CN103091698B - The detection method of one kind of proton/electronics synthesis irradiation beams streamer amount - Google Patents
The detection method of one kind of proton/electronics synthesis irradiation beams streamer amount Download PDFInfo
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Abstract
The detection method of one kind of proton/electronics synthesis irradiation beams streamer amount, it relates to the detection method of one kind of proton/electronics synthesis irradiation beams streamer amount, the present invention is the fluence that once can only detect a kind of incident particle line for solving existing irradiation test detection method, when proton/electronics synthesis irradiation, line integraph cannot show the technical matters of corresponding fluence, synthetic method is as follows: a determines combined irradlation source energy, b determines test material, c calculates the range of combined irradlation source in test material, d is according to the thickness of range determination test material, then e is detected by line integraph and obtains proton/electronics synthesis irradiation beams streamer amount, solve existing combined irradlation detection method, when two kinds of incident particles that flux is approximate while during irradiation, the problem that line integraph cannot show, the fluence of different irradiating beam stream can be detected simultaneously, detection method is simple to operate, accuracy is high, can be applicable in floor synthetic irradiation test.
Description
Technical field
The present invention relates to the detection method of one kind of proton/electronics synthesis irradiation beams streamer amount.
Background technology
At present, when carrying out ground irradiation test both at home and abroad, the line of incident particle (proton, electronics, heavy ion etc.), in situ detection is carried out mainly through line integraph, but these irradiation tests mainly detect for a kind of incident particle of particular energy, such as, 10MeV proton, 1MeV electronics, 170keV proton, 100keV electronics, 50MeV Br ion etc.Incident particle in situ detection for a kind of particular energy is relatively simple, and namely select suitable test material (as Al material), additional line integraph just can complete above-mentioned work.
When two kinds of incident particles while during irradiation, especially the flux of incident particle is similar to again, and above-mentioned this simple detection method just can not detect the irradiation fluence of two kinds of incident particles.Such as, incident particle is 100keV proton and 100keV electronics synthesis irradiation, and the flux of incident particle is all about 1 × 10
11individual/cm
2s.Now, if detect with said method, then the display numerical value of line integraph will fluctuate about 0.Because line integraph can only unidirectional display negative or positive electrode, therefore now can not obtain incident proton and the corresponding fluence of electronics, bring very large error will to like this ground irradiation test.
Summary of the invention
The present invention will solve the fluence that existing irradiation test detection method once can only detect a kind of incident particle line, when proton/electronics synthesis irradiation, line integraph cannot show the technical matters of corresponding fluence, and provides the detection method of one kind of proton/electronics synthesis irradiation beams streamer amount.
The detection method of one kind of proton of the present invention/electronics synthesis irradiation beams streamer amount is carried out according to the following steps:
One, the energy in proton irradiation source and electron irradiation source is determined;
Two, according to the proton irradiation source of step one and the energy determination test material in electron irradiation source, determine that principle is make the thickness of the test material of proton irradiation source total loss be not less than 3 μm;
Three, Monte Carlo method or Geant4 program is utilized, proton irradiation source and the electron irradiation source range δ in step 2 in selected test material in calculation procedure one
1and δ
2;
Four, according to range δ
1and δ
2, the thickness A of selected test material in determining step two
1and A
2, determine that principle is A for making proton irradiation source total loss at thickness
1test material in, make electron irradiation source be all A by thickness
1test material, total loss is A at thickness
2test material in;
Five, be A by thickness in step 4
1and A
2test material be connected with corresponding line integraph respectively, test material overlap is placed, and makes proton irradiation source and electron irradiation source be first A by thickness simultaneously
1test material, then be A by thickness
2test material, have gap between test material, obtain the line fluence in proton irradiation source and electron irradiation source.
The detection method of one kind of proton of the present invention/electronics synthesis irradiation beams streamer amount, the range in selected test material according to proton irradiation source and electron irradiation source, determine the respective thickness of the test material detecting proton irradiation source and electron irradiation source, respectively the test material of different-thickness is connected with corresponding line integraph again, make proton irradiation source and electron irradiation source simultaneously incident, first by thinner test material, again by thicker test material, obtain the line fluence in proton irradiation source and electron irradiation source, solve in existing combined irradlation testing process, when two kinds of incident particles that flux is approximate while during irradiation, the problem that line integraph cannot show, the fluence of different irradiating beam stream can be detected simultaneously, detection method is simple to operate, accuracy is high, can be applicable in floor synthetic irradiation test.
Accompanying drawing explanation
Fig. 1 is detection method process flow diagram of the present invention;
Fig. 2 is the schematic diagram of the detection method of the one kind of proton/electronics synthesis irradiation beams streamer amount of embodiment 1 and embodiment 2; The wherein Al of a to be the Al of 3 μm, b be 5mm, the direction of arrow is proton/electronics synthesis irradiation bomb incident direction;
Fig. 3 is energy loss in Al is thin of 100keV proton and 100keV electronics and range curve map in embodiment 1, and wherein curve c is proton, and curve d is electronics;
Fig. 4 is energy loss in Al is thin of 170keV proton and 70keV electronics and range curve map in embodiment 2, and wherein curve e is proton, and curve f is electronics.
