CN104979033A - All-optical Compton gamma-ray and ultrashort pulse positron beam generation method - Google Patents
All-optical Compton gamma-ray and ultrashort pulse positron beam generation method Download PDFInfo
- Publication number
- CN104979033A CN104979033A CN201510242725.6A CN201510242725A CN104979033A CN 104979033 A CN104979033 A CN 104979033A CN 201510242725 A CN201510242725 A CN 201510242725A CN 104979033 A CN104979033 A CN 104979033A
- Authority
- CN
- China
- Prior art keywords
- positron
- ultrashort
- pulse
- electron
- compton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K5/00—Irradiation devices
- G21K5/04—Irradiation devices with beam-forming means
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G4/00—Radioactive sources
- G21G4/04—Radioactive sources other than neutron sources
- G21G4/06—Radioactive sources other than neutron sources characterised by constructional features
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21G—CONVERSION OF CHEMICAL ELEMENTS; RADIOACTIVE SOURCES
- G21G4/00—Radioactive sources
- G21G4/04—Radioactive sources other than neutron sources
- G21G4/06—Radioactive sources other than neutron sources characterised by constructional features
- G21G4/08—Radioactive sources other than neutron sources characterised by constructional features specially adapted for medical application
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Lasers (AREA)
Abstract
The invention provides an all-optical Compton gamma-ray and ultrashort pulse positron beam generation method. According to the invention, gas molecules in a capillary gas channel are ionized with a beam of ultrashort ultra-intense laser pulse, such that electrons are generated and synchronically accelerated, such that a high-current ultrashort-pulse electron beam is obtained. The electron beam is subjected to Compton scattering with another beam of ultrashort ultra-intense laser pulse, such that an all-optical femtosecond pulse Compton gamma-ray source is produced. With the interaction with a positron conversion target (high-Z target), and through an electron-positron pair physical mechanism, a large amount of electron-positron pairs are produced. Through separation, a sub-hundred femtosecond-level mega electron volt positron beam is generated. According to the invention, ultrashort pulse Compton gamma-ray and positron beam can be generated at a same time. Compared to a traditional positron source, the Compton gamma-ray and positron beam have the beam current characteristics of ultrashort pulse structure, high energy and wide adjustable range. The method can be applied in the research fields of pump-probe positron annihilation spectroscopy and the like.
Description
Technical field
The present invention relates to applied nuclear technologies field, be specifically related to the production method of a kind of full optics Compton gamma light and ultrashort pulse positron beam.
Background technology
Compton gamma light beam utilizes relativistic electron beam and high power laser light generation Compton scattering and the novel gamma rays bundle produced.Because it has the excellent properties such as high flux, short pulse, accurate monochrome, good directionality, energy continuously adjustabe, high polarization, once be chosen as the Novel radiation source of most potentiality in ultrashort pulse field by " science " magazine, had wide practical use in fields such as medical science and biology imaging, treatment of cancer, ultrafast research, time-dependent spectra, industrial flaw detection, special nucleus material (material) detection, nuclear structure, light nuclear physics.But current Compton gamma light source produces primarily of radio frequency electric Accelerator driven, and need utilize a large amount of High-Power Microwaves and magnet system, its cost is relatively costly, floor area is comparatively large, is unfavorable for popularizing on a large scale.
Positron is the antiparticle of electronics, and it is equal with the quality of electronics, and institute is electrically charged also equal with electron charge, just the sub-lotus of positively charged.The same with gamma-ray source, positron can be used for medical imaging and the probe as a kind of scientific research.In scientific research, the positron based on positron annihilation spectroscopy (PAS) technology is the very useful instrument of atomic physics, material science and solid state physics research field.The slow positron beam that PAS uses is usually from natural radiation source, or the continuous or long pulse positron that energetic particle beam target practice produces.
At present, the positron of usual experimental study is mainly derived from radioactive isotope
22the β such as Na
+decay body, needs occupation of land comparatively large and the main facilities such as the electron linear accelerator that cost is relatively costly and nuclear reactor.Based on β
+the positron beam device of decay is simple and ripe, but the continuous positron spectrum energy launched is low, and yield is not high yet; The Relativistic Electron that electron linear accelerator produces and high Z target interact, and can obtain 10
8the positron beam of/s, but their pulse length is longer, is generally tens psecs; Therefore, be difficult to the needs meeting forward position basic and applied research, urgently explore the new method producing positron.
