Recent DHCAL Developments

TL;DR

This paper discusses recent advancements in the development of a Digital Hadron Calorimeter using Resistive Plate Chambers, focusing on technical improvements following successful prototype testing at Fermilab and CERN.

Contribution

It reports on new developments in RPC chamber design, rate capabilities, high voltage systems, and gas recirculation for the DHCAL.

Findings

Improved RPC chamber design and performance.

Enhanced rate capabilities of the RPCs.

Implementation of gas recirculation system.

Abstract

This talk reports on recent progress concerning the development of a Digital Hadron Calorimeter with Resistive Plate Chambers as active elements. After the successful testing of a Digital Hadron Calorimeter prototype, the DHCAL, in the Fermilab and CERN test beams, the DHCAL group is now tackling some of the remaining technical issues which were not addressed specifically with the prototype. The talk reports on developments related to the RPC chamber design, to improvements in the RPC rate capabilities, the high voltage distribution system, and a gas recirculation system.