CN209606354U - A kind of shuttle-type shielding graphite crystal diffractometer - Google Patents
A kind of shuttle-type shielding graphite crystal diffractometer Download PDFInfo
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- CN209606354U CN209606354U CN201920042097.0U CN201920042097U CN209606354U CN 209606354 U CN209606354 U CN 209606354U CN 201920042097 U CN201920042097 U CN 201920042097U CN 209606354 U CN209606354 U CN 209606354U
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- graphite crystal
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- diffractometer
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Abstract
The utility model discloses a kind of shuttle-type to shield graphite crystal diffractometer, it includes metal shell, it further include the shielding core for having tubular graphite crystal, a pair of brackets and shape in shuttle-type, wherein the tubular graphite crystal is integrally fixedly mounted on the metal shell inner wall, the metal shell both ends are respectively and fixedly installed on a pair of bracket, and the shielding core level is fixedly mounted on the middle position of a pair of bracket；Above-mentioned graphite diffractometer in this programme its be the structure type that graphite crystal is installed using both ends bracket, cylindric graphite crystal can be integrally directly installed on brass outer casing inner wall, the existing installation steps for needing to cut graphite are omitted, simultaneously because by the way of installing shield from one end, graphite itself need not be cut into two sections, enormously simplify the processing and installation process of graphite diffractometer.
Description
Technical field
The utility model relates to x-ray fluorescence analyzer technical fields, and in particular to a kind of shuttle-type shielding graphite crystal diffractometer.
Background technique
The pre- diffracting X-rays luminoscope of graphite crystal is the dedicated analysis instrument in post-processing production and research, conventional energy
Chromatic dispersion quantity x-ray fluorescence analyzer (XRF) is generally made of X-ray tube, detector, spectrometer system and data processing system.Work as survey
When measuring the stronger post-processing sample of radioactivity, hot has certain damage, reduction hardware service life to hardware device.Together
When, the radioactivity of sample itself can greatly increase photon flux received by detector, influence the sensitivity of measurement.Earliest Russia
Ross scientist has developed the pre- diffracting X-rays luminoscope of graphite crystal, solves the problems, such as sample radioactivity influence, domestic shows
There is relevant unit to have developed the pre- diffracting X-rays luminoscope of graphite crystal, and is applied to the post-processing pilot plant in China, core
Part is graphite crystal diffractometer, and first generation graphite diffractometer structure is as shown in Figure 1, it is to paste in cylindric 1 ' inner wall of brass shell
One layer of graphite crystal 2 ', in cylinder center position, with the support of finer wire 4 ', one tungsten material of installation shields core 3 ', when ray from
When diffractometer is injected in one end, direct light (containing the radioactive ray of sample itself) is stopped by shielding core 3 ', and the X of specific wavelength is penetrated
The diffraction that line then passes through graphite enters detector, plays the role of reducing radioactive background.
In existing graphite diffractometer structure, since graphite crystal is very fragile, it is difficult to be machined, due to shielding core peace
Mounted in cylindrical center, diffractometer is made into two sections with easy to assembly for manufacture, is connected with screw, shielding core support line is compacted solid
It is fixed.There is a graphite gap among diffractometer in this way, and is on the best geometric position of diffraction.First generation diffractometer uses
Graphite planar is cut into the slice of 2mm wide, splices in brass barrel, and cutting, bonding needs are very fine, since graphite is easy
It is broken, often there is 10% or so loss.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of shuttle-type to shield graphite crystal
Diffractometer, which shields graphite crystal diffractometer, and it can also keep the complete of graphite crystal on the basis of keeping normal use
Whole property, and the installation for shielding core is simpler convenient and efficient.
To achieve the above object, the technical solution adopted in the utility model is as follows:
A kind of shuttle-type shielding graphite crystal diffractometer, the diffractometer includes metal shell, further includes having tubular graphite
Crystal, a pair of brackets and shape are in the shielding core of shuttle-type, wherein the tubular graphite crystal is integrally fixedly mounted on the gold
Belong on outer casing inner wall, the metal shell both ends are respectively and fixedly installed on a pair of bracket, and the shielding core level is fixed
It is mounted on the middle position of a pair of bracket.
Further, its both ends of the shielding core are respectively arranged with outside horizontal-extending mounting blocks, each bracket its
It is provided with the mounting groove matched with the mounting blocks, wherein the shielding core is fixedly mounted on a pair of of institute by the mounting blocks
It states on bracket.
Further, the bracket includes the annulus outer layer positioned at outer layer, the annulus internal layer positioned at internal layer and is connected to institute
State multiple connection frames between annulus outer layer and annulus internal layer.
Further, the shielding core is to be made using tungsten-copper alloy.
Further, the tubular graphite crystal is deposited directly on metal shell inner wall.
Compared with prior art, the advantageous effects that this programme has are as follows: above-mentioned graphite diffractometer in this programme its
For the structure type for installing graphite crystal using both ends bracket, cylindric graphite crystal can be integrally directly installed on outside metal
On shell inner wall, the existing installation steps for needing to cut graphite are omitted, shield simultaneously because using and being installed from one end
The mode of body is covered, graphite itself need not be cut into two sections, enormously simplify the processing and installation process of graphite diffractometer；Furthermore
Since the shielding core material in this programme is tungsten-copper alloy, shape is designed using shuttle-type, for being directed to the ray of detector
Its damage to detector can be greatly reduced, extend the service life of whole equipment.
Detailed description of the invention
Fig. 1 is existing graphite diffractometer main view direction the schematic diagram of the section structure.