Shorten positron beam pulse and improve the key issue that its stream is by force positron source research, it effectively can increase the precision of positron annihilation spectrometer, and then opens a fan and utilize the PAS of pumping-detection type to come the gate of the ultra-fast dynamics of research material and organism structure.
Summary of the invention
The object of this invention is to provide the production method of a kind of full optics Compton gamma light and ultrashort pulse positron beam, Compton gamma light and the positron beam of ultrashort pulse can be produced simultaneously, compared with traditional positron source, there is the high and beam behaviour that adjustable extent is wide of ultrashort pulse structure, energy, can be applicable to the research fields such as the positron annihilation spectroscopy of pumping-detection type.
To achieve these goals, the technical solution used in the present invention is as follows:
The production method of a kind of full optics Compton gamma light and ultrashort pulse positron beam, utilize a branch of ultrashort, super strong laser pulse by capillary tube gas passage gas molecule ionization, produce and sync plus white electronics to obtain the electron beam of high current, ultrashort pulse (femtosecond or Ah second); Described electron beam and another restraint the Compton gamma light source that ultrashort, super strong laser pulse generation Compton scattering produces a full optics, then interact with positron conversion target (high Z target), produce a large amount of electron-positron pairs by electron-positron pair physical mechanism, after being separated, producing the MeV positron beam of an Asia hundred femtosecond magnitude.
According to above scheme, described ultrashort, super strong laser pulse is produced by high power laser light source, through the reflection of Laser Focusing and reflection unit be divided into two bundles after focusing on.
According to above scheme, described Laser Focusing and reflection unit comprise laser mirror and off axis paraboloidal mirror (focus lamp).
According to above scheme, the recurrence interval of described Compton gamma light is femtosecond or Ah second's level.
According to above scheme, the tripping device of described electron-positron pair is dipolar magnet.
According to above scheme, before described Compton gamma light and positron conversion target interact, also the electron beam of laser acceleration is made to depart from and draw by dipolar magnet, to avoid interference the generation of follow-up ultrashort pulse positron.
The Compton gamma light source that the present invention produces, without using a large amount of High-Power Microwaves and magnet system, is thus called as the Compton gamma light source of full optics.Above-mentioned gamma light and positron conversion target is utilized to interact, by electron-positron pair physical mechanism (i.e. γ+Z → e
++ e
-+ Z) produce the MeV positron beam of sub-hundred femtosecond magnitudes.
The invention has the beneficial effects as follows:
1) compared with classic method, Compton of the present invention gamma light source is without using a large amount of High-Power Microwaves and magnet system, and be all-optical system, equipment cost is less, and floor area is less, is conducive to popularizing use on a large scale;
2) positron beam that the present invention produces is the high energy positron bundle of sub-hundred femtosecond magnitudes, and energy level is several million to tens MeVs, has the high and beam behaviour that adjustable extent is wide of ultrashort pulse structure, energy;
3) positron beam that the present invention produces can be applicable to carry out the research in the field such as ultrafast Structural Dynamics of the positron annihilation spectroscopy of pumping-detection type, material and biosome inside.
4) the present invention can produce Compton gamma light and ultrashort pulse positron beam simultaneously, only can also produce Compton gamma light, application Related Research Domain.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present invention.
In figure: L0, lasing light emitter; L1, L2, ultrashort, super strong laser pulse; C1, Building With Capillary Plasma passage; E1, electron beam; B1, B2, dipolar magnet; M1-M5, Laser Focusing and reflection unit; G1, Compton gamma light; T1, positron conversion target; P1, positron beam.
Embodiment
Below in conjunction with accompanying drawing and embodiment, technical scheme of the present invention is described.
