Speakers
Description
The Super Tau-Charm Facility (STCF) is a proposed next-generation high-luminosity e+e- collider in China, operating at 2–7 GeV with a peak luminosity of about 0.5 × 10³⁵ cm⁻² s⁻¹. Its muon detector (MUD), located at the outermost layer of the spectrometer, must provide high muon detection efficiency while suppressing charged-hadron backgrounds. Since the hit position is encoded by the channel number, the readout electronics mainly need to record the arrival time of signals above a particle-identification threshold. For the prototype of the muon detector, we have therefore developed a multi-channel real-time readout system for precise timing of over-threshold signals. The hardware consists of a front-end amplification and discrimination（FEAD） board and an FPGA-based readout board. The FEAD converts detector signals into digital pulses, which are sent via USL connectors to the Field-Programmable Gate Array(FPGA). The FPGA measures the high-precision arrival time and uses a multi-phase pulse-width measurement to correct leading-edge time walk, while data are transferred to a PC (personal computer) through a Gigabit Ethernet link. Preliminary test results with a signal generator demonstrate synchronous readout of 32 channels with a time resolution better than 35 ps per channel and show an excellent linear response in pulse-width measurement. An upgraded FPGA board is under development, and further results will be presented in the meeting.
| Minioral | Yes |
|---|---|
| IEEE Member | No |
| Are you a student? | No |