CN104793233A - Particle beam image coating for spallation neutron source and preparation method thereof - Google Patents
Particle beam image coating for spallation neutron source and preparation method thereof Download PDFInfo
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- CN104793233A CN104793233A CN201510185400.9A CN201510185400A CN104793233A CN 104793233 A CN104793233 A CN 104793233A CN 201510185400 A CN201510185400 A CN 201510185400A CN 104793233 A CN104793233 A CN 104793233A
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- 238000000576 coating method Methods 0.000 title claims abstract description 99
- 239000011248 coating agent Substances 0.000 title claims abstract description 88
- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 239000002245 particle Substances 0.000 title claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 70
- 238000010285 flame spraying Methods 0.000 claims abstract description 30
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052593 corundum Inorganic materials 0.000 claims abstract 5
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract 5
- 238000010884 ion-beam technique Methods 0.000 claims abstract 2
- 238000005507 spraying Methods 0.000 claims description 38
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 11
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims description 11
- 239000001301 oxygen Substances 0.000 claims description 11
- 229910052760 oxygen Inorganic materials 0.000 claims description 11
- 239000000446 fuel Substances 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 3
- 239000004480 active ingredient Substances 0.000 claims description 2
- 229940098458 powder spray Drugs 0.000 claims 1
- 238000009826 distribution Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 description 52
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 20
- 238000004020 luminiscence type Methods 0.000 description 19
- 238000011160 research Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 8
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000004448 titration Methods 0.000 description 5
- 238000002441 X-ray diffraction Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005474 detonation Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
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- 238000010304 firing Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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- Coating By Spraying Or Casting (AREA)
Abstract
The application discloses a particle beam image coating for a spallation neutron source and a preparation method thereof. The image coating for the spallation neutron source target body is coated on the outer surface of a front window of a bombarded target body, and the main active component of the image coating is Cr3+Doped Al2O3And (3) powder. The preparation method comprises the step of mixing Cr3+Doped Al2O3And the powder is coated on the outer surface of the front window of the target body in a low-power flame spraying mode to form an image coating. The image coating is especially developed for a spallation neutron source, and is a spallation neutron source which uses the image coating for the second time in the world after the U.S. spallation neutron source; the image coating has high luminous efficiency, and can meet the use requirements of accurately judging beam distribution and intensity of a target body position when particle beams such as high-energy proton beams or ion beams and the like are bombarded; lays a foundation for further research and development of the spallation neutron source in China.
Description
Technical field
The application relates to spallation neutron target target body particle beams imaging field, particle beams image coating particularly relating to a kind of spallation neutron target and preparation method thereof.
Background technology
CSNS is national major science and technology infrastructure projects project, and it is one and understands the instrument of microworld with neutron; For China is in the fundamental research in the Frontier fields such as physics, chemistry, life science, material science, nano science, medicine, national defence scientific research and novel nuclear energy exploitation with new and high technology development research provides one newly to enter, powerful big science research platform.CSNS is the First spallation neutron target that developing country has, and with the U.S. run, Japan together with Britain spallation neutron target, forms the large pulse spallation neutron target in the world four.
Wherein, the neutron of spallation neutron target is produced by high energy proton line bombardment heavy metal target body, in order to accurately judge that high energy proton line bombards position and the line distribution of target body, the method of current use is, increase by a layer image coating on metal target body front window surface, during incident this image coating of particle beam bombardment, image coating can send the light of particular range of wavelengths, collected by light that image coating is sent, draw and imaging, can judge that high energy proton line bombards distribution and the intensity of window position before target body.
Because this large-scale big science infrastructure of spallation neutron target is relatively less, correlative study report is also very limited, comprises in four large pulse spallation neutron target of China, also only has the related introduction having image coating in the spallation neutron target of the U.S.; And be also only limitted to introduce the accurate judgement that can realize bombardment target body by image coating, as the concrete composition of its image coating, how image coating is prepared etc. was not all announced.
Summary of the invention
The object of the application is to provide a kind of particle beams image coating being specially adapted to spallation neutron target target body newly, and preparation method thereof.
The application have employed following technical scheme:
This application discloses a kind of particle beams image coating for spallation neutron target target body, image coating is coated on by window outer surface before the target body that bombards, and the main active ingredient of image coating is Cr
3+the Al of doping
2o
3powder.
