CN216870419U - Micro-area Mossbauer spectrometer for superfine particle sample - Google Patents
Micro-area Mossbauer spectrometer for superfine particle sample Download PDFInfo
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- CN216870419U CN216870419U CN202120382743.5U CN202120382743U CN216870419U CN 216870419 U CN216870419 U CN 216870419U CN 202120382743 U CN202120382743 U CN 202120382743U CN 216870419 U CN216870419 U CN 216870419U
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Abstract
The invention discloses a micro-area Mossbauer spectrometer for an ultrafine particle sample, and relates to the field of Mossbauer spectra. This micro-zone mossbauer spectrometer of superfine particle sample drives adjusting gear through rotating adjust knob and rotates, can drive latch and rack staggered movement, can drive first dead lever and second dead lever and outwards open, or inwards receive and close to the angle that is of adjustment capillary focusing lens.
Description
Technical Field
The invention relates to a micro-area Mossbauer spectrometer for an ultrafine particle sample, in particular to a micro-area Mossbauer spectrometer for an ultrafine particle sample.
Background
The Mossbauer spectrometer is a set of instruments manufactured according to the principle that recoil-free atomic nuclei resonantly absorb gamma rays, is a uniformly accelerated Mossbauer spectrometer, and is used for measuring a resonance absorption spectrum. The internal relation between the microscopic magnetism and the macroscopic magnetism of the magnetic material under an external magnetic field can be researched, the research functions of the spin structure and the spin dynamics are added, and the method can be used for researching the electric or magnetic interaction between the atomic nucleus and the surrounding environment in the solid materials such as the magnetic material, the high-temperature superconductor and the like. And further researching the properties of surrounding atoms in microscopic magnetism, electronic structure, valence state and distribution, lattice dynamics, lattice relaxation and the like. The Mossbauer spectrometer has the advantage of extremely high energy resolution (the highest energy resolution is 10-13eV), and is one of powerful means for researching the hyperfine interaction and microstructure properties of substances.
At present, measurable samples of the Mossbauer spectrometer require larger samples no matter under high temperature, low temperature and back scattering mode test conditions, the diameter of the samples is required to be not less than 10 mm, the thickness of the samples cannot be less than 0.2 mm according to the iron content of the samples, the samples cannot penetrate through the samples due to too thick thickness and self-absorption phenomenon, the Mossbauer spectrum effect is not obvious due to too thin samples, and the excitation ray energy of the Mossbauer spectrum is 14.4KeV, belongs to low-energy gamma rays and has weak penetrating capacity to the samples.
For a plurality of customers requiring to measure a trace amount of samples or nanogram-level samples (fine chemical analysis industry), the conventional Mossbauer spectrometer cannot measure so few samples, and Mossbauer spectrum test of micro grains (such as geological samples) cannot realize the measurement and analysis of Mossbauer spectrums.
In order to solve the problem that a large number of test samples are required in the existing Mossbauer spectrum technology, a measuring light path and an instrument structure of the Mossbauer spectrum are newly designed, so that the original technical performance can be improved, samples with nanogram-level quantity can be measured and analyzed, the Mossbauer spectrum of micron-sized crystal particles in the samples can be measured, and the aims of new test requirements and test environmental conditions of the samples in the application of the Mossbauer spectrum at the modern scientific frontier are perfectly fulfilled by combining an optical microscope, a detector with high energy resolution and an X-ray capillary focusing technology.
Disclosure of Invention
The invention aims to provide a micro-area Mossbauer spectrometer for an ultrafine particle sample, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a micro-area Mossbauer spectrometer for superfine particle samples comprises a base, wherein a vibration sensor is mounted at the upper end of the base, a support is mounted on one side of the base, the support is of a cylindrical structure, a sleeve frame is sleeved at one end, away from the base, of the support, the sleeve frame is of a cylindrical hollow structure, openings are formed in the upper end and the lower end of the cylindrical hollow structure, a microscope is fixedly connected to one side of the sleeve frame, a detector is mounted at the lower end of the microscope, a slide rail is mounted on one side of the detector and is slidably connected with the slide rail, a detector is slidably connected to one end of the slide rail, the other end of the slide rail is fixedly connected with the support, a carrier is mounted at the lower end of the detector, a glass slide is clamped in the carrier, the support is fixedly connected to one side of the carrier, a through hole is formed in the middle position of the carrier, a capillary focusing lens is mounted at the position of the through hole of the carrier, and the capillary focusing lens is irregular in shape, and the middle part of the capillary focusing lens is provided with an adjusting component.
As a further scheme of the invention: the adjusting part comprises a fixing frame, the inner wall of the fixing frame is respectively connected with a first fixing rod and a second fixing rod in a rotating mode through a rotating shaft, the first fixing rod and the second fixing rod are equally divided into two groups of same symmetrical long rods, the two groups of same symmetrical long rods are connected between the first fixing rod in a rotating mode through the rotating shaft and a connecting rod, the two groups of same symmetrical long rods are connected between the second fixing rod in a rotating mode through the rotating shaft and the connecting rod, and the first fixing rod and the second fixing rod are connected through a connecting sleeve in a rotating mode.
As a further scheme of the invention: the utility model discloses a fixing device for fixing a vehicle, including a fixing frame, a rack, a first fixed rod, a rack, a latch and a rack, the inside swing joint of fixing frame has latch and rack, the one end that the mount was kept away from to the latch is connected with the surface fixed of first fixed rod, the one end that the mount was kept away from to the rack is connected with the surface fixed of second fixed rod, latch and rack all become half arc.
As a further scheme of the invention: the inside of mount is connected with the gear through the pivot rotation, gear and latch and rack toothing.
As a further scheme of the invention: the front end of the adjusting gear is connected with an adjusting knob through a threaded rod, the adjusting knob is arranged at the front end of the fixing frame, and the adjusting knob is rotatably connected with the fixing frame.
As a further scheme of the invention: the vibration sensor is composed of four groups of driving modules, a Mossbauer source is installed in the middle of the vibration sensor, a capillary tube focusing lens is sleeved outside the Mossbauer source, one end of the capillary tube focusing lens is arranged inside the vibration sensor, and the other end of the capillary tube focusing lens is arranged inside the carrier.
As a further scheme of the invention: the glass cover is installed to the base lower extreme, base and support are all installed in glass cover inner wall bottom, glass cover inner wall bottom is seted up flutedly, and the base arranges the recess in, spring coupling is passed through with the recess bottom to the base, spring one end fixed connection recess bottom, and spring other end fixed connection base bottom.
As a further scheme of the invention: the camera module is installed at the upper end of the microscope, and the shell of the camera module is fixedly connected with the upper end surface of the microscope.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention comprises the following steps: drive adjusting gear through rotating adjust knob and rotate, can drive latch and rack staggered movement, can drive first dead lever and second dead lever and outwards open, or inwards receive and close to the angle that is of adjustment capillary focusing lens utilizes and offers the recess between base bottom and the glass cover inner wall bottom, and recess internally mounted has the spring, utilizes the spring to kick-back the increase buffering.
2. The invention comprises the following steps: mossbauer spectra of samples in nanogram order can be measured in a temperature environment of 1.5K to 300K.
3. The invention comprises the following steps: the Mossbauer spectrum of a crystal particle sample with the diameter of 2-5 um can be independently measured in the temperature environment of 1.5-300K.
4. The invention comprises the following steps: the resolution of the energy measurement of the mossbauer spectra of the samples can reach 200eV or even lower.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the adjustment assembly of the present invention;
FIG. 3 is a side view of the adjusting knob of the present invention;
FIG. 4 is a sectional view of the gear of the present invention in a top view;
fig. 5 is a schematic perspective view of a base of the present invention.
