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A pet/spect/bnct three-purpose small medical cyclotron

A cyclotron, small-scale technology, applied in the direction of magnetic resonance accelerators, accelerators, electrical components, etc., can solve the problems of increasing the volume of the accelerator system, limited function, beam loss, etc., to suppress space charge effects, solve injection problems, guarantee the effectiveness of the structure

Inactive Publication Date: 2016-05-04
武汉当代核技术有限公司
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Problems solved by technology

However, for mA-level accelerators, the effect of the buncher is very limited, and it will destroy the neutralization of the beam in the injection line, which will increase the beam envelope and cause beam loss, and the installation of the buncher will increase The complexity of the medical accelerator increases the size of the accelerator system, making it impossible to miniaturize the medical cyclotron
In a large accelerator or even a tokamak device, the pressure vessel is injected with an inert gas to make H - Ion neutralization, but this is not suitable for use on injection lines of compact small cyclotrons

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  • A pet/spect/bnct three-purpose small medical cyclotron
  • A pet/spect/bnct three-purpose small medical cyclotron

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0021] Such as figure 1 As shown, the main structural components of the medical cyclotron proposed in the present invention include an ion source system 2, an injection system 3, a main magnet system 4, a high-frequency system 6, a two-way stripping extraction system one 1, an extraction system two 8, and an extraction system three 9 , lead to system four 10 and so on. The ion source system 2 generates strong negative hydrogen ions, and injects H- particles into the accelerator through the injection system 3 for acceleration. The injection system 3 is arranged coaxially with the main magnet system 4, and negative hydrogen ions are injected into the accelerator from the axial direction of the main magnet. Accelerate through the acceleration voltage provided by the high-frequency system 6, and then the H - Ions are stripped into proton beams fo...

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Abstract

The invention discloses a PET / SPECT / BNCT (positron emission tomography / single photon emission computed tomography / boron neutron capture therapy) three-purpose small medical cyclotron which comprises an ion source system, an injection system, a high-frequency system, a magnet system and a lead-out system, wherein the external ion source system is connected with the injection system; particles are deflected through the magnet system while being accelerated through the high-frequency system; the injection system is used for injecting high-current beam to a central region of the small medical cyclotron in a matched way through charge neutralization. The invention provides a compact small medical cyclotron which not only guarantees the volume and the vacuum degree but also can greatly improve the current intensity and can be used for PET, SPECT and BNCT at the same time.

Description

technical field [0001] The invention relates to the field of medical cyclotrons, in particular to a PET / SPECT / BNCT three-purpose small medical cyclotron. Background technique [0002] Small-scale medical cyclotrons usually use a magnetic field to make charged particles do cyclotron motion, and are repeatedly accelerated by a high-frequency electric field during the motion, and the beam is drawn out to target and produce PET, SPECT and other diagnostic or therapeutic radioactive isotopes. There are a few small medical cyclotrons under development. The accelerator is used to target and produce neutrons for BNCT. Its basic structure includes ion source system, main magnet system, high frequency system, extraction system, etc. At present, this type of medical cyclotron is usually single-purpose, which is used to produce PET, radioisotopes for SPECT, or neutrons for BNCT. Today, with the increasing incidence of malignant tumors and cardiovascular and cerebrovascular diseases, i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05H13/00H05H7/08
Inventor 周青梅杰拉德·杜特彼得·西格
Owner 武汉当代核技术有限公司
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