Test of fast-digital beamline feedback control at the photon factory

Author

Nakamura, Norio ; Katsura, Tomotaro

Author_Institution

KEK, Nat. Lab. for High Energy Phys., Ibaraki, Japan

fYear

1993

fDate

17-20 May 1993

Firstpage

2257

Abstract

A fast-digital feedback system stabilizing the photon beam position for a beamline was tested. A DSP (digital signal processor) board linked with 16-bit ADC and 14-bit DAC boards was used as a digital controller of the feedback system. The DSP system sampled the signals from a photon beam position monitor at a high rate of 10 kHz and set the magnet currents for a 3-magnet orbit bump steering system at the same rate. The system frequency response was easily compensated in gain and phase by programming. As a result, the feedback system well suppressed the beam motion up to 100 Hz

Keywords

analogue-digital conversion; beam handling equipment; beam handling techniques; computerised control; controllers; digital control; digital signal processing chips; digital-analogue conversion; electron accelerators; feedback; frequency response; nuclear electronics; particle beam diagnostics; physical instrumentation control; physics computing; storage rings; 10 kHz; 100 Hz; 14-bit DAC boards; 16-bit ADC; 3-magnet orbit bump steering; DSP board; beam motion; digital controller; digital signal processor; fast-digital beamline feedback control; fast-digital feedback system; magnet currents; photon beam position monitor; photon beam position stabilization; photon factory; system frequency response; Control systems; Digital signal processing; Feedback control; Monitoring; Particle beams; Power supplies; Production facilities; Sampling methods; System testing; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1993., Proceedings of the 1993

Conference_Location

Washington, DC

Print_ISBN

0-7803-1203-1

Type

conf

DOI

10.1109/PAC.1993.309287

Filename

309287