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Rotating target for accelerator neutron source

A rotating target and neutron source technology, applied in the field of rotating targets, can solve problems such as difficulty in obtaining cooling effect, difficult maintenance and repair of vacuum targets, and poor cooling effect, and achieve compact structure, high practicability and reliability, and easy replacement convenient effect

Inactive Publication Date: 2018-08-14
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The existing target cooling system does not have a good cooling effect on the target, and it is difficult to obtain a good cooling effect during high-power (greater than 15kW) operation, and the maintenance and repair of the vacuum target is difficult and expensive.

Method used

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  • Rotating target for accelerator neutron source
  • Rotating target for accelerator neutron source
  • Rotating target for accelerator neutron source

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Using aluminum as the material, it is processed into a liquid cooling ring with an outer diameter of 80cm, an inner diameter of 60cm, and a thickness of 3cm, and then processed into an S-shaped flow channel liquid cooling layer on one side. Channel interval 0.5cm, channel width 0.5cm, see Figure 4 .

[0040] After connecting the motor and the motor reducer through the shaft sleeve, fasten the connection plate with the screw, then install the sealing ring above the liquid cooling layer, then add the annular cover, and fix the annular cover with screws. Then connect the rotary joint to the shaft position, and connect the inlet and outlet pipes. Then add a 2mm beryllium target on the back of the rotating target, fix it with screws for assembly, and finally obtain the assembly diagram as shown in the figure below. Figure 5 .

[0041] The corresponding structure is theoretically calculated using the non-evaporative condensation model, and the cooling effect of the local...

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Abstract

The invention provides a rotating target system for an accelerator neutron source. The rotating target system comprises rotating target, a cooling liquid circulation unit and a rotary driving unit, wherein the rotating target comprises a liquid cooling ring and a connecting disk arranged at the center of the liquid cooling ring, a target layer is arranged on the liquid cooling ring, the connecting disk is connected with the liquid cooling ring through a hub support, the rotary driving unit is fixedly connected to one side of the connecting disk for driving the rotating target to rotate, and the cooling liquid circulation unit is used for supplying cooling liquid to the liquid cooling ring. The rotating target system provided by the invention adopts an annular target layer, and disperses heat generated by local irradiation to the entire ring by rotation, thereby reducing the high heat generated by the local irradiation through large-area cooling of the ring, ensuring high cooling efficiency and good effect, the cooling of high-power heat can be achieved, and the temperature of the target is well controlled.

Description

technical field [0001] The invention relates to the technical field of accelerators, in particular to a rotating target for neutron sources of accelerators. Background technique [0002] Boron neutron capture therapy technology is a binary heavy ion therapy technology based on molecular targeting. The basic principle of boron neutron capture therapy (BNCT) is: inject a certain pro-tumor boron-containing drug into the patient's body, the boron-containing drug quickly accumulates in the tumor cells, and then undergoes thermal neutron or epithermal neutron irradiation. 10 B(n,α) 7 Li reacts to release α and 7 Li particles, so as to achieve the purpose of killing tumor cells. Compared with conventional radiotherapy, BNCT has two advantages: 1) Because boron-containing drugs are targeted and α and 7 The killing effect of Li particles is limited to ingestion 10 The cells of drug B and their immediate neighbors such that the neutron pairs are not taken up 10 The radiation dam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H6/00H05K7/20
Inventor 陈卫强李强朱国善戴中颖
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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