CN103091698A - Test method of proton/electronic synthetical irradiation beam fluence - Google Patents
Test method of proton/electronic synthetical irradiation beam fluence Download PDFInfo
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- CN103091698A CN103091698A CN2013100249240A CN201310024924A CN103091698A CN 103091698 A CN103091698 A CN 103091698A CN 2013100249240 A CN2013100249240 A CN 2013100249240A CN 201310024924 A CN201310024924 A CN 201310024924A CN 103091698 A CN103091698 A CN 103091698A
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Abstract
The invention relates to a test method of proton/electronic synthetical irradiation beam fluence and aims to solve the technical problems that only radiation flux of one kind of incident particle beam current can be tested, and when proton/electronic is synthetically irradiated, a beam-current integrator can not display corresponding radiation flux in the prior art. A synthesis method comprises the following steps: a, confirming comprehensive irradiation source energy, b, confirming test materials, c, calculating radiation distance of a comprehensive irradiation source in the test materials, d, confirming the thickness of the test materials according to the radiation distance, and e, obtaining proton/electronic synthetical irradiation beam fluence according to test of a beam-current integrator. The problem that when two incident particles which have approximate flux radiate at the same time, the beam-current integrator can not display in the prior art is solved. The test method of the proton/electronic synthetical irradiation beam fluence can test the fluence of different radiation particle beam currents, is convenient to operate, is high in accuracy, and can be used in ground synthetical irradiation experiment.
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 the ground irradiation test both at home and abroad, the line of incident particle (proton, electronics, heavy ion etc.), mainly carry out in situ detection by the line integraph, but these irradiation tests are mainly the incident particles for a kind of particular energy to be detected, for example, 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, namely selects suitable test material (as the Al material), adds the line integraph and just can complete above-mentioned work.
Simultaneously during irradiation, especially the flux of incident particle is approximate again when two kinds of incident particles, and above-mentioned this simple detection method just can not detect the irradiation fluence of two kinds of incident particles.For example, incident particle is 100keV proton and 100keV electronics synthesis irradiation, and the flux of incident particle all is about 1 * 10
11Individual/cm
2s。At this moment, if detect with said method, the demonstration numerical value of line integraph will be in 0 fluctuation up and down.Because the line integraph can only unidirectional demonstration negative or positive electrode, therefore can not obtain incident proton and the corresponding irradiation flux of electronics this moment, bring very large error will for like this ground irradiation test.
Summary of the invention
The present invention will solve the irradiation flux that existing irradiation test detection method once can only detect a kind of incident particle line, when proton/electronics synthesis irradiation, the line integraph can't show the technical matters of corresponding irradiation flux, and the detection method of one kind of proton/electronics synthesis irradiation beams streamer amount is provided.
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, determine the energy in proton irradiation source and electron irradiation source;
Two, determine test material according to the energy in the proton irradiation source of step 1 and electron irradiation source, determine that principle is to make the thickness of the test material of proton irradiation source total loss be not less than 3 μ m;
Three, utilize Monte Carlo method or Geant4 program, proton irradiation source and electron irradiation source range δ in selected test material in step 2 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, making the electron irradiation source is all A by thickness
1Test material, total loss is A at thickness
2Test material in;
Five, be A with thickness in step 4
1And A
2Test material be connected with corresponding line integraph respectively, the overlapping placement of test material, making proton irradiation source and electron irradiation source is first A by thickness simultaneously
1Test material, then be A by thickness
2Test material, gapped 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 to detect the respective thickness of the test material in 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 the incident simultaneously of electron irradiation source, first by thinner test material, again by thicker test material, obtain the line fluence in proton irradiation source and electron irradiation source, solved in existing comprehensive irradiation testing process, when the approximate two kinds of incident particles of flux simultaneously during irradiation, the problem that the line integraph can't show, can detect simultaneously the fluence of different irradiation particle beams, detection method is simple to operate, accuracy is high, can be applicable in the floor synthetic irradiation test.