In the figure: 1. a camera module; 2. a microscope; 3. a detector; 4. a stage; 5. a capillary focusing lens; 6. a vibration sensor; 7. a drive module; 8. a glass cover; 9. a groove; 10. sleeving a frame; 11. a slide rail; 12. a support; 13. a glass slide; 14. a Mossbauer source; 15. a base; 16. adjusting a knob; 17. a fixed mount; 18. a rack; 19. an adjustment assembly; 20. clamping teeth; 21. a first fixing lever; 22. a second fixing bar; 23. a connecting rod; 24. a rotating shaft; 25. connecting sleeves; 26. a threaded rod; 27. a gear; 28. a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, in the embodiment of the invention, a micro-area mossbauer spectrometer for an ultrafine particle sample includes a base 15, a vibration sensor 6 is mounted at the upper end of the base 15, a support 12 is mounted at one side of the base 15, the support 12 is of a cylindrical structure, a sleeve 10 is sleeved at one end of the support 12 away from the base 15, the sleeve 10 is of a cylindrical hollow structure, openings are formed at the upper end and the lower end of the sleeve 10, a microscope 2 is fixedly connected to one side of the sleeve 10, a detector 3 is mounted at the lower end of the microscope 2, a slide rail 11 is mounted at one side of the detector 3, the detector 3 is slidably connected to the slide rail 11, one end of the slide rail 11 is slidably connected to the detector 3, the other end of the slide rail 11 is fixedly connected to the support 12, a carrier 4 is mounted at the lower end of the detector 3, a slide carrier 13 is clamped inside the carrier 4, and one side of the carrier 4 is fixedly connected to the support 12, a through hole is formed in the middle of the carrier 4, a capillary focusing lens 5 is installed at the position right below the through hole of the carrier 4, the capillary focusing lens 5 is irregular, and an adjusting component 19 is installed in the middle of the capillary focusing lens 5.
Adjusting part 19 includes mount 17, the inner wall of mount 17 rotates with first dead lever 21 and second dead lever 22 respectively through pivot 24 to be connected, first dead lever 21 and second dead lever 22 are equallyd divide for two sets of the same symmetry stock, and are two sets of rotate through pivot 24 and connecting rod 23 between the first dead lever 21 and connect, and are two sets of rotate through pivot 24 and connecting rod 23 between the second dead lever 22 and connect, rotate through adapter sleeve 25 between first dead lever 21 and the second dead lever 22 and be connected.
The inside swing joint of mount 17 has latch 20 and rack 18, the one end that mount 17 was kept away from to latch 20 is connected with the surface mounting of first dead lever 21, the one end that rack 18 kept away from mount 17 is connected with the surface mounting of second dead lever 22, latch 20 and rack 18 all become half arc.
The inside of the fixed frame 17 is rotatably connected with a gear 27 through a rotating shaft 24, and the gear 27 is meshed with the latch 20 and the rack 18.
The front end of the adjusting gear 27 is connected with an adjusting knob 16 through a threaded rod 26, the adjusting knob 16 is arranged at the front end of the fixing frame 17, and the adjusting knob 16 is rotatably connected with the fixing frame 17.
The vibration sensor 6 is composed of four groups of driving modules 7, a Mossbauer source 14 is installed in the middle of the vibration sensor 6, a capillary focusing lens 5 is sleeved outside the Mossbauer source 14, one end of the capillary focusing lens 5 is arranged inside the vibration sensor 6, and the other end of the capillary focusing lens 5 is arranged inside the carrier 4.
The camera module 1 is installed to microscope 2 upper end, camera module 1's shell fixed connection microscope 2 upper end surface.
The device comprises the following steps:
the method comprises the following steps: smearing fluorescent light-emitting liquid on one side of a blank glass slide 13;
step two: positioning in a 2 '+' word pair of the microscope, and determining that the focus is at the center of a microscope focal plane;
step three: raising the microscope 2 by 5cm integrally, and moving the Si-Pin detector 3 above a microscopic focal plane;
step four: and starting to measure and collect the museum spectral data.
The preferred embodiment of the invention is:
a micro-area Mossbauer spectrometer for ultrafine particle samples comprises a base 15, wherein a vibration sensor 6 is mounted at the upper end of the base 15, a support 12 is mounted on one side of the base 15, the support 12 is of a cylindrical structure, a sleeve frame 10 is sleeved on one end, away from the base 15, of the support 12, the sleeve frame 10 is of a cylindrical hollow structure, openings are formed in the upper end and the lower end of the cylindrical hollow structure, a microscope 2 is fixedly connected to one side of the sleeve frame 10, a detector 3 is mounted at the lower end of the microscope 2, a sliding rail 11 is mounted on one side of the detector 3, the detector 3 is slidably connected with the sliding rail 11, one end of the sliding rail 11 is slidably connected with the detector 3, the other end of the sliding rail 11 is fixedly connected with the support 12, a carrier 4 is mounted at the lower end of the detector 3, a carrier 13 is clamped inside the carrier 4, one side of the carrier 4 is fixedly connected with the support 12, and a through hole is formed in the middle position of the carrier 4, and a capillary vessel focusing lens 5 is arranged right below the through hole of the carrier 4, the capillary vessel focusing lens 5 is in an irregular shape, and an adjusting component 19 is arranged in the middle of the capillary vessel focusing lens 5.
