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RIS citation export for MOPGF121: Stripping Foil Displacement Unit Control for H⁻ Injection in PSB at CERN

TY - CONF
AU - Van Trappen, P.
AU - Noulibos, R.
AU - Weterings, W.J.M.
ED - Corvetti, Lou
ED - Riches, Kathleen
ED - Schaa, Volker RW
TI - Stripping Foil Displacement Unit Control for H⁻ Injection in PSB at CERN
J2 - Proc. of ICALEPCS2015, Melbourne, Australia, 17-23 October 2015
C1 - Melbourne, Australia
T2 - International Conference on Accelerator and Large Experimental Physics Control Systems
T3 - 15
LA - english
AB - For CERN's Linac4 (L4) Proton Synchrotron Booster (PSB) injection scheme, slices of the 160 MeV H⁻ beam will be distributed to the 4 superposed synchrotron rings of the PSB. The beam will then be injected horizontally into the PSB by means of an H⁻ charge-exchange injection system using a graphite stripping foil to strip the electrons from the H⁻ ions. The foil and its positioning mechanism will be housed under vacuum inside a stripping foil unit, containing a set of six foils that can be mechanically rotated into the beam aperture. The band with mounted foils is controlled by a stepping motor while a resolver, micro-switches and a membrane potentiometer provide foil position feedback. The vicinity of the ionizing beam and vacuum requirements have constrained the selection of the above mentioned control system parts. The positioning and interlocking logic is implemented in an industrial Programmable Logic Controller (PLC). This paper describes the design of the stripping foil unit electronics and controls and presents the first results obtained from a test bench unit which will be installed in the Linac4 transfer line by the end of the 2015 for foil tests with beam.
PB - JACoW
CP - Geneva, Switzerland
SP - 363
EP - 366
KW - vacuum
KW - controls
KW - radiation
KW - linac
KW - injection
DA - 2015/12
PY - 2015
SN - 978-3-95450-148-9
DO - 10.18429/JACoW-ICALEPCS2015-MOPGF121
UR - http://jacow.org/icalepcs2015/papers/mopgf121.pdf
ER -