# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/thomas-ypsilantis
# Generated: 2026-08-13T05:38:01.733Z

schema: https://schema.org/Person
url: "https://fame.am/person/thomas-ypsilantis"
name: "Thomas Ypsilantis"
slug: "thomas-ypsilantis"
description: "Thomas John Ypsilantis 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."
tagline: "American physicist (1928–2000)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Photocopy_of_photograph_(original_print_located_in_LBNL_Photo_Lab_Collection)._Photographer_unknown._October_6%2C_1955._BEV-938._ANTI-PROTON_SET-UP_WITH_WORK_GROUP%3B_E._SEGRE%2C_C._HAER_CAL%2C1-BERK%2C4-34.tif?width=1200"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1928-06-24"
deathDate: "2000-08-16"
livingStatus: "DECEASED"
scores:
  popularity:           38.61
  momentum:             0
  historical:           8.537653333333333
  currentAttention:     0
  sourceConfidence:     54.99999999999999
  profileCompleteness:  70
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://pt.wikipedia.org/wiki/Thomas_Ypsilantis"
    title: "Thomas Ypsilantis"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%AA%D9%88%D9%85%D8%A7%D8%B3_%D9%8A%D9%BE%D8%B3%D9%8A%D9%84%D8%A7%D9%86%D8%AA%D9%8A%D8%B3"
    title: "توماس يپسيلانتيس"
    type:  "WIKIPEDIA"
  - url: "https://azb.wikipedia.org/wiki/%D8%AA%D9%88%D9%85%D8%A7%D8%B3_%D8%B3%DB%8C%D9%84%D8%A7%D9%86%D8%AA%DB%8C%D8%B3"
    title: "توماس سیلانتیس"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/Thomas_Ypsilantis"
    title: "Thomas Ypsilantis"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Thomas_Ypsilantis"
    title: "Thomas Ypsilantis"
    type:  "WIKIPEDIA"
  - url: "https://el.wikipedia.org/wiki/%CE%A4%CE%BF%CE%BC_%CE%A5%CF%88%CE%B7%CE%BB%CE%AC%CE%BD%CF%84%CE%B7%CF%82"
    title: "Τομ Υψηλάντης"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Thomas_Ypsilantis"
    title: "Thomas Ypsilantis"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Thomas_Ypsilantis"
    title: "Thomas Ypsilantis"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D8%AA%D9%88%D9%85%D8%A7%D8%B3_%D8%B3%DB%8C%D9%84%D8%A7%D9%86%D8%AA%DB%8C%D8%B3"
    title: "توماس سیلانتیس"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Thomas_Ypsilantis"
    title: "Thomas Ypsilantis"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q2428329"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump