CN107367522B - Rotating structure for multiple collimators of X-ray fluorescence spectrometer - Google Patents
Rotating structure for multiple collimators of X-ray fluorescence spectrometer Download PDFInfo
- Publication number
- CN107367522B CN107367522B CN201710811364.1A CN201710811364A CN107367522B CN 107367522 B CN107367522 B CN 107367522B CN 201710811364 A CN201710811364 A CN 201710811364A CN 107367522 B CN107367522 B CN 107367522B
- Authority
- CN
- China
- Prior art keywords
- cylindrical rolling
- component
- circular structural
- circular
- structural component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention discloses a rotating structure for multiple collimators of an X-ray fluorescence spectrometer, which comprises: the metal components form a circular structural component which is combined into a concentric circle and has a rectangular or circular cross section, and a plurality of cylindrical rolling components which are arranged in a supporting space formed by the circular structural component, wherein the parallel surface of the inner side or the outer side of the circular structural component is tightly contacted with the outer surface of the cylindrical rolling component, the cylindrical rolling component is vertically arranged, the circular surface formed by the circular structural component is vertical to the central axis of the cylindrical rolling component, and the gap formed by the contact of the cylindrical rolling component and the circular structural component is smaller than the length of the cylindrical rolling component; the invention can replace the defects of the original bearing, increase the volume of the rolling part, improve the overall mechanical performance and prolong the service life, the design is simpler, can be more small-size with overall structure on the same mechanical properties of demand, adopts columnar structure roller simultaneously, and it is more convenient than adopting spherical roller in the installation, and stability is better.
Description
Technical Field
The invention belongs to the field of X-ray fluorescence spectrometers, and particularly relates to a rotating structure of a multi-collimator.
Background
An X-ray or other photon source excites atoms in the substance to be measured, causing it to fluoresce (secondary X-rays). Thereby performing an analysis of the composition of matter. X-ray fluorescence spectrometers, also known as XRF spectrometers, are both dispersive and non-dispersive. The dispersion type is classified into a wavelength dispersion type and an energy dispersion type. The wavelength dispersion type XRF spectrometer comprises an X-ray tube excitation source, a light splitting system, a detector system, a vacuum system, an airflow system and the like. According to different focusing geometrical conditions of the analysis crystal, the analysis crystal is divided into a non-focusing reflection flat crystal type, a semi-focusing reflection curved crystal type, a full-focusing reflection curved crystal type, a semi-focusing transmission curved crystal type and the like. The principle is that after a sample is irradiated by X-rays, the electrons of the atomic inner shell layer of the element are excited, shell layer electrons jump and emit characteristic X-rays of the element, and the proportional relation between the intensity and the concentration of the wavelength (energy) of the characteristic X-rays of the element is measured by a detector, so that quantitative analysis can be performed, the quantitative analysis method has the advantages of no damage to the sample, high analysis speed, suitability for measuring all chemical elements with the atomic number of more than 4, high analysis precision and simple sample preparation; and at present, no commercial sequential wavelength dispersion X-ray fluorescence spectrometer appears yet in China, so corresponding equipment is still in a blank stage, further research and development need to be carried out on the equipment, and in order to be capable of more effectively measuring various substance components, a plurality of collimators need to be used, the current technology does not have a plurality of available collimator convenient structures, and simultaneously, a plurality of collimators are fused together and still need to be operated conveniently, the structure is moderate so as to be suitable for corresponding equipment, so that the prior art structure is not easy to adopt, and a new structure needs to be searched.
Disclosure of Invention
In view of the above, there is a need to overcome at least one of the above-mentioned deficiencies in the prior art. The invention provides a rotating structure for a multi-collimator of an X-ray fluorescence spectrometer.
