23 results about "Heavy ion beam" patented technology

The invention discloses a saline-alkaline tolerant rice mutation breeding identification and evaluation system based on heavy ion beam radiation, and relates to the technical field of intelligent agriculture, and the system comprises a phenotype dynamic sensing module which is used for carrying out real-time monitoring and abnormity identification on the growth state of rice under saline-alkaline stress so as to identify and output an early abnormal phenotype signal, and determining the abnormal phenotype of plant growth. According to the method, multi-dimensional phenotype data of rice under different saline-alkaline gradients are collected in real time through a multi-source sensor network, the problem of inconsistent growth periods caused by environmental differences is solved by utilizing a dynamic time warping algorithm, a basic identification data set with aligned time sequences is constructed, abnormal phenotype identification is further performed by adopting a local abnormal factor algorithm, and the identification accuracy is improved. Early deterioration early warning of the plant growth state under saline-alkali stress is achieved, the problems of high misjudgment rate and low efficiency in traditional field screening are effectively solved, and reliable data support is provided for early identification of saline-alkali tolerant rice varieties.

This invention belongs to the field of microbial metabolic engineering and synthetic biology, specifically relating to a strain for high-yield... R,R -2,3-Butanediol ( R,R Salt-tolerant Jeju Bacillus DT01 IM3 DLB6 (-2,3-BDO), production strain constructed from this strain and its application in fermentation production. R,R Applications of -2,3-BDO. This invention screens a high-yielding strain through heavy ion beam irradiation mutagenesis. R,R Jeju Bacillus DT01 IM3 DL B6 with -2,3-BDO, preservation number CGMCC No. 37311. This strain exhibits excellent salt tolerance and low endotoxin properties. The production strain constructed from it has extremely high product synthesis capabilities, enabling high-concentration, high-intensity industrial fermentation production.

The invention relates to the technical field of plant breeding, and particularly provides a method for increasing the content of active ingredients with edible value in radix achyranthis bidentatae. By accurately regulating and controlling the irradiation dose of the heavy ion beam, the content of core active ingredients such as photosynthetic pigments, soluble sugar, total flavonoids and total polysaccharides in the radix achyranthis bidentatae is remarkably increased, the quality of the radix achyranthis bidentatae is effectively improved, and a high-quality raw material is provided for developing high-value-added functional foods and traditional Chinese medicine preparations. According to the method, various antioxidant physiological indexes are comprehensively monitored, so that the mutagenic achyranthes bidentata plants have good growth vigor and stress resistance, and the balance of quality improvement and plant vitality is realized. A new way is provided for resource utilization of the overground stem and leaf parts of the achyranthes bidentata, comprehensive development and utilization of whole-plant resources of the achyranthes bidentata are promoted, resource waste is reduced, and a solid foundation is laid for creating high-yield and high-quality new germplasm of the achyranthes bidentata and promoting modern development of the traditional Chinese medicine industry.

The utility model relates to a kind of multi-axle heavy ion microporous membrane full-automatic irradiation device, including the following components of split design: roll membrane discharger, including several roll membrane discharging assemblies, several roll membrane discharging assemblies are arranged into several columns side by side;Roll membrane collector, including several roll membrane collecting assemblies, several roll membrane collecting assemblies are arranged into several columns side by side, the column number of several roll membrane collecting assemblies arrangement is same with the column number of several roll membrane discharging assemblies arrangement, roll membrane discharger and roll membrane collector between it is provided with link shaft, steering shaft, transmission shaft, for connecting roll membrane;Heavy ion beam vacuum cavity, between roll membrane discharger and roll membrane collector, for irradiation through the roll membrane of link shaft;Robot, respectively in the material inlet end of roll membrane discharger and the material outlet end of roll membrane collector. Full-automatic feeding and discharging can be realized, multi-angle beam current detection and beam current follow-up are realized, automatic material collecting and rectifying function is realized, and beam irradiation window realizes the automatic adjustment of temperature control.

