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Mixed ion acceleration device

An ion acceleration and mixing technology, applied in accelerators, electrical components, etc., can solve the problems of large beam halo and easy beam diffusion, and achieve high transmission efficiency, narrow beam aperture, and good halo effect

Active Publication Date: 2015-03-25
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The interdigitated H-type accelerating structure has high electrical acceleration efficiency, but in the low light speed field (when the particle speed is low), the beam current is easy to diffuse due to the space charge effect, and the beam current halo is large

Method used

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] Such as figure 1 with 2 As shown, the hybrid ion acceleration device includes a cavity 1, and two parts of a radio frequency quadrupole field section 2 and a drift tube section 3 are arranged on the same center line in the cavity, and the radio frequency quadrupole field section 2 and the drift tube section 3 is correspondingly provided with a ground plate 4, and two T-shaped plates 5 are arranged symmetrically up and down in the cavity 1, and end plates 6 are provided at both ends of the cavity 1; the radio frequency quadrupole field section 2 includes Two sets of radio frequency quadrupole field rod electrodes 7, the radio frequency quadrupole field rod electrodes 7 are installed on the T-shaped plate 5 through the radio frequency quadrupole field electrode support 8 and the radio frequency quadrupole field electrode support rod 9, the radio frequency quadr...

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Abstract

The invention relates to the technical field of ion acceleration equipment, in particular to a mixed ion acceleration device. The device comprises a cavity, a radio frequency quadrupole field and a drift tube are arranged on the same center line in the cavity, a foundation plate is correspondingly arranged on the joint of the radio frequency quadrupole field and the drift tube, two T-shaped plates are symmetrically arranged in the cavity in an up-down mode, the two ends of the cavity are provided with end plates, the radio frequency quadrupole field comprises two bar type electrodes, the two adjacent bar type electrodes are installed on the T-shaped plates through an electrode support and an electrode support supporting rod, and electrode supporting contact parts are arranged between the electrode support and the bar type electrodes. The drift tube is of a multi-segment structure, each segment of drift tube is installed on the corresponding T-shaped plate through a drift tube supporting rod, the gap between every two adjacent drift tubes is of an interactive phase bunching structure, and the drift tube supporting rods are designed in an interdigitated H type. By means of the device, a lot of space and cost are saved, and the device is more economical and practical and has high transmission efficiency, high gradient acceleration ability and high power acceleration efficiency.

Description

technical field [0001] The invention relates to the technical field of ion acceleration equipment, in particular to a hybrid ion acceleration device. Background technique [0002] The radio frequency quadrupole field (RFQ) accelerator was proposed by Soviet scientists in 1969, and was famous and popularized by American scientists in 1984 for accelerating large currents. RFQ has four, two sets of symmetrical electrodes. Each group of electrodes of RFQ has the same potential and voltage, and the potential and voltage of the two groups are just opposite. This allows the RFQ to accelerate the particles (two sets of electrodes work together) and at the same time to bunch the particles (single set of electrodes). However, the electric acceleration efficiency of the RFQ acceleration structure is very low, and because of the frequency limitation of the cavity of the RFQ, the RFQ has great limitations in use. [0003] Since its birth in 1932, the drift tube (DT) accelerator has be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H7/02H05H7/22
Inventor 卢亮孙列鹏张周礼施龙波赵红卫
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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