CN201653941U - X-ray spectrometer and mineral composition analyzer - Google Patents
X-ray spectrometer and mineral composition analyzer Download PDFInfo
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- CN201653941U CN201653941U CN2010201325421U CN201020132542U CN201653941U CN 201653941 U CN201653941 U CN 201653941U CN 2010201325421 U CN2010201325421 U CN 2010201325421U CN 201020132542 U CN201020132542 U CN 201020132542U CN 201653941 U CN201653941 U CN 201653941U
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- optical splitter
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- beryllium sheet
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Abstract
The utility model provides an X ray optical splitter and mineral composition analysis appearance belongs to optical measurement technical field. This beam splitter includes: the spectrometer comprises a spectrometer shell, a crystal retainer, a curved surface spectrometer crystal, an incident beryllium sheet window, an emergent beryllium sheet window, an incident adjusting window and an emergent slit part; the curved surface light splitting crystal and the crystal holder are both arranged in the light splitter shell, and the curved surface light splitting crystal is fixedly arranged on the crystal holder; the incident beryllium sheet window and the emergent beryllium sheet window are respectively arranged on the optical splitter shells at two sides of the curved surface optical splitter crystal, and the incident beryllium sheet window, the emergent beryllium sheet window and the arc-shaped reflecting surface of the curved surface optical splitter crystal are distributed in a triangular shape; the incident adjusting window is arranged in the incident beryllium sheet window; the exit slit component is arranged on a light path between the curved surface light splitting crystal and the exit beryllium sheet window in the light splitter shell. The spectrometer shortens the X-ray transmission distance, reduces the absorption of X-rays by air in transmission, and can improve the resolution and the measurement precision of a mineral composition analyzer.
Description
Technical field
The utility model relates to field of optical measuring technologies, especially relates to a kind of X ray optical splitter and mineralogical composition analyser.
Background technology
The mineralogical composition analyser is divided into two kinds on Wavelength dispersion type and energy dispersion type, and its key distinction is whether the X ray optical splitter is arranged.Wavelength dispersion type mineralogical composition analyser with X ray optical splitter has many advantages than the energy dispersive instrument, and for example its resolution height, measuring accuracy are high.Therefore mineralogical composition analyser at present commonly used is a Wavelength dispersion type, and the analyzing crystal in the Wavelength dispersion type mineralogical composition analyser commonly used is a planar structure, the application but present known curved crystals optical splitter is not also achieved success on the mineralogical composition analyser, its main cause is that the design of curved surface analyzing crystal light path system is complicated, need incident to adjust complicated light channel structures such as passage, outgoing adjustment passage, optical path length needs vaccum-pumping equipment to reduce the loss that X ray causes owing to absorption of air in the light path communication process.These reasons have caused the curved crystals optical splitter can not be used on the mineralogical composition analyser.
The utility model content
In view of above-mentioned existing in prior technology problem, the purpose of the utility model embodiment provides a kind of X ray optical splitter and mineralogical composition analyser, its compact conformation, and light path is simple, do not need vaccum-pumping equipment to vacuumize, can be used in the flow process industry on the mineral analytical instrument.
The purpose of this utility model is achieved through the following technical solutions:
The utility model embodiment provides a kind of X ray optical splitter, comprising:
Window and exit slit parts are adjusted in optical splitter shell, crystal retainer, curved surface analyzing crystal, incident beryllium sheet window, outgoing beryllium sheet window, incident;
Described curved surface analyzing crystal and crystal retainer all are arranged in the optical splitter shell, and described curved surface analyzing crystal is fixedly installed on the crystal retainer;
Described incident beryllium sheet window and outgoing beryllium sheet window are separately positioned on the optical splitter shell of curved surface analyzing crystal both sides, distribution triangular in shape between the curved reflecting surface of described incident beryllium sheet window, outgoing beryllium sheet window and curved surface analyzing crystal;
Described incident is adjusted window and is arranged in the incident beryllium sheet window;
Described exit slit parts are arranged on optical splitter shell interior the curved surface analyzing crystal and the light path between the outgoing beryllium sheet window.
Described incident beryllium sheet window is made of round beryllium sheet and incident through hole, and described incident through hole is arranged on the sidewall of optical splitter shell, and described round beryllium sheet mounts on the inlet that covers the incident through hole;
Described outgoing beryllium sheet window is made of square beryllium sheet and outgoing through hole, and described outgoing through hole is arranged on the opposite side sidewall of optical splitter shell, and described square beryllium sheet mounts in the outlet that covers the outgoing through hole.
