DOE OSTI · 3366358
The BigBite Calorimeter for the Super Bigbite Spectrometer Program at Jefferson Lab
Abstract
Here, 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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Datta, P. [Univ. of Connecticut, Storrs, CT (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000159548204), Evans, K. T. [College of William and Mary, Williamsburg, VA (United States)] (ORCID:0000000154988008), Bane, J. [Univ. of Massachusetts, Amherst, MA (United States)], Bhatt, H. [Mississippi State Univ., Mississippi State, MS (United States)] (ORCID:0000000300875387), Devkota, B. [Mississippi State Univ., Mississippi State, MS (United States)] (ORCID:0000000228595961), Fuchey, E. [Univ. of Connecticut, Storrs, CT (United States); College of William and Mary, Williamsburg, VA (United States)], Hague, T. J. [Kent State Univ., Kent, OH (United States)] (ORCID:0000000312884045), Higinbotham, D. W. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000327586526), Hoebel, A. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)], Jones, M. K. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000270896311), Karki, A. [Mississippi State Univ., Mississippi State, MS (United States)], Kubantsev, M. [A.I. Alikhanov Institute of Theoretical and Experimental Physics (ITEP), Moscow (Russian Federation); Northwestern Univ., Evanston, IL (United States)], Li, S. [Durham Univ. (United Kingdom)] (ORCID:0000000312525392), Nycz, M. [Univ. of Virginia, Charlottesville, VA (United States)], Pomatsalyuk, R. [Kharkov Institute of Physics and Technology (Ukraine)] (ORCID:0000000262997446), Puckett, A. J. R. [Univ. of Connecticut, Storrs, CT (United States)] (ORCID:0000000236397463), Rachek, I. [Russian Academy of Sciences (RAS), Novosibirsk (Russian Federation). Budker Institute of Nuclear Physics (BINP)] (ORCID:0000000178197534), Riordan, S. [Argonne National Laboratory (ANL), Argonne, IL (United States)], Sawatzky, B. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000256370348), Seeds, S. A. [Univ. of Connecticut, Storrs, CT (United States)], Shahinyan, A. [Yerevan Physics Institute (YerPhI) (Armenia)], Shestakov, Y. [Russian Academy of Sciences (RAS), Novosibirsk (Russian Federation). Budker Institute of Nuclear Physics (BINP)], Tadepalli, A. S. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000253128943), Voskanyan, H. [Yerevan Physics Institute (YerPhI) (Armenia)], Wojtsekhowski, B. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)] (ORCID:0000000221609814), Yoon, A. [Christopher Newport Univ., Newport News, VA (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)]. 2026-05-15. The BigBite Calorimeter for the Super Bigbite Spectrometer Program at Jefferson Lab. https://doi.org/10.1016/j.nima.2026.171669
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