CN107389713A - A kind of x-ray detection system of switching light filter - Google Patents
A kind of x-ray detection system of switching light filter Download PDFInfo
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- CN107389713A CN107389713A CN201710509020.5A CN201710509020A CN107389713A CN 107389713 A CN107389713 A CN 107389713A CN 201710509020 A CN201710509020 A CN 201710509020A CN 107389713 A CN107389713 A CN 107389713A
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- ray
- collimating
- detection system
- light filter
- switching light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/2204—Specimen supports therefor; Sample conveying means therefore
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention relates to a kind of x-ray detection system of switching light filter, sample stage, centre to be provided with sample detection hole；Storehouse is detected, is sealingly disposed in sample stage bottom, side is provided with observation window；X-ray source, is arranged on detection orlop portion, and the X-ray emission pipe of x-ray source is arranged in a vertical direction；Detector, it is arranged on detection storehouse opposite side, the secondary x rays sent for detecting sample；Collimating components, including, the motor being arranged on outside detection storehouse；It is arranged on the guide rail in detection orlop portion；Collimation block on guide rail is set；Some collimating apertures arranged vertically are provided with collimation block, collimating aperture bottom is optical filter mounting hole, and collimation block can move along the rail under the driving of linear electric motors.Collimating block can be under the driving of motor, make different collimating apertures between x-ray source and detection hole, the position can that block is collimated by adjusting uses different optical filters, and the X ray that x-ray source is sent can be irradiated to the sample on sample stage by collimating aperture.
Description
Technical field
The present invention relates to a kind of x-ray detection system of switching light filter, belong to elementary analysis equipment technical field.
Background technology
The atom of any element forms all by atomic nucleus and around the electronics of nuclear motion, and extranuclear electron is by its energy
Height layer distributed and form different energy levels, therefore, an atomic nucleus can have a variety of energy states.The energy of minimum energy
Level state is referred to as ground state level, and remaining energy level is referred to as excited level, and the excitation state of minimum energy is then referred to as first excited state.Just
In the case of often, atom is in ground state, moving on rails of the electron outside nucleus in respective minimum energy.If by certain outside energy such as
Luminous energy is supplied to the ground state atom, when ambient light ENERGY E is exactly equal in the ground state atom between ground state and a certain higher energy level
Energy level difference △ E when, the atom will absorb the light of this characteristic wavelength, outer-shell electron by ground state transition to corresponding excitation state,
Form atomic absorption spectrum.Electron transition is in excitation state later to higher energy level, but excitation state electronics is unstable, is passed through
After one short period, excitation state electronics will return to ground state or other lower level, and the energy absorbed during by electron transition with
The form of light discharges, and this process forms atomic emission spectrum.It can be seen that atomic absorption spectrum process absorbs emittance, and
Atomic emission spectrum process then discharges emittance.The analysis principle of x-ray fluorescence spectrometry instrument is：Light source launches original
Level X-ray, the radiation exposure sample, the corresponding energy of the Atomic absorption of element to be measured form excitation state, and outer-shell electron is to low energy
Level electronic shell transition, while launch secondary X-ray, i.e. x-ray fluorescence, to release energy, X- is detected by detector and penetrated
The intensity of line fluorescence, and then try to achieve the content of element to be measured.
When carrying out X-ray fluorescence spectra analysis, when analyzing different elements, it is necessary to change optical filter, and existing X is penetrated
Line fluorescence spectrum analyzer is difficult to switch optical filter.
The content of the invention
The technical problem to be solved in the present invention is：Solve optical filter in X-ray fluorescence spectrometer to be difficult to switch
A kind of technical problem, there is provided x-ray detection system of the switching light filter of convenient switching optical filter.
The technical solution adopted for the present invention to solve the technical problems is：
The present invention provides a kind of x-ray detection system of switching light filter, including：
Sample stage, centre are provided with sample detection hole；
Storehouse is detected, is sealingly disposed in sample stage bottom, side is provided with observation window；
X-ray source, is arranged on detection orlop portion, and the X-ray emission pipe of x-ray source is arranged in a vertical direction；
Detector, it is arranged on detection storehouse opposite side, the secondary x rays sent for detecting sample；
Collimating components, including, the motor being arranged on outside detection storehouse；It is arranged on the guide rail in detection orlop portion；Set on guide rail
Collimation block；Some collimating apertures arranged vertically are provided with collimation block, collimating aperture bottom is optical filter mounting hole, collimates block energy
It is enough to be moved along the rail under the driving of linear electric motors.