Described round beryllium sheet is that diameter is that 15mm, thickness are the round beryllium sheet of 0.3mm.
Described square beryllium sheet is the rectangle beryllium sheet of long 27.2mm * wide 19.2mm * thick 0.3mm.
It is cylindrical structure that window is adjusted in described incident, which is provided with the incident through hole, and window is adjusted in described incident can be at inboard angle and the dosage of adjusting the X ray after entering incident beryllium sheet window that rotates of incident beryllium sheet window.
Described curved surface analyzing crystal adopts the curved surface analyzing crystal of log spiral type.
It is the lithium fluoride crystal of 2d=0.402 that described curved surface analyzing crystal adopts spacing of lattice.
Described exit slit parts are platy structure, which is provided with through hole.
Described optical splitter shell is the hexagon diamond structure.
The utility model embodiment also provides a kind of mineralogical composition analyser, comprising: X-ray tube, high-voltage power supply, characteristic X-ray detecting device and signal processing unit also comprise:
The X ray optical splitter, described X ray optical splitter adopts above-mentioned each described X ray optical splitter, described X ray optical splitter is arranged between X-ray tube and the characteristic X-ray detecting device, and a kind of of characteristic X-ray who is used for multiple metallic element that X-ray tube is inspired separates.
From the technical scheme that above-mentioned the utility model embodiment provides as can be seen, cooperate with the curved surface analyzing crystal that fixedly installs by incident adjustment window being set in incident beryllium sheet window and outgoing slot set part being set on emitting light path among the utility model embodiment, form a kind of X ray optical splitter simple and compact for structure.Adjust in incident under the focussing force of cooperating of window and exit slit assembly and curved surface analyzing crystal, make the propagation distance of X ray in this optical splitter shorten greatly, thereby X ray is reduced in communication process by the amount of absorption of air, spectroscopical effeciency can be greatly improved, and optical splitter is used become possibility under situation about not vacuumizing.Therefore, this optical splitter can be applied on the mineralogical composition analyser easily.
Description of drawings
The structural representation of the optical splitter that Fig. 1 provides for the utility model embodiment;
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment one
Present embodiment one provides a kind of X ray optical splitter, and this optical splitter can be used on the mineralogical composition analyser, and as shown in Figure 1, this optical splitter comprises:
Wherein, described curved surface analyzing crystal 3 and crystal retainer 2 all are arranged in the optical splitter shell 1, and optical splitter shell 1 is the hexagon diamond structure, and described curved surface analyzing crystal 3 is fixedly installed on the crystal retainer 2;
Described incident beryllium sheet window 4 and outgoing beryllium sheet window 5 are separately positioned on optical splitter shell 1 sidewall of curved surface analyzing crystal 3 both sides, distribution triangular in shape between the curved reflecting surface of described incident beryllium sheet window 4, outgoing beryllium sheet window 5 and curved surface analyzing crystal 4; Wherein, described incident beryllium sheet window is made of round beryllium sheet and incident through hole, described incident through hole is arranged on the sidewall of optical splitter shell 1, and described round beryllium sheet mounts on the inlet that covers the incident through hole, and it is that 15mm, thickness are the round beryllium sheet of 0.3mm that described round beryllium sheet generally adopts diameter; And outgoing beryllium sheet window is made of square beryllium sheet and outgoing through hole, described outgoing through hole is arranged on the opposite side sidewall of optical splitter shell 1, described square beryllium sheet mounts in the outlet that covers the outgoing through hole, square beryllium sheet generally adopts rectangle beryllium sheet, as adopting the rectangle beryllium sheet of long 27.2mm * wide 19.2mm * thick 0.3mm.The setting of this incident beryllium sheet window and outgoing beryllium sheet window, at the round beryllium sheet of incident end setting and the square beryllium sheet of exit end setting, can play carrying out good protection against the tide, dustproof effect in the optical splitter shell 1, thereby avoided the moist influence that the curved surface analyzing crystal is caused with dust, make that also this optical splitter can continue to use under the situation that need not vacuumize, can be because of not the making moist and be subjected to effect of dust of curved surface analyzing crystal, and the precision of this optical splitter and spectroscopical effeciency are descended.