This application provides a method and electronic device for determining the attribute information of a heavy ion beam compensator. The compensator is used to adjust the deviation of the heavy ion beam's range when entering a biological object. The method includes: acquiring image information of the biological object, wherein the image information includes a first region and a second region, the first region being a region inside the biological object in an abnormal state, and the second region being a region inside the biological object in a normal state, the second region being located within the surrounding area of ​​the first region; determining first state information of the first region, second state information of the second region, and determining a target energy value of the heavy ion beam based on the image information, wherein the target energy value is used to ensure that the heavy ion beam successfully reaches the first region; and determining the attribute information of the compensator based on the target energy value, the first state information, and the second state information. This application solves the technical problem of the inability to effectively determine the attribute information of the compensator.

The invention relates to the technical field of microorganisms, and particularly discloses bacillus coagulans 18 and application thereof in fermentation production of L-lactic acid. According to the invention, heavy ion beam mutagenesis is combined with high-temperature adaptive evolution breeding to obtain the high-temperature-resistant bacillus coagulans, specifically bacillus coagulans 18, and the preservation number of the bacillus coagulans 18 is CGMCC (China General Microbiological Culture Collection Center) No. 33049. The high-temperature resistance of the strain is remarkably improved, efficient production of lactic acid can be achieved at high temperature, particularly, a two-stage heating method process control strategy developed for the strain can remarkably improve the raw material conversion rate of the strain, and the strain is suitable for industrial production of lactic acid, reduces the economic cost of lactic acid biological manufacturing and is suitable for application and popularization.

To provide a method for efficiently producing nutritional stress tolerant mutants by inducing targeted mutations in plant nutrition.SOLUTION: According to the present invention, there is provided a method for producing a nutritional stress tolerant mutant, which comprises irradiating a plant with a heavy ion beam and, after the irradiation, cultivating the plant under nutritional stress conditions.SELECTED DRAWING: Figure 1

The invention discloses a high-charge heavy-ion high-energy-intensity laser. A high-intensity single-charge heavy-ion beam is obtained by transversely colliding a single-charge heavy-ion beam injection section with a low-speed multi-surface side-by-side correlation surface electron flow containing an unionized atom return channel; a high-intensity single-charge heavy ion beam is converted into a high-intensity high-charge heavy ion beam with the ionization degree of mu by adopting a flat runway-shaped high-speed multi-surface side-by-side correlation surface electron flow transverse collision high-charge heavy ion ionization ring with two high-charge ionization regions; high-charge heavy ion high-energy laser and heavy ion beam emission is realized by adopting a flat runway-shaped high-speed multi-surface side-by-side correlation surface electron flow to transversely collide with a high-charge heavy ion excitation ring. The intensity of surface electron flow, heavy ion beam and laser beam can be greatly improved by adopting the electrified thermionic cathode which is connected in parallel with the high-capacity super capacitor and has the width increased by more than five times. According to different laser wavelengths and powers, various practical purposes can be achieved from obtaining of a high-contrast holographic image of an internal atomic structure of a organism to serving as a novel high-energy strong laser weapon.

The invention relates to a compact superconducting cyclotron for isotope production. The high-current ion beam generator comprises a high-charge-state ECR ion source and a high-current proton source, the high-charge-state ECR ion source generates a milliampere-level high-charge-state heavy ion beam, and the high-current proton source generates a milliampere-level proton beam and a hydrogen molecule ion beam. An inlet of the injection beam line is connected with the high-charge-state ECR ion source and the high-current proton source. And a low-energy high-current ion mixed beam generated by the high-current ion beam generator is transmitted to the accelerator through the injection beam line. And the accelerator is connected with two symmetrical lead-out beam lines through a lead-out channel of the accelerator, and the two lead-out beam lines are positioned on the two sides of the accelerator so as to lead out a high-energy strong-current heavy ion beam and a high-energy strong-current proton beam. The advantages of the heavy ion beam and the proton beam are considered, and the medical TAT isotope is produced more efficiently and safely.

