited due to material own, have radiation absorption limited, easily aging, cannot in hot environment the shortcoming such as application. Although and quartz flash fiber has better capability of resistance to radiation, can at high temperature use, but its relatively low photoyield limits its application.
In order to overcome the shortcoming of polymer plastic optical fiber and silica fibre, FibercrystSAS and the Instituted of France proposes the method adopting micro-descent method for growing YAG crystal optical fibre, it is achieved that crystal optical fibre application in optical-fiber laser or optical-fibre communications material. Domestic Shanghai University it is also proposed a kind of YAG crystal-pulling light method for fiber based on silicon dioxide covering. But, due to the restriction by the performance of monocrystal material own and drawing process, draw the fibre diameter obtained relatively big, reach several millimeter, it is impossible to meet the requirement of high pixel imaging size. Secondly, being coated on the silicon dioxide layer of single-crystal surface in crystal-pulling optical fiber easily and the silica fibre welding of standard, in pulling process, the silicon atom in covering inevitably penetrates in monocrystalline, causes that the photoyield of single crystal fiber reduces. Therefore, the flash fiber how drawing out the high light yield of small-diameter sized is to realize one of flash fiber application problem needing solution badly. The present invention proposes using the low clad material containing Si yttrium lead glass material replacement silicon dioxide as drawing scintillation crystal optical fiber, low low containing Si constituent content in Si yttrium lead glass material relative to silicon dioxide covering, Y, Al element is a part for fibre core host material, this makes Si infiltration amount of fibre in pulling process effectively be reduced, diameter can be drawn at tens microns to the hundreds of micron optical fiber not waited simultaneously, meet the different demands of imaging, it is achieved the requirement such as high light yield, fast decay.
Summary of the invention
The technical problem to be solved is based on the problem that when silicon dioxide covering draws crystal optical fibre, Si infiltration causes greatly photoyield to reduce and adopt micro-descent method drawing optical fiber diameter excessive, proposition one employing is low draws scintillation crystal optical fiber containing Si yttrium lead glass material as covering, the Si infiltration capacity effectively reduced in pulling process in optical fiber, adopts the method can draw out tens microns of optical fiber not waited to hundreds of micron simultaneously.
The technical solution of the present invention is as follows:
A kind of glass-clad flash fiber and preparation method thereof, is characterized in that the method comprises the following steps:
<1>prepared by preform: be RE by component0.1:(A1-mBm)3(C1-nDn)5O12Crystalline material cuts into cylindrical bar; Covering component is xSiO2yY2O3zAl2O3Glass tubing internal diameter and crystalline material rod outside diameter match, and glass tubing one end is undertaken receiving rod and being drawn as taper by MCVD lathe, forms preform;
<2>prepared by optical fiber: preform being put into graphite furnace wire-drawer-tower and carries out wire drawing, operating process is as follows: be inserted in graphite furnace by one end that taper is sealed, heating, wire drawing;
<3>optical fiber heat treatment: be placed in Muffle furnace by the optical fiber of drawing and do heat treatment, is incubated a period of time.
Described fibre core has garnet structure formula, its component RE0.1:(A1-mBm)3(C1-nDn)5O12. Wherein A is selected from Lu or Gd; B is selected from Y; C is selected from Ga; D is selected from Al; RE is Yb3+,Ce3+Or Pr3+, and m range for 0～1; N ranges for 0～1.
Described cladding glass material component xSiO2yY2O3zAl2O3. Wherein x is 0.2～0.4; Y is 0.225～0.3; Z is 0.375～0.5.
