A new MicroTCA-based waveform digitizer for the Muon g-2 experiment

TL;DR

This paper introduces a new MicroTCA-based waveform digitizer designed for the Muon g-2 experiment, featuring high-speed, multi-channel digitization, low noise, and precise timing, with potential applications in future experiments.

Contribution

The paper presents a novel MicroTCA-based waveform digitizer with enhanced performance and flexibility, suitable for high-precision particle physics experiments.

Findings

Intrinsic noise level of 0.51 ± 0.13 mV

Timing resolution better than 22 ps

Designed to meet pileup identification requirements

Abstract

We present the design of a new $\mu$TCA-based waveform digitizer, which will be deployed in the Muon g-2 experiment at Fermilab and will allow our pileup identification requirement to be met. This digitizer features five independent channels, each with 12-bit, 800-MSPS digitization and a 1-Gbit memory buffer. The data storage and readout along with configuration are handled by six Xilinx Kintex-7 FPGAs. In addition, the digitizer is equipped with a mezzanine card for analog signal conditioning prior to digitization, further widening its range of possible applications. The performance results of this design are also presented, highlighting its $0.51 \pm 0.13$ mV intrinsic noise level and $< 22$ ps intrinsic timing resolution between channels. We believe that its performance, together with its flexible design, could be of interest to future experiments in search of a cost-effective waveform digitizer.