skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fermilab Recycler Ring BPM Upgrade Based on Digital Receiver Technology

Abstract

Electronics for the 237 BPMs in the Fermilab Recycler Ring have been upgraded from a log-amplifier based system to a commercially produced digitizer-digital down converter based system. The hardware consists of a pre-amplifier connected to a split-plate BPM, an analog differential receiver-filter module and an 8-channel 80-MHz digital down converter VME board. The system produces position and intensity with a dynamic range of 30 dB and a resolution of {+-}10 microns. The position measurements are made on 2.5-MHz bunched beam and barrier buckets of the un-bunched beam. The digital receiver system operates in one of six different signal processing modes that include 2.5-MHz average, 2.5-MHz bunch-by-bunch, 2.5-MHz narrow band, unbunched average, un-bunched head/tail and 89-kHz narrow band. Receiver data is acquired on any of up to sixteen clock events related to Recycler beam transfers and other machine activities. Data from the digital receiver board are transferred to the front-end CPU for position and intensity computation on an on-demand basis through the VME bus. Data buffers are maintained for each of the acquisition events and support flash, closed orbit and turn-by-turn measurements. A calibration system provides evaluation of the BPM signal path and application programs.

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Fermi National Accelerator Laboratory, Batavia, FL 60501-0500 (United States)
Publication Date:
OSTI Identifier:
20630270
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 732; Journal Issue: 1; Conference: 11. beam instrumentation workshop, Knoxville, TN (United States), 3-6 May 2004; Other Information: DOI: 10.1063/1.1831147; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; AMPLIFIERS; BEAM BUNCHERS; BEAM BUNCHING; BEAM MONITORING; BEAM POSITION; CALIBRATION; DATA PROCESSING; DIAGNOSTIC TECHNIQUES; FERMILAB; KHZ RANGE; MHZ RANGE; ORBITS; PARTICLE BEAMS; SIGNALS; STORAGE RINGS

Citation Formats

Webber, R, Crisp, J, Prieto, P, Voy, D, Briegel, C, McClure, C, West, R, Pordes, S, and Mengel, M. Fermilab Recycler Ring BPM Upgrade Based on Digital Receiver Technology. United States: N. p., 2004. Web. doi:10.1063/1.1831147.
Webber, R, Crisp, J, Prieto, P, Voy, D, Briegel, C, McClure, C, West, R, Pordes, S, & Mengel, M. Fermilab Recycler Ring BPM Upgrade Based on Digital Receiver Technology. United States. https://doi.org/10.1063/1.1831147
Webber, R, Crisp, J, Prieto, P, Voy, D, Briegel, C, McClure, C, West, R, Pordes, S, and Mengel, M. Wed . "Fermilab Recycler Ring BPM Upgrade Based on Digital Receiver Technology". United States. https://doi.org/10.1063/1.1831147.
@article{osti_20630270,
title = {Fermilab Recycler Ring BPM Upgrade Based on Digital Receiver Technology},
author = {Webber, R and Crisp, J and Prieto, P and Voy, D and Briegel, C and McClure, C and West, R and Pordes, S and Mengel, M},
abstractNote = {Electronics for the 237 BPMs in the Fermilab Recycler Ring have been upgraded from a log-amplifier based system to a commercially produced digitizer-digital down converter based system. The hardware consists of a pre-amplifier connected to a split-plate BPM, an analog differential receiver-filter module and an 8-channel 80-MHz digital down converter VME board. The system produces position and intensity with a dynamic range of 30 dB and a resolution of {+-}10 microns. The position measurements are made on 2.5-MHz bunched beam and barrier buckets of the un-bunched beam. The digital receiver system operates in one of six different signal processing modes that include 2.5-MHz average, 2.5-MHz bunch-by-bunch, 2.5-MHz narrow band, unbunched average, un-bunched head/tail and 89-kHz narrow band. Receiver data is acquired on any of up to sixteen clock events related to Recycler beam transfers and other machine activities. Data from the digital receiver board are transferred to the front-end CPU for position and intensity computation on an on-demand basis through the VME bus. Data buffers are maintained for each of the acquisition events and support flash, closed orbit and turn-by-turn measurements. A calibration system provides evaluation of the BPM signal path and application programs.},
doi = {10.1063/1.1831147},
url = {https://www.osti.gov/biblio/20630270}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 732,
place = {United States},
year = {2004},
month = {11}
}