Compared with prior art, the invention has the beneficial effects as follows: the light fibrillation of scintillation material and inorganization, using the low clad material containing Si yttrium lead glass material as drawing scintillation crystal optical fiber so that in pulling process, fibre core Si content drops to and adopts the 20% of silicon dioxide covering. Adopt garnet crystalline material can improve photoyield output as core material, improve energy resolution and high-selenium corn ray energy. Diameter can be drawn at tens microns to the hundreds of micron optical fiber not waited simultaneously, meet different imaging demand, it is achieved the requirement such as high light yield, fast decay.
Accompanying drawing explanation
Fig. 1 is the scintillation crystal preform front view of the present invention
Fig. 2 is the scintillation crystal preform side view of the present invention
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but should not limit scope with this.
Embodiment 1:(m=0, n=0, x=0.2, y=0.3, z=0.5), A is Gd, RE is Ce3+, cladding glass material component 0.2SiO20.3Y2O30.5Al2O3, fibre core has garnet structure, its component Ce0.1:Y3Al5O12. Ce ion doping garnet structure crystalline material is prepared cylindrical ceramic rod, and cladding glass bore and crystalline material external diameter match. One end of glass tubing is undertaken receiving rod and being drawn as taper by MCVD lathe, forms preform (as shown in Figure 1), preform is put into graphite furnace wire-drawer-tower and carries out wire drawing. Operating process is as follows: be inserted in graphite furnace by one end that taper is sealed, heating, wire drawing. The optical fiber of drawing is placed in Muffle furnace and does heat treatment, be incubated a period of time.
Embodiment 2:(m=1, n=1, x=0.4, y=0.225, z=0.375), A is Gd, RE is Pr3+, cladding glass material component 0.4SiO20.225Y2O30.375Al2O3, fibre core has garnet structure, its component Pr0.1:Y3Al5O12. Pr ion doping garnet structure crystalline state is prepared cylindrical bar, and cladding glass bore and crystalline material external diameter match.Glass tubing one end is undertaken receiving rod and being drawn as taper by MCVD lathe, forms preform (as shown in Figure 1), preform is put into graphite furnace wire-drawer-tower and carries out wire drawing. Operating process is as follows: be inserted in graphite furnace by one end that taper is sealed, heating, wire drawing. The optical fiber of drawing is placed in Muffle furnace and does heat treatment, be incubated a period of time.
Embodiment 3:(m=2/3, n=3/5, x=0.4, y=0.225, z=0.375), A is Gd, RE is Yb3+, cladding glass material component 0.4SiO20.225Y2O30.375Al2O3, fibre core has garnet structure, its component Yb0.1:Gd1Y2Ga2Al3O12. Yb ion doping garnet structure crystalline material is prepared cylindrical bar, and cladding glass bore and crystalline material external diameter match. Glass tubing one end is undertaken receiving rod and being drawn as taper by MCVD lathe, forms preform (as shown in Figure 1), preform is put into graphite furnace wire-drawer-tower and carries out wire drawing. Operating process is as follows: be inserted in graphite furnace by one end that taper is sealed, heating, wire drawing. The optical fiber of drawing is placed in Muffle furnace and does heat treatment, be incubated a period of time.
The wavelength of fluorescence that the flash fiber that embodiments of the invention 1 draw sends is in 500-650nm scope, and the strongest emission peak is positioned at and lays respectively at 550nm, scintillation decay time 55ns, it is possible to compare favourably with scintillation crystal. The flash fiber photoyield that embodiments of the invention 2 draw is 9000ph/Mev, reaches 10 times of glass optical fiber. It is 10um flash fiber that this technique can draw core diameter, effectively raises spatial resolution, makes spatial resolution arrive 20lp/mm, is better than other fiber optic materials existing.

Claims (3)

1. a glass-clad flash fiber, including fibre core and covering, it is characterised in that: described fibre core has garnet structure formula, and component is RE0.1:(A1-mBm)3(C1-nDn)5O12, wherein A is Lu or Gd; B is Y; C is Ga; D is Al; RE is Yb3+、Ce3+Or Pr3+, and m range for 0～1; N ranges for 0～1.
2. glass-clad flash fiber according to claim 1, it is characterised in that: the component of described surrounding layer glass material is xSiO2yY2O3zAl2O3, wherein x is 0.2～0.4; Y is 0.225～0.3; Z is 0.375～0.5.
3. the preparation method of glass-clad flash fiber according to claim 1, it is characterised in that: the method comprises the following steps:
<1>it is RE by component0.1:(A1-mBm)3(C1-nDn)5O12Crystalline material cuts into cylindrical bar; Covering is xSiO2yY2O3zAl2O3Glass tubing internal diameter and crystalline material rod outside diameter match, and glass tubing one end is undertaken receiving rod and being drawn as taper by MCVD lathe, forms preform;
<2>preform is put into graphite furnace wire-drawer-tower and carry out wire drawing. Operating process is as follows: be inserted in graphite furnace by one end that taper is sealed, heating, wire drawing.
<3>optical fiber of drawing is placed in Muffle furnace and carries out heat treatment, be incubated a period of time.
CN201610210144.9A 2016-04-06 2016-04-06 A kind of glass-clad flash fiber and preparation method thereof Active CN105676345B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109052973A (en) * 2018-09-04 2018-12-21 同济大学 A kind of rare earth ion doped silicate fibers and preparation method thereof
CN110734228A (en) * 2019-11-21 2020-01-31 北方工业大学 tellurate doped scintillating fibers and preparation method thereof
CN111302643A (en) * 2020-03-06 2020-06-19 中国工程物理研究院材料研究所 Glass optical fiber for neutron detection, scintillation material and preparation method thereof
CN111913208A (en) * 2020-06-05 2020-11-10 华南理工大学 Scintillation fiber probe prepared by fiber core fusion method, scintillation fiber device and method

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US4788436A (en) * 1986-12-24 1988-11-29 Walter Koechner Radiation sensitive optical fiber and detector
US20040252940A1 (en) * 2003-06-16 2004-12-16 Robert Atac Fiber optic light source for display devices
CN104466633A (en) * 2014-11-20 2015-03-25 天津大学 High-power optical fiber laser device based on single crystal optical fiber
CN105242349A (en) * 2015-10-31 2016-01-13 西南技术物理研究所 Scintillation fiber array detection assembly

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US4788436A (en) * 1986-12-24 1988-11-29 Walter Koechner Radiation sensitive optical fiber and detector
US20040252940A1 (en) * 2003-06-16 2004-12-16 Robert Atac Fiber optic light source for display devices
CN104466633A (en) * 2014-11-20 2015-03-25 天津大学 High-power optical fiber laser device based on single crystal optical fiber
CN105242349A (en) * 2015-10-31 2016-01-13 西南技术物理研究所 Scintillation fiber array detection assembly

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SHUQI QIAO 等: "Spectral properties and laser performance of Nd:Lu3Al5O12 ceramic", 《CHINESE OPTICS LETTERS》 *
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109052973A (en) * 2018-09-04 2018-12-21 同济大学 A kind of rare earth ion doped silicate fibers and preparation method thereof
CN109052973B (en) * 2018-09-04 2021-09-03 同济大学 Rare earth ion doped silicate optical fiber and preparation method thereof
CN110734228A (en) * 2019-11-21 2020-01-31 北方工业大学 tellurate doped scintillating fibers and preparation method thereof
CN110734228B (en) * 2019-11-21 2021-11-30 北方工业大学 Tellurate doped scintillation fiber and preparation method thereof
CN111302643A (en) * 2020-03-06 2020-06-19 中国工程物理研究院材料研究所 Glass optical fiber for neutron detection, scintillation material and preparation method thereof
CN111913208A (en) * 2020-06-05 2020-11-10 华南理工大学 Scintillation fiber probe prepared by fiber core fusion method, scintillation fiber device and method
CN111913208B (en) * 2020-06-05 2024-02-13 华南理工大学 Scintillation fiber probe prepared by fiber core melting method, scintillation fiber device and method

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