The rotating structure for the multi-collimator comprises a plurality of metal components, a circular structural component and a plurality of cylindrical rolling components, wherein the circular structural component is formed by combining a plurality of metals into a concentric circle, the cross section of the circular structural component is rectangular or circular, the cylindrical rolling components are arranged in a supporting space formed by the circular structural component, the parallel surfaces of the inner side or the outer side of the circular structural component are in close contact with the outer surface of each cylindrical rolling component, each cylindrical rolling component is vertically arranged, the circular surface formed by the circular structural component is perpendicular to the central axis of each cylindrical rolling component, and the gap formed by the contact of each cylindrical rolling component and the circular structural component is smaller than the length of each cylindrical rolling component.
According to the prior art in the patent background, no commercial sequential wavelength dispersion X-ray fluorescence spectrometer is available in China, so that the corresponding equipment is still in a blank stage, further research and development of the equipment are needed, and a plurality of collimators are needed for more effectively measuring various substance components, the conventional technology has no available convenient structure of a plurality of collimators, and meanwhile, the operation is convenient and fast when the plurality of collimators are fused together, and the structure is moderate so as to be suitable for the corresponding equipment; the invention discloses a rotary structure for a multi-collimator of an X-ray fluorescence spectrometer, which adopts a plurality of round structural components as supporting components, and a plurality of column-shaped rolling components are arranged in the middle and corresponding inner and outer side structures forming rotation are used as further support, on one hand, the defects of the original bearing can be replaced, such as avoiding the problems of complex structural design or increased volume design and subsequent installation and maintenance caused by the use of bearings, meanwhile, the volume of the rolling part can be increased, the integral mechanical property is improved, the service life is prolonged, the design is simpler, and the whole structure is more miniaturized on the same mechanical property requirement, besides the advantages, the roller with the column structure is adopted, the installation is more convenient than adopting spherical roller, and stability is better simultaneously, but then can be some complicacies on structural design.
In addition, the rotating structure for the multi-collimator disclosed by the invention also has the following additional technical characteristics:
further, the number of the circular structural components is greater than or equal to 2, and the number of the circular structural components arranged on the inner side and the outer side of the columnar rolling component is greater than or equal to one.
Furthermore, the number of the circular structural components is more than or equal to 4, and two circular structural components are arranged on the inner side and the outer side of the column-shaped rolling component respectively.
Further, the rotating structure further comprises a cylinder body which is arranged on the inner side of the cylindrical rolling component and is in contact with the inner side of the cylindrical rolling component and used for installing a plurality of collimators, and a fixing component fixedly arranged with the outside.
Further, the inner side of the fixed part is provided with a groove, the rotating structure is installed in the groove, and the inner side height of the column-shaped rolling part in the rotating structure is higher than the opening of the groove and is in contact with the cylinder.
Furthermore, the inner side of the fixed part is provided with a bulge which is contacted with the outer surface of the columnar rolling part, and the outer side of the cylinder is provided with a bulge which is contacted with the outer surface of the columnar rolling part.
Optionally, the number of the grooves on the inner side of the fixing part is N, and the number of the rotating structures is N, and the N grooves and the rotating structures are assembled in a one-to-one correspondence manner.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a top view of an embodiment according to the present invention;
FIG. 2 is a cross-sectional view of a front view according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a cartridge with a retaining member according to an embodiment of the invention;
in fig. 1, 1 circular structural member, 11 inner circular structural member, 12 outer circular structural member, 3 cylinder, 4 fixing member in fig. 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "lateral", "vertical", "inner", "outer", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "coupled," "communicating," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly connected, integrally connected, or detachably connected; may be communication within two elements; can be directly connected or indirectly connected through an intermediate medium; "mating" may be a surface-to-surface mating, a point-to-surface or line-to-surface mating, and also includes a hole axis mating, and it is obvious to those skilled in the art that the above terms have specific meanings in the present invention.