The invention provides the production method of a kind of full optics Compton gamma light and ultrashort pulse positron beam, ultrashort, super strong laser pulse is launched by high power laser light source L0, two bundles are divided into, i.e. ultrashort, super strong laser pulse L1 and ultrashort, super strong laser pulse L2 by Laser Focusing and reflection unit M1; Described ultrashort, super strong laser pulse L1 injects capillary tube gas channel C 1 after laser reflection and focalizer M2-M4, by the gas molecule ionization in described capillary tube gas channel C 1, and a large amount of electronics that sync plus white is ionized are to obtain the electron beam E1 of high current, ultrashort pulse; There is Compton scattering in the described electron beam E1 that described ultrashort, super strong laser pulse L2 and said process produce, and produce femtosecond or Ah second's level Compton gamma light G1, described gamma light G1 makes the electron beam E1 of laser acceleration depart from and draw after dipolar magnet B1 effect, then described Compton gamma light G1 and positron conversion target T1 interacts, and produces a large amount of electron-positron pairs by electron-positron pair physical mechanism; A large amount of positrons, after dipolar magnet B2 effect, is separated by described electron-positron pair from electron beam E1, finally converges into the MeV positron beam P1 of ultrashort pulse.
Above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although above-described embodiment is to invention has been detailed description, the person skilled of this area is to be understood that: can modify to the present invention or replace on an equal basis, but any amendment not departing from spirit and scope of the invention all should be encompassed in right of the present invention with local replacement.
Claims (6)
1. the production method of a full optics Compton gamma light and ultrashort pulse positron beam, it is characterized in that, utilize a branch of ultrashort, super strong laser pulse by capillary tube gas passage gas molecule ionization, produce and sync plus white electronics to obtain the electron beam of high current, ultrashort pulse; Described electron beam and another restraint the Compton gamma light source that ultrashort, super strong laser pulse generation Compton scattering produces a full optics, then interact with positron conversion target, produce a large amount of electron-positron pairs by electron-positron pair physical mechanism, after being separated, producing the MeV positron beam of an Asia hundred femtosecond magnitude.
2. the production method of full optics Compton gamma light according to claim 1 and ultrashort pulse positron beam, it is characterized in that, described ultrashort, super strong laser pulse is produced by high power laser light source, through the reflection of Laser Focusing and reflection unit be divided into two bundles after focusing on.
3. the production method of full optics Compton gamma light according to claim 2 and ultrashort pulse positron beam, it is characterized in that, described Laser Focusing and reflection unit comprise laser mirror and off axis paraboloidal mirror.
4. the production method of full optics Compton gamma light according to claim 1 and ultrashort pulse positron beam, is characterized in that, the recurrence interval of described Compton gamma light is femtosecond or Ah second's level.
5. the production method of full optics Compton gamma light according to claim 1 and ultrashort pulse positron beam, is characterized in that, the tripping device of described electron-positron pair is dipolar magnet.
6. the production method of full optics Compton gamma light according to claim 1 and ultrashort pulse positron beam, it is characterized in that, before described Compton gamma light and positron conversion target interact, also the electron beam of laser acceleration is made to depart from and draw by dipolar magnet, to avoid interference the generation of follow-up ultrashort pulse positron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242725.6A CN104979033A (en) | 2015-05-13 | 2015-05-13 | All-optical Compton gamma-ray and ultrashort pulse positron beam generation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510242725.6A CN104979033A (en) | 2015-05-13 | 2015-05-13 | All-optical Compton gamma-ray and ultrashort pulse positron beam generation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104979033A true CN104979033A (en) | 2015-10-14 |
Family
ID=54275467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510242725.6A Pending CN104979033A (en) | 2015-05-13 | 2015-05-13 | All-optical Compton gamma-ray and ultrashort pulse positron beam generation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104979033A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449071A (en) * | 2018-11-12 | 2019-03-08 | 中国工程物理研究院应用电子学研究所 | A kind of high brightness X-ray soures of pulse power driving |
