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TUPP036 |
Performance of an In-Air Secondary Emission Grid Profile Monitor at the ISIS Neutron and Muon Source |
target, simulation, focusing, neutron |
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- D.W. Posthuma de Boer, C. Bovo, H.V. Cavanagh, B. Jones, A.H. Kershaw, A. Pertica
STFC/RAL/ISIS, Chilton, Didcot, Oxon, United Kingdom
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The ISIS neutron and muon source, located in the UK, consists of an H− linear accelerator, a rapid cycling proton synchrotron and extraction lines to two target stations. A project is currently under way to replace the target assembly of the First Target Station (TS1) in order to secure its continued operation and improve operational flexibility. In addition to a number of other diagnostic tools, a new secondary emission (SEM) grid profile monitor is expected to be located within the helium atmosphere of the new target assembly. To investigate the performance of an out-of-vacuum SEM grid, a prototype monitor was positioned in-air between a beam exit window and a dump. Profile measurements taken with this monitor are presented, including tests at a range of bias voltages with a fast data acquisition system to investigate secondary signal sources.
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DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IBIC2019-TUPP036
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About • |
paper received ※ 04 September 2019 paper accepted ※ 07 September 2019 issue date ※ 10 November 2019 |
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