Described incident is adjusted window 6 and is arranged in the incident beryllium sheet window 4; It is spherical structure that window 6 is adjusted in incident, which is provided with the incident through hole, and window 6 is adjusted in described incident can be in the inboard rotation of incident beryllium sheet window, enters the angle and the dosage of X ray of the incident beryllium sheet window 4 of optical splitter with adjustment;
Described exit slit parts 7 are arranged on the curved surface analyzing crystal 3 and the light path between the outgoing beryllium sheet window 5 in the optical splitter shell 1; Exit slit parts 7 are platy structure, which is provided with through hole and are used to make the X ray after 3 reflections of curved surface analyzing crystal to export outgoing beryllium sheet window 5 to.
Curved surface analyzing crystal 3 in the above-mentioned optical splitter can adopt the curved surface analyzing crystal of log spiral type, is lithium fluoride (LiF) crystal of 2d=0.402 as adopting spacing of lattice.
To determining of curved surface analyzing crystal 3 curved surface radians, can adopt following method: carry out beam split as characteristic X-ray,, calculate incident angle θ according to Bragg's law n λ=2dsin θ to a certain element;
With incident angle θ-substitution log spiral equation, according to obtaining corresponding log spiral type curved surface behind the suitable initial value of the size Selection of analyzing crystal shell; Curved surface analyzing crystal and crystal retainer all are processed into the curve form that calculates, and the curved surface analyzing crystal is fixed on the crystal retainer.
The crystal retainer that is fixed with the curved surface analyzing crystal is fixed in the analyzing crystal shell, adjusts the position that window and exit slit assembly are adjusted in incident, after being met the spectrophotometric result of requirement, get final product the crystal retainer is fixing according to the position of light path relation.
When above-mentioned optical splitter uses, X ray is adjusted window via the incident beryllium sheet window on the sidewall on the optical splitter shell through incident and is entered in the optical splitter shell, adjust dosage and the angle that position of window is regulated incident X-rays by rotation incident, the x-ray irradiation that enters is to the curved reflecting surface of curved surface analyzing crystal, after the characteristic X-ray after the analyzing crystal beam split is via the exit slit component intercepts, enter light path system by outgoing beryllium sheet window ejaculation on another sidewall of optical splitter shell.
This optical splitter formation is simply compact, adjust in incident under the focussing force of cooperating of window and exit slit assembly and curved surface analyzing crystal, make the propagation distance of X ray in this optical splitter shorten greatly, thereby X ray is reduced in communication process by the amount of absorption of air, spectroscopical effeciency is greatly improved, and optical splitter is used become possibility under situation about not vacuumizing.
Embodiment two
Present embodiment two provides a kind of mineralogical composition analyser, and this analyser comprises: X-ray tube, high-voltage power supply, characteristic X-ray detecting device and signal processing unit also comprise:
The X ray optical splitter, described X ray optical splitter adopts the X ray optical splitter that provides in the foregoing description one, described X ray optical splitter is arranged between X-ray tube and the characteristic X-ray detecting device, the a kind of of characteristic X-ray that this X ray optical splitter is used for multiple metallic element that X-ray tube is inspired separates, send the characteristic X-ray detecting device to, thereby handle by signal processing unit, finish mineralogical composition and detect.
In sum, cooperate with the curved surface analyzing crystal that fixedly installs by incident adjustment window being set in incident beryllium sheet window and outgoing slot set part being set on emitting light path among the utility model embodiment, form a kind of X ray optical splitter simple and compact for structure.Adjust in incident under the focussing force of cooperating of window and exit slit assembly and curved surface analyzing crystal, make the propagation distance of X ray in this optical splitter shorten greatly, thereby X ray is reduced in communication process by the amount of absorption of air, spectroscopical effeciency is greatly improved, and optical splitter is used become possibility under situation about not vacuumizing.Therefore, this optical splitter can be applied on the mineralogical composition analyser easily.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (10)
1. an X ray optical splitter is characterized in that, comprising:
Window and exit slit parts are adjusted in optical splitter shell, crystal retainer, curved surface analyzing crystal, incident beryllium sheet window, outgoing beryllium sheet window, incident;
Described curved surface analyzing crystal and crystal retainer all are arranged in the optical splitter shell, and described curved surface analyzing crystal is fixedly installed on the crystal retainer;
Described incident beryllium sheet window and outgoing beryllium sheet window are separately positioned on the optical splitter shell of curved surface analyzing crystal both sides, distribution triangular in shape between the curved reflecting surface of described incident beryllium sheet window, outgoing beryllium sheet window and curved surface analyzing crystal;
Described incident is adjusted window and is arranged in the incident beryllium sheet window;
Described exit slit parts are arranged on optical splitter shell interior the curved surface analyzing crystal and the light path between the outgoing beryllium sheet window.