The invention has the following conception that a plurality of circular structural components are adopted as supporting components, a plurality of column-shaped rolling components are arranged in the middle, and corresponding inner and outer side structures forming rotation are utilized for further supporting, so that the defects of the original bearing can be replaced, such as the problems of complicated structural design or volume design increase, subsequent installation and maintenance and the like caused by the use of the bearing are avoided, the volume of the rolling components can be increased, the integral mechanical performance and the service life are improved, the design is simpler, and the integral structure can be miniaturized on the premise of requiring the same mechanical performance.
The aligning apparatus of the present invention will be described with reference to the accompanying drawings, in which fig. 1 is a plan view of an embodiment according to the present invention; FIG. 2 is a cross-sectional view of a front view according to an embodiment of the present invention; FIG. 3 is a cross-sectional view of a cartridge with a retaining member according to an embodiment of the invention.
According to the embodiment of the invention, as shown in fig. 1 and 2, the rotary structure for multiple collimators disclosed by the invention comprises a plurality of metal components which form a circular structural component 1 (comprising 11 and 12) which is combined into a concentric circle and has a rectangular or circular cross section, and a plurality of cylindrical rolling components 2 which are arranged in a supporting space formed by the circular structural component, wherein the inner or outer parallel surfaces of the circular structural component 1 are tightly contacted with the outer surface of the cylindrical rolling components 2, the cylindrical rolling components 2 are vertically arranged, the circular surface formed by the circular structural component 1 is vertical to the central axis of the cylindrical rolling components 2, the gap formed by the cylindrical rolling components 2 and the circular structural component 1 in contact is smaller than the length of the cylindrical rolling components 2, and as shown in fig. 2, the gap formed by 2 inner circular structural components 11 or 2 outer circular structural components 12 is smaller than the length of the cylindrical rolling components 2, thus, the cylindrical rolling members can be firmly installed between the circular structural members.
In addition, the rotating structure for the multi-collimator disclosed by the invention also has the following additional technical characteristics:
according to some embodiments of the present invention, the number of the circular structural members 1 is 2 or more, and the number of the circular structural members 1 disposed on both the inner and outer sides of the pillar type rolling member 2 is one or more.
Further, the number of the circular structural members 1 is 4 or more, and two circular structural members 1 are arranged on both the inner side and the outer side of the columnar rolling member 2.
Further, the rotating structure further comprises a cylinder 3 which is arranged inside the cylindrical rolling component 2 and is in contact with the inside of the cylindrical rolling component 2 and is used for installing a plurality of collimators, and a fixing component 4 fixedly arranged with the outside.
Further, the fixed member 4 has a groove inside in which the rotary structure is installed, and the inside height of the cylindrical rolling member 2 in the rotary structure is higher than the opening of the groove and contacts the cylinder 3.
Furthermore, the inner side of the fixing part 4 is provided with a bulge which is contacted with the outer surface of the column-shaped rolling part 2, and the outer side of the cylinder 3 is provided with a bulge which is contacted with the outer surface of the column-shaped rolling part 2.
Optionally, the number of the grooves on the inner side of the fixing part 4 is N, and the number of the rotating structures is N, and the N grooves and the rotating structures are assembled in a one-to-one correspondence manner.
Any reference to "one embodiment," "an embodiment," "example embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. This schematic representation in various places throughout this specification does not necessarily refer to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments.
While specific embodiments of the invention have been described in detail with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. In particular, reasonable variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the foregoing disclosure, the drawings and the appended claims without departing from the spirit of the invention. Except variations and modifications in the component parts and/or arrangements, the scope of which is defined by the appended claims and equivalents thereof.
Claims (7)
1. A rotating structure for multiple collimators of an X-ray fluorescence spectrometer is characterized by comprising: the metal rolling device comprises a circular structural component and a plurality of cylindrical rolling components, wherein the circular structural component is formed by combining a plurality of metals into a concentric circle, the cross section of the circular structural component is rectangular or circular, the cylindrical rolling components are arranged in a supporting space formed by the circular structural component, the inner side or outer side parallel surface of the circular structural component is tightly contacted with the outer surface of the cylindrical rolling component, the cylindrical rolling component is vertically arranged, the circular surface formed by the circular structural component is vertical to the central axis of the cylindrical rolling component, and the gap formed by the contact of the cylindrical rolling component and the circular structural component is smaller than the length of the cylindrical rolling component.
