Circular accelerator magnetic field measuring device

A cyclotron and magnetic field measurement technology, which is applied in the direction of the size/direction of the magnetic field, can solve problems such as the inability to compensate atmospheric pressure, and achieve the effect of accurate data and accurate data

Active Publication Date: 2014-03-26
CHINA INSTITUTE OF ATOMIC ENERGY
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Problems solved by technology

However, this method is based on the accuracy and engineering experience of the magnetic field finite element

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  • Circular accelerator magnetic field measuring device

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Embodiment Construction

[0014] The specific embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] Such as figure 1 Shown is the cyclotron magnetic field measurement device provided by the present invention, including a movement mechanism 1 arranged inside the main magnet 3 and capable of magnetic field measurement 1, a motor 4 arranged outside the main magnet 3 and connected to the movement mechanism 1, and a movement mechanism 1 Data lines 14, 2 connected to the motor 4. In order to ensure that the magnetic field measurement data is more accurate, the present invention arranges the movement mechanism 1, the motor 4, and the data line 2 in the corresponding enclosed space respectively, so that the measurement can be performed under vacuum conditions.

[0016] The enclosed space of the movement mechanism 1 is enclosed by the vacuum chamber 5 outside the main magnet, the upper cover 7 above the main magnet, and the lower cover...

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Abstract

The invention discloses a circular accelerator magnetic field measuring device. The device comprises a movement mechanism (1), a motor (4) and data lines (2, 14), wherein the movement mechanism (1) is arranged inside a main magnet (3) and can measure a magnetic field, the motor (4) is arranged outside the main magnet (3) and connected with the movement mechanism (1), and the data lines (2, 14) are connected with the movement mechanism (1) and the motor (4). The movement mechanism, the motor and the data lines connected with the movement mechanism and the motor are all arranged in closed space. According to the technical scheme, it is ensured that the measuring device can operate under the vacuum conditions, the accuracy of a measuring result is ensured, and data which are more accurate are provided for magnetic field shimming and particle dynamics computation.

Description

Technical field [0001] The invention belongs to the field of cyclotrons, and specifically relates to a cyclotron magnetic field measuring device. Background technique [0002] In the operation of the cyclotron, the center plane and valley area of ​​the accelerator are always in a high vacuum state, and the magnetic field measurement process is generally carried out under the atmosphere. Therefore, the magnetic field measurement results cannot truly represent the magnetic field value during the operation of the accelerator, especially for In a large cyclotron, the atmospheric pressure weighs hundreds of tons. The atmospheric pressure causes the deformation of the accelerator magnet. The deformation of the magnet affects the magnetic field distribution in the center plane of the accelerator and further affects the beam quality of the accelerator. The common practice at home and abroad is to use the vacuum shimming factor to compensate, such as the Belgian IBA company and the CYCIAE...

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Application Information

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IPC IPC(8): G01R33/02
Inventor 吕银龙钟俊晴张天爵曹磊
Owner CHINA INSTITUTE OF ATOMIC ENERGY
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