It should be noted that, because current spallation neutron target equipment is in the world little, the introduction about image coating only only has the spallation neutron target of the U.S. to mention, and correlation technique is all in confidential state; Therefore, how selecting suitable coating material, ensure effective luminescence efficiency, is vital to obtaining accurate image.The application, through a large amount of research and analysis, finally thinks Cr
3+the Al of doping
2o
3powder is as coating, and the ruddiness of the specific wavelength produced, can meet the image coating demand of spallation neutron target.Be appreciated that follow-up light path is drawn and optical analysis, adopt traditional optical system, do not tire out at this and state.
Preferably, Cr in image coating
3+doping be the 1%-5% of general assembly (TW).It should be noted that, the research according to the application shows, Cr
3+doping can affect the luminescence efficiency of image coating, the preferred Cr of the application
3+doping be the 1%-5% of general assembly (TW).
Preferably, Al
2o
3in powder, more than 86% is α phase powder.It should be noted that, the research according to the application shows, α phase Al
2o
3material impact is had, Al to luminescence efficiency
2o
3the Al of α phase in powder
2o
3content is more, and luminescence efficiency is higher; And α phase Al
2o
3content except depending on Al
2o
3beyond the production technology of powder, research confirms, the mode that coating forms image coating also can affect α phase Al in final image coating
2o
3content; That is, even if coating raw material in Al
2o
3all α phase, but, in the process of coating, adopt different coating methods, understand in various degree, have the Al of part α phase
2o
3convert other phase to, thus the luminescence efficiency of the image coating of the final preparation of impact.The research display of the application, coating methods all at present, all cannot avoid the Al of α phase
2o
3convert other phase to, and, be also difficult to reach more than 86% for α phase powder in final image coating.For this reason, the application is according to Cr
3+the Al of doping
2o
3powder works out special spraying method, and is optimized its spraying conditions in preferred scheme, thus makes Al in final image coating
2o
3powder can reach more than 86% for α phase powder, and to ensure luminescence efficiency, this will introduce later in detail.
The another side of the application discloses the preparation method of the image coating of a kind of the application, comprises preparation Cr
3+the Al of doping
2o
3powder, then, adopts the mode of flame spraying by Cr
3+the Al of doping
2o
3powder spray is coated onto window outer surface before target body, and flame spraying is low-power spraying.
It should be noted that, the application finds through large quantity research, flame spraying, and particularly lower powered flame spraying reasonablely can avoid the Al of α phase
2o
3convert other phase to.Preferably, in lower powered flame spraying, spraying fuel acetylene and oxygen proportion are between 40%-60%.
Preferably, spraying fuel acetylene and oxygen proportion are between 45%-50%.
Preferably, Cr
3+the Al of doping
2o
3powder adopts Co deposited synthesis.It should be noted that, the Cr of this example preparation
3+the Al of doping
2o
3in powder, Al
2o
3powder is substantially all α phase Al
2o
3, this can improve α phase Al in final image coating as far as possible
2o
3content, coordinate the low-power flame spraying of the application, the Al of in final image coating more than 86% can be made
2o
3powder is α phase.
Preferably, the raw material of chemical synthesis is Al salt and Cr salt.It should be noted that, chemical synthesis prepares Cr
3+the Al of doping
2o
3powder, its aluminium source and chromium source have a variety of, in the application, ensure the final Cr prepared in order to as far as possible effective
3+the Al of doping
2o
3al in powder
2o
3powder is α phase, preferably adopts Al (NO
3)
39H
2o, Cr (NO
3)
39H
2o is starting material; The Cr that can meet the application's needs also can be prepared in aluminium source and the chromium source of not getting rid of other
3+the Al of doping
2o
3powder.
Preferably, Cr
3+the Al of doping
2o
3in powder, Cr
3+doping be the 1.5%-2% of general assembly (TW).It should be noted that, according to the research of the application, Cr
3+doping is the essential condition producing specific wavelength ruddiness, but the too much or very few luminescence efficiency being all unfavorable for reaching required for the application of its content, therefore, the application preferably adopts Cr
3+doping be the 1%-5% of general assembly (TW), to ensure the luminescence efficiency of prepared image coating.
The one side again of the application discloses, a kind of Cr
3+the Al of doping
2o
3the application of powder in the image coating of spallation neutron target target body, wherein, Cr
3+the amount of doping is the 1%-5% of powder general assembly (TW), and this application comprises, with Cr
3+the Al of doping
2o
3powder is starting material, by lower powered flame spraying by Cr
3+the Al of doping
2o
3powder spray is coated onto by window outer surface before the target body that bombards, forms image coating.