Preferably, the x-ray detection system of switching light filter of the invention, collimating aperture (4512) aperture are 0.1mm-
Arbitrary value between 2mm.
Preferably, the x-ray detection system of switching light filter of the invention, collimating aperture (4512) are into a row arrangement
Several.
Preferably, the x-ray detection system of switching light filter of the invention, collimating aperture (4512) are 7, aperture difference
For 0.1mm, 0.2mm, 0.2mm, 0.5mm, 0.5mm, 1mm, 1mm, 2mm, 2mm.
Preferably, the x-ray detection system of switching light filter of the invention, between two neighboring collimating aperture (4512)
Distance is 6-12mm.
Preferably, the x-ray detection system of switching light filter of the invention, motor are linear electric motors.
Preferably, the x-ray detection system of switching light filter of the invention, guide rail side are additionally provided with positive stop with after
Block, for limiting the movement travel of collimation block.
The beneficial effects of the invention are as follows：
The x-ray detection system of the switching light filter of the present invention, collimation block can make different under the driving of motor
Collimating aperture is between x-ray source and detection hole, namely the position can by adjusting collimation block uses different optical filters,
The X ray that x-ray source is sent can be irradiated to the sample on sample stage by collimating aperture.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the three-dimensional view of the x-ray detection system of the switching light filter with the embodiment of the present invention；
Fig. 2 is the three-dimensional view in the detection storehouse with the embodiment of the present invention；
Fig. 3 is the side view of the detectable storehouse and sample stage with the embodiment of the present invention；
Fig. 4 is the three-dimensional view of the collimating components of the embodiment of the present invention；
Fig. 5 is the three-dimensional view at the top of the collimation block of the embodiment of the present invention；
Fig. 6 is the three-dimensional view of the bottom of the collimation block of the embodiment of the present invention.
Reference in figure is：
40- detects storehouse；401- observation windows；41- sample stages；411- sample detections hole；42-X radiographic sources；43- cameras；
44- detectors；45- collimating components；451- collimates block；452- linear electric motors；453- positive stops；454- backstops；4512- is collimated
Hole；4513- optical filter mounting holes.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows the composition relevant with the present invention.
Embodiment
The present embodiment provides a kind of x-ray detection system of switching light filter, as illustrated in fig. 1 and 2, including：
Sample stage 41, centre are provided with sample detection hole 411；
Storehouse 40 is detected, is sealingly disposed in the bottom of sample stage 41, side is provided with observation window 401, set among sample stage 41
There is detection hole 411, detection hole 411 may be provided at a sample that can be dismantled and place on plate, to facilitate the replacing for placing plate；
X-ray source 42, is arranged on the detection bottom of storehouse 40, and the X-ray emission pipe of x-ray source 42 is arranged in a vertical direction；
Detector 44, it is arranged on the detection opposite side of storehouse 40, the secondary x rays sent for detecting sample；
Camera 43, alignment lenses observation window 401, for shooting positioned at sample on sample stage 41.
Including linear electric motors 452, the guide rail 453 being arranged on the detection bottom of storehouse 40, the collimation block on guide rail 453 is set
451, some collimating apertures 4512 arranged vertically, the bottom of collimating aperture 4512 is optical filter mounting hole 4513, the aperture of collimating aperture 4512
From the arbitrary value between 0.1mm-2mm, such as one that aperture is 0.1mm, each the two of aperture 0.2mm, 0.5mm, 1mm, 2mm
It is individual, naturally it is also possible to bigger or smaller, the distance between collimating aperture 4512 and collimating aperture 4512 are 6-12mm, as 6mm, 8mm,
9mm, 12mm etc., optical filter is provided with optical filter mounting hole 4513, collimation block 451 can be in the driving of linear electric motors 452
Under, make different collimating apertures 4512 between x-ray source 42 and detection hole 411, namely standard is adjusted by adjusting collimation block 451
The position can of straight block uses different optical filters, and the X ray that x-ray source 42 is sent can be irradiated to by collimating aperture 4512
The sample on sample stage 41.The detection bottom of storehouse 40, the side of guide rail 453 are additionally provided with positive stop 453 and backstop 454, are used for
The movement travel of limitation collimation block 451.
