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Joined 2026-09-21 Message
Incoming links: Francis Halzen
Francis Halzen Created 2026-10-18 Updated 2026-11-05
Francis Halzen initiated IceCube, using a large volume of Antarctic ice as a medium for neutrino detection. Optical modules record Cherenkov radiation from secondary charged particles. Their arrival times and detected light allow reconstruction of a particle's direction and deposited energy. Because atmospheric particles also produce signals, identifying cosmic neutrinos requires event selection and explicit background estimates. The instrument connects high-energy particle with observations of distant astrophysical sources.[ref]
The IceCube Neutrino Observatory: Instrumentation and Online Systems by IceCube Collaboration. Sections 1–2: instrument layout, optical modules and functional detection description
A physicist who initiated IceCube and researched particle, astrophysics and cosmology.[ref]
Professional profile of Francis Halzen (physics.wisc.edu). Biography: physics faculty since 1972; IceCube principal investigator
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Portrait of Francis Halzen
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Nobel Prize in Physics in 2026 2026-10-18
Francis Halzen received the full award for decisive contributions to IceCube and the discovery of high-energy neutrinos from astrophysical sources.[ref]
https://www.kva.se/en/news/the-nobel-prize-in-physics-2026/. 6 October 2026 announcement, award decision and motivation, lines 60–65