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

Title: Design of a Multi-Bunch BPM for the Next Linear Collider

Abstract

The Next Linear Collider (NLC) design requires precise control of colliding trains of high-intensity (1.4 x 10{sup 10} particles/bunch) and low-emittance beams. High-resolution multi-bunch beam position monitors (BPMs) are required to ensure uniformity across the bunch trains with bunch spacing of 1.4ns. A high bandwidth ({approx}350 MHz) multi-bunch BPM has been designed based on a custom-made stripline sum and difference hybrid on a Teflon-based material. High bandwidth RF couplers were included to allow injection of a calibration tone. Three prototype BPMs were fabricated at SLAC and tested in the Accelerator Test Facility at KEK and in the PEP-II ring at SLAC. Tone calibration data and single-bunch and multi-bunch beam data were taken with high-speed (5Gsa/s) digitizers. Offline analysis determined the deconvolution of individual bunches in the multi-bunch mode by using the measured single bunch response. The results of these measurements are presented in this paper.

Authors:
Publication Date:
Research Org.:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Org.:
USDOE Office of Science (US)
OSTI Identifier:
812942
Report Number(s):
SLAC-PUB-8828
TRN: US0303523
DOE Contract Number:  
AC03-76SF00515
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 21 Mar 2003
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; BEAM POSITION; CALIBRATION; DESIGN; DIGITIZERS; LINEAR COLLIDERS; MONITORS; STANFORD LINEAR ACCELERATOR CENTER

Citation Formats

Young, Andrew. Design of a Multi-Bunch BPM for the Next Linear Collider. United States: N. p., 2003. Web. doi:10.2172/812942.
Young, Andrew. Design of a Multi-Bunch BPM for the Next Linear Collider. United States. doi:10.2172/812942.
Young, Andrew. Fri . "Design of a Multi-Bunch BPM for the Next Linear Collider". United States. doi:10.2172/812942. https://www.osti.gov/servlets/purl/812942.
@article{osti_812942,
title = {Design of a Multi-Bunch BPM for the Next Linear Collider},
author = {Young, Andrew},
abstractNote = {The Next Linear Collider (NLC) design requires precise control of colliding trains of high-intensity (1.4 x 10{sup 10} particles/bunch) and low-emittance beams. High-resolution multi-bunch beam position monitors (BPMs) are required to ensure uniformity across the bunch trains with bunch spacing of 1.4ns. A high bandwidth ({approx}350 MHz) multi-bunch BPM has been designed based on a custom-made stripline sum and difference hybrid on a Teflon-based material. High bandwidth RF couplers were included to allow injection of a calibration tone. Three prototype BPMs were fabricated at SLAC and tested in the Accelerator Test Facility at KEK and in the PEP-II ring at SLAC. Tone calibration data and single-bunch and multi-bunch beam data were taken with high-speed (5Gsa/s) digitizers. Offline analysis determined the deconvolution of individual bunches in the multi-bunch mode by using the measured single bunch response. The results of these measurements are presented in this paper.},
doi = {10.2172/812942},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {3}
}

Technical Report:

Save / Share: