POCAM in the IceCube Upgrade

• Published in: Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)
• Main Authors: Abbasi, R., Botner, Olga, Burgman, Alexander, Glaser, Christian, Hallgren, Allan, O'Sullivan, Erin, Pérez de los Heros, Carlos, Sharma, Ankur, Valtonen-Mattila, Nora, Zhang, Z.
• Format: Conference Object
• Language: English
• Published: Uppsala universitet, Högenergifysik 2022
• Subjects: Subatomic Physics; Subatomär fysik; Accelerator Physics and Instrumentation; Acceleratorfysik och instrumentering; Antarctic; South Pole; Antarc*; South pole
• Online Access: http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-518515; https://doi.org/10.22323/1.395.1049

The IceCube Neutrino Observatory at the geographic South Pole instruments a gigaton of glacial Antarctic ice with over 5000 photosensors. The detector, by now running for over a decade, will be upgraded with seven new densely instrumented strings. The project focuses on the improvement of low-energy and oscillation physics sensitivities as well as re-calibration of the existing detector. Over the last few years we developed a Precision Optical Calibration Module (POCAM) providing self-monitored, isotropic, nanosecond, light pulses for optical calibration of large-volume detectors. Over 20 next-generation POCAMs will be calibrated and deployed in the IceCube Upgrade in order to reduce existing detector systematics. We report a general overview of the POCAM instrument, its performance and calibration procedures. For complete list of authors see http://dx.doi.org/10.22323/1.395.1049