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Title: Status of Digital Orbit Feedback for SPEAR

Abstract

The present global orbit feedback system for SPEAR can adjust the electron beam position with a cycle time of 5 s. In addition, 50 Hz analog local servos stabilize the vertical photon beam position at monitors situated in the ten SSRL beamlines. The global and local systems will soon be merged into a single unified system operating from a dedicated DSP board. The goal is to acquire orbits, process the data, and correct beam position in a 1-2 ms interval to achieve a 30-50 Hz closed-loop bandwidth.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
813197
Report Number(s):
SLAC-PUB-9910
TRN: US0303745
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 30 May 2003
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM POSITION; ELECTRON BEAMS; FEEDBACK; MONITORS; PHOTON BEAMS; SPEAR

Citation Formats

Hettel, Robert. Status of Digital Orbit Feedback for SPEAR. United States: N. p., 2003. Web. doi:10.2172/813197.
Hettel, Robert. Status of Digital Orbit Feedback for SPEAR. United States. doi:10.2172/813197.
Hettel, Robert. Fri . "Status of Digital Orbit Feedback for SPEAR". United States. doi:10.2172/813197. https://www.osti.gov/servlets/purl/813197.
@article{osti_813197,
title = {Status of Digital Orbit Feedback for SPEAR},
author = {Hettel, Robert},
abstractNote = {The present global orbit feedback system for SPEAR can adjust the electron beam position with a cycle time of 5 s. In addition, 50 Hz analog local servos stabilize the vertical photon beam position at monitors situated in the ten SSRL beamlines. The global and local systems will soon be merged into a single unified system operating from a dedicated DSP board. The goal is to acquire orbits, process the data, and correct beam position in a 1-2 ms interval to achieve a 30-50 Hz closed-loop bandwidth.},
doi = {10.2172/813197},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 30 00:00:00 EDT 2003},
month = {Fri May 30 00:00:00 EDT 2003}
}

Technical Report:

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