PbWO4 (Lead tungstate) scintillator crystal production and evaluation for the electron ion collider electron endcap electromagnetic calorimeter (EEEMcal)

J. Houžvička; J. Polák; S. Sýkorová; T. Horn; V. Berdnikov; O. Philip; I. Shestakova

doi:10.1117/12.2632788

4 October 2022 PbWO4 (Lead tungstate) scintillator crystal production and evaluation for the electron ion collider electron endcap electromagnetic calorimeter (EEEMcal)

J. Houžvička, J. Polák, S. Sýkorová, T. Horn, V. Berdnikov, O. Philip, I. Shestakova

Author Affiliations +

Proceedings Volume 12241, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIV; 1224104 (2022) https://doi.org/10.1117/12.2632788
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

A defunct technology of lead tungstate (PbWO4, PWO) crystal growth was re-established and improved at Crytur. It has been discovered that key to crystal quality is pretreatment of raw material and double crystallization, although time consuming, but very effective in optimizing the final product. Several important technological advances have been made to be able to industrialize and scale up the crystal production for the needs of the large-scale physics experiments. These crystals have been evaluated at the Jefferson Accelerator facility in Newport News, VA, and found to meet the stringent requirements of the future detectors for EIC, unlike PWO crystals grown by different methods by other suppliers. Comparison of the crystal performance conducted by JLAB will be shown.

Citation Download Citation

J. Houžvička, J. Polák, S. Sýkorová, T. Horn, V. Berdnikov, O. Philip, and I. Shestakova "PbWO4 (Lead tungstate) scintillator crystal production and evaluation for the electron ion collider electron endcap electromagnetic calorimeter (EEEMcal)", Proc. SPIE 12241, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXIV, 1224104 (4 October 2022); https://doi.org/10.1117/12.2632788

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