Characterization results of the first full-scale readout HYLITE chip for STARLIGHT

Shanghai HIgh repetition rate XFEL aNd Extreme light facility (SHINE) is a free electron laser facility with a high pulse repetition rate of up to 1 MHz. STARLIGHT (SemiconducTor Array detectoR with Large dynamIc ranGe and cHarge inTegrating readout) is a pixel array detector with a high frame rate (>= 10 kHz) and a large dynamic range (up to 104 photons of 12.4 keV), which is being developed for SHINE. The readout ASIC utilized by STARLIGHT in the front-end module is HYLITE (High dYmamic range free electron Laser Imaging deTEctor). HYLITE200F with 200 mu m x 200 mu m pixel size and 64 x 64 pixels is the first full-scale chip of the HYLITE series. To facilitate the improvement of the detector, the performances of the single chip and a detector prototype module with 2 x 2 ASICs are carefully evaluated, especially in terms of gain, noise, and dynamic range. The test results show that the gains of the HYLITE200F chip are uniform with a single-photon resolution. Meanwhile, the chip maintains a good linearity at 104 photons of 12 keV. After bump-bonding with the sensor, the performance of HYLITE200F still fulfills the requirements.