CERN's Linac4 Cesiated surface H- Source.

Autor: 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., Koszar, I.
Předmět:
Zdroj: AIP Conference Proceedings; 2017, Vol. 1869 Issue 1, p1-8, 8p, 4 Diagrams, 1 Chart, 2 Graphs
Abstrakt: 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+). [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index