CN204044372U - A kind of detector fixture and single focal spot measurement mechanism - Google Patents
A kind of detector fixture and single focal spot measurement mechanism Download PDFInfo
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- CN204044372U CN204044372U CN201420514142.5U CN201420514142U CN204044372U CN 204044372 U CN204044372 U CN 204044372U CN 201420514142 U CN201420514142 U CN 201420514142U CN 204044372 U CN204044372 U CN 204044372U
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Abstract
The utility model discloses a kind of detector fixture and single focal spot measurement mechanism that belong to focal spot field of measuring technique.The detector fixture provided: detector mount body has the first through hole, described in the bottom vertical of detector mount body, the first through hole is provided with the first groove as slide rail, this first groove is communicated with described first through hole, ray catch is placed in described first groove, ray catch is provided with the second groove, adjusting knob is connected with one end of displacement lever through cover plate, the other end of displacement lever is placed in the second groove of ray catch, displacement lever has the second through hole for being inserted in axle, described axle is fixed in described detector mount body, displacement lever can pivot, adjusting knob adopts with cover plate and is threaded.Additionally provide the single focal spot measurement mechanism comprising described detector fixture, the utility model can accurately control X ray amount of incident, focal spot is measured more convenient, accurate.
Description
Technical field
The utility model relates to focal spot field of measuring technique, particularly relates to a kind of detector fixture and single focal spot measurement mechanism.
Background technology
In radiant image, comprise the technology such as medical imaging, industry CT, spark photograph, the focal spot size of x-ray source after hyperboloid type bent crystal diffraction is the key factor directly affecting image resolution ratio.Focal spot is less, and image resolution ability is higher.Rely on effective focal spot size diagnostic device, accurately provide focal spot geometric configuration and size after crystal diffraction, assess its influence on RT, significant to the performance evaluation of radiant image.
Knife-edge method is the method for traditional measurement focal spot size, and this is a kind of ancient method, is one of conventional radiographic source diagnostic method, can obtains the image that signal to noise ratio (S/N ratio) is higher.In the method, accurately control X ray amount of incident most important for measurement result, but in prior art, also do not have the focal spot measurement mechanism that accurately can control X ray amount of incident.
Utility model content
The utility model object is to provide a kind of detector fixture and single focal spot measurement mechanism.
The utility model technical solution problem adopts following technical scheme:
(1) a kind of detector fixture, comprise detector mount body, ray catch, displacement lever and adjusting knob, detector mount body has the first through hole, this first through hole and detector adapt, for part or all of detector is put into wherein, described in the bottom vertical of detector mount body, the first through hole is provided with the first groove as slide rail, this first groove is communicated with described first through hole, ray catch is placed in described first groove, ray catch is provided with the second groove, , adjusting knob is connected with one end of displacement lever through cover plate, the other end of displacement lever is placed in the second groove of ray catch, displacement lever has the second through hole for being inserted in axle, described axle is fixed in described detector mount body, displacement lever can pivot, adjusting knob adopts with cover plate and is threaded.
Displacement lever can be placed in the 3rd groove that is located in detector mount body.This kind of design can make the more compact structure of detector fixture.
Cover plate and detector mount body can adopt screw to be connected.
Rotation of adjustment knob can drive displacement lever, thus makes ray catch produce displacement.
Adjusting knob and cover plate preferably adopt fine thread to be connected, the amount of movement of ray catch is very little, it moves and is controlled by adjusting knob, adjusting knob is through displacement lever drives ray catch, lever drives ray catch is promoted during turn, make ray catch produce microdisplacement, incident ray amount produces trace change.
By mobile ray catch, make incident ray amount by maximum progressively vanishing, or progressively become maximum from zero, the edge of this catch is narrower, can control amount of incident more exactly.
Optionally, adjusting knob also arranges scale mark dish, it has rotating scale, in order to mark the rotation radian of adjusting knob.Each circle can be provided with multiple scale, makes the precision of adjustment higher.
Optionally, detector fixture is arranged graduation indication sheet, in order to give the displacement of emerging ray catch.