Embodiment
Technical solution of the present invention is not limited to following cited embodiment, also comprises the combination in any between each embodiment.
Embodiment one: the detection method of the one kind of proton/electronics synthesis irradiation beams streamer amount of present embodiment is carried out according to the following steps:
One, the energy in proton irradiation source and electron irradiation source is determined;
Two, according to the proton irradiation source of step one and the energy determination test material in electron irradiation source, determine that principle is make the thickness of the test material of proton irradiation source total loss be not less than 3 μm;
Three, Monte Carlo method or Geant4 program is utilized, proton irradiation source and the electron irradiation source range δ in step 2 in selected test material in calculation procedure one
1and δ
2;
Four, according to range δ
1and δ
2, the thickness A of selected test material in determining step two
1and A
2, determine that principle is A for making proton irradiation source total loss at thickness
1test material in, make electron irradiation source be all A by thickness
1test material, total loss is A at thickness
2test material in;
Five, be A by thickness in step 4
1and A
2test material be connected with corresponding line integraph respectively, test material overlap is placed, and makes proton irradiation source and electron irradiation source be first A by thickness simultaneously
1test material, then be A by thickness
2test material, have gap between test material, obtain the line fluence in proton irradiation source and electron irradiation source.
The detection method of the one kind of proton/electronics synthesis irradiation beams streamer amount of present embodiment, the range in selected test material according to proton irradiation source and electron irradiation source, determine the respective thickness of the test material detecting proton irradiation source and electron irradiation source, respectively the test material of different-thickness is connected with corresponding line integraph again, make proton irradiation source and electron irradiation source simultaneously incident, first by thinner test material, again by thicker test material, obtain the line fluence in proton irradiation source and electron irradiation source, solve in existing combined irradlation testing process, when two kinds of incident particles that flux is approximate while during irradiation, the problem that line integraph cannot show, the fluence of different irradiating beam stream can be detected simultaneously, detection method is simple to operate, accuracy is high, can be applicable in floor synthetic irradiation test.
Embodiment two: present embodiment and embodiment one unlike: determine in step 2 that principle is make the thickness of the test material of proton irradiation source total loss be not less than 1mm, other step is identical with embodiment one with parameter.
Embodiment three: present embodiment and embodiment one or two unlike: the test material in step 2 is Al, and other step is identical with embodiment one or two with parameter.
Embodiment four: one of present embodiment and embodiment one to three unlike: the test material in step 2 is that the Al bottom Faraday cup is thin, and other step is identical with one of embodiment one to three with parameter.
Embodiment five: one of present embodiment and embodiment one to four unlike: when placing test material in step 5, the gap between test material is 1 ~ 30mm, and other step is identical with one of embodiment one to four with parameter.
With following verification experimental verification beneficial effect of the present invention:
The detection method of embodiment 1, (composition graphs 1, Fig. 2 and Fig. 3) one kind of proton/electronics synthesis irradiation beams streamer amount is carried out according to the following steps:
One, select energy to be 100keV, fluence is 1 × 10
11individual/cm
2the proton irradiation source of s and electron irradiation source;
Two, thin as test material according to the Al bottom the proton irradiation source of step one selection and the energy in electron irradiation source and flux selection Faraday cup;
Three, utilize Monte Carlo method, in calculation procedure one proton irradiation source and electron irradiation source Al in step 2 thin in range δ
1and δ
2, as shown in Figure 3, as seen from the figure, the proton of 100keV is at the thin medium range δ of Al for result of calculation
1be 1 μm, and the range δ of the electronics of 100keV in Al
2more than 100 μm;
Four, according to the range result calculated in step 3, the thickness A of the Al in the proton irradiation source of detecting step one is determined
1be 3 μm, the thickness A of the Al in the electron irradiation source of detecting step one
2for 5mm;
Five, by thickness in step 4 be 3 μm to be connected with two line integraphs of Shanghai applied physics research institute 89 type respectively with the Al of 5mm, Al overlap is placed, interval 5mm, make the proton irradiation source of step one and electron irradiation source simultaneously first by test material that thickness is 3 μm, be the test material of 5mm by thickness again, the irradiation fluence obtaining proton irradiation source is 0.95 × 10
11individual/cm
2s, the irradiation fluence in electron irradiation source is 0.92 × 10
11individual/cm
2s.
The detection method of the one kind of proton/electronics synthesis irradiation beams streamer amount of the present embodiment, the range in selected test material according to proton irradiation source and electron irradiation source, determine the respective thickness of the test material detecting proton irradiation source and electron irradiation source, respectively the test material of different-thickness is connected with corresponding line integraph again, make proton irradiation source and electron irradiation source simultaneously incident, the proton total loss of 100keV, in the Al material of 3 μm, cuts little ice to 5mm Al below; And the electronics of 100keV only has only a few energy loss in the Al material of 3 μm, Main Function is in the Al of 5mm below, testing result is close with testing result when carrying out separately proton or electron irradiation, solve in existing combined irradlation testing process, when two kinds of incident particles that flux is approximate while during irradiation, the problem that line integraph cannot show, the fluence of different irradiating beam stream can be detected simultaneously, detection method is simple to operate, accuracy is high, measuring accuracy meets error requirements, can be applicable in floor synthetic irradiation test.
