Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 767, Issue -, Pages 379-384Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2014.09.020
Keywords
Particle accelerators; Diagnostics; Beam instrumentation; Ionization profile monitor
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Funding
- UT-Battelle, LLC, for the U.S. Department of Energy [DE-AC05-00OR22725]
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An ionization profile monitor (IPM) has been designed for the Spallation Neutron Source (SNS) accumulator ring with the goal of simplifying current IPM technology to provide accurate high-intensity beam profiles. Utilizing ionized electrons produced by beam gas ionization, the SNS IPM uses a 120 kV bias potential and uniquely designed electrode to overcome beam space charge and accelerate electrons towards a movable particle detector. A 300 G magnetic field will be used to confine the transverse electron motion, resulting in profile errors at the 7% level. With a system bandwidth of 17.5 MHz, the SNS IPM will be capable of measuring turn-by-turn beam profiles for a fully accumulated beam. This paper presents a description of the system and design. (C) 2014 Elsevier B.V. All rights reserved.
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