Compact type high-frequency electric focusing hybrid acceleration cavity

A high-frequency electric and compact technology, applied in the field of nuclear energy, can solve the problems of poor beam acceleration quality, ion beam acceleration, and low acceleration efficiency, and achieve the effects of high shunt impedance, reduced high-frequency power consumption, and reduced control costs.

Inactive Publication Date: 2018-04-10
INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve the acceleration of the ion beam current of the low-energy DC beam, it avoids the problems of low acceleration efficiency, poor beam acceleration quality, complicated control and numerous components in the existing technology

Method used

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  • Compact type high-frequency electric focusing hybrid acceleration cavity
  • Compact type high-frequency electric focusing hybrid acceleration cavity
  • Compact type high-frequency electric focusing hybrid acceleration cavity

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Example 1: see figure 1 , figure 2 , image 3 , Figure 4 , a compact high-frequency electric focusing hybrid acceleration cavity, its main feature is that it is included in the chamber barrel 3, and a radio frequency quadrupole accelerating structure 1 is arranged at the front end of the drift tube acceleration and high-frequency electric quadrupole focusing accelerating structure 2, A second acceleration gap 2-1 is provided at the center of the drift tube acceleration and high-frequency electric quadrupole focusing acceleration structure 2, and a first acceleration gap 1-1 is provided at the center of the radio frequency quadrupole acceleration structure 1, and the first acceleration gap 1- 1 and the second acceleration gap 2-1 are on the same center line, and the radii of the first acceleration gap 1-1 and the second acceleration gap 2-1 are equal. The radio frequency quadrupole acceleration structure 1 and the drift tube acceleration and high frequency electric ...

Embodiment 2

[0032] Example 2: see figure 1 , figure 2 , image 3 , Figure 4 , a compact high-frequency electric focusing hybrid acceleration cavity, including in the chamber 3, a radio frequency quadrupole accelerating structure 1 is arranged at the front end of the drift tube acceleration and high-frequency electric quadrupole focusing accelerating structure 2, and the drift tube accelerating The center of the high-frequency electric quadrupole focusing acceleration structure 2 is provided with a second acceleration gap 2-1, and the center of the radio frequency quadrupole acceleration structure 1 is provided with a first acceleration gap 1-1, and the first acceleration gap 1-1 is connected with the second acceleration gap 1-1. The acceleration gaps 2-1 are on the same centerline, and the radius of the first acceleration gap 1-1 is 2 mm smaller than that of the second acceleration gap 2-1. The radio frequency quadrupole acceleration structure 1 and the drift tube acceleration and hi...

Embodiment 3

[0042] Embodiment 3: see figure 1 , figure 2 , image 3 , Figure 4 , a compact high-frequency electric focusing hybrid acceleration chamber, in the cavity 3, a radio frequency quadrupole accelerating structure 1 is arranged at the front end of the drift tube acceleration and high-frequency electric quadrupole focusing acceleration structure 2, and the drift tube acceleration and high-frequency electric quadrupole focusing acceleration structure 2 The center of the frequency electric quadrupole focusing acceleration structure 2 is provided with a second acceleration gap 2-1, the center of the radio frequency quadrupole acceleration structure 1 is provided with a first acceleration gap 1-1, the first acceleration gap 1-1 and the second acceleration gap 2-1 On the same central line, the radius of the first acceleration gap 1-1 is 5mm smaller than that of the second acceleration gap 2-1. The radio frequency quadrupole acceleration structure 1 and the drift tube acceleration a...

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Abstract

The invention relates to a compact type high-frequency electric focusing hybrid acceleration cavity, and belongs to the technical field of nuclear energy. The compact type high-frequency electric focusing hybrid acceleration cavity is mainly characterized in that in a cavity cylinder, a radio-frequency quadrupole acceleration structure is arranged at the front end of the drift tube acceleration and high-frequency electric quadrupole focusing acceleration structure, a second acceleration gap is formed in the center of the drift tube acceleration and high-frequency electric quadrupole focusing acceleration structure, a first acceleration gap is formed in the center of the radio frequency quadrupole acceleration structure, the first acceleration gap and the second acceleration gap are locatedon the same center line, and the radius of the first acceleration gap is 0-5mm smaller than the radius of the second acceleration gap. The cavity has the advantages that the structure can directly accelerate the direct current beam coming out of the ion source, and due to the compact structure, the length of the cavity can be effectively reduced, the effective acceleration gradient is improved, and the beam quality is excellent.

Description

technical field [0001] The invention relates to a novel compact high-frequency electric focusing hybrid acceleration cavity, which belongs to the technical field of nuclear energy. Background technique [0002] The accelerating structures of low-energy ion accelerators mainly include radio frequency quadrupole accelerators and drift tube accelerators. The radio frequency quadrupole accelerator was developed in the 1970s. It is mainly used for the acceleration and focusing of the DC beam drawn from the ion source. Its advantage is that it can achieve horizontal and vertical focusing and acceleration of the beam at the same time, but the disadvantage is The acceleration efficiency is very low, the average acceleration capability is about 1MeV / m, and the output energy is basically about 3MeV. [0003] The drift tube accelerator was developed in the 1920s and 1930s, and it is a commonly used accelerating structure in particle accelerators. The main acceleration principle is th...

Claims

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Application Information

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IPC IPC(8): H05H7/00
CPCH05H7/001
Inventor 何源王志军
Owner INST OF MODERN PHYSICS CHINESE ACADEMY OF SCI
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