2. The rotary structure for multiple collimators of an X-ray fluorescence spectrometer according to claim 1, wherein the number of said circular structural members is 2 or more, and the number of said circular structural members disposed on the inner and outer sides of said cylindrical rolling member is one or more.
3. The rotary structure of multi-collimator for X-ray fluorescence spectrometer according to claim 1, wherein the number of the circular structural members is 4 or more, and two circular structural members are disposed inside and outside the cylindrical rolling member.
4. The rotary structure for multiple collimators of an X-ray fluorescence spectrometer according to claim 1, wherein said rotary structure further comprises a cylinder for mounting multiple collimators mounted inside and in contact with the inside of said cylindrical rolling member, and a fixing member fixedly mounted to the outside.
5. The rotating structure for multiple collimators of an X-ray fluorescence spectrometer according to claim 4, wherein said fixed member has a groove inside, said rotating structure is mounted in said groove, and the height of the inside of said cylindrical rolling member in said rotating structure is higher than the opening of said groove and contacts with said cylinder.
6. The rotary structure of claim 5, wherein the fixed member has a protrusion on its inner side contacting with the outer surface of the cylindrical rolling member, and the cylinder has a protrusion on its outer side contacting with the outer surface of the cylindrical rolling member.
7. The rotary structure for multiple collimators of an X-ray fluorescence spectrometer according to claim 5, wherein the number of the grooves on the inner side of the fixing member is N, and the number of the rotary structures is N, and the rotary structures are assembled in a one-to-one correspondence manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811364.1A CN107367522B (en) | 2017-09-11 | 2017-09-11 | Rotating structure for multiple collimators of X-ray fluorescence spectrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710811364.1A CN107367522B (en) | 2017-09-11 | 2017-09-11 | Rotating structure for multiple collimators of X-ray fluorescence spectrometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107367522A CN107367522A (en) | 2017-11-21 |
| CN107367522B true CN107367522B (en) | 2020-05-15 |
Family
ID=60302518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710811364.1A Active CN107367522B (en) | 2017-09-11 | 2017-09-11 | Rotating structure for multiple collimators of X-ray fluorescence spectrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107367522B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107390A (en) * | 1978-02-09 | 1979-08-23 | Power Reactor & Nuclear Fuel Dev Corp | Rotary grid device |
| CN2914258Y (en) * | 2006-02-28 | 2007-06-20 | 史荣 | Medical rotating collimator |
| CN201935879U (en) * | 2010-12-21 | 2011-08-17 | 纳优科技（北京）有限公司 | Rotating disc type light-filtering collimating device adapted to vertical optical path X-ray fluorescence spectrometer |
| CN202620505U (en) * | 2012-05-29 | 2012-12-26 | 深圳市奥沃医学新技术发展有限公司 | Collimation device and radiotherapy equipment capable of switching ray beam limiting unit |
| CN203606501U (en) * | 2013-12-16 | 2014-05-21 | 中广核工程有限公司 | [Gamma] ray collimator and detection system thereof |
| CN105845190A (en) * | 2016-05-06 | 2016-08-10 | 东莞中子科学中心 | Neutron collimator |
-
2017
- 2017-09-11 CN CN201710811364.1A patent/CN107367522B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107390A (en) * | 1978-02-09 | 1979-08-23 | Power Reactor & Nuclear Fuel Dev Corp | Rotary grid device |
| CN2914258Y (en) * | 2006-02-28 | 2007-06-20 | 史荣 | Medical rotating collimator |
| CN201935879U (en) * | 2010-12-21 | 2011-08-17 | 纳优科技（北京）有限公司 | Rotating disc type light-filtering collimating device adapted to vertical optical path X-ray fluorescence spectrometer |
