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Analysis of sextupole effects on β function beating in the SSRF storage ring
SSRF storage ring sextupole β function structural resonance stop-band
2009/8/17
In a storage ring, asymmetry of the β function with momentum deviation is the main reason for asymmetry of the dynamic aperture. This paper applies simulation method based on AT code in Matlab to inve...
Digital prototype of LLRF system for SSRF
LLRF controller field programming gate array feedback algorithm clock distribution local oscillator
2009/8/14
This paper describes a field programming gate array (FPGA) based low level radio frequency (LLRF) prototype for the SSRF storage ring RF system. This prototype includes the local oscillator (LO), anal...
Optimal sorting method and application to SSRF booster dipoles
sorting local cancellation simulated annealing mix method SSRF booster
2009/8/14
As the dipoles of SSRF booster are powered in series, the magnet field error varies from magnet to magnet and results in bad beam quality. Sorting and installing magnets according to the measured fiel...
整个高频系统包括谐振加速腔、高频功率源和180kW发射机、低电平控制与连锁保护.高频工作频率为499.65MHz.SSRF 500MHz低电平控制系统由信号源、反馈控制回路(频率调谐环路、相位控制环路、幅度控制环路)和连锁保护等构成.加速器高频腔控制系统的稳定性是加速器设计中一项重要指标,特别是在高流强条件下,更是对高频的稳定性提出了较高的要求.如何在加速器中合理地利用先进技术,是整机工作在稳定可...