The beneficial effect of the application is:
The image coating of the application is especially for spallation neutron target development, and after Shi Ji U.S. spallation neutron target, second uses the spallation neutron target of image coating in the world; The image coating luminescence efficiency of the application is high, can meet and accurately judge the line distribution of high energy proton line in target body position and the user demand of intensity; For the further research and development of China's spallation neutron target is laid a good foundation.
Accompanying drawing explanation
Fig. 1 is to Al in the embodiment of the present application
2o
3the phase structure of powder carries out the XRD analysis figure analyzed, wherein, and 11 Cr prepared for embodiment
3+the Al of doping
2o
3the analytic curve of powder, the analytic curve of the 12 image coatings prepared for high power flame spraying, the analytic curve of the 13 image coatings prepared for low-power flame spraying;
Fig. 2 is the result figure of the luminous intensity of image coating in the embodiment of the present application, wherein, and the luminous intensity of the 21 image coatings prepared for high power flame spraying, the luminous intensity of the 22 image coatings prepared for low-power flame spraying;
Fig. 3 is the result figure of the luminous intensity of the image coating that in another embodiment of the application, different spraying method obtains, wherein, the luminous intensity of the 31 image coatings prepared for plasma spray coating, the luminous intensity of the 32 image coatings prepared for detonation flame spraying, the luminous intensity of the 33 image coatings prepared for flame spraying.
Embodiment
Because existing spallation neutron target equipment is little, relevant research report is also very limited, and the image coating of spallation neutron target target body only has the spallation neutron target of the U.S. to mention especially; This brings great difficulty to the image coating of China's research spallation neutron target target body.
The application confirms through large quantifier elimination, Cr
3+the Al of doping
2o
3powder, the ruddiness of the particular range of wavelengths sent after being bombarded by incident particle bundle, can be applicable to spallation neutron target.But, although Cr
3+the Al of doping
2o
3image coating prepared by powder can be applicable to spallation neutron target; But the Cr prepared by existing production technology
3+the Al of doping
2o
3powder, prepared image coating luminescence efficiency is lower.
Further investigation through applicant finds, the luminescence efficiency of image coating is with Al
2o
3in powder, the ratio of alpha-phase aluminum oxide becomes positive correlation, and that is, the content of alpha-phase aluminum oxide is higher, and luminescence efficiency is stronger.For this reason, the application is especially to preparation Cr
3+the Al of doping
2o
3raw material and the preparation method of powder are studied, and find with Al (NO
3)
39H
2o and Cr (NO
3)
39H
2o is raw material, adopts the Cr of chemical method synthesis
3+: Al
2o
3in powder, the content of alpha-phase aluminum oxide is higher, is all alpha-phase aluminum oxide substantially.The application's employing is all the Cr of alpha-phase aluminum oxide substantially
3+: Al
2o
3powder has prepared image coating, but result is still undesirable, and the luminescence efficiency of image coating is still on the low side.
Further research finds, although the Cr adopted
3+: Al
2o
3be all alpha-phase aluminum oxide substantially in powder, but in the image coating finally prepared, the content of alpha-phase aluminum oxide is relatively low after coating, that is, in the process of coating, alpha-phase aluminum oxide conversion is in order to other phase.For this reason, applicant tests different coating methods, found that, different coating methods, and alpha-phase aluminum oxide in various degree all can be had to be converted to other phase; That is, the conversion of alpha-phase aluminum oxide cannot be avoided during coating.In order to obtain as far as possible high luminescence efficiency, after the various spraying method of the application's comparative study, image coating is prepared in final preferably employing flame spraying, and find in deep research, particularly lower powered flame spraying, the conversion of alpha-phase aluminum oxide can be suppressed to greatest extent, in the image coating prepared by ensureing more than 86% Al
2o
3powder is alpha-phase aluminum oxide, and with the bond strength that target front window has had, the luminescence efficiency of image coating can be met user demand that spallation neutron target accurately judges the high energy proton line bombardment position of target body and line distribution.
By reference to the accompanying drawings the application is described in further detail below by specific embodiment.Following examples are only further described the application, should not be construed as the restriction to the application.
