Method and system for measuring beam position of single-pass bpm

Abstract

The present application discloses a method and system for measuring the beam position of a single-pass BPM. The method comprises the following steps: obtaining beam current signals; performing power division processing on beam current signals to obtain multiple first analog signals; performing equal time difference delay processing on multiple first analog signals to obtain multiple second analog signals; Perform synthesis processing on the second analog signal to obtain a third analog signal; perform filtering processing on the third analog signal to obtain a fourth analog signal; perform ADC sampling processing on the fourth analog signal to obtain a first digital signal; obtain a beam trigger signal According to the beam current trigger signal, the first digital signal is windowed and intercepted to obtain the second digital signal; the second digital signal is copied and spliced ​​to obtain the third digital signal; the third digital signal is filtered to obtain the fourth digital signal A digital signal; according to the fourth digital signal, the beam position data is obtained, the number of ADC sampling points is increased, and the measurement accuracy of the BPM is improved.

Description

technical field [0001] The present invention generally relates to the field of high-energy physics, specifically to the field of particle accelerators, and in particular to a method and system for measuring the beam position of a single-pass BPM. Background technique [0002] In the field of particle accelerators, a digital BPM (Beam Position Monitor, beam position detector) is a key device for beam position measurement. The system hardware is designed for the purpose of completing high-resolution beam position measurement. The hardware structure mainly includes: BPM probe, coaxial transmission cable, radio frequency conditioning circuit and digital processing circuit. The software algorithm is realized in the FPGA (Field Programmable Gate Array, Field Programmable Gate Array) chip of the digital processing circuit, and the computer language used is HDL (Hardware Description Language, hardware description language). [0003] At present, the linear BPM electronics used in th...

AI Technical Summary

Problems solved by technology

[0003] At present, the linear BPM electronics used in the linear accelerator is provided by a Slovenian commercial company. Its linear BPM algorithm is completely closed to users, and the specific design ideas of the algorithm cannot be found in the published literature.

Images