The invention provides a method and system for treating tumors by tracing and monitoring protons and heavy ions on line, and belongs to the technical field of radiation tumor treatment.The method comprises the steps that a proton beam or a heavy ion beam is controlled to irradiate a tumor target area of a patient; acquiring signal intensity and spatial distribution information of characteristic X-rays emitted from the body of the patient; acquiring a real-time Bragg peak dose deposition distribution image of the proton beam or the heavy ion beam in the tumor target area according to the signal intensity and the spatial distribution information; acquiring a position deviation and a dose deviation according to the real-time image and a preset treatment plan image; and dynamically adjusting beam parameters of the subsequently emitted proton beam or heavy ion beam according to the position deviation and the dose deviation. According to the invention, by detecting the characteristic signal generated in the treatment process in real time, visualization and closed-loop control of in-vivo dose deposition are realized.

The application provides a kind of sweet sorghum silage special compound microbial inoculant based on heavy ion beam irradiation breeding, and relates to the technical field of microbial breeding and silage feed, which is composed of Lactobacillus citreum mutant strain Lc15 and Pichia anomala mutant strain Pa22, and the inoculation ratio of the two strains in the compound microbial inoculant is 1:1 (volume ratio). The application has the following advantages: high acid production efficiency; the lactic acid production of Lc15 in the compound microbial inoculant is further improved compared with the original strain, the lactic acid production of the compound system is further improved compared with the original strain combination, and the pH value of the silage system can be quickly reduced; good synergistic performance; Pa22 and Lc15 are metabolically synergistic, which moderately increases the acetic acid content while improving the lactic acid production, thereby enhancing the aerobic stability and avoiding affecting the palatability; good genetic stability; the two mutant strains and the compound system have no significant fluctuation in acid production performance after being continuously passed for 9 times, which meets the demand of large-scale application.

The ion microscope and focused ion beam system with single optical device includes a vacuum chamber, an emitter, a gas pressure control device, an optical device, a voltage control module and a signal control module. The emitter, the optical device and a sample are disposed in an inner space of the vacuum chamber. The gas pressure control device stores a gas and is connected to a chamber wall of the vacuum chamber. The voltage control module is electrically connected to the emitter and the optical device to generate a draw voltage on the emitter and a bias voltage on the optical device. The signal control module is connected to the gas pressure control device and the voltage control module to generate a gas introduction control signal to cause the gas pressure control device to introduce the gas into the inner space, and to adjust the output bias voltage and the draw voltage to cause the emitter to generate a heavy ion beam and a light ion beam.

This invention discloses a method for heavy ion beam mutagenesis breeding of poultry. To address the challenges of efficient, rapid, and safe breeding in poultry, this method utilizes heavy ion beam irradiation of poultry progenitor cells (PGCs) to induce radiation mutagenesis, constructing a mutant cell library. The PGCs in this library are then isolated into single cells to form monoclonal populations. Targeted deep sequencing is used to screen for positive PGCs with gene mutations from the S2-after monoclonal population, and the mutated gene is preliminarily identified. Positive PGCs are injected via microinjection into recipient embryos after their own PGCs have been ablated, resulting in chimeras. Individuals developed from these chimeras undergo molecular screening and identification. M1 generation individuals containing the identified mutated gene are then used for breeding to obtain offspring strains that stably inherit the mutated gene. This method is efficient, rapid, safe, and avoids the ethical and regulatory risks associated with gene editing technologies, making it of significant application value for mutagenesis breeding in poultry.

According to the present disclosure, a system and method for verifying a heavy ion beam range are provided. The system may include: a first detector configured to acquire a first detection signal from radiation generated from an irradiated target to which the heavy ion beam is irradiated; a second detector disposed at a certain distance from the first detector and configured to acquire a second detection signal; and a control unit configured to extract a first effective neutron signal and a second effective neutron signal from the first detection signal and the second detection signal, respectively, and to determine the heavy ion beam range within the irradiated target using a neutron scattering image reconstructed based on the first effective neutron signal and the second effective neutron signal. According to the present disclosure, by proposing a new range verification technique that applies a neutron scattering imaging technique to determine the range of a heavy ion beam, the efficiency and precision of determining the range of a heavy ion beam within a measurement target can be improved.