Wherein the detector 3 is a Si-Pin crystal detector, the resolution is 150kev, and the operating temperature is-40 ℃ to +75 ℃.
Adjusting part 19 includes mount 17, the inner wall of mount 17 rotates with first dead lever 21 and second dead lever 22 respectively through pivot 24 to be connected, first dead lever 21 and second dead lever 22 are equallyd divide for two sets of the same symmetry stock, and are two sets of rotate through pivot 24 and connecting rod 23 between the first dead lever 21 and connect, two sets of rotate through pivot 24 and connecting rod 23 between the second dead lever 22 and connect, rotate through adapter sleeve 25 between first dead lever 21 and the second dead lever 22 and be connected.
The inside swing joint of mount 17 has latch 20 and rack 18, the one end that mount 17 was kept away from to latch 20 is connected with the surface mounting of first dead lever 21, the one end that rack 18 kept away from mount 17 is connected with the surface mounting of second dead lever 22, latch 20 and rack 18 all become half arc.
The inside of the fixed frame 17 is rotatably connected with a gear 27 through a rotating shaft 24, and the gear 27 is meshed with the latch 20 and the rack 18.
The front end of the adjusting gear 27 is connected with an adjusting knob 16 through a threaded rod 26, the adjusting knob 16 is arranged at the front end of the fixing frame 17, and the adjusting knob 16 is rotatably connected with the fixing frame 17.
The vibration sensor 6 is composed of four groups of driving modules 7, a Mossbauer source 14 is installed in the middle of the vibration sensor 6, a capillary focusing lens 5 is sleeved outside the Mossbauer source 14, one end of the capillary focusing lens 5 is arranged inside the vibration sensor 6, and the other end of the capillary focusing lens 5 is arranged inside the carrier 4. When the capillary focusing lens works, the adjusting knob 16 is rotated to drive the adjusting gear 27 to rotate, so as to drive the latch 20 and the rack 18 to move in a staggered manner, and then the first fixing rod 21 and the second fixing rod 22 are driven to open outwards or close inwards, so as to adjust the angle of the capillary focusing lens 5. Therefore, the purpose that the capillary focusing lens 5 focuses the Mossbauer source 14 is achieved, the capillary focusing lens 5 collects a large solid angle of X rays from the Mossbauer source 14 and focuses the X rays, and the diameter of a focus after focusing is as follows: 2-10um, preferably a focal diameter of 6um, preferably a focal diameter of 8 um; incident ray capture angle: 0.05-0.2 rad; distance between front and rear focal points: 175 mm; outer diameter of focusing device: 15-20 mm; intensity gain: 500-2000. More accurate measurement values can be obtained through the arrangement, so that the measurement of the ultrafine particle sample is realized.
The glass cover 8 is not provided with a shielding lead sheath or a shielding lead sheath, the shielding lead sheath contains 99.5% of lead, the thickness of the shielding lead sheath is 5mm, and the shielding lead sheath is about 2 square meters.
The camera module 1 is installed to microscope 2 upper end, camera module 1's shell fixed connection microscope 2 upper end surface. The camera module 1 can be a digital camera and computer imaging software, and is set to have a resolution of at least 800 ten thousand pixels during working.
The preferred use steps are:
the method comprises the following steps: setting the temperature of a working environment: 5-35 ℃; relative humidity of operation: 20 to 90 percent; system supply voltage requirements: the power grid meets the national power grid standard, 220VAC +/-10%/single-phase 5 KW; the damping platform is arranged on the table top.
