TRIFIC: The TRIUMF Fast Ion Counter

A. Chester,J. Smallcombe,J. Henderson,J. Berean-Dutcher,N. Bernier,S.S. Bhattacharjee,A.B. Garnsworthy,S. Georges,S.A. Gillespie,G. Hackman,B. Olaizola,O. Paetkau,C.J. Pearson, B. Undseth,D. Yates

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment（2019）

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摘要

The TRIUMF Fast Ion Counter (TRIFIC) is a tilted-grid gas counter detector for identifying the impurities in radioactive ion beams (RIBs). Placed at zero degrees downstream of a primary reaction target at the TRIUMF ISAC-II facility, TRIFIC provides accurate Z identification of beam species on an event-by-event basis at a rate of up to 5×105 particles per second and functions as a beam composition monitor at rates up to 5×107 particles per second. With this additional level of diagnostics, RIB experiments at TRIUMF are able to reach levels of sensitivity not previously possible. Details regarding the construction and instrumentation of TRIFIC as well as results from the commissioning of the detector are presented.

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关键词

Gas detector,Ionization chamber,Radioactive ion beams,Particle identification

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