Cyclotron fan-shaped dipolar ferromagnetic field measurement system and measurement method

Abstract

The invention discloses a cyclotron fan-shaped dipolar ferromagnetic field measurement system, which mainly comprises a three-dimensional measurement device, a power supply device and a deionized water circulating device; and is characterized in that the three-dimensional measurement device is provided with a motion displacement unit, a probe unit, a control unit and a data acquisition unit, can receive a control instruction to realize spatial motion in a magnetic field area, and measures and records the magnetic field intensity of the point; the power supply device is used for providing different currents for fan-shaped dipolar iron so as to generate corresponding magnetic field intensity; and the deionized water circulating device is used for cooling a fan-shaped dipolar iron coil and the power supply device to ensure normal operation of the measuring system. The invention further discloses a magnetic field measurement method adopting the measurement system. The magnetic field measurement method is used for measuring relevant performance parameters of fan-shaped dipolar iron excitation, integral field uniformity and transverse field uniformity. According to the invention, more accurate and comprehensive magnetic field intensity distribution can be obtained, the fan-shaped dipolar ferromagnetic field distribution characteristics are verified, and application in the field of accelerators is very wide.

Description

technical field [0001] The invention belongs to the technical field of magnetic field measurement, and more specifically relates to a cyclotron sector-shaped dipole ferromagnetic field measurement system and a measurement method. Background technique [0002] With breakthroughs in key core technologies such as nuclear physics and magnetic confinement, cyclotrons, as fusion devices for nuclear and magnetic high-tech projects, have been widely used in the fields of industry, physics and biology. The cyclotron device mainly includes the accelerator body and the transmission line. In order to realize the safe and reliable directional transmission of high-energy particles, the sector-shaped dipole iron provides high-uniformity and high-precision deflection magnetic field for the particles, which is an important part of the transmission line. Therefore, the magnetic field distribution characteristics of the sector-shaped dipole iron directly affect the transmission efficiency of t...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a cyclotron fan-shaped dipole ferromagnetic field measurement system and measurement method, by opening the deionized water circulation device, selecting a suitable water pressure, starting the power supply device, adjusting the current, starting the three-dimensional measuring device, and initializing the movement displacement Unit and data acquisition unit, adjust the position of the probe, set the scan step and scan trajectory in the control system, perform sector-shaped dipole iron excitation measurement, measure and record the magnetic field strength at P0 point under different currents, to solve the complicated measurement method in the prior art And it is not conducive to the miniaturization of the device and the problem of automatic measurement. The measurement of the uniformity of the integral field and the uniformity of the transverse field of the diode iron has the advantages of simple operation, high precision, miniaturization and integration, and measurement automation. It is widely used in the field of accelerators. widely

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