https://doi.org/10.1051/epjconf/202532000058
Lead tungstate calorimeter of the Jefferson Lab Eta Factory experiment
Thomas Jefferson National Accelerator Facility, Newport News, Virginia, 23606, USA
* e-mail: somov@jlab.org
** For the GlueX collaboration and JEF working group
Published online: 7 March 2025
A new electromagnetic calorimeter (ECAL) consisting of 1596 lead tungstate PbWO4 scintillating crystals has been fabricated and installed in the experimental Hall D at Jefferson Lab (JLab). The highgranularity, high-resolution calorimeter is required by the JLab Eta Factory experiment, whose main physics goal is to study rare decays of eta mesons. The ECAL replaced the inner part of the forward lead glass calorimeter of the GlueX detector. Signals from the detector will be digitized using twelve-bit flash analog-to-digital converters operated at a sampling rate of 250 MHz. The ECAL is integrated into the trigger system of the GlueX detector using electronics modules designed at JLab. The ECAL is currently at the commissioning stage and should be ready for the physics run in January 2025. We will give an overview of the JEF experiment, the design and construction of the ECAL, and the integration of the detector and its infrastructure into the Hall D experimental setup.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