This invention discloses a heavy ion mutagenesis breeding method for fish, belonging to the field of fish breeding technology. To address the technical problem of how to efficiently apply mutagenesis breeding technology in fish genetic improvement, this method first breeds the target fish species to obtain fertilized eggs in the single-cell stage; then, it uses a heavy ion beam to induce mutagenesis in the single-cell stage fertilized eggs, hatches and raises the mutagenized eggs to obtain an M1 generation population; next, it performs molecular screening to identify M1 generation individuals carrying one or more gene mutations; finally, it uses breeding methods to obtain offspring strains that can stably inherit the stated gene mutations. This invention shortens the breeding cycle from several generations to as short as 1-2 generations, significantly improving screening efficiency and providing an efficient, precise, and universally applicable pathway for rapidly creating new germplasm and strains of various fish species.

Systems and methods are disclosed that can measure the angle of incidence of ion beams, particularly ion beams comprising heavier ions.SOLUTION: In one embodiment, X-rays rather than ions are used to identify the channeling direction. In another embodiment, the workpiece is at least partially constructed of a material having a high molecular weight such that heavier ion beams can be measured. Further, in another embodiment, parameters of the ion beam are measured across the beam, allowing components of the ion implantation system to be further adjusted to produce a more uniform beam.SELECTED DRAWING: Figure 2

The invention discloses a radioactive beam charge multiplication device and method based on a single-gap deceleration structure, and relates to the technical field of particle physics and accelerators, and the device is sequentially provided with a single-charge-state ion source used for generating a 1 + charge-state ion beam; the first beam adjusting module is used for focusing and adjusting the single-charge-state ion beam, so that the ion beam can efficiently enter the ECR source; the rear end of the ground potential drift tube extends to the inlet of the ECR source to form a single-gap speed reduction structure; the ECR ion source serves as a charge proliferation device and is used for carrying out charge state proliferation on the injected single-charge-state ion beam, so that a high-charge-state ion beam is generated; the second beam adjusting module is used for focusing the high-charge-state ion beam; and the deflection magnet is used for deflecting and screening the high-charge-state ion beam so as to separate out the ion beam with a specific charge-to-mass ratio. According to the device and the method provided by the invention, a stable and high-flow-intensity high-charge-state heavy ion beam can be generated, and the beam energy generated by an accelerator is effectively improved.

The invention discloses a laser acceleration heavy ion analysis and diagnosis method and computer equipment, and the method comprises the steps: placing a solid track detector on a detection plane of a Thomson spectrometer, enabling a laser acceleration heavy ion beam to be deflected by the Thomson spectrometer and then to enter the solid track detector, forming a latent track, and obtaining ion track data based on the latent track; drawing a scatter diagram according to the ion track data, confirming an original point position of a Thomson spectrometer detection plane, and drawing parabola diagrams corresponding to ions with different charge-to-mass ratios according to the original point position of the plane; extracting ion track data of ions with a specific charge-to-mass ratio as calibration data based on the parabolic graph, and extracting ion tracks of ions with other charge-to-mass ratios; and drawing a two-dimensional phase diagram about track diameter-energy of each nucleus according to the ion track, eliminating interfering ions according to the two-dimensional phase diagram and the calibration data, and analyzing and confirming the type of target ions. The method has the effect of rapidly distinguishing laser heavy ions with the same charge-to-mass ratio ions.

The invention discloses mutagenic rhizobium pulsatilla for producing beta-1, 3-glucan at high yield as well as a preparation method and application of the mutagenic rhizobium pulsatilla, and belongs to the technical field of biology. The bacterial strain is rhizobium pusta RSFBMT-41666, and the preservation number of the bacterial strain is CGMCC (China General Microbiological Culture Collection Center) No.36520 The preparation method comprises the following steps: screening the rhizobium pustatae wild strain A414 from soil, carrying out 12C < 6 + > heavy ion beam irradiation and low-temperature plasma combined mutagenesis, and carrying out Congo red identification plate preliminary screening and shake flask fermentation secondary screening to obtain the rhizobium pustatae wild strain A414. The mutant strain takes glucose as a main carbon source, the yield of a fermentation product beta-1, 3-glucan reaches 31.4 g / L and is increased by 56% compared with that of a wild strain, the purity is 95.40%, and the mutant strain is excellent in water solubility and has special rheological properties. The problems that an existing strain is high in carbon source cost and low in glucose utilization efficiency are solved, the industrial production cost is reduced, and the product has wide application prospects in the fields of food, medicine and cosmetics.