Description of drawings
Fig. 1 is detection method process flow diagram of the present invention;
Fig. 2 is the schematic diagram of detection method of one kind of proton/electronics synthesis irradiation beams streamer amount of embodiment 1 and embodiment 2; Wherein a is the Al of 3 μ m, and b is the Al of 5mm, and the direction of arrow is proton/electronics synthesis irradiation bomb incident direction;
Fig. 3 is 100keV proton and energy loss and the range curve map of 100keV electronics in Al is thin in embodiment 1, and wherein curve c is proton, and curve d is electronics;
Fig. 4 is 170keV proton and energy loss and the range curve map of 70keV electronics in Al is thin 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 one kind of proton of present embodiment/electronics synthesis irradiation beams streamer amount is carried out according to the following steps:
One, determine the energy in proton irradiation source and electron irradiation source;
Two, determine test material according to the energy in the proton irradiation source of step 1 and electron irradiation source, determine that principle is to make the thickness of the test material of proton irradiation source total loss be not less than 3 μ m;
Three, utilize Monte Carlo method or Geant4 program, proton irradiation source and electron irradiation source range δ in selected test material in step 2 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, making the electron irradiation source is all A by thickness
1Test material, total loss is A at thickness
2Test material in;
Five, be A with thickness in step 4
1And A
2Test material be connected with corresponding line integraph respectively, the overlapping placement of test material, making proton irradiation source and electron irradiation source is first A by thickness simultaneously
1Test material, then be A by thickness
2Test material, gapped between test material, obtain the line fluence in proton irradiation source and electron irradiation source.
the detection method of one kind of proton of present embodiment/electronics synthesis irradiation beams streamer amount, the range in selected test material according to proton irradiation source and electron irradiation source, determine to detect the respective thickness of the test material in 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 the incident simultaneously of electron irradiation source, first by thinner test material, again by thicker test material, obtain the line fluence in proton irradiation source and electron irradiation source, solved in existing comprehensive irradiation testing process, when the approximate two kinds of incident particles of flux simultaneously during irradiation, the problem that the line integraph can't show, can detect simultaneously the fluence of different irradiation particle beams, detection method is simple to operate, accuracy is high, can be applicable in the floor synthetic irradiation test.
Embodiment two: what present embodiment was different from embodiment one is: determine in step 2 that principle is to make the thickness of the test material of proton irradiation source total loss be not less than 1mm, other step and parameter are identical with embodiment one.
Embodiment three: what present embodiment was different from embodiment one or two is: the test material in step 2 is Al, and other step and parameter are identical with embodiment one or two.
Embodiment four: what present embodiment was different from one of embodiment one to three is: the test material in step 2 is that the Al bottom Faraday cup is thin, and other step and parameter are identical with one of embodiment one to three.
Embodiment five: what present embodiment was different from one of embodiment one to four is: when placing test material in step 5, the gap between test material is 1～30mm, and other step and parameter are identical with one of embodiment one to four.
With following verification experimental verification beneficial effect of the present invention:
The detection method of embodiment 1, (in conjunction with Fig. 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, the irradiation flux is 1 * 10
11Individual/cm
2The proton irradiation source of s and electron irradiation source;
The energy in the proton irradiation source of two, selecting according to step 1 and electron irradiation source and flux select the Al of Faraday cup bottom thin as test material;
Three, utilize Monte Carlo method, proton irradiation source and electron irradiation source Al in the step 2 range δ in thin in calculation procedure one
1And δ
2, result of calculation as shown in Figure 3, as seen from the figure, the proton of 100keV is at the thin medium range δ of Al
1Be 1 μ m, and the range δ of the electronics of 100keV in Al
2Surpass 100 μ m;
Four, according to the range result that calculates in step 3, determine the thickness A of Al in the proton irradiation source of detecting step one
1Be 3 μ m, the thickness A of the Al in the electron irradiation source of detecting step one
2Be 5mm;
Five, be that the Al of 3 μ m and 5mm is connected with two line integraphs of Shanghai applied physics research institute 89 types respectively with thickness in step 4, the overlapping placement of Al, interval 5mm, making proton irradiation source and the electron irradiation source while of step 1 is first the test material of 3 μ m by thickness, be the test material of 5mm by thickness again, the irradiation fluence that obtains the 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 one kind of proton of the present embodiment/electronics synthesis irradiation beams streamer amount, the range in selected test material according to proton irradiation source and electron irradiation source, determine to detect the respective thickness of the test material in 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 the incident simultaneously of electron irradiation source, the proton total loss of 100keV cuts little ice to the 5mm Al of back in the Al material of 3 μ m; And the electronics of 100keV only has the only a few energy loss in the Al material of 3 μ m, Main Function is in the Al of the 5mm of back, the testing result of testing result when carrying out proton or electron irradiation separately is close, solved in existing comprehensive irradiation testing process, when the approximate two kinds of incident particles of flux simultaneously during irradiation, the problem that the line integraph can't show, can detect simultaneously the fluence of different irradiation particle beams, detection method is simple to operate, accuracy is high, measuring accuracy satisfies error requirements, can be applicable in the floor synthetic irradiation test.