| CN202620505U (en) * | 2012-05-29 | 2012-12-26 | 深圳市奥沃医学新技术发展有限公司 | Collimation device and radiotherapy equipment capable of switching ray beam limiting unit |
| CN203606501U (en) * | 2013-12-16 | 2014-05-21 | 中广核工程有限公司 | [Gamma] ray collimator and detection system thereof |
| CN105845190A (en) * | 2016-05-06 | 2016-08-10 | 东莞中子科学中心 | Neutron collimator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107367522A (en) | 2017-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | Carbon nanodots as a matrix for the analysis of low-molecular-weight molecules in both positive-and negative-ion matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and quantification of glucose and uric acid in real samples | |
| Marcus et al. | Liquid sampling-atmospheric pressure glow discharge ionization source for elemental mass spectrometry | |
| Wang et al. | Current state of the art of mass spectrometry-based metabolomics studies–a review focusing on wide coverage, high throughput and easy identification | |
| Kim et al. | Improved ion transmission from atmospheric pressure to high vacuum using a multicapillary inlet and electrodynamic ion funnel interface | |
| Wang et al. | Vacuum ultraviolet laser desorption/ionization mass spectrometry imaging of single cells with submicron craters | |
| Crawford et al. | Direct analysis in real time coupled with dried spot sampling for bioanalysis in a drug-discovery setting | |
| Li et al. | Sub-nanoliter metabolomics via mass spectrometry to characterize volume-limited samples | |
| Galicia et al. | Atmospheric pressure matrix-assisted laser desorption/ionization in transmission geometry | |
| Peres et al. | New sample holder geometry for high precision isotope analyses | |
| Kennedy et al. | Evaluation and performance of desorption electrospray ionization using a triple quadrupole mass spectrometer for quantitation of pharmaceuticals in plasma | |
| CN102479662B (en) | Vacuum ultraviolet light ionization source used for high-flux gas sample analysis | |
| CN107658041B (en) | Rotating structure for multiple collimators of wavelength dispersion X-ray fluorescence spectrometer | |
| CN107367522B (en) | Rotating structure for multiple collimators of X-ray fluorescence spectrometer | |
| Smith et al. | An external matrix-assisted laser desorption ionization source for flexible FT-ICR mass spectrometry imaging with internal calibration on adjacent samples | |
| Liu | An introduction to hybrid ion trap/time‐of‐flight mass spectrometry coupled with liquid chromatography applied to drug metabolism studies | |
| Pu et al. | Direct quantitation of tenofovir diphosphate in human blood with mass spectrometry for adherence monitoring | |
| Lutomski et al. | Transmission geometry laserspray ionization vacuum using an atmospheric pressure inlet | |
| Yu et al. | Design and study of an atmospheric pressure ion funnel by computer simulations | |
| Fukui et al. | Rapid chiral discrimination of oncometabolite dl‐2‐hydroxyglutaric acid using derivatization and field asymmetric waveform ion mobility spectrometry/mass spectrometry | |
| Grooms et al. | Mass spectrometry for metabolomics analysis: Applications in neonatal and cancer screening | |
| Dickinson et al. | A short working distance multiple crystal x-ray spectrometer | |
| CN204536206U (en) | Rotating channel formula laser ablation pond | |
| Benton et al. | Direct and simultaneous quantitation of 5‐aminolaevulinic acid and porphobilinogen in human serum or plasma by hydrophilic interaction liquid chromatography–atmospheric pressure chemical ionization/tandem mass spectrometry | |
| Gamez et al. | Photoelectron emission as an alternative electron impact ionization source for ion trap mass spectrometry | |
| Tötzke et al. | Investigation of fuel cells using scanning neutron imaging and a focusing neutron guide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |