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Title: Fast readout algorithm for cylindrical beam position monitors providing good accuracy for particle bunches with large offsets

Here, a simple, analytically correct algorithm is developed for calculating “pencil” relativistic beam coordinates using the signals from an ideal cylindrical particle beam position monitor (BPM) with four pickup electrodes (PUEs) of infinitesimal widths. The algorithm is then applied to simulations of realistic BPMs with finite width PUEs. Surprisingly small deviations are found. Simple empirically determined correction terms reduce the deviations even further. The algorithm is then tested with simulations for non-relativistic beams. As an example of the data acquisition speed advantage, a FPGA-based BPM readout implementation of the new algorithm has been developed and characterized. Lastly, the algorithm is tested with BPM data from the Cornell Preinjector.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States). Collider Accelerator Department
  2. Cornell Univ., Ithaca, NY (United States). CLASSE
Publication Date:
Report Number(s):
BNL-203422-2018-JAAM
Journal ID: ISSN 0034-6748
Grant/Contract Number:
SC0012704; AC02-98CH10886
Type:
Accepted Manuscript
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 89; Journal Issue: 4; Journal ID: ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS
OSTI Identifier:
1431277
Alternate Identifier(s):
OSTI ID: 1434557

Thieberger, Peter, Gassner, D., Hulsart, R., Michnoff, R., Miller, T., Minty, M., Sorrell, Z., and Bartnik, A.. Fast readout algorithm for cylindrical beam position monitors providing good accuracy for particle bunches with large offsets. United States: N. p., Web. doi:10.1063/1.5021607.
Thieberger, Peter, Gassner, D., Hulsart, R., Michnoff, R., Miller, T., Minty, M., Sorrell, Z., & Bartnik, A.. Fast readout algorithm for cylindrical beam position monitors providing good accuracy for particle bunches with large offsets. United States. doi:10.1063/1.5021607.
Thieberger, Peter, Gassner, D., Hulsart, R., Michnoff, R., Miller, T., Minty, M., Sorrell, Z., and Bartnik, A.. 2018. "Fast readout algorithm for cylindrical beam position monitors providing good accuracy for particle bunches with large offsets". United States. doi:10.1063/1.5021607.
@article{osti_1431277,
title = {Fast readout algorithm for cylindrical beam position monitors providing good accuracy for particle bunches with large offsets},
author = {Thieberger, Peter and Gassner, D. and Hulsart, R. and Michnoff, R. and Miller, T. and Minty, M. and Sorrell, Z. and Bartnik, A.},
abstractNote = {Here, a simple, analytically correct algorithm is developed for calculating “pencil” relativistic beam coordinates using the signals from an ideal cylindrical particle beam position monitor (BPM) with four pickup electrodes (PUEs) of infinitesimal widths. The algorithm is then applied to simulations of realistic BPMs with finite width PUEs. Surprisingly small deviations are found. Simple empirically determined correction terms reduce the deviations even further. The algorithm is then tested with simulations for non-relativistic beams. As an example of the data acquisition speed advantage, a FPGA-based BPM readout implementation of the new algorithm has been developed and characterized. Lastly, the algorithm is tested with BPM data from the Cornell Preinjector.},
doi = {10.1063/1.5021607},
journal = {Review of Scientific Instruments},
number = 4,
volume = 89,
place = {United States},
year = {2018},
month = {4}
}