CERN’s Linac4 cesiated surface H− source
Lettry, J., Aguglia, D., Bertolo, S., Briefi, S., Butterworth, A., Coutron, Y., Dallocchio, A., David, N., Chaudet, E., Fantz, U., Fink, D., Garlasche, M., Grudiev, A., Guida, R., Hansen, J., Haase, M., Hatayama, A., Jones, A., Kalvas, T., . . . Voulgarakis, G. (2017). CERN’s Linac4 cesiated surface H− source. In D. Faircloth (Ed.), NIBS 2016 : Fifth International Symposium on Negative Ions, Beams and Sources (Article 030002). AIP Publishing. AIP Conference Proceedings, 1869. https://doi.org/10.1063/1.4995722
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AIP Conference ProceedingsDate
2017Copyright
© 2017, AIP Publishing LLC. Published in this repository with the kind permission of the publisher.
Linac4 cesiated surface H− sources are routinely operated for the commissioning of the CERN’s Linac4 and on an ion source test stand. Stable current of 40-50 mA are achieved but the transmission through the LEBT of 80% was below expectations and triggered additional beam simulation and characterization. The H− beam profile is not Gaussian and emittance measurements are larger than simulation. The status of ongoing development work is described; 36 mA H− and 20 mA D− beams were produced with a 5.5 mm aperture cesiated surface ion source. The emittances measured at the test stand are presented. During a preliminary test, the Linac4 proton source delivered a total beam intensity of 70 mA (p, H2+, H3+).
Publisher
AIP PublishingParent publication ISBN
978-0-7354-1549-2Conference
International Symposium on Negative Ions, Beams and SourcesIs part of publication
NIBS 2016 : Fifth International Symposium on Negative Ions, Beams and SourcesISSN Search the Publication Forum
0094-243XKeywords
Publication in research information system
https://converis.jyu.fi/converis/portal/detail/Publication/27291106