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Method for producing radionuclide

A radionuclide and production method technology, applied in the field of radionuclide production, can solve the problems of repeated start-up and use in a short period of time, inability to produce online, and poor flexibility of use, so as to reduce radiation protection costs, reduce production and operation costs, The effect of improving overall performance

Inactive Publication Date: 2008-04-02
王黎
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The purpose of the present invention is to overcome the shortcomings of the existing cyclotron production method for radionuclides and provide a radionuclide with multi-purpose, randomized on-line production, highly integrated, small volume, stable method and low-cost production. The production method solves the shortcomings of the existing cyclotron production method of radionuclides such as low efficiency, inability to produce on-line, large equipment volume, complex design, inability to start and use repeatedly in a short period of time, poor flexibility of use and high maintenance costs

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  • Method for producing radionuclide
  • Method for producing radionuclide
  • Method for producing radionuclide

Examples

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Embodiment 1

[0043] Example 1: Method of radionuclide production without particle beam acceleration process:

[0044] The radionuclide production method of this embodiment is to use a high-power laser to interact with a primary target to generate a particle beam; after the particle beam is focused, it interacts with a radionuclide target material to produce a radionuclide after a nuclear reaction.

[0045] The specific steps are as follows:

[0046] 1] Generating laser beams: high-power lasers generate high-energy, high-density laser beams, and the power on the laser spot needs to reach 10 15 W / cm 2 above.

[0047] 2] Generation of particle beams: high-energy particle beams are used to interact with primary targets to complete 180 (p, n) 18 F nuclear reaction produces particle beams, and the energy of the particle beams needs to be greater than 1.5 MeV; different primary targets are selected according to the production of radionuclides to produce proton beams, neutron beams or deuterium...

Embodiment 2

[0051] Example 2: Method for radionuclide production with particle beam acceleration process:

[0052] When large doses of radionuclides need to be produced, the focused particle beam can be re-accelerated; in this embodiment, the radionuclide production method is to use a high-power laser and a primary target to generate a particle beam; the particle beam is focused and re-accelerated. After acceleration, it interacts with the radionuclide target material and produces radionuclide after a nuclear reaction occurs. Specific steps are as follows:

[0053] 1] Generating laser beams: high-power lasers generate high-energy, high-density laser beams, and the power on the laser spot needs to reach 10 15 W / cm 2 above.

[0054] 2] Generate particle beam: Generate particle beam: high-energy particle beam is used to interact with the primary target to complete 180 (p, n) 18 F nuclear reaction produces particle beams, and the energy of the particle beams needs to be greater than 1.5 M...

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Abstract

The invention discloses a production method for radionuclide and includes the following steps: a high power laser is adopted to match with a primary target to generate particle beam; the particle beam completes nuclear reaction with the matter on a radionuclide target after focusing and accelerating so as to generate target radionuclide. The method overcomes the disadvantages of the prior radionuclide production method through adopting cyclotron such as low efficiency, incapability of on-line production, big equipment volume, complex design, incapability of repeated starting up for use in a short time, poor flexibility in use and high maintenance cost; meanwhile, the invention has the advantages of instant on-line production of radionuclide, realization of desktop radionuclide production system, low shielding requirements of equipment, overall performance improvement of radionuclide production system and reduction in production and operating costs.

Description

technical field [0001] The invention relates to a method for producing radionuclides by using high-power laser beams. Background technique [0002] Radionuclides are the basis and precursor of clinical molecular imaging. If there is no positron nuclide (positron nuclide), then PET, PET / CT, PET / MRI and other equipment cannot play their clinical role and value. The current clinical routine uses the medical cyclotron method to produce radionuclides, such as 15 O. 13 N. 11 C. 18 F. 124 I and 64 Cu et al. The medical cyclotron method (Cyclotron) first needs an ion source (ionicsource) to generate ions (generally using H 2 The method of ionizing into ions), and then the ion beam is accelerated in the cyclotron, and when the energy reaches the preset energy, the accelerated ion beam is extracted and the target material produced by the radionuclide undergoes a nuclear reaction to obtain all Positron radionuclides required. [0003] The technical defects and application pro...

Claims

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Application Information

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IPC IPC(8): G21G1/00
Inventor 王黎
Owner 王黎
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