The Joint Accelerator Conferences Website (JACoW) is an international collaboration that publishes the proceedings of accelerator conferences held around the world.
TY - CONF AU - Dirksen, P.E. AU - Lenckowski, M. AU - Rawnsley, W.R. AU - Rowe, M. AU - Verzilov, V.A. ED - Liu, Zhengzheng ED - Lidia, Steven ED - McCausey, Amy ED - Schaa, Volker RW TI - A Fast Wire Scanner for the TRIUMF Electron Linac J2 - Proc. of IBIC2017, Grand Rapids, MI, USA, 20-24 August 2017 C1 - Grand Rapids, MI, USA T2 - International Beam Instrumentation Conference T3 - 6 LA - english AB - The superconducting CW linac presently being commissioned at TRIUMF will accelerate up to 10mA of electrons to the energy of 30 - 50 MeV. Thus, beam powers up to 0.5 MW are eventually expected. To support high beam power operation modes, a Fast Wire Scanner (FWS) capable of velocities up to 3 m/s over a 70mm range was developed. A stepper motor driven helical cam allows for a long stroke enabling two orthogonal wires to scan both axes in one scan. The radiation produced when the wires pass through the beam is detected by a BGO scintillator coupled to a photomultiplier (PMT), while wire position is measured with a precision linear potentiometer. A Struck SIS3302 VME transient recorder, synchronized to the beam pulses, simultaneously captures both signals to produce the beam profiles in the EPICS control system. The design of the FWS and initial beam measurements will be presented. PB - JACoW CP - Geneva, Switzerland SP - 401 EP - 403 KW - ion KW - TRIUMF KW - electron KW - linac KW - controls DA - 2018/03 PY - 2018 SN - 978-3-95450-192-2 DO - 10.18429/JACoW-IBIC2017-WEPCC19 UR - http://jacow.org/ibic2017/papers/wepcc19.pdf ER -