A Spiral Fiber Tracker (SFT) was developed for use in E36 experiment at Japan Proton Accelerator Research Complex (J-PARC). SFT is designed for conducting high-precision measurement of charge particles from kaon decays and consists of four layers of flat ribbons made of 1 mm diameter plastic scintillating fibers. The fibers are read out by HAMAMATSU MPPCs connected to the scintillating fibers by clear fiber extensions. The ribbons are spirally wound around the kaon stopping target at the center of the detector setup and were tested in a beam in the spring 2015.

Oleg Mineev (INR RAS, Russia)

Keito Horie (Osaka University, Japan), Youichi Igarashi (High Energy Accelerator Research Organization (KEK), Japan), Jun Imazato (High Energy Accelerator Research Organization (KEK), Japan), Hiroshi Ito (Chiba University, Japan), Hideyuki Kawai (Chiba University, Japan), Yury Kudenko (INR RAS, Russia), Suguru Shimizu (Osaka University, Japan), Makoto Tabata (Chiba University, Japan), Akihisa Toyoda (High Energy Accelerator Research Organization (KEK), Japan), Hirohito Yamazaki (Tohoku University, Japan), Nikolay Yershov (INR RAS, Russia)