Step two: smearing fluorescent light-emitting liquid on one side of a blank glass slide 13;
step three: positioning in a 2 '+' word pair of the microscope, and determining that the focus is at the center of a microscope focal plane;
step four: raising the microscope 2 by 5cm integrally, and moving the Si-Pin detector 3 above a microscopic focal plane;
step five: and starting to measure and collect the museum spectral data.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A micro-region Mossbauer spectrometer for ultrafine particle samples comprises a base (15), and is characterized in that: the microscope is characterized in that a vibration sensor (6) is installed at the upper end of the base (15), a support (12) is installed on one side of the base (15), the support (12) is of a cylindrical structure, a sleeve frame (10) is sleeved on one end, far away from the base (15), of the support (12), the sleeve frame (10) is of a cylindrical hollow structure, openings are formed in the upper end and the lower end of the sleeve frame (10), a microscope (2) is fixedly connected to one side of the sleeve frame (10), a detector (3) is installed at the lower end of the microscope (2), a sliding rail (11) is installed on one side of the detector (3), the detector (3) is in sliding connection with the sliding rail (11), one end of the sliding rail (11) is in sliding connection with the detector (3), the other end of the sliding rail (11) is fixedly connected with the support (12), a carrier (4) is installed at the lower end of the detector (3), and a carrier (13) is clamped inside the carrier (4), and one side of the carrier (4) is fixedly connected with a support (12), a through hole is formed in the middle of the carrier (4), a capillary focusing lens (5) is installed right below the through hole of the carrier (4), and an adjusting component (19) is installed in the middle of the capillary focusing lens (5).
2. The micro-region mossbauer spectrometer of an ultrafine particle sample as set forth in claim 1, wherein: adjusting part (19) are including mount (17), the inner wall of mount (17) rotates with first dead lever (21) and second dead lever (22) respectively through pivot (24) and is connected, first dead lever (21) and second dead lever (22) are equallyd divide into two sets of the same symmetry stock, and are two sets of rotate through pivot (24) and connecting rod (23) between first dead lever (21) and connect, and are two sets of rotate through pivot (24) and connecting rod (23) between second dead lever (22) and connect, rotate through adapter sleeve (25) between first dead lever (21) and second dead lever (22) and be connected.
3. The micro-zone mossbauer spectrometer of the ultrafine particle sample as claimed in claim 2, wherein: the utility model discloses a fixing device for fixing a vehicle, including mount (17), the inside swing joint of mount (17) has latch (20) and rack (18), the one end that mount (17) were kept away from in latch (20) is connected with the external fixed surface of first dead lever (21), the one end that mount (17) were kept away from in rack (18) is connected with the external fixed surface of second dead lever (22), latch (20) and rack (18) all become half arc.
4. The micro-region mossbauer spectrometer of an ultrafine particle sample as set forth in claim 3, wherein: the inside of mount (17) is connected with gear (27) through pivot (24) rotation, gear (27) and latch (20) and rack (18) meshing.
5. The micro-region mossbauer spectrometer of the ultrafine particle sample as set forth in claim 4, wherein: the front end of gear (27) is connected with adjust knob (16) through threaded rod (26), and adjust knob (16) set up with the front end of mount (17), adjust knob (16) and mount (17) are rotated and are connected.
6. The micro-region mossbauer spectrometer of an ultrafine particle sample as set forth in claim 1, wherein: the vibration sensor (6) is composed of four groups of driving modules (7), a Mossbauer source (14) is installed in the middle of the vibration sensor (6), a capillary focusing lens (5) is sleeved outside the Mossbauer source (14), one end of the capillary focusing lens (5) is arranged inside the vibration sensor (6), and the other end of the capillary focusing lens (5) is arranged inside the carrying platform (4).
7. The micro-region mossbauer spectrometer of an ultrafine particle sample as set forth in claim 1, wherein: glass cover (8) are installed to base (15) lower extreme, base (15) and support (12) are all installed in glass cover (8) inner wall bottom, glass cover (8) inner wall bottom is seted up fluted (9), and in base (15) were arranged recess (9), base (15) are connected through spring (28) with recess (9) bottom, spring (28) one end fixed connection recess (9) bottom, and spring (28) other end fixed connection base (15) bottom.
8. The micro-region mossbauer spectrometer of an ultrafine particle sample as set forth in claim 1, wherein: the camera module (1) is installed on the upper end of the microscope (2), and the shell of the camera module (1) is fixedly connected with the upper end surface of the microscope (2).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120382743.5U CN216870419U (en) | 2021-02-20 | 2021-02-20 | Micro-area Mossbauer spectrometer for superfine particle sample |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120382743.5U CN216870419U (en) | 2021-02-20 | 2021-02-20 | Micro-area Mossbauer spectrometer for superfine particle sample |
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