The detection method of embodiment 2, (composition graphs 1, Fig. 2 and Fig. 4) one kind of proton/electronics synthesis irradiation beams streamer amount is carried out according to the following steps:
One, select energy to be 170keV, fluence is 1.2 × 10
11individual/cm
2the proton irradiation source of s and energy are 70keV, and fluence is 1.2 × 10
11individual/cm
2s electron irradiation source;
Two, thin as test material according to the Al bottom the proton irradiation source of step one selection and the energy in electron irradiation source and flux selection Faraday cup;
Three, utilize Monte Carlo method, in calculation procedure one proton irradiation source and electron irradiation source Al in step 2 thin in range δ
1and δ
2, as shown in Figure 4, as seen from the figure, the proton of 170keV is at the thin medium range δ of Al for result of calculation
1be 2 μm, and the range δ of the electronics of 70keV in Al
2it is 80 μm;
Four, according to the range result calculated in step 3, the thickness A of the Al in the proton irradiation source of detecting step one is determined
1be 3 μm, the thickness A of the Al in the electron irradiation source of detecting step one
2for 5mm;
Five, by thickness in step 4 be 3 μm to be connected with two line integraphs of Shanghai applied physics research institute 89 type respectively with the Al of 5mm, Al overlap is placed, interval 6mm, make the proton irradiation source of step one and electron irradiation source simultaneously first by test material that thickness is 3 μm, be the test material of 5mm by thickness again, the irradiation fluence obtaining proton irradiation source is 1.19 × 10
11individual/cm
2s, the irradiation fluence in electron irradiation source is 1.18 × 10
11individual/cm
2s.
The detection method of the one kind of proton/electronics synthesis irradiation beams streamer amount of the present embodiment, the range in selected test material according to proton irradiation source and electron irradiation source, determine the respective thickness of the test material detecting proton irradiation source and electron irradiation source, respectively the test material of different-thickness is connected with corresponding line integraph again, make proton irradiation source and electron irradiation source simultaneously incident, the proton total loss of 170keV, in the Al material of 3 μm, cuts little ice to 5mm Al below; And the electronics of 70keV only has only a few energy loss in the Al material of 3 μm, Main Function is in the Al of 5mm below, testing result is close with testing result when carrying out separately proton or electron irradiation, solve in existing combined irradlation testing process, when two kinds of incident particles that flux is approximate while during irradiation, the problem that line integraph cannot show, the fluence of different irradiating beam stream can be detected simultaneously, detection method is simple to operate, accuracy is high, measuring accuracy meets error requirements, can be applicable in floor synthetic irradiation test.
Claims (1)
1. the detection method of one kind of proton/electronics synthesis irradiation beams streamer amount, is characterized in that this detection method is carried out as follows:
One, select energy to be 100keV, fluence is 1 × 10
11individual/cm
2the proton irradiation source of s and electron irradiation source;
Two, thin as test material according to the Al bottom the proton irradiation source of step one selection and the energy in electron irradiation source and flux selection Faraday cup;
Three, utilize Monte Carlo method, in calculation procedure one proton irradiation source and electron irradiation source Al in step 2 thin in range δ
1and δ
2, the proton of 100keV is at the thin medium range δ of Al
1be 1 μm, and the range δ of the electronics of 100keV in Al
2more than 100 μm;
Four, according to the range result calculated in step 3, the thickness A of the Al in the proton irradiation source of detecting step one is determined
1be 3 μm, the thickness A of the Al in the electron irradiation source of detecting step one
2for 5mm;
Five, by thickness in step 4 be 3 μm to be connected with two line integraphs respectively with the Al of 5mm, Al overlap is placed, interval 5mm, make the proton irradiation source of step one and electron irradiation source simultaneously first by test material that thickness is 3 μm, be the test material of 5mm by thickness again, the irradiation fluence obtaining proton irradiation source is 0.95 × 10
11individual/cm
2s, the irradiation fluence in electron irradiation source is 0.92 × 10
11individual/cm
2s.
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| CN106404651B (en) * | 2016-10-19 | 2019-03-29 | 哈尔滨工业大学 | The space radiation effect equivalence evaluation method of aliphatic polymer insulating materials |
| CN106644907A (en) * | 2016-10-19 | 2017-05-10 | 哈尔滨工业大学 | Ground-based simulation test method for comprehensive space environment effect of exposure materials for low-earth orbit spacecrafts |
| CN106646578A (en) * | 2016-12-22 | 2017-05-10 | 中国空气动力研究与发展中心超高速空气动力研究所 | High-energy proton beam density distribution testing device |
| CN108335979B (en) * | 2018-02-09 | 2020-06-30 | 哈尔滨工业大学 | Irradiation particle energy selection method for simultaneously generating ionization and displacement defects |
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