CN104267051B - Wire earth radiation test device and method - Google Patents
Wire earth radiation test device and method Download PDFInfo
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- CN104267051B CN104267051B CN201410449823.2A CN201410449823A CN104267051B CN 104267051 B CN104267051 B CN 104267051B CN 201410449823 A CN201410449823 A CN 201410449823A CN 104267051 B CN104267051 B CN 104267051B
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Abstract
The invention discloses a wire earth radiation test device. By adopting the wire earth radiation test device, an irradiated sample can continuously rotate at a constant speed when being irradiated, so that the uniform deposition amount of the sample during irradiation is guaranteed. The wire earth radiation test device comprises an irradiation source, a motor, a motor rotating shaft, a fixture, a vertical fixed support, a vertical movement support and a horizontal base, wherein the motor rotating shaft rotates at the constant speed which is no more than 20r/min, and the number of internal rotation turns during the irradiation is more than 10; irradiation source energy is energy corresponding to an amount deposition curve when a horizontal coordinate is (R2-R1) and a longitudinal coordinate is in a range of (R1/R2) minus or plus 15%. The wire earth radiation test device is simple in structure and easy to use, so that high-energy electrons can be uniformly deposited in cylindrical materials such as wires.
Description
Technical field
The present invention relates to radiation effect technical field, and in particular to a kind of wire terrestrial surface radiation experimental rig and method.
Background technology
Select during material, to must take into impact of the radiation to material property effect in Spacecraft guidance and control, to ensure which in sky
Between complete predetermined function in radiation environment, therefore material must carry out ground irradiation test, ground spoke before space application
Gamma ray projector and high energy electron are usually according to the simulation source that test is adopted.
High energy electron has very high close rate, can shorten the test period, improves test efficiency, but due to high energy electron
Penetration capacity it is limited, limit high energy electron as the use in Irradiation simulating source.
When using high energy electron as simulation source at present, in order to improve high energy electron deposit depth in the material, adopt
The method that turn-over is carried out to sample, for plate material, using the electronics of identical energy, can effectively improve can spoke for this kind of method
According to the thickness of material, however to evaluating with Space Radiation Effects in the cylindrical material such as wire commonly used, then can make in the material
Dosage deposition uniformity be deteriorated.
The content of the invention
In view of this, the invention provides a kind of wire terrestrial surface radiation experimental rig, enables to by irradiation sample in spoke
According to when continuously and smoothly rotate ensure sample receive irradiation dose uniform deposition.
The wire terrestrial surface radiation experimental rig of the present invention, including it is irradiation bomb, motor, motor rotary shaft, fixture, vertical solid
Fixed rack, vertically moving support and horizontal base, wherein, vertical fixed support is fixedly mounted on horizontal base；Motor is solid
Dingan County is mounted in vertical fixed support, and motor rotary shaft passes through vertical fixed support；Fixture is fixedly mounted on motor rotary shaft；
Vertically moving support is arranged on horizontal base, relative with vertical fixed support, can be moved along horizontal base；Vertically moving support
Perforate is provided with the relative position of motor rotary shaft；Wherein, motor rotary shaft average rate rotation, rotating speed is less than 20 revs/min, and spoke
It is more than 10 according to the number of turns is rotated in the time；
The determination mode of radiant source is：Abscissa is found from the ordinate dosage sedimentation curve group of the insulating layer material of wire
For (R2-R1) when, vertical coordinate is in (R1/R2) ordinate dosage sedimentation curve in the range of ± 15%, the corresponding energy of ordinate dosage sedimentation curve is
For radiant source, wherein, R2For the radius of wire insulation, R1For the radius of wire copper core.
Wherein, the fixture, vertical fixed support, vertically moving support and horizontal base are made using duralumin material.
One kind enters row conductor terrestrial surface radiation test method using above-mentioned wire terrestrial surface radiation experimental rig, including following step
Suddenly：
Step 1, wire is placed in wire terrestrial surface radiation experimental rig, and wire one end is fixed by fixture, and the other end is put
Put in the hole of vertically moving support, the distance between vertically moving support and vertical fixed support are arranged according to conductor length；
Step 2, wire terrestrial surface radiation experimental rig is placed on below irradiation bomb, adjusts motor speed so that electronic
Machine at the uniform velocity rotates, and the number of turns is rotated in the exposure time of regulation more than 10, and motor speed is less than 20 revs/min；
Step 3, according to ordinate dosage sedimentation curve of the different-energy high energy electron in wire insulation layer material, selects abscissa
For (R2-R1) when, vertical coordinate is in (R1/R2) ordinate dosage sedimentation curve in the range of ± 15%, the corresponding energy of ordinate dosage sedimentation curve is
For radiant source, radiation dose rate is to require close rate, and irradiation test, the exposure time that irradiation specifies are carried out to wire.
Beneficial effect：
Present configuration is simple, easy to use, can cause high energy electron uniform deposition in the cylindrical materials such as wire.
Description of the drawings
Fig. 1 is apparatus of the present invention structural representation.
Fig. 2 is wire gauge schematic diagram.