Embodiment
This example is with Al (NO
3)
39H
2o, Cr (NO
3)
39H
2o is raw material, adopts chemical synthesis to prepare Cr
3+: Al
2o
3powder, specific as follows:
By Al (NO
3)
39H
2o and Cr (NO
3)
39H
2o is placed in nitrate solution makes it fully dissolve, and the pH value of nitrate solution is about 4; Then to titration citric acid in solution, titration limit, limit rapid stirring solution, rate of titration remains on 1.5mL/min, citric acid total after titration: (Al
3++ Cr
3+) thing mass ratio about 10, titration completes, the colloidal sol of generation, i.e. presoma; Adopt alcohol repeatedly to rinse sediment, after alcohol rinse completes, at 60-80 degree, presoma is dry, then under 1220 degree, calcining obtains Cr
3+: Al
2o
3powder.Control Al (NO
3)
39H
2o and Cr (NO
3)
39H
2the consumption of O, makes prepared Cr
3+: Al
2o
3in powder, Cr
3+doping be 1.5% of general assembly (TW).In order to make the powder prepared be suitable for spraying, the Cr obtained will be calcined
3+: Al
2o
3powder is prepared into by the method for reuniting the spherical powder that particle diameter is about 30 μm.
Adopt that this example is prepared by the mode of flame spraying and through the Cr of mist projection granulating process
3+: Al
2o
3window outer surface before powder even application to the target body of spallation neutron target, obtains image coating.
This example have employed low-power spraying respectively and high power spraying contrasts.In low-power spraying, in spraying fuel, acetylene and oxygen proportion are 45%, and concrete spraying method is: regulate acetylene and oxygen flow switch in flame spraying instrument, make acetylene and oxygen flow ratio remain on 45%, then start powder feeding, spray.In high power spraying, in spraying dyestuff, acetylene and oxygen proportion are 52%, and all the other spray identical with low-power.
This example adopts X-ray diffraction analysis (XRD), to prepared Cr
3+: Al
2o
3in powder, the phase structure of aluminium oxide is analyzed, and meanwhile, has carried out analysis and calculation to the alumina phase structure in image coating prepared after spraying and content.Result as shown in Figure 1, this example preparation Cr
3+the Al of doping
2o
3in powder, be all alpha-phase aluminum oxide substantially, and after spraying, have part alpha-phase aluminum oxide to change in order to γ phase alumina, result of calculation shows, and has the Al of at least 16.2% in high power spraying
2o
3powder γ phase alumina, and the Al only having 13.8% in low-power spraying
2o
3powder γ phase alumina.
Further, adopt the luminescence efficiency of fluorescence spectrophotometer testing image coating, as shown in Figure 2, the image coating of low-power spraying preparation, its luminous intensity is far above the image coating of high power spraying preparation for result.
To sum up detect analysis, adopt Cr prepared by this example
3+: Al
2o
3powder, the image coating prepared in the mode of low-power flame spraying, wherein the content of alpha-phase aluminum oxide is 86.2%, its luminescence efficiency, far above the image coating prepared by high power spraying, can meet spallation neutron target and accurately judge the position of high energy proton line bombardment target body and the user demand of line distribution.
On the basis of above test, this example is further to Cr
3+doping, and the ratio spraying fuel in low-power spraying is studied.Result shows, control Cr (NO
3)
39H
2the usage ratio of O, makes the Cr of final preparation
3+: Al
2o
3cr in powder
3+doping be the 1%-5% of general assembly (TW), prepared image coating can meet user demand.As for the ratio spraying fuel in low-power spraying, be substantially all the Cr of alpha-phase aluminum oxide in employing
3+: Al
2o
3when powder sprays, control spraying fuel acetylene and oxygen proportion are between 40%-60%, the conversion of alpha-phase aluminum oxide can be reduced, make the content of alpha-phase aluminum oxide in final image coating reach more than 86%, spraying fuel acetylene and oxygen proportion are that between 45%-50%, effect is better.
Comparative example
This example adopts the identical method of embodiment to prepare Cr
3+: Al
2o
3powder, and adopt identical low-power flame spraying mode to prepare image coating.Meanwhile, this example also have employed plasma spray coating respectively and detonation flame spraying two kinds of modes contrast, and the impact of spraying method on image coating luminescence efficiency is described.
