Dr. Irwin Pless

Professor

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Biography

Irwin Pless is a Professor Emeritus of Physics with significant contributions to the fields of Experimental Particle Physics, Heavy Ion Collisions Research, and Neutrino Astrophysics. He began his academic career at MIT as an Instructor in the Department of Physics in 1956 and was promoted to Assistant Professor in 1958, Associate Professor in 1961, and Professor in 1964. Pless attended the University of Chicago from 1950 to 1955, where he received a Bachelor of Science, a Master of Science in Mathematics, a Master of Science in Physics, and a PhD in Physics under the supervision of Roger H. Hildebrand. He worked extensively with bubble chambers to measure particle tracks and developed the Precision Encoding Pattern Recognition (PEPR) device, which led to a 60-fold increase in tracks processed compared to manual interpretation. Pless also contributed to the Large Volume Detector (LVD) collaboration, an underground neutrino observatory that studies neutrinos from core-collapse supernovae at the Gran Sasso laboratory in Italy. LVD is part of the international SuperNovae Early Warning System (SNEWS), which has put stringent limits on the difference in speed between neutrinos and light, measured at compatible with zero, parts per million, using a muon neutrino beam generated at CERN, Switzerland.

Research Interests