The detection method of embodiment 2, (in conjunction with Fig. 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, selecting energy is 170keV, and the irradiation flux is 1.2 * 10
11Individual/cm
2The proton irradiation source of s and energy are 70keV, and the irradiation flux is 1.2 * 10
11Individual/cm
2S electron irradiation source;
The energy in the proton irradiation source of two, selecting according to step 1 and electron irradiation source and flux select the Al of Faraday cup bottom thin as test material;
Three, utilize Monte Carlo method, proton irradiation source and electron irradiation source Al in the step 2 range δ in thin in calculation procedure one
1And δ
2, result of calculation as shown in Figure 4, as seen from the figure, the proton of 170keV is at the thin medium range δ of Al
1Be 2 μ m, and the range δ of the electronics of 70keV in Al
2Be 80 μ m;
Four, according to the range result that calculates in step 3, determine the thickness A of Al in the proton irradiation source of detecting step one
1Be 3 μ m, the thickness A of the Al in the electron irradiation source of detecting step one
2Be 5mm;
Five, be that the Al of 3 μ m and 5mm is connected with two line integraphs of Shanghai applied physics research institute 89 types respectively with thickness in step 4, the overlapping placement of Al, interval 6mm, making proton irradiation source and the electron irradiation source while of step 1 is first the test material of 3 μ m by thickness, be the test material of 5mm by thickness again, the irradiation fluence that obtains the 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 one kind of proton of the present embodiment/electronics synthesis irradiation beams streamer amount, the range in selected test material according to proton irradiation source and electron irradiation source, determine to detect the respective thickness of the test material in 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 the incident simultaneously of electron irradiation source, the proton total loss of 170keV cuts little ice to the 5mm Al of back in the Al material of 3 μ m; And the electronics of 70keV only has the only a few energy loss in the Al material of 3 μ m, Main Function is in the Al of the 5mm of back, the testing result of testing result when carrying out proton or electron irradiation separately is close, solved in existing comprehensive irradiation testing process, when the approximate two kinds of incident particles of flux simultaneously during irradiation, the problem that the line integraph can't show, can detect simultaneously the fluence of different irradiation particle beams, detection method is simple to operate, accuracy is high, measuring accuracy satisfies error requirements, can be applicable in the floor synthetic irradiation test.
Claims (5)
1. the detection method of one kind of proton/electronics synthesis irradiation beams streamer amount is characterized in that this detection method carries out as follows:
One, determine the energy in proton irradiation source and electron irradiation source;
Two, determine test material according to the energy in the proton irradiation source of step 1 and electron irradiation source, determine that principle is to make the thickness of the test material of proton irradiation source total loss be not less than 3 μ m;
Three, utilize Monte Carlo method or Geant4 program, proton irradiation source and electron irradiation source the range δ 1 in selected test material and δ 2 in step 2 in calculation procedure one;
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, making the electron irradiation source is all A by thickness
1Test material, total loss is A at thickness
2Test material in;
Five, be A with thickness in step 4
1And A
2Test material be connected with corresponding line integraph respectively, the overlapping placement of test material, making proton irradiation source and electron irradiation source is first A by thickness simultaneously
1Test material, then be A by thickness
2Test material, gapped between test material, obtain the line fluence in proton irradiation source and electron irradiation source.
2. the detection method of one kind of proton according to claim 1/electronics synthesis irradiation beams streamer amount is characterized in that determining in step 2 that principle is to make the thickness of the test material of proton irradiation source total loss be not less than 1mm.
3. the detection method of one kind of proton according to claim 1 and 2/electronics synthesis irradiation beams streamer amount, is characterized in that the test material in step 2 is Al.
4. the detection method of one kind of proton according to claim 3/electronics synthesis irradiation beams streamer amount is characterized in that test material in step 2 is that the Al of Faraday cup bottom different-thickness is thin.
5. the detection method of one kind of proton according to claim 3/electronics synthesis irradiation beams streamer amount, when it is characterized in that placing test material in step 5, the gap between test material is 1～30mm.
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Cited By (4)
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| CN106404651A (en) * | 2016-10-19 | 2017-02-15 | 哈尔滨工业大学 | Space radiation effect bioequivalence evaluation method of aliphatic polymer insulation materials for space navigation |
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| 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 |
| CN108335979A (en) * | 2018-02-09 | 2018-07-27 | 哈尔滨工业大学 | The irradiation particle energy selection method of ionization and displacement defect is generated simultaneously |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106404651A (en) * | 2016-10-19 | 2017-02-15 | 哈尔滨工业大学 | Space radiation effect bioequivalence evaluation method of aliphatic polymer insulation materials for space navigation |
| 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 |
| 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 |
| 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 |
| CN108335979A (en) * | 2018-02-09 | 2018-07-27 | 哈尔滨工业大学 | The irradiation particle energy selection method of ionization and displacement defect is generated simultaneously |
| 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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