22–26 Apr 2024
Asia/Ho_Chi_Minh timezone
*** See you in Elba, Italy in May 2026 ***

Study of single-slope ADC using FPGA TDC for streaming readout data acquisition

26 Apr 2024, 11:30
20m
Oral presentation Real Time Diagnostics, Digital Twin, Control, Monitoring, Safety and Security Oral presentations, CANPS Award

Speaker

Tomonori Takahashi (Research Center for Nuclear Physics, Osaka University)

Description

The shift of data acquisition systems from traditional hardware-triggered ones to streaming readout ones will be mandatory for near-future experiments. We are developing a streaming data acquisition system and have already established it to measure hit arrival time and charge information using FPGA-based TDC and time-over-threshold (TOT). However, charge measurement with TOT has limited performance and is also subject to pulse pileup in high-rate environments. Improving the charge measurement performance is challenging because general waveform digitizer circuits are expensive. One of the low-cost solutions is a single-slope ADC (SS-ADC). SS-ADC is a waveform digitizer consisting of a comparator followed by a TDC. The aim of this paper is to investigate whether SS-ADC can achieve practical performance for nuclear and particle physics experiments. Various situations of signals, slopes, and methods to extract signal features were studied by using simulation and measurements with test boards. The SS-ADC performance found in this study will be presented.

Minioral Yes
IEEE Member No
Are you a student? No

Author

Tomonori Takahashi (Research Center for Nuclear Physics, Osaka University)

Co-authors

Shuhei Ajimura (Research Center for Nuclear Physics, Osaka University) Ryotaro Honda (KEK IPNS) Youichi Igarashi (KEK) Nobuyuki Kobayashi (Research Center for Nuclear Physics, Osaka University) Shinsuke Ota (RCNP, Osaka University) Sun Young Ryu

Presentation materials