Grigori Domogatski: the Baikal neutrino telescope

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  • Опубліковано 10 лют 2025
  • Grigori Vladimirovich Domogatski, is a Russian experimental astro-particle physicist.
    Domogatski came from a family of artists. His grandfather Vladimir Domogatsky was a sculptor. Domogazki studied at Lomonosov University, graduating in 1964, and then attended the Lebedev Institute. In 1980 he completed his habilitation (Russian doctorate) on neutrino formation in stars during gravitational collapse (see supernova).
    In the 1970s he was involved with Georgi Timofeyevich Sazepin in setting up the Baksan neutrino telescope in the Caucasus. With Sazepin, he proposed in 1965 that the gravitational collapse of stars could be observed via neutrino signals. He later showed that the neutrinos released also play a role in the buildup of isotopes (Li 7, Be 8, B 11) in the collapsing star and that these processes therefore play an important role in nucleosynthesis in the cosmos.
    He is spokesman for the Lake Baikal neutrino experiment (NT-200)[1][2] and since 1980 has been head of the Laboratory for High Energy Neutrino Astrophysics at the Institute of Nuclear Research (INR) of the Russian Academy of Sciences.[3] The Baikal Telescope was based on an idea by Moissei Alexandrowitsch Markow, is a German-Russian joint project and was first installed in 1993. 3.6 km from the shore, chains of around 200 optical modules (photomultipliers for Cherenkov radiation) in the final stage of NT-200 will be installed at a depth of 1100 m on buoys and on the lake bed. Lake Baikal has the advantage that it is particularly deep, has particularly clear water and the equipment can be serviced on the frozen lake in winter. The technology for underwater neutrino telescopes was developed here in the 1980s and in the US Dumand project (first tests from 1976 on the Pacific coast, but discontinued in 1995) and later also in the Mediterranean (Nestor, ANTARES) and in the Antarctic (AMANDA and its successor IceCube in ice). It is also used to search for WIMPs and dark matter candidates using neutrino signals.
    In 2006, Domogazki received the Markow Prize for the Baikal experiment with Christian Spiering.[4] In 2014 he received the Bruno Pontecorvo Prize. He has been a corresponding member of the Russian Academy of Sciences since 2008. He heads the council in the field of neutrino physics of the Russian Academy of Sciences.
    #neutrino #baikaltelescope #markov #astronomy

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