Between ray catch and cover plate, arrange shell fragment, arranging when can make the displacement of ray catch of shell fragment is more stable, and when adjusting knob is to readjustment, shell fragment can by ray catch toward resilience.
(2) the utility model also provides a kind of single focal spot measurement mechanism, it is characterized in that: containing the detector fixture described in detector and (1), the first through hole on described detector fixture and detector adapt, for being put into wherein by part or all of detector.
Detector fixture is by fixing voussoir fixed detector.X ray is injected at the bottom of hole.
In the utility model, the existing detector for measuring x-ray focal spot selected by detector.Such as can adopt " detector (nuclear electron and Detection Techniques, volume the 6th phase June the 30th in 2010, inventor: Song turns round and look at week etc.) in the knife-edge method measurement of contracting diode x-ray source focal spot shown in measuring system ".
The utility model has following beneficial effect: the detector fixture that the utility model provides, and single focal spot measurement mechanism that detector fixture tie detector is formed can accurately control X ray amount of incident, focal spot is measured more convenient, accurate.
Accompanying drawing explanation
Fig. 1 is the detector fixture schematic diagram of the utility model embodiment 1;
Fig. 2 is the ray catch schematic diagram in the detector fixture of the utility model embodiment 1;
Fig. 3 is the first groove schematic diagram in the detector fixture of the utility model embodiment 1;
Fig. 4 is single focal spot measurement mechanism front view of the utility model embodiment 5;
Fig. 5 is the A-A view in Fig. 4;
Fig. 6 is single focal spot measurement mechanism stereographic map of the utility model embodiment 5;
In figure, mark is illustrated as:
Number in the figure: 1-detector; 2-detector fixture; 3-ray catch; 4-detector mount body; 5-displacement lever; 6-adjusting knob; 7-graduation indication sheet; 8-scale mark dish; 9-fixes voussoir; 10-first through hole, 11-groove, 12-axle, 13-shell fragment, 14-first groove, 15-second through hole, 16-cover plate, 17-the 3rd groove.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
Present embodiments provide a kind of detector fixture, as shown in Figure 1, comprise detector mount body 4, ray catch 3, displacement lever 5 and adjusting knob 6, detector mount body 4 has the first through hole 10, this first through hole and detector adapt, for part or all of detector 1 is put into wherein, described in the bottom vertical of detector mount body 4, the first through hole is provided with the first groove 14 as slide rail, first groove schematic diagram as shown in Figure 3, this first groove 14 is communicated with described first through hole 10, ray catch 3 is placed in described first groove 14, ray catch 3 is provided with the second groove 11, adjusting knob 6 is connected with one end of displacement lever 5 through cover plate 16, the other end of displacement lever 5 is placed in the second groove 11 of ray catch 3, displacement lever 5 has the second through hole 15 for being inserted in axle 12, described axle 12 is fixed in described detector mount body 4, displacement lever 5 can rotate around axle 12, adjusting knob 6 adopts with cover plate 16 and is threaded.
Displacement lever can be placed in the 3rd groove 17 that is located in detector mount body.This kind of design can make the more compact structure of detector fixture.
Cover plate 16 and detector mount body can adopt screw to be connected.
Rotation of adjustment knob 6 can drive displacement lever 5, thus makes ray catch 3 produce displacement.Ray catch schematic diagram as shown in Figure 2.
Adjusting knob 6 preferably adopts fine thread to be connected with cover plate 16, the amount of movement of ray catch 3 is very little, it moves and is controlled by adjusting knob 6, adjusting knob 6 drives ray catch 3 through displacement lever 5, lever drives ray catch is promoted during turn, make ray catch produce microdisplacement, incident ray amount produces trace change.
By mobile ray catch, make incident ray amount by maximum progressively vanishing, or progressively become maximum from zero, the edge of this catch is narrower, can control amount of incident more exactly.
Embodiment 2
The detector fixture that the present embodiment provides, adjusting knob 6 also arranges scale mark dish, it has rotating scale, in order to mark the rotation radian of adjusting knob.Each circle can be provided with multiple scale, makes the precision of adjustment higher.All the other are identical with embodiment 1.
Embodiment 3
On the basis of the detector fixture of embodiment 1 or embodiment 2, detector mount body 4 also arranges graduation indication sheet 7, in order to give the displacement of emerging ray catch.
