Development and validation of a 64 channel front end ASIC for 3D directional detection for MIMAC

TL;DR

This paper presents the design and validation of a 64-channel front-end ASIC for 3D directional detection of low-energy particles, enabling precise dark matter detection through a specialized micro-pattern gaseous detector.

Contribution

It introduces a novel 64-channel ASIC tailored for the MIMAC project, capable of high-speed data transfer and integration with a 3D particle tracking system.

Findings

ASIC successfully monitored 64 pixel strips with 50 MHz sampling

Eight ASICs validated on a 2x256 pixel prototype

Achieved high-speed data transfer at 400 MHz

Abstract

A front end ASIC has been designed to equip the {\mu}TPC prototype developed for the MIMAC project, which requires 3D reconstruction of low energy particle tracks in order to perform directional detection of galactic Dark Matter. Each ASIC is able to monitor 64 strips of pixels and provides the "Time Over Threshold" information for each of those. These 64 digital informations, sampled at a rate of 50 MHz, can be transferred at 400MHz by eight LVDS serial links. Eight ASIC were validated on a 2x256 strips of pixels prototype.