Speaker
Description
The SuperFGD detector, a 3D segmented neutrino detector for accelerator neutrinos, is a significant part of the T2K (Japan) long-base experiment. The design size is 192 × 56 × 184 cm3 along the axes x-y-z respectively. The main components are 56000 channels and 2 million scintillation cubes. The scintillator composition is polystyrene doped with 1.5% of paraterphenyl (PTP) and 0.01% of POPOP. The size of each cube is 1 × 1 × 1 cm3 light collected and read in three orthogonal directions using spectroscopic fibers WLS Kuraray Co Y-11. The SuperFGD detector will be the central element of the near neutrino detector in the T2K and Hyper-Kamiokande experiments.
The primary focus of the work is the development of an algorithm to calibrate 60,000 channels for detecting scintillation signals. These signals are based on spectrum-substituting fibers and avalanche micropixel photodiodes (MPPC). The algorithm also determines the baseline position for each channel and the optimal threshold value for each Application-Specific Integrated Circuit (ASIC), which is dependent on the photoelectronic peaks for each ASIC.
