Superconductive cyclotron extraction region beam measurement detection target head

Abstract

The invention discloses a superconductive cyclotron extraction region beam measurement detection target head, which comprises a probe target head and a fixation structure. The probe target head is formed by a multi-wire probe, a ceramic block and a connecting rod. One end of each tungsten wire passes through a through hole in the ceramic block and extends into the connecting rod; each tungsten wire is fixedly arranged in the ceramic block through welding; and the ceramic block is fixedly arranged in one end of the connecting rod through welding. The fixation structure comprises an aluminum alloy connecting piece and a drive rod. The connecting rod and the drive rod are connected through the aluminum alloy connecting piece. The detection target head can carry out measurement based on intensity of electrical signals on different wires and through a point motion mode of the drive rod to obtain axial and radial position information of the beam, so that beam debugging can be carried out, and stable and effective operation of an accelerator is realized; and the detection target head has the advantages of high resolution, high precision, simple measurement and capable of replacing the probe without opening the cavity.

Description

technical field [0001] The invention belongs to the technical field of isochronous superconducting cyclotrons, and in particular relates to a measurement and detection target used for position resolution of beam currents in the lead-out area of ​​the SC200 superconducting cyclotron host. Background technique [0002] A cyclotron is a device that uses a high-frequency electric field to accelerate protons to very high energies. Compared with other types of cyclotrons, it has the characteristics of continuous beam operation and high average current intensity. During the development of the accelerator, people have gradually realized that it is important in many technologies It has broad and very important applications in the national economy and the national economy, and is more and more widely used in nuclear physics, energy, medical and health fields, among which there is an upsurge in nuclear medicine. As an important part of the accelerator, the beam diagnostic system provid...

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Problems solved by technology

[0003] The object of the present invention is to provide a detection target for measuring the beam current in the lead-out area of ​​a superconducting cyclotron, which is used to measure the beam current position information in the lead-out area of ​​the host of a compact superconducting proton cyclotron. The limitation makes it difficult to place the beam device and the resolution of the measurement position is low. It can accurately measure the beam position information of the electrostatic deflection plate and the magnetic channel port, and provide a reference for the quality of the extracted beam and the operation of the accelerator. The measurement principle is simple Reliable, high feasibility, easy operation, etc.

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