The Gas Ring Cherenkov Detector for Jefferson Lab, Hall A

The Gas Ring Cherenkov Detector (GRINCH) is a new heavy gas Cherenkov threshold detector developed for the Super Bigbite (SBS) program in Hall A in Jefferson Lab. The purpose of the GRINCH is to distinguish between pions and electrons during electromagnetic form factor experiments. Consisting of 510 1-inch photomultipier tubes and filled with C₄F₈ heavy gas, this novel detector is designed to run in very high background rates. The GRINCH began commissioning with beam during the GMn experimental run in January 2022. This talk will give an overview of the GRINCH detector, analysis of its performance during the commissioning period using cluster finding methods, and its future in Hall A experiments.