Thomas Ypsilantis

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Thomas Ypsilantis
Thomas Ypsilantis.jpg
BornJune 24, 1928
DiedAugust 16, 2000(2000-08-16) (aged 72)
Nationality United States
Alma mater University of Utah
University of California, Berkeley
Known forCo-discovery of the antiproton
Developing the RICH detector
Scientific career
Fields Particle physics
Institutions CERN
Thesis Experiments on polarization in nucleon-nucleon scattering at 310 MeV  (1955)
Doctoral advisor Emilio Segrè
Influenced Henry Stapp [1]

Thomas John Ypsilantis (Greek : Θωμάς Υψηλάντης; June 24, 1928 August 16, 2000) was an American physicist of Greek descent. Ypsilantis was known for the co-discovery of the antiproton in 1955, along with Owen Chamberlain, Emilio Segrè, and Clyde Wiegand. Following this work, he moved to CERN to develop Cherenkov radiation detectors for use in particle physics.

Greek language language spoken in Greece, Cyprus and Southern Albania

Greek is an independent branch of the Indo-European family of languages, native to Greece, Cyprus and other parts of the Eastern Mediterranean and the Black Sea. It has the longest documented history of any living Indo-European language, spanning more than 3000 years of written records. Its writing system has been the Greek alphabet for the major part of its history; other systems, such as Linear B and the Cypriot syllabary, were used previously. The alphabet arose from the Phoenician script and was in turn the basis of the Latin, Cyrillic, Armenian, Coptic, Gothic, and many other writing systems.

United States federal republic in North America

The United States of America (USA), commonly known as the United States or America, is a country composed of 50 states, a federal district, five major self-governing territories, and various possessions. At 3.8 million square miles, the United States is the world's third or fourth largest country by total area and is slightly smaller than the entire continent of Europe's 3.9 million square miles. With a population of over 327 million people, the U.S. is the third most populous country. The capital is Washington, D.C., and the largest city by population is New York City. Forty-eight states and the capital's federal district are contiguous in North America between Canada and Mexico. The State of Alaska is in the northwest corner of North America, bordered by Canada to the east and across the Bering Strait from Russia to the west. The State of Hawaii is an archipelago in the mid-Pacific Ocean. The U.S. territories are scattered about the Pacific Ocean and the Caribbean Sea, stretching across nine official time zones. The extremely diverse geography, climate, and wildlife of the United States make it one of the world's 17 megadiverse countries.

Physicist scientist who does research in physics

A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate causes of phenomena, and usually frame their understanding in mathematical terms. Physicists work across a wide range of research fields, spanning all length scales: from sub-atomic and particle physics, through biological physics, to cosmological length scales encompassing the universe as a whole. The field generally includes two types of physicists: experimental physicists who specialize in the observation of physical phenomena and the analysis of experiments, and theoretical physicists who specialize in mathematical modeling of physical systems to rationalize, explain and predict natural phenomena. Physicists can apply their knowledge towards solving practical problems or to developing new technologies.



Tom Ypsilantis was born in Salt Lake City in 1928. His father was killed by lightning in 1931. He graduated from South High School in 1945, and attended the University of Utah graduating with a degree in chemistry in 1949. [2] He then attended the University of California, Berkeley where he joined the four person team at the Berkeley Bevatron that observed the first antiproton; this became the subject of his PhD thesis and the two senior members of this team won the Nobel Prize in Physics in 1959. Ypsilantis was Associate Professor of Physics at the University of California, Berkeley, and was instrumental in the founding of the Demokritos Research Center in Athens, Greece. In 1969, he went to Geneva to work at CERN (Centre European Research Nucleaire), where he met Jacques Séguinot. In 1977, Ypsilantis and Séguinot proposed the technique later called the Ring Imaging Cherenkov (RICH) counter. Together with Tord Ekelöf, they introduced this technique for high-energy physics: the first large-scale application was for the DELPHI experiment at LEP. They later worked in the framework of the LAAS Project on noble-liquid calorimetry and on a very large water neutrino detector based on the fast-RICH technique. Ypsilantis also made major contributions to the LHCb experiment at CERN. [3] He served as the Senior Research Director in Geneva, Project Director in Bologna, Italy, and Consultant to the French Nuclear Agency in Sauclay, France. [4]

South High School (Salt Lake City) high school in Salt Lake City, Utah

South High School was a high school in Salt Lake City, Utah, which operated from 1931 to 1988. The school was located on the southern end of Salt Lake City proper, at 1575 S. State Street. The school is now a campus of Salt Lake Community College.

University of Utah public coeducational space-grant research university in Salt Lake City, Utah

The University of Utah is a public research university in Salt Lake City, Utah, United States. As the state's flagship university, the university offers more than 100 undergraduate majors and more than 92 graduate degree programs. The university is classified among "R-1: Doctoral Universities – Highest Research Activity" with "selective" admissions. Graduate studies include the S.J. Quinney College of Law and the School of Medicine, Utah's first medical school. As of Fall 2015, there are 23,909 undergraduate students and 7,764 graduate students, for an enrollment total of 31,673.

University of California, Berkeley Public university in California, USA

The University of California, Berkeley is a public research university in the United States. Located in the city of Berkeley, it was founded in 1868 and serves as the flagship institution of the ten research universities affiliated with the University of California system. Berkeley has since grown to instruct over 40,000 students in approximately 350 undergraduate and graduate degree programs covering numerous disciplines.

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  1. Schwartz, Jeffrey M.; Begley, Sharon (2009). The Mind and the Brain. Springer Science & Business. p. 343.
  2. Steiner, Herbert (April 2003). "Thomas Ypsilantis—The early years" (Submitted manuscript). Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 502 (1): 1–8. Bibcode:2003NIMPA.502....1S. doi:10.1016/S0168-9002(02)02148-4.
  3. Weisstein, Eric; Kambouroglou, George. "Ypsilantis, Tom (1928-2000) -- from Eric Weisstein's World of Scientific Biography". World of Biography. Wolfram Research. Retrieved 20 March 2017.
  4. "Obituary: Dr. Thomas J. Ypsilantis". Deseret News. 23 August 2000. Retrieved 20 March 2017.