Ordinate dosage sedimentation curves of the Fig. 3 for typical high energy electron (1Mev) in material (politef).
Schematic diagram when Fig. 4 is wire irradiation.
Wherein, 1- motor (attached deceleration device), 2- motor rotary shafts, 3- fixtures, 4- vertical fixed supports, 5- are vertically moved
Dynamic support, 6- horizontal bases, 7- wires.
Specific embodiment
Develop simultaneously embodiment below in conjunction with the accompanying drawings, describes the present invention.
The invention provides a kind of wire terrestrial surface radiation experimental rig, as shown in figure 1, including motor 1, motor rotary shaft
2nd, fixture 3, vertical fixed support 4, vertically moving support 5 and horizontal base 6, wherein, vertical fixed support 4 is fixedly mounted on water
On flat bed 6；Motor 1 is fixedly mounted in vertical fixed support 4, and motor rotary shaft 2 passes through vertical fixed support 4；Fixture 3
It is fixedly mounted on motor rotary shaft 2, for clamping wire 7；Vertically moving support 5 is arranged on horizontal base 6, solid with vertical
Fixed rack 4 is relative, and vertically moving support 5 is provided with perforate in the relative position of motor rotary shaft 2, for supporting wire 7, vertical to move
Dynamic support 5 can be moved along horizontal base, arranged between vertical fixed support 4 and vertically moving support 5 according to the length of wire 7
Distance.
The present invention makes specimen material at the uniform velocity be rotated in irradiation using this telecontrol equipment, makes irradiation dose in material
Middle uniform deposition, is adapted to the high-energy electron irradiation test of the cylindrical materials such as wire.
Wherein, as aluminum is in irradiation, less is affected on irradiation field, therefore, fixture 3, vertical fixed support 4, vertical shifting
Dynamic support 5 and horizontal base 6 are made using duralumin material.
Motor rotary shaft 2 can not be controlled when rotating in view of motor 1 completely and rotate whole circle, cause irradiation occur uneven
Situation, analysis understand, in exposure time, when the motor rotation number of turns be more than 10 when, it is ensured that inhomogeneities be less than 5%,
Therefore, in irradiation test, control exposure time built-in motor rotates the number of turns and is more than 10.Meanwhile, if motor speed is too fast,
Wire 7 may be worn at vertically moving support 5, therefore, general control motor speed is less than 20 revs/min.For this purpose,
On motor, additional deceleration device is realizing motor speed control.
During wire uniform rotation, the size of beam energy is also had an impact to the uniformity of deposition, and energy is too little, then turning
Uniform deposition can not be realized in during dynamic；Energy is too big, then deposit depth is through irradiated one side of something but fails to completely penetrate through
Whole material, affects second half deposition uniformity；If energy is sufficiently large, deposit depth is then not required to more than the diameter of material
Apparatus of the present invention are wanted just to realize irradiation test.
For this cylinder such as wire, as shown in Fig. 2 including insulating barrier and copper core, wherein, the radius of insulating barrier is
R2, the radius of copper core is R1, it is contemplated that electron beam irradiation is in cylinder internal layer, although energy is reduced, but while its irradiation face
Product is also reduced, it is therefore possible to use the mode of same irradiation density (irradiation energy/irradiated area) is realized inside and outside cylinder
Irradiation uniformity, i.e.,：
Wherein, 2 π R2It is that radius is R2Circumference, will radius be R2Circular column draft into surface area during plane；2π
R1It is that radius is R1Circumference, will radius be R1Circular column draft into surface area during plane；D2It is the electronics of particular energy
It is deposited on the energy on surface；D1It is corresponding to be deposited on (R2-R1) place energy.
Due to electron-beam dose sedimentation curve it is relevant with exposed material, beam energy, accordingly, it is determined that after exposed material,
Irradiation is carried out using the electron beam of different-energy to wire insulation layer material, ordinate dosage sedimentation curve group is obtained；It is bent in dosage deposition
In line group, selection abscissa is (R2-R1) when, vertical coordinate is in (R1/R2) ordinate dosage sedimentation curve in the range of ± 15%, the dosage
The beam energy that the corresponding electron energy of sedimentation curve is as selected.
For example, certain wire external layer insulant be politef, its radius R2For 4mm；Internal layer is copper core, radius R1For
1mm；Need electron irradiation 10 minutes.First wire is placed in wire terrestrial surface radiation experimental rig, wire one end is by fixture 3
Fixed, the other end is placed in the hole of vertically moving support 5, arranges vertically moving support 5 according to conductor length fixed with vertical
The distance between support 4；Then wire terrestrial surface radiation experimental rig is placed on below electron beam, as shown in figure 4, need not
Shielded where irradiation, adjustment motor speed is 10 revs/min, according to R2-R1=3mm, 2 π R1/2πR2=1/4=
25%, and knowable to ordinate dosage sedimentation curve (Fig. 3) of the high energy electron (1Mev) in polytetrafluoroethylmaterial material, 1MeV electron beams symbol
Close and require, therefore, selection beam energy is 1MeV, and close rate is to require that close rate carries out irradiation test to wire, during irradiation
Between be 10 minutes.Thus, it is possible to guarantee uniformity of the wire by irradiation dose.