Can also be that motor adds ball leading screw driving pair as deformation linear electric motors 452.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (7)
- A kind of 1. x-ray detection system of switching light filter, it is characterised in that including：Sample stage (41), centre are provided with sample detection hole (411)；Detect storehouse (40), be sealingly disposed in sample stage (41) bottom, side is provided with observation window (401)；X-ray source (42), is arranged on detection storehouse (40) bottom, and the X-ray emission pipe of x-ray source (42) is arranged in a vertical direction；Detector (44), it is arranged on detection storehouse (40) opposite side, the secondary x rays sent for detecting sample；Collimating components (45), including, it is arranged on the motor of detection storehouse (40) outside；It is arranged on the guide rail of detection storehouse (40) bottom (453)；Collimation block (451) on guide rail (453) is set；Some collimating apertures arranged vertically are provided with collimation block (451) (4512), collimating aperture (4512) bottom is optical filter mounting hole (4513), and collimation block (451) can be in linear electric motors (452) Moved under driving along guide rail (453).
- 2. the x-ray detection system of switching light filter according to claim 1, it is characterised in that collimating aperture (4512) Arbitrary value of the aperture between 0.1mm-2mm.
- 3. the x-ray detection system of switching light filter according to claim 2, it is characterised in that collimating aperture (4512) For into one row arrangement several.
- 4. the x-ray detection system of switching light filter according to claim 3, it is characterised in that collimating aperture (4512) For 7, aperture is respectively 0.1mm, 0.2mm, 0.2mm, 0.5mm, 0.5mm, 1mm, 1mm, 2mm, 2mm.
- 5. the x-ray detection system of the switching light filter according to claim 3 or 4, it is characterised in that two neighboring standard The distance between straight hole (4512) is 6-12mm.
- 6. the x-ray detection system of the switching light filter according to claim any one of 1-4, it is characterised in that motor For linear electric motors (452).
- 7. the x-ray detection system of the switching light filter according to claim any one of 1-4, it is characterised in that guide rail (453) side is additionally provided with positive stop (453) and backstop (454), for limiting the movement travel of collimation block (451).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509020.5A CN107389713A (en) | 2017-06-28 | 2017-06-28 | A kind of x-ray detection system of switching light filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710509020.5A CN107389713A (en) | 2017-06-28 | 2017-06-28 | A kind of x-ray detection system of switching light filter |
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| Publication Number | Publication Date |
|---|---|
| CN107389713A true CN107389713A (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710509020.5A Pending CN107389713A (en) | 2017-06-28 | 2017-06-28 | A kind of x-ray detection system of switching light filter |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339878Y (en) * | 2009-01-20 | 2009-11-04 | 江苏天瑞仪器股份有限公司 | Light filter and collimator combined switching unit |
| CN201909767U (en) * | 2010-12-21 | 2011-07-27 | 纳优科技（北京）有限公司 | Energy dispersive X-ray fluorescence spectrometer for analyzing irregular samples directly |
| CN104020184A (en) * | 2014-04-04 | 2014-09-03 | 苏州三值精密仪器有限公司 | Upward-lighting type X-ray fluorescence spectrophotometer and control method thereof |
| CN203824941U (en) * | 2014-04-21 | 2014-09-10 | 苏州三值精密仪器有限公司 | Double-guide-rail collimating mechanism |
| CN203824940U (en) * | 2014-03-21 | 2014-09-10 | 上海精谱科技有限公司 | Handheld type X-ray fluorescence analyzer |
| CN205091279U (en) * | 2015-07-29 | 2016-03-16 | 上海精谱科技有限公司 | Integration X fluorescence analyser |
| CN206132672U (en) * | 2016-09-22 | 2017-04-26 | 北京师范大学 | X -ray fluorescence spectrograph |
-
2017
- 2017-06-28 CN CN201710509020.5A patent/CN107389713A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201339878Y (en) * | 2009-01-20 | 2009-11-04 | 江苏天瑞仪器股份有限公司 | Light filter and collimator combined switching unit |
| CN201909767U (en) * | 2010-12-21 | 2011-07-27 | 纳优科技（北京）有限公司 | Energy dispersive X-ray fluorescence spectrometer for analyzing irregular samples directly |
| CN203824940U (en) * | 2014-03-21 | 2014-09-10 | 上海精谱科技有限公司 | Handheld type X-ray fluorescence analyzer |
| CN104020184A (en) * | 2014-04-04 | 2014-09-03 | 苏州三值精密仪器有限公司 | Upward-lighting type X-ray fluorescence spectrophotometer and control method thereof |
| CN203824941U (en) * | 2014-04-21 | 2014-09-10 | 苏州三值精密仪器有限公司 | Double-guide-rail collimating mechanism |
| CN205091279U (en) * | 2015-07-29 | 2016-03-16 | 上海精谱科技有限公司 | Integration X fluorescence analyser |
| CN206132672U (en) * | 2016-09-22 | 2017-04-26 | 北京师范大学 | X -ray fluorescence spectrograph |
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Application publication date: 20171124 |