2019/02/14 by Naoki Tsuji, Tsuji, Naoki
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Instrumentation and Detectors (physics.ins-det) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.1902.05266
openalex publication_date 2019/02/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The CALICE Analogue Hadron CALorimeter (AHCAL) at the International Linear Collider (ILC) is a high-granularity hadron calorimeter based on scintillator tiles readout by MPPCs. Toward the construction of ILC, the optimization of the AHCAL granularity is revisited, and we are studying mixed granularity with larger scintillator tile. We first measured the performance of 60×60~mm2 tile, which is larger than the standard 30×30~mm2 tile. The light yield of 60×60~mm2 tile was measured to be about a half of that of 30×30~mm2 tile, while the uniformity of the tile response turned out to be very good. Then, a detection layer composed of 144 tiles of 60×60~mm2 was constructed. The detection layer was added to the large technological prototype of AHCAL composed of 38 detection layers with 30×30~mm2 tiles. The detection layer was successfully tested in test beam experiments at CERN SPS.