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A method and device for generating medical isotopes based on a laser wakefield accelerator

A technology for generating devices and laser tailfields, which is applied in the field of nuclear applications, can solve problems such as cancellation and delay, and achieve the effect of cost economy and compact footprint

Inactive Publication Date: 2017-08-29
NANHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In particular, due to the 2008 99 Mo supply crisis, most case checks unavailable 99m Tc conducts SPECT and is postponed or canceled

Method used

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  • A method and device for generating medical isotopes based on a laser wakefield accelerator

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Embodiment Construction

[0021] The technical solutions of the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0022] The invention provides a medical isotope production method based on a laser wakefield accelerator, which uses the interaction between an ultra-intensive and ultra-short laser and a plasma to generate a high-current relativistic electron beam, and uses the electron beam to irradiate a high-atomic-number target to produce high-current bremsstrahlung gamma Ma light, bremsstrahlung gamma light bombards the target of interest, induces (γ, xn+yp) photonuclear reaction or (γ, γ') photoexcited reaction, and produces target isotopes, including gamma rays, electrons, and positrons , α particle emitter.

[0023] According to the above scheme, a medical isotope generating device based on a laser wakefield accelerator includes a laser compression cavity 10 for generating ultra-intense and ultra-short laser pulses, a laser focusing and diagn...

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Abstract

The invention provides a medical isotope generation method and device based on a laser wake-field accelerator. Interaction between super-strong and super-short lasers and plasma is utilized to generate a strong flow relativity electron beam. The electron beam is utilized to irradiate a high atomic number target to generate high-flow-strength bremsstrahlung gamma light. The bremsstrahlung gamma light bombards an interested object target to induce a ([gamma], xn+yp) photonuclear reaction or a ([gamma], [gamma]') optical excitation reaction, and object isotopes including gamma rays, electrons, positive electrons and [alpha] particle emitters are generated. By adopting the method provided by the invention, radio isotopes higher in activity are generated, and the cost is relatively low; in addition, the device provided by the invention is compact and convenient to carry, and the device is capable of being placed near a large-sized medical mechanism to be better applied to and serve radiation diagnosis, targeting treatment and other medical applications.

Description

technical field [0001] The invention relates to the technical field of nuclear applications, in particular to a method and device for producing medical isotopes based on a laser wakefield accelerator. Background technique [0002] As a branch of medicine, nuclear medicine uses non-natural isotopes (including radioisotopes and stable isotopes) and nuclear radiation for biomedical research and disease diagnosis and treatment. On the one hand, radiation produced by radioisotopes can be used to provide diagnostic information on a specific organ of an organism, and such diagnostic procedures are now routine; on the other hand, radionuclides can be selectively introduced into diseased tissues, using their The emitted α and β rays kill actively growing cancer cells or other diseased tissues to achieve the purpose of treatment. [0003] Tens of millions of nuclear medicine procedures are performed each year in more than 10,000 hospitals worldwide, 90% of which are for nuclear medic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21G4/02
CPCG21G4/02
Inventor 罗文艾念宋英明
Owner NANHUA UNIV
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