This invention provides a method, apparatus, and electronic device for determining radiotherapy plans based on nanodosimetry, relating to the field of radiation technology. The method for determining radiotherapy plans based on nanodosimetry includes: obtaining time-varying distribution data of nanodosimetry within a mixed heavy ion beam radiation field using a simulation platform; wherein the mixed heavy ion beam radiation field corresponds to a candidate radiotherapy plan at an ultra-high dose rate for the target patient; the ultra-high dose rate is a dose rate greater than a target threshold; based on the time-varying distribution data of nanodosimetry, obtaining a dose correction factor corresponding to the candidate radiotherapy plan using a cell survival fraction model; and adjusting the candidate radiotherapy plan according to the dose correction factor to obtain the target radiotherapy plan for the target patient. This invention can establish an accurate and reliable biophysical model of a heavy ion ultra-high dose rate radiation field, enabling the determination of precise radiotherapy plans based on this biophysical model.

This invention belongs to the field of microbial fermentation technology, specifically relating to a high-yield isobutanol-producing Jejubacterium chassis strain, and a method for obtaining an isobutanol-producing strain and fermenting to produce isobutanol using this strain. This invention obtains Jejubacterium DT01 IM3 DL3 (CGMCC No. 30883) through heavy ion beam mutagenesis combined with MP6 plasmid-mediated random mutagenesis screening. The isobutanol-producing strain constructed using Jejubacterium DT01 IM3 DL3 as the chassis strain achieves an isobutanol yield of 11.9 g / L in shake-flask fermentation, and a super-high yield of 148 g / L was achieved in a 3L fermenter scale-up experiment. Furthermore, fermentation can be carried out at different salt concentrations (10-60 g / L), providing a possibility for industrial production using high-salt or open fermentation processes.

The application provides an ion irradiation method for improving the performance of copper-based superconducting tapes, and belongs to the technical field of ion irradiation.The ion irradiation method comprises the following steps: under vacuum conditions, ion irradiation is performed on a copper-based superconducting tape by using an ion beam; the ion beam comprises a light ion beam or a heavy ion beam.The application realizes effective modification of the copper-based superconducting tape by precisely controlling the energy, dose and flow intensity of the ion beam, significantly improves the current-carrying performance of the 2G- HTS tape under high temperature and high field, and increases the critical current density Jc by 2.1-5 times.In addition, the application can modify the copper-based superconducting tape according to specific requirements, thereby improving the consistency and stability of the modification effect.

The invention discloses a waterproof, breathable and sound-producing spherical roof with a nano-microsphere layer of more than 50 mu. The waterproof, breathable and sound-producing spherical roof is prepared by the following steps: irradiating and bombarding a rigid and tough material of more than 50 mu by using a heavy ion beam to form a heavy ion nuclear track membrane down-hole base material, etching the down-hole base material to obtain micron pores with the pore diameter of more than 1.5 mu m, and carrying out sound production on the micron pores to obtain the waterproof, breathable and sound-producing spherical roof. And a substrate having a number of more than 100,000 pores per square centimeter. The micron-hole base material is coated with the nano-microsphere waterproof breathable layer formed by stacking nano-microsphere spherical linkage, the oleophobic and hydrophobic layer with the breathable function is arranged on the nano-microsphere waterproof breathable layer, the waterproof grade can reach 50 m or above, and the loudspeaker sounding globe roof which is waterproof, breathable, oleophobic, hydrophobic, high in mechanical strength, good in rigidity and high in toughness is obtained. The rigidity of the spherical roof used as a loudspeaker sounding spherical roof is met, and the spherical roof used as a deep waterproof self-pressure-relief loudspeaker product has waterproof, breathable, oleophobic, hydrophobic, rigid and toughness requirements of tearing resistance under deep water and high pressure.