KATANA – A charge-sensitive triggering system for the SπRIT experiment

• DOI: 10.1016/j.nima.2017.03.006
• Publication Date: 2017-03-06T22:45:32Z
• Authors: P. Lasko; M. Adamczyk; J. Brzychczyk; P. Hirnyk; J. Łukasik; P. Pawłowski; K. Pelczar; A. Snoch; A. Sochocka; Z. Sosin; J. Barney; G. Cerizza; J. Estee; T. Isobe; G. Jhang; M. Kaneko; M. Kurata-Nishimura; W.G. Lynch; T. Murakami; C. Santamaria; M.B. Tsang; Y. Zhang
• Keywords: Physics - Instrumentation and Detectors; TPC triggering; FOS: Physical sciences; Instrumentation and Detectors (physics.ins-det); plastic scintillator; 01 natural sciences; in-beam radiation damage; 0103 physical sciences; charged particle detection; number of scintillation photons.; Nuclear Experiment (nucl-ex); silicon photomultiplier; Nuclear Experiment

KATANA - the Krakow Array for Triggering with Amplitude discrimiNAtion - has been built and used as a trigger and veto detector for the S$��$RIT TPC at RIKEN. Its construction allows operating in magnetic field and providing fast response for ionizing particles, giving the approximate forward multiplicity and charge information. Depending on this information, trigger and veto signals are generated. The article presents performance of the detector and details of its construction. A simple phenomenological parametrization of the number of emitted scintillation photons in plastic scintillator is proposed. The effect of the light output deterioration in the plastic scintillator due to the in-beam irradiation is discussed.<br/>14 pages, 11 figures<br/>