In sum, presently preferred embodiments of the present invention is these are only, is not intended to limit protection scope of the present invention.
All any modification, equivalent substitution and improvements within the spirit and principles in the present invention, made etc., should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of wire terrestrial surface radiation experimental rig, it is characterised in that include：Motor (1), motor rotary shaft (2), fixture
(3), vertical fixed support (4), vertically moving support (5) and horizontal base (6), wherein, vertical fixed support (4) fixed installation
On horizontal base (6)；Motor (1) is fixedly mounted in vertical fixed support (4), and motor rotary shaft (2) is through vertically admittedly
Fixed rack (4)；Fixture (3) is fixedly mounted on motor rotary shaft (2)；Vertically moving support (5) is installed in horizontal base (6)
On, it is relative with vertical fixed support (4), can move along horizontal base；Phase of the vertically moving support (5) in motor rotary shaft (2)
Para-position has installed perforate；Wherein, motor rotary shaft (2) average rate rotation, rotating speed are less than 20 revs/min, and rotate in exposure time
The number of turns is more than 10；
The determination mode of radiant source is：From the ordinate dosage sedimentation curve group of the insulating layer material of wire finding abscissa is
(R2-R1) when, vertical coordinate is in (R1/R2) ordinate dosage sedimentation curve in the range of ± 15%, the corresponding energy of ordinate dosage sedimentation curve is
Radiant source, wherein, R2For the radius of wire insulation, R1For the radius of wire copper core.
2. wire terrestrial surface radiation experimental rig as claimed in claim 1, it is characterised in that the fixture (3), vertical fixed
Frame (4), vertically moving support (5) and horizontal base (6) are made using duralumin material.
3. a kind of wire terrestrial surface radiation test method, it is characterised in that using wire ground as claimed in claim 1 or 2 spoke
Penetrating assay device carries out irradiation test, comprises the following steps that：
Step 1, wire is placed in wire terrestrial surface radiation experimental rig, and wire one end is fixed by fixture (3), and the other end is placed
In the hole of vertically moving support (5), arranged between vertically moving support (5) and vertical fixed support (4) according to conductor length
Distance；
Step 2, wire terrestrial surface radiation experimental rig is placed on below radiation source, adjusts motor speed so that motor is even
Speed rotation, and the number of turns is rotated in the exposure time of regulation more than 10, and motor speed is less than 20 revs/min；
Step 3, according to ordinate dosage sedimentation curve of the different-energy high energy electron in wire insulation layer material, selection abscissa is
(R2-R1) when, vertical coordinate is in (R1/R2) ordinate dosage sedimentation curve in the range of ± 15%, the corresponding energy of ordinate dosage sedimentation curve is
Radiant source, radiation dose rate carry out irradiation test, the exposure time that irradiation specifies to require close rate to wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449823.2A CN104267051B (en) | 2014-09-05 | 2014-09-05 | Wire earth radiation test device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410449823.2A CN104267051B (en) | 2014-09-05 | 2014-09-05 | Wire earth radiation test device and method |
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| CN104267051A CN104267051A (en) | 2015-01-07 |
| CN104267051B true CN104267051B (en) | 2017-05-03 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180951B1 (en) * | 1999-08-06 | 2001-01-30 | Nutek Corporation | Process for irradiation producing constant depth/dose profile |
| CN201163547Y (en) * | 2008-01-29 | 2008-12-10 | 天津滨海北方辐照技术有限公司 | Lower irradiation device for tube bundle |
| CN102967658A (en) * | 2012-12-07 | 2013-03-13 | 钢铁研究总院 | Electromagnetic ultrasonic energy converter for automatic detection of surface of steel rod |
| CN103226167A (en) * | 2013-04-24 | 2013-07-31 | 兰州空间技术物理研究所 | Conductivity measurement device and method of dielectric material |
| CN103971780A (en) * | 2013-12-24 | 2014-08-06 | 中国科学院上海应用物理研究所 | Supporting device for X-ray conversion target of irradiating accelerator |
-
2014
- 2014-09-05 CN CN201410449823.2A patent/CN104267051B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6180951B1 (en) * | 1999-08-06 | 2001-01-30 | Nutek Corporation | Process for irradiation producing constant depth/dose profile |
| CN201163547Y (en) * | 2008-01-29 | 2008-12-10 | 天津滨海北方辐照技术有限公司 | Lower irradiation device for tube bundle |
| CN102967658A (en) * | 2012-12-07 | 2013-03-13 | 钢铁研究总院 | Electromagnetic ultrasonic energy converter for automatic detection of surface of steel rod |
| CN103226167A (en) * | 2013-04-24 | 2013-07-31 | 兰州空间技术物理研究所 | Conductivity measurement device and method of dielectric material |
| CN103971780A (en) * | 2013-12-24 | 2014-08-06 | 中国科学院上海应用物理研究所 | Supporting device for X-ray conversion target of irradiating accelerator |
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| CN104267051A (en) | 2015-01-07 |
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