2. X ray optical splitter according to claim 1, it is characterized in that, described incident beryllium sheet window is made of round beryllium sheet and incident through hole, and described incident through hole is arranged on the sidewall of optical splitter shell, and described round beryllium sheet mounts on the inlet that covers the incident through hole;
Described outgoing beryllium sheet window is made of square beryllium sheet and outgoing through hole, and described outgoing through hole is arranged on the opposite side sidewall of optical splitter shell, and described square beryllium sheet mounts in the outlet that covers the outgoing through hole.
3. X ray optical splitter according to claim 2 is characterized in that, described round beryllium sheet is that diameter is that 15mm, thickness are the round beryllium sheet of 0.3mm.
4. X ray optical splitter according to claim 2 is characterized in that, described square beryllium sheet is the rectangle beryllium sheet of long 27.2mm * wide 19.2mm * thick 0.3mm.
5. X ray optical splitter according to claim 1, it is characterized in that, it is cylindrical structure that window is adjusted in described incident, which is provided with the incident through hole, and window is adjusted in described incident can be at inboard angle and the dosage of adjusting the X ray after entering incident beryllium sheet window that rotates of incident beryllium sheet window.
6. X ray optical splitter according to claim 1 is characterized in that, described curved surface analyzing crystal adopts the curved surface analyzing crystal of log spiral type.
7. X ray optical splitter according to claim 6 is characterized in that, it is the lithium fluoride crystal of 2d=0.402 that described curved surface analyzing crystal adopts spacing of lattice.
8. X ray optical splitter according to claim 1 is characterized in that, described exit slit parts are platy structure, which is provided with through hole.
9. X ray optical splitter according to claim 1 is characterized in that, described optical splitter shell is the hexagon diamond structure.
10. mineralogical composition analyser comprises: X-ray tube, high-voltage power supply, characteristic X-ray detecting device and signal processing unit, it is characterized in that, and also comprise:
X ray optical splitter, described X ray optical splitter adopt aforesaid right to require 1～9 each described X ray optical splitter, and described X ray optical splitter is arranged between X-ray tube and the characteristic X-ray detecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201325421U CN201653941U (en) | 2010-03-16 | 2010-03-16 | X-ray spectrometer and mineral composition analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201325421U CN201653941U (en) | 2010-03-16 | 2010-03-16 | X-ray spectrometer and mineral composition analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201653941U true CN201653941U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201325421U Expired - Lifetime CN201653941U (en) | 2010-03-16 | 2010-03-16 | X-ray spectrometer and mineral composition analyzer |
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| Country | Link |
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| CN (1) | CN201653941U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806759A (en) * | 2010-03-16 | 2010-08-18 | 北京矿冶研究总院 | X-ray spectrometer and mineral composition analyzer |
| CN106200686A (en) * | 2015-05-04 | 2016-12-07 | 宝山钢铁股份有限公司 | X fluorescence spectrometer analyzing crystal adjusting apparatus and method is fixed for Wavelength dispersion type |
-
2010
- 2010-03-16 CN CN2010201325421U patent/CN201653941U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806759A (en) * | 2010-03-16 | 2010-08-18 | 北京矿冶研究总院 | X-ray spectrometer and mineral composition analyzer |
| CN101806759B (en) * | 2010-03-16 | 2012-07-04 | 北京矿冶研究总院 | X-ray spectrometer and mineral composition analyzer |
| CN106200686A (en) * | 2015-05-04 | 2016-12-07 | 宝山钢铁股份有限公司 | X fluorescence spectrometer analyzing crystal adjusting apparatus and method is fixed for Wavelength dispersion type |
| CN106200686B (en) * | 2015-05-04 | 2019-07-23 | 宝山钢铁股份有限公司 | Device and method are adjusted for the fixed road X fluorescence spectrometer analyzing crystal of Wavelength dispersion type |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20120704 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20120704 |