Wherein, during plasma spraying, a direct-current arc is produced between negative electrode and anode (nozzle), this electric arc is ionized into high-temperature plasma the working gas heating imported, and form flame passes from nozzle spraying, the temperature of flame passes is very high, and central temperature can reach 30000k, and the outlet temperature of nozzle can reach 15000k.Flame Flow Velocity can reach 1500m/s at nozzle exit, but decays rapidly, and powder is sent in flame by powder feeding gas and is melted, and is accelerated by flame stream, is ejected on matrix material and forms coating.
Detonation flame spraying is in firing chamber, ignites, make after oxygen and acetylene 2:5 mixing by volume powder heating and melting and make particle high-speed impact form coating to substrate material surface.
This example adopts fluorescence spectrophotometer to carry out luminescence efficiency test to the image coating that three kinds of spraying methods obtain equally, and result is as shown in Figure 3, visible, and the luminous intensity of image coating prepared by flame spraying is the highest.Carry out XRD analysis in conjunction with the image coating obtained three kinds of spraying methods, result shows, and in image coating prepared by flame spraying, the content of alpha-phase aluminum oxide reaches Al
2o
3about 87% of powder, and in image coating prepared by plasma spray coating and detonation flame spraying two kinds the content of alpha-phase aluminum oxide all below 84%.
Above content is the further description done the application in conjunction with concrete embodiment, can not assert that the concrete enforcement of the application is confined to these explanations.For the application person of an ordinary skill in the technical field, under the prerequisite not departing from the application's design, some simple deduction or replace can also be made, all should be considered as the protection domain belonging to the application.
Claims (10)
1., for a particle beams image coating for spallation neutron target, described image coating is coated on by window outer surface before the target body that bombards, it is characterized in that: the main active ingredient of described image coating is Cr
3+the Al of doping
2o
3powder.
2. image coating according to claim 1, is characterized in that: Cr in described image coating
3+doping be the 1%-5% of general assembly (TW).
3. image coating according to claim 1, is characterized in that: described Al
2o
3in powder, more than 86% is α phase powder.
4. the preparation method of the image coating according to any one of claim 1-3, is characterized in that: comprise preparation Cr
3+the Al of doping
2o
3powder, then, adopts the mode of flame spraying by Cr
3+the Al of doping
2o
3powder spray is coated onto window outer surface before target body, and described flame spraying is low-power spraying.
5. preparation method according to claim 4, is characterized in that: in described flame spraying, and the spraying acetylene of fuel and the throughput ratio of oxygen are 40%-60%.
6. preparation method according to claim 4, is characterized in that: in described flame spraying, and the spraying acetylene of fuel and the throughput ratio of oxygen are 45%-50%.
7. the preparation method according to any one of claim 4-6, is characterized in that: described Cr
3+the Al of doping
2o
3powder adopts chemical synthesis preparation, described Al
2o
3powder is α phase powder.
8. preparation method according to claim 7, is characterized in that: the raw material of described chemical synthesis is Al salt and Cr salt.
9. preparation method according to claim 7, is characterized in that: described Cr
3+the Al of doping
2o
3in powder, Cr
3+doping be the 1%-5% of general assembly (TW).
10. the application of Al2O3 powder in the image coating of spallation neutron target target body of a Cr3+ doping, the amount of described Cr3+ doping is the 1%-5% of powder general assembly (TW), described application comprises, the Al2O3 powder adulterated with described Cr3+ is starting material, the Al2O3 powder spray adulterated by Cr3+ by lower powered flame spraying is coated onto by window outer surface before the target body that bombards, forms the image coating being applicable to high energy proton bundle and ion beam.
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|---|---|---|---|
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103617A (en) * | 2019-12-25 | 2020-05-05 | 中国工程物理研究院核物理与化学研究所 | Imaging plate for thermal neutron photography and preparation method thereof |
| CN115044372A (en) * | 2022-06-27 | 2022-09-13 | 散裂中子源科学中心 | Luminescent material for particle beam excitation and preparation method thereof |
-
2015
- 2015-04-17 CN CN201510185400.9A patent/CN104793233B/en active Active
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111103617A (en) * | 2019-12-25 | 2020-05-05 | 中国工程物理研究院核物理与化学研究所 | Imaging plate for thermal neutron photography and preparation method thereof |
| CN111103617B (en) * | 2019-12-25 | 2022-06-07 | 中国工程物理研究院核物理与化学研究所 | Imaging plate for thermal neutron photography and preparation method thereof |
| CN115044372A (en) * | 2022-06-27 | 2022-09-13 | 散裂中子源科学中心 | Luminescent material for particle beam excitation and preparation method thereof |
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