The BigBite Calorimeter for the Super Bigbite Spectrometer Program at Jefferson Lab
Provakar Datta, Katherine Evans, Jason Bane, Hem Bhatt, Bhesha Devkota, Eric Fuchey, Tyler Hague, Douglas Higinbotham, Amanda Hoebel, Mark Jones, Abishek Karki, Mikhail Kubantsev, Shujie Li, Michael Nycz, Roman Pomatsalyuk, Andrew Puckett, Igor Rachek, Seamus Riordan
TL;DR
The BigBite Calorimeter (BBCal) was developed as a lead-glass electromagnetic calorimeter for the Super Bigbite Spectrometer at Jefferson Lab, providing precise electron detection and trigger capabilities for high-energy physics experiments.
Contribution
This paper details the design, construction, and performance of the BBCal, a novel calorimeter integral to the BBS for neutron form factor measurements at Jefferson Lab.
Findings
Achieved an energy resolution of approximately 6.2%.
Provided a position resolution of 1.2 cm.
Enabled effective electron triggering in the 1-4 GeV range.
Abstract
We report features of the design, construction, installation, and performance of the BigBite Calorimeter (BBCal), a lead-glass electromagnetic calorimeter constructed as part of the BigBite Spectrometer (BBS), which served as the electron arm for the Super Bigbite Spectrometer (SBS) program of high-precision neutron electromagnetic form factor measurements in Hall A at Jefferson Lab. As a total-absorption calorimeter, BBCal provided the primary electron trigger for BBS, detecting (quasi-) elastically scattered electrons in the 1-4 GeV energy range with an energy resolution of approximately 6.2%, position resolution of 1.2 cm, and timing resolution of 0.5 ns.
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Taxonomy
TopicsNeutrino Physics Research · Radiation Therapy and Dosimetry · Particle Detector Development and Performance