| CN109718480A (en) * | 2019-03-05 | 2019-05-07 | 北京中百源国际科技创新研究有限公司 | A kind of lasing ion treatment of cancer device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332017B1 (en) * | 1999-01-25 | 2001-12-18 | Vanderbilt University | System and method for producing pulsed monochromatic X-rays |
| US20050213708A1 (en) * | 2004-03-29 | 2005-09-29 | Lawrence Brian L | System and method for X-ray generation |
| US20080002813A1 (en) * | 2004-04-09 | 2008-01-03 | Lyncean Technologies, Inc. | Apparatus system, and method for high flux, compact compton x-ray source |
| US20120002783A1 (en) * | 2009-03-05 | 2012-01-05 | National Institute Of Advanced Industrial Science And Technology | Nondestructive inspection system using nuclear resonance fluorescence |
-
2015
- 2015-05-13 CN CN201510242725.6A patent/CN104979033A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6332017B1 (en) * | 1999-01-25 | 2001-12-18 | Vanderbilt University | System and method for producing pulsed monochromatic X-rays |
| US20050213708A1 (en) * | 2004-03-29 | 2005-09-29 | Lawrence Brian L | System and method for X-ray generation |
| US20080002813A1 (en) * | 2004-04-09 | 2008-01-03 | Lyncean Technologies, Inc. | Apparatus system, and method for high flux, compact compton x-ray source |
| US20120002783A1 (en) * | 2009-03-05 | 2012-01-05 | National Institute Of Advanced Industrial Science And Technology | Nondestructive inspection system using nuclear resonance fluorescence |
Non-Patent Citations (2)
| Title |
|---|
| OMORI T等: "Efficient propagation of polarization from laser photons to positrons through Compton scattering and electron-postitron pair creation", 《PHYSICAL REVIEW LETTER》 * |
| 罗文等: "飞秒康普顿光源驱动的超短、高能正电子束", 《南华大学学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109449071A (en) * | 2018-11-12 | 2019-03-08 | 中国工程物理研究院应用电子学研究所 | A kind of high brightness X-ray soures of pulse power driving |
| CN109718480A (en) * | 2019-03-05 | 2019-05-07 | 北京中百源国际科技创新研究有限公司 | A kind of lasing ion treatment of cancer device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zamfir | Nuclear physics with 10 PW laser beams at extreme light infrastructure–nuclear physics (ELI-NP) | |
| Tajima et al. | Laser acceleration | |
| Levichev | Status and upgrade of the VEPP-4 storage-ring facility | |
| Shaykin et al. | Prospects of PEARL 10 and XCELS laser facilities | |
| Bogacz et al. | SAPPHiRE: A small gamma-gamma Higgs factory | |
| Krasny et al. | The CERN Gamma Factory initiative: An ultra-high intensity gamma source | |
| Bulanov et al. | Neutrino oscillation studies with laser-driven beam dump facilities | |
| CN104979033A (en) | All-optical Compton gamma-ray and ultrashort pulse positron beam generation method | |
| Kaplan | Beyond attoseconds | |
| Lindner et al. | Towards swift ion bunch acceleration by high-power laser pulses at the Centre for Advanced Laser Applications (CALA) | |
| Ain et al. | Generation of GeV electron beam from a laser-plasma accelerator and its prospect as a desktop source of energetic positrons and gamma rays for applications | |
| Krause-Rehberg et al. | Use of superconducting linacs for positron generation: the EPOS system at the Forschungszentrum Dresden-Rossendorf (FZD) | |
| Kwon et al. | RAON experimental facilities for nuclear science | |
| Saxena et al. | Constraints on dark matter annihilation from M87: Signatures of prompt and inverse-Compton gamma rays | |
| Djourelov et al. | Project for a source of polarized slow positrons at ELI-NP | |
| Zhang et al. | Design of a high current RFQ for neutron production | |
| Moinard et al. | Spaced resolved analysis of suprathermal electrons in dense plasma | |
| de Haan | Possibilities for the Detection of Santilli Neutroids and Pseudo-protons | |
| Chesnokov et al. | Muon collider operating by means of the focusing crystals | |
| Iwashita et al. | Diversified Application of ILC | |
| Sarri et al. | A table-top laser-based source of short, collimated, ultra-relativistic positron beams | |
| Dong et al. | Dilepton Program with Time-of-Flight Detector at the STAR Experiment. Symmetry 2023, 15, 392 | |
| Hairong et al. | Research progress of quantum electrodynamics cascade and dense positron production driven by interaction between extremely intense lasers and solid targets | |
| Kunz et al. | Matter-dominated muon accelerator lattice simulation tools for COSY Infinity | |
| Asfandiyarov | Progress in the Construction of the MICE Cooling Channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151014 |
|
| RJ01 | Rejection of invention patent application after publication |