Beam position detector used for accelerator

Abstract

The invention provides a beam position detector used for an accelerator. By use of a cylindrical electrode with an obliquely cut end face, two parts with different area are allowed to appear on the surface of a single electrode. When beams pass through the detector and deflect towards one side with quite big area of one electrode in an electrode pair, sensing charges are gathered on the surface ofthe side of the electrode in a geometrical multiples manner, and arranged axially, so induced electromotive force is enhanced. Similarly, due to the separation of the beams, voltage signals acquiredby the other electrode in the electrode pair will be reduced in a geometrical multiples manner. In this way, in case of the same whole size of the electrode pair, quite induced area of the electrode can be ensured, the output voltage signals of the detector are allowed to be strong; the good linearity is achieved in the position of the beams. When the beams deflect, electric signal difference values between different electrodes in the same group of electrode pairs are amplified, so deflection quantity of beams can be rapidly and precisely reflected. When the sensitivity is ensured, precision is improved, and the detector is suitable for measurement of long beam groups or deflected beams.

Description

technical field [0001] The present application relates to the field of high-energy physics, and in particular to a beam position detector for an accelerator. Background technique [0002] In the field of high-energy physics, during the entire working process of the Rapid Cycle Synchrotron (RCS) of the Spallation Neutron Source (CSNS), the motion of the accelerated particles is very complicated, and the failure of the beam performance in any process may lead to the Process failure. Therefore, in the debugging, operation, and machine research of the accelerator, it is necessary to measure the beam position through the beam position detector, and correct the deviation direction of the beam according to the detection result to ensure the stable operation of the beam. [0003] When the high-energy beam passes through the detector, according to the principle of electromagnetic induction, the internal electrodes will induce a corresponding electromotive force. When the high-energy...

AI Technical Summary

Problems solved by technology

[0005] This application provides a beam position detector for accelerators, aiming to solve the problem of large errors in existing detectors

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