Fig. 2 is that shuttle-type shields graphite crystal diffractometer structural schematic diagram in the utility model.
Fig. 3 is that shuttle-type shields graphite crystal diffractometer left view structural representation in the utility model.
Fig. 4 is that shuttle-type shields graphite crystal diffractometer schematic cross-sectional view in the utility model.
In figure:
1 '-brass shell, 2 '-graphite crystals, 3 '-shielding cores, 4 '-finer wires, 1- shield core, 2- bracket, outside 21- annulus
Layer, 22- annulus internal layer, 23- connection frame, 3- metal shell, 4- tubular graphite crystal.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawings of the specification.
This programme is the design installation for existing graphite crystal diffractometer in the presence of graphite globality is destroyed, and shields core
The defects of installation is complicated and shield effectiveness is limited, and then a kind of shuttle-type proposed shields graphite crystal diffractometer, the shuttle-type screen
Covering graphite crystal diffractometer, it can also keep the integrality of graphite crystal on the basis of keeping normal use, and shield core
Installation it is simpler convenient and efficient.
Referring to shown in attached drawing 2 to 4, the diffractometer in the present embodiment include metal shell 3 (the present embodiment aluminum shell),
Tubular graphite crystal 4, a pair of brackets 2 and shape are in the shielding core 1 of shuttle-type, and wherein tubular graphite crystal 4 is whole is fixedly mounted
On 3 inner wall of metal shell, 3 both ends of metal shell are respectively and fixedly installed in a pair of brackets 2, and shielding core 1 is horizontal to be fixedly mounted
On the middle position of a pair of brackets 2.I.e. in actual installation process, graphite crystal is installed by using the mode of Direct precipitation
On 3 inner wall of metal shell, traditional graphite cutting bonding process is eliminated, reduces loss, and maintain graphite crystal
Integrality, shielding 1 shape of core use shuttle-type contour structures, while mounting means be both ends bracket 2 fixation, that is, maintain stone
The optimum state of ink, and facilitate the installation of shielding core 1.
Specifically, its both ends of shielding core 1 in the present embodiment are respectively arranged with outside horizontal-extending mounting blocks, Mei Yizhi
It is provided with the mounting groove matched with mounting blocks with frame 2, wherein shielding core 1 is fixedly mounted in a pair of brackets 2 by mounting blocks.
Above-mentioned bracket 2 in the present embodiment it include the annulus outer layer positioned at outer layer, the annulus internal layer 22 positioned at internal layer and be connected to
Multiple connection frames 23 between annulus outer layer 21 and annulus internal layer 22.When installation, a pair of brackets 2 and 4 outer layer of tubular graphite crystal
Metal layer fix, to support fixed mask core 1.
In addition, 1 material of shielding core in the present embodiment uses tungsten-copper alloy, shape uses shuttle-type configuration design, in reality
In use, its damage to detector can be greatly reduced for the ray for being directed to detector, extend making for whole equipment hardware
Use the service life.
In conclusion graphite diffractometer in this programme its use cylindric graphite crystal, graphite cutting step is omitted
Suddenly, due to using the thinking from one end installation shield, graphite itself need not be cut into two sections, enormously simplify graphite diffraction
The processing of device, installation process.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technology, then the utility model is also intended to include these modifications and variations.
Claims (5)
1. a kind of shuttle-type shields graphite crystal diffractometer, the diffractometer includes metal shell, it is characterised in that: further includes having
Tubular graphite crystal, a pair of brackets and shape are in the shielding core of shuttle-type, wherein the tubular graphite crystal is integrally fixedly mounted
On the metal shell inner wall, the metal shell both ends are respectively and fixedly installed on a pair of bracket, the shielding core
Level is fixedly mounted on the middle position of a pair of bracket.
2. a kind of shuttle-type according to claim 1 shields graphite crystal diffractometer, it is characterised in that: the shielding core its two
End is respectively arranged with outside horizontal-extending mounting blocks, each bracket its be provided with the installation matched with the mounting blocks
Slot, wherein the shielding core is fixedly mounted on a pair of bracket by the mounting blocks.
3. a kind of shuttle-type according to claim 1 or 2 shields graphite crystal diffractometer, it is characterised in that: the bracket packet
It includes the annulus outer layer positioned at outer layer, the annulus internal layer positioned at internal layer and is connected between the annulus outer layer and annulus internal layer
Multiple connection frames.
4. a kind of shuttle-type according to claim 1 shields graphite crystal diffractometer, it is characterised in that: the shielding core is to adopt
It is made with tungsten-copper alloy.
5. a kind of shuttle-type according to claim 1 shields graphite crystal diffractometer, it is characterised in that: the tubular graphite wafer
Body is deposited directly on metal shell inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042097.0U CN209606354U (en) | 2019-01-10 | 2019-01-10 | A kind of shuttle-type shielding graphite crystal diffractometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920042097.0U CN209606354U (en) | 2019-01-10 | 2019-01-10 | A kind of shuttle-type shielding graphite crystal diffractometer |
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| CN209606354U true CN209606354U (en) | 2019-11-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709125A (en) * | 2019-01-10 | 2019-05-03 | 中国原子能科学研究院 | A kind of shuttle-type shielding graphite crystal diffractometer |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109709125A (en) * | 2019-01-10 | 2019-05-03 | 中国原子能科学研究院 | A kind of shuttle-type shielding graphite crystal diffractometer |
| CN109709125B (en) * | 2019-01-10 | 2024-05-14 | 中国原子能科学研究院 | Shuttle-type shielding graphite crystal diffractometer |
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