A Fast Wire Scanner for the TRIUMF Electron Linac
| Autor: | Dirksen, Paul, Lenckowski, Mark, Rawnsley, William, Rowe, Mike, Verzilov, Victor |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| DOI: | 10.18429/jacow-ibic2017-wepcc19 |
| Popis: | 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. Proceedings of the 6th Int. Beam Instrumentation Conf., IBIC2017, Grand Rapids, MI, USA |
| Databáze: | OpenAIRE |
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