Embodiment 4
On the basis of the detector fixture of embodiment 1, embodiment 2 or embodiment 3, shell fragment 13 is set between ray catch 3 and cover plate 16, arranging when can make 3 displacement of ray catch of shell fragment 13 is more stable, and when adjusting knob is to readjustment, shell fragment can by ray catch toward resilience.
Embodiment 5
Present embodiments provide a kind of single focal spot measurement mechanism, containing the detector fixture described in embodiment 1, embodiment 2, embodiment 3 or embodiment 4 and detector 1.The first through hole on described detector fixture and detector 1 adapt, for being put into wherein by part or all of detector 1.As shown in Figure 6, as shown in Figure 4, the A-A view in Fig. 4 as shown in Figure 5 for front view for single focal spot measurement mechanism stereographic map.
Detector fixture 2 is by fixing voussoir 9 fixed detector 1.X ray is injected at the bottom of hole.
The sequencing of above embodiment, only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a detector fixture, it is characterized in that: comprise detector mount body (4), ray catch (3), displacement lever (5) and adjusting knob (6), detector mount body (4) has the first through hole (10), first through hole described in bottom vertical in detector mount body (4) is provided with the first groove (14) as slide rail, this first groove (14) is communicated with described first through hole (10), ray catch (3) is placed in described first groove (14), ray catch (3) is provided with the second groove (11), adjusting knob (6) is connected through cover plate (16) one end with displacement lever (5), the other end of displacement lever (5) is placed in second groove (11) of ray catch (3), displacement lever (5) has the second through hole (15) for being inserted in axle (12), described axle (12) is fixed on described detector mount body (4), displacement lever (5) can rotate around axle (12), adjusting knob (6) adopts with cover plate (16) and is threaded.
2. detector fixture according to claim 1, is characterized in that: displacement lever is placed in the 3rd groove (17) that is located in detector mount body.
3. detector fixture according to claim 1, is characterized in that: cover plate (16) adopts screw to be connected with detector mount body (4).
4. detector fixture according to claim 1, is characterized in that: rotation of adjustment knob (6) can drive displacement lever (5), thus makes ray catch (3) produce displacement.
5. detector fixture according to claim 1, is characterized in that: adjusting knob (6) adopts fine thread to be connected with cover plate (16).
6. detector fixture according to claim 1, is characterized in that: on adjusting knob (6), also arrange scale mark dish, it has rotating scale.
7. detector fixture according to claim 1, is characterized in that: detector fixture (2) is arranged graduation indication sheet (7).
8. detector fixture according to claim 1, is characterized in that: between ray catch (3) and cover plate, arrange shell fragment (13).
9. a single focal spot measurement mechanism, it is characterized in that: containing the detector fixture in detector (1) and claim 1 to 8 described in any one claim, the first through hole on described detector fixture and detector (1) adapt, for being put into wherein by part or all of detector (1).
10. single focal spot measurement mechanism according to claim 9, is characterized in that: detector fixture (2) is by fixing voussoir (9) fixed detector (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514142.5U CN204044372U (en) | 2014-09-09 | 2014-09-09 | A kind of detector fixture and single focal spot measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514142.5U CN204044372U (en) | 2014-09-09 | 2014-09-09 | A kind of detector fixture and single focal spot measurement mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN204044372U true CN204044372U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420514142.5U Active CN204044372U (en) | 2014-09-09 | 2014-09-09 | A kind of detector fixture and single focal spot measurement mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN204044372U (en) |
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2014
- 2014-09-09 CN CN201420514142.5U patent/CN204044372U/en active Active
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| C14 | Grant of patent or utility model | ||
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| CP02 | Change in the address of a patent holder |
Address after: 101102 Room 101, 1st floor, building 21, yard 2, huanke Middle Road, Tongzhou District, Beijing Patentee after: BEIJING ANCHOR WISDOM TECHNOLOGY Co.,Ltd. Address before: 100024 room 212, Beijing wuseshi Hotel, Guanzhuang courtyard, Chaoyang District, Beijing Patentee before: BEIJING ANCHOR WISDOM TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |