25 results on '"A.G. Chensky"'
Search Results
2. Shallow-rooted mud volcanism in Lake Baikal
- Author
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Jeffrey Poort, M. De Batist, S.S. Vorobeva, O. Khlystov, A.G. Chensky, Lieven Naudts, A.V. Khabuev, Hirotsugu Minami, Adriano Mazzini, Akihiro Hachikubo, A. V. Kazakov, and Grigorii Akhmanov
- Subjects
geography ,geography.geographical_feature_category ,010504 meteorology & atmospheric sciences ,Stratigraphy ,Clathrate hydrate ,Geochemistry ,Geology ,Sedimentary basin ,010502 geochemistry & geophysics ,Oceanography ,01 natural sciences ,Geophysics ,Volcano ,Clastic rock ,parasitic diseases ,Breccia ,Economic Geology ,Sedimentary rock ,Lithification ,0105 earth and related environmental sciences ,Mud volcano - Abstract
Lake Baikal is the only freshwater basin containing sediments with gas hydrate accumulations, some of which are associated with mud volcano activity. Twenty-two mud volcanoes have already been identified in different areas of Lake Baikal, but the formation process and source depth remained unknown due to a lack of conclusive evidences. Here we discuss a set of geological and geophysical data to report the discovery of the hydrate-bearing Akadem mud volcanic complex (AMVC) on the Academician Ridge in central Lake Baikal. The obtained results allowed for the first time to concretely estimate the source depth of the mobilized fluids and sediments. Analysis of diatom skeletons present in the mud breccia revealed that the oldest diatom specimen is Cyclotella Iris et var. This species is characteristic for a short age interval ranging between 4.8 and 5.6 Ma. The same diatom was also detected between 230 and 310 m below the lake floor (mblf) in the borehole BDP-98 drilled near the AMVC. Combining biostratigraphic correlation and seismostratigraphy, it is estimated that the same interval is located at 200–300 mblf below the mud volcanic field. The elevated heat flow measured at AMVC indicates that the original base of gas hydrate stability (regionally located at ∼212 mblf) is currently shifted upwards of ∼100 m. The acquired data are consistent with a scenario envisaging the rise of warm fluids throughout the mud volcano complex zone. We suggest that migration of deep fluids could have initiated the gas hydrate dissociation and, in turn, rapidly generated overpressured shallow mud chambers. The ultimate piercing and triggering of the mud volcanoes activity resulted in the eruption of mud breccia and formation of densely packed crater sites in the study area. The depicted scenario can be applied to many mud volcanoes in Lake Baikal where similar anomalous heat flow conditions have been measured. These findings also emphasize that the genetic association between gas hydrate dissociation and the initiation of eruptive activity explains numerous peculiarities of the “Baikal” sedimentary volcanism (e.g. lack of lithified rocks among mud breccia clasts, gas hydrates, moderately elevated heat flow). This type of mud volcanism differentiates from the typically deeply rooted piercements observed worldwide in mature (marine) sedimentary basins. Ultimately our findings open a new prospective for mud volcano research worldwide, emphasizing that gas hydrates are not just one of the common features for sedimentary volcanism, but may have an active role as a triggering mechanism for the process itself.
- Published
- 2019
3. Speech Recognition in Mongolian Language using a Neural Network with pre-processing Technique
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A.G. Chensky, Tuvdendorj Galbaatar, Zandan Batzorig, and Odsuren Bukhtsooj
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Background noise ,Artificial neural network ,Microphone ,Computer science ,Speech recognition ,Interface (computing) ,Feature extraction ,Personal computer ,Cluster analysis - Abstract
In this paper, we developed a neural network model, which is capable of recognizing a limited number of words in Mongolian language. We have chosen four words in Mongolian language. These words were chosen for further designing and creating a special device with an audio interface. In this experiment, we used audio recordings recorded in a computer using a microphone in a normal audience with minimal background noise. The database of audio recordings used to train the neural network consists of speeches of 11 people (7 men and 4 women). One of them is around 20–30 years old, three people are 60–70 and the rest are 30–40. The work uses a regular personal computer with an Intel Core i5 processor - the 3rd generation and with 8GB DDR IV RAM.
- Published
- 2020
4. Hydrogen and oxygen isotopic anomalies in pore waters suggesting clay mineral dehydration at gas hydrate-bearing Kedr mud volcano, southern Lake Baikal, Russia
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Ryo Kasashima, Hitoshi Shoji, Lieven Naudts, Satoshi Yamashita, A.G. Chensky, Masaaki Konishi, Andrey Kazakov, T. V. Pogodaeva, Hirotoshi Sakagami, Akihiro Hachikubo, A. V. Khabuev, O. Khlystov, N. A. Gubin, Marc De Batist, Hirotsugu Minami, Alexey Krylov, and Nobuo Takahashi
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010504 meteorology & atmospheric sciences ,Lithology ,Clathrate hydrate ,Geochemistry ,Sediment ,Environmental Science (miscellaneous) ,010502 geochemistry & geophysics ,Geotechnical Engineering and Engineering Geology ,Oceanography ,01 natural sciences ,Pore water pressure ,Breccia ,Earth and Planetary Sciences (miscellaneous) ,Bathymetry ,Clay minerals ,Geology ,0105 earth and related environmental sciences ,Mud volcano - Abstract
A multibeam echosounder survey was conducted (deeper than ca. 300 m water depth, total area: ca. 1.8 × 103 km2) in the southern basin of Lake Baikal, Russia, in June 2015, 2016, and 2017. Characteristic morphology of the lake floor was mapped on the ancient Tankhoy stratum, covered with present sediment, by high-resolution bathymetry. Sediment core sampling operations were conducted in August 2015 and August 2016 at a characteristic mound-like landform named Kedr (after the Kedrovaya River). Sub-surface gas hydrates (GH), containing not only microbial but also thermogenic gases (Hachikubo et al. 2016), were retrieved. Core lithology and sub-bottom profiler survey suggest that Kedr is a mud volcano (MV). Hydrogen and oxygen isotopic anomalies were observed in the sediment pore waters. This suggests the water results from clay mineral dehydration, which is the first observation of this process in Lake Baikal sediment pore water. The thermogenic gases, mud breccia, and water from clay mineral dehydration suggest potential ascending gas as well as water from greater depths, presumably from the ancient Tankhoy stratum under the Kedr MV.
- Published
- 2018
5. The structure of the mud volcano Novosibirsk based on the results of geological and geophysical studies
- Author
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N. A. Gubin, A.V. Khabuev, Grigorii Akhmanov, O. Khlystov, A.G. Chensky, and M. Solovyeva
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Geochemistry ,Geology ,Mud volcano - Published
- 2020
6. Influence of Solar Flares on VLF Radio Waves Propagation Over JJI - Irkutsk Path
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A.G. Chensky, A.S Poletaev, and O.V. Yadrennikova
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Physics ,Solar flare ,Amplitude response ,Astrophysics::High Energy Astrophysical Phenomena ,Geophysics ,Signal ,Physics::Geophysics ,Intensity (physics) ,Depth sounding ,Amplitude ,Physics::Space Physics ,Astrophysics::Solar and Stellar Astrophysics ,Ionosphere ,Radio wave - Abstract
The article discusses the impact of solar flares on the amplitude of VLF radio waves propagating along the JJI - Irkutsk path. It is shown how the amplitude of the 22.2 kHz signal responds on perturbations in mid-latitude ionosphere during solar flares in 2017. Continuous measuring of parameters of the sounding signal was performed using the designed in the Irkutsk National Research Technical University VLF receiver. Analysis of the results showed linear dependence of the amplitude response and variations of X-ray intensity.
- Published
- 2018
7. The BAIKAL neutrino project: status, results and perspectives
- Author
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Zh.-A.M. Dzhilkibaev, V. V. Prosin, A.G. Chensky, E. A. Osipova, Dmitry Chernov, V. M. Aynutdinov, A.P. Koshechkin, B.A. Tarashansky, P. G. Pokhil, R. R. Mirgazov, A. N. Dyachok, K. Kazakov, E. Vyatchin, S.V. Fialkovsky, I. I. Yashin, Ch. Spiering, N. M. Budnev, T. I. Gress, V. A. Zhukov, M.B. Milenin, B. A. M. Shaibonov, I. A. Danilchenko, V. Rubtzov, E.N. Pliskovsky, A. M. Klabukov, A. I. Klimov, BayarJon Paul Lubsandorzhiev, L. V. Pankov, O. A. Gress, G.V. Domogatsky, A. A. Pavlov, A. I. Panfilov, V.F. Kulepov, V. Polecshuk, Ole Streicher, G. Pan'kov, L. A. Kuzmichev, S. Mikheyev, R. Vasiliev, Yu. V. Parfenov, K.V. Konischev, Yu. A. Semeney, L. B. Bezrukov, V.A. Balkanov, S. I. Klimushin, M. I. Rosanov, R. Wischnewski, I. A. Belolaptikov, Vy. Kuznetzov, O. N. Gaponenko, and E.G. Popova
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Physics ,Nuclear physics ,Nuclear and High Energy Physics ,Particle physics ,Upgrade ,Scale (ratio) ,Detector ,Neutrino ,Atomic and Molecular Physics, and Optics - Abstract
We review the present status of the Baikal Neutrino Project and present selected results obtained from data taken in 1998 - 2000 (780 live days). We describe the moderate upgrade of NT-200 planned for the next years and discuss a possible detector on the Gigaton scale.
- Published
- 2005
8. The Baikal Neutrino Experiment: Status and beyond
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A. I. Panfilov, V.F. Kulepov, A. I. Klimov, I. A. Danilchenko, M. I. Rosanov, R. Wischnewski, V. Polecshuk, A.P. Koshechkin, A.G. Chensky, V. M. Aynutdinov, Dmitry Chernov, T. I. Gress, B.A. Tarashansky, V. Yu. Rubtzov, L. V. Pankov, O. N. Gaponenko, M.B. Milenin, E. Vyatchin, R. R. Mirgazov, B. A. M. Shaibonov, A. A. Pavlov, S. I. Klimushin, Bayarto Lubsandorzhiev, E.N. Pliskovsky, G.V. Domogatsky, L. A. Kuzmichev, Zh.-A.M. Dzhilkibaev, G. Pan'kov, A. M. Klabukov, S. Mikheyev, V. V. Prosin, A. N. Dyachok, V. A. Zhukov, E. A. Osipova, K.V. Konischev, Ole Streicher, Ch. Spiering, N. I. Moiseiko, I. V. Yashin, I. A. Belolaptikov, V. A. Balkanov, Yu. A. Semeney, E.G. Popova, P. G. Pokhil, R. Vasiliev, Vy. Kuznetzov, O. A. Gress, L. B. Bezrukov, Yu. V. Parfenov, and N. M. Budnev
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Physics ,Nuclear and High Energy Physics ,Particle physics ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Solar neutrino ,High Energy Physics::Phenomenology ,Solar neutrino problem ,Atomic and Molecular Physics, and Optics ,Massless particle ,Nuclear physics ,Neutrino detector ,Measurements of neutrino speed ,High Energy Physics::Experiment ,Neutrino ,Neutrino oscillation ,Lepton - Abstract
The present status of the Baikal Neutrino Experiment and the present results of a search for upward going atmospheric neutrinos, WIMPs, and magnetic monopoles obtained with the NT-200 detector are reviewed. The results of a search for very high-energy neutrinos are presented as well. An upper limit on the νe+νe+ντ neutrino diffuse flux of E2Φ(E)
- Published
- 2004
9. An upper limit on the diffuse flux of high energy neutrinos obtained with the Baikal detector NT-96
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V.F. Kulepov, R. R. Mirgazov, I. A. Danilchenko, M.B. Milenin, E. A. Osipova, E.N. Pliskovsky, Yu. V. Parfenov, A. M. Klabukov, G. Tothi, D. Kiss, N. M. Budnev, A. A. Doroshenko, I. A. Sokalski, B.A. Tarashansky, A. A. Pavlov, A. I. Panfilov, Zh.-A.M. Dzhilkibaev, M.I. Rozanov, G.V. Domogatsky, V.A. Balkanov, N. I. Moseiko, S. I. Klimushin, Ch. Spiering, A.P. Koshechkin, R.V. Vasiljev, Ole Streicher, S.V. Lovzov, B. K. Lubsandorzhiev, P. G. Pokhil, V.A. Netikov, I. V. Yashin, J. Ljaudenskaite, T. Thon, E.G. Popova, V.Yu. Rubzov, A. I. Klimov, S.V. Fialkovsky, L. A. Kuzmichev, I. A. Belolaptikov, Vy. Kuznetzov, L. B. Bezrukov, O. N. Gaponenko, A.G. Chensky, and R. Wischnewski
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Physics ,High energy ,Particle physics ,Range (particle radiation) ,Physics::Instrumentation and Detectors ,Cherenkov detector ,Astrophysics::High Energy Astrophysical Phenomena ,Solar neutrino ,Detector ,Astronomy and Astrophysics ,law.invention ,law ,Diffuse flux ,High Energy Physics::Experiment ,Limit (mathematics) ,Neutrino - Abstract
We present the results of a search for high-energy neutrinos with the Baikal underwater Cherenkov detector NT-96. An upper limit on the diffuse flux of ν e + ν μ + ν μ of E 2 Φ ν (E) −5 cm −2 s −1 sr −1 GeV within neutrino energy range 10 4 –10 7 GeV is obtained, assuming an E −2 behavior of the neutrino spectrum.
- Published
- 2000
10. Registration of atmospheric neutrinos with the BAIKAL Neutrino Telescope NT-96
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V.A. Balkanov, I.A. Belolaptikov, L.B. Bezrukov, N.M. Budnev, A.G. Chensky, I.A. Danilchenko, Zh.-A.M. Djilkibaev, G.V. Domogatsky, A.A. Doroshenko, S.V. Fialkovsky, O.N. Gaponenko, A.A. Garus, T.I. Gress, A.M. Klabukov, A.I. Klimov, S.I. Klimushin, A.P. Koshechkin, V.F. Kulepov, L.A. Kuzmichev, V.E. Kuznetzov, J.J. Laudinskaite, S.V. Lovtzov, B.K. Lubsandorzhiev, M.B. Milenin, R.R. Mirgazov, N.I. Moseiko, V.A. Netikov, E.A. Osipova, A.I. Panfilov, Yu.V. Parfenov, A.A. Pavlov, E.N. Pliskovsky, P.G. Pokhil, E.G. Popova, M.I. Rozanov, V.Yu. Rubtzov, I.A. Sokalski, Ch. Spiering, O. Streicher, B.A. Tarashansky, T. Thon, R.V. Vasiljev, R. Wischnewski, and I.V. Yashin
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Physics ,Muon ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Monte Carlo method ,Neutrino telescope ,Flux ,Astronomy and Astrophysics ,Astrophysics ,law.invention ,Telescope ,law ,High Energy Physics::Experiment ,Underwater ,Neutrino ,Zenith - Abstract
We present first neutrino induced events observed with a deep underwater neutrino telescope. Data from 70 days effective life time of the BAIKAL prototype telescope NT-96 have been analyzed with two different methods. With the standard track reconstruction method, 9 clear upward muon candidates have been identified, in good agreement with 8.7 events expected from Monte Carlo calculations for atmospheric neutrinos. The second analysis is tailored to muons coming from close to the opposite zenith. It yields 4 events, compared to 3.5 from Monte Carlo expectations. From this we derive a 90 % upper flux limit of 1.1 * 10^-13 cm^-2 sec^-1 for muons in excess of those expected from atmospheric neutrinos with zenith angle > 150 degrees and energy > 10GeV.
- Published
- 1999
11. Status of the AMANDA and BAIKAL neutrino telescopes
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P. Askebjer, S.W. Barwick, R. Bay, L. Bergström, A. Bouchta, S. Carius, E. Dahlberg, K. Engel, B. Erlandsson, A. Goobar, L. Gray, A. Hallgren, F. Halzen, H. Heukenkamp, P.O. Hulth, S. Hundertmark, J. Jacobsen, S. Johansson, V. Kandhadai, A. Karle, I. Liubarsky, D. Lowder, T. Mikolajski, T.C. Miller, P. Mock, R. Morse, D. Nygren, R. Porrata, P.B. Price, A. Richards, H. Rubinstein, E. Schneider, C. Spiering, O. Streicher, Q. Sun, T. Thon, S. Tilav, C. Walck, C. Wiebusch, R. Wischnewski, G. Yodh, I.A. Belolaptikov, L.B. Bezrukov, B.A. Borisovets, N.M. Budnev, A.G. Chensky, I.A. Danilchenko, Zh.-A.M. Djilkibaev, V.I. Dobrynin, G.V. Domogatsky, A.A. Doroshenko, S.V. Fialkovsky, O.N. Gaponenko, A.A. Garus, T.A. Gress, S.B. Ignat'ev, A.M. Klabukov, A.I. Klimov, S.I. Klimushin, A.P. Koshechkin, V.F. Kulepov, L.A. Kuzmichev, B.K. Lubsandorzhiev, M.B. Milenin, R.R. Mirgazov, A.V. Moroz, N.I. Moseiko, S.A. Nikiforov, E.A. Osipova, D. Pandel, A.I. Panfilov, Yu.V. Parfenov, A.A. Pavlov, D.P. Petukhov, K.A. Pocheikin, P.G. Pokhil, P.A. Pokolev, M.I. Rosanov, V.Yu. Rubzov, S.I. Sinegovsky, I.A. Sokalski, Ch. Spiering, and B.A. Tarashansky
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Astroparticle physics ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Neutrino ,Atomic and Molecular Physics, and Optics - Published
- 1997
12. Results from the Baikal underwater telescope
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V.F. Kulepov, M. I. Rosanov, R. Wischnewski, T. Mikolajski, L.A. Donskych, P. Mohrmann, A. I. Panfilov, H. Heukenkamp, A. A. Doroshenko, I. A. Sokalski, A. A. Pavlov, L. A. Kuzmichov, T. Thon, Bayarto Lubsandorzhiev, A. M. Klabukov, I. I. Trofimenko, P. G. Pochil, G.V. Domogatsky, O. A. Gress, A. A. Garus, E. A. Osipova, A. I. Klimov, K. A. Pocheikin, V.A. Tarashansky, J. Krabi, M.B. Milenin, Yu. V. Parfenov, S. A. Nikiforov, A.P. Koshechkin, N. M. Budnev, Ch. Spiering, O.N. Gaponenko, O.P. Pokalev, Zh. A. M. Djilkibaev, A.G. Chensky, Ole Streicher, R. R. Mirgazov, B. A. Borisovets, S. I. Klimushin, S. I. Sinegovsky, D.P. Petuchov, S.V. Fialkovsky, T. I. Gress, V. I. Dobrynin, L. B. Bezrukov, N.I. Maseiko, V.Yu. Rubzov, I. A. Belolaptikov, and I. A. Danilshenko
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Physics ,Nuclear and High Energy Physics ,Photomultiplier ,Muon ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Monte Carlo method ,Detector ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Atomic and Molecular Physics, and Optics ,law.invention ,Telescope ,law ,Underwater ,Intensity (heat transfer) ,Cherenkov radiation - Abstract
Since one and a half year, the underwater Cherenkov telescope NT-36 consisting of 36 photomultipliers attached to 3 strings is operated in lake Baikal. The large statistics of collected data allows for comparison with Monte Carlo predictions starting from the level of detector response up to more sophisticated dependences like the angular distribution of muon intensity.
- Published
- 1995
13. The lake Baikal underwater telescope NT-36: First months of operation
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S. I. Sinegovski, E. A. Osipova, Yu. V. Parfenov, J. Krabi, N. M. Budnev, O. A. Gress, V. I. Dobrynin, L. B. Bezrukov, T. Mikolajski, H. Heukenkamp, A.V. Golikov, M. I. Rosanov, I. A. Belolaptikov, R. Wischnewski, O.P. Pokalev, M.B. Milenin, L.A. Donskych, A. A. Doroshenko, A. I. Panfilov, A. M. Klabukov, A. A. Pavlov, A.V. Rzhetshizki, I. A. Sokalski, T.A. Konopleva, Ole Streicher, V.B. Kabikov, Zh. A. M. Djilkibaev, Valery Zurbanov, B. A. Borisovets, S. I. Klimushin, V.F. Kulepov, V.Yu. Rubzov, N.V. Ogievietzky, R. R. Mirgazov, A. I. Klimov, P. G. Pochil, S.V. Fialkovsky, V.A. Tarashansky, O.J. Lanin, D.P. Petuchov, Bayarto Lubsandorzhiev, K. A. Pocheikin, G.V. Domogatsky, T. Thon, I. I. Trofimenko, A.P. Koshechkin, A.H. Padusenko, L. A. Kuzmichov, R. Heller, S. A. Nikiforov, A.G. Chensky, and Ch. Spiering
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Telescope ,Nuclear and High Energy Physics ,Angular distribution ,Oceanography ,law ,Russian federation ,Cosmic muons ,Underwater ,Atomic and Molecular Physics, and Optics ,Cherenkov radiation ,Geology ,Seismology ,law.invention - Abstract
Since April 13th 1993, an underwater Cherenkov telescope consisting of 36 photomultipliers arranged along 3 strings is in operation at lake Baikal. We describe the array and present preliminary results of the first five months of operation.
- Published
- 1994
14. Physics capabilities of the second-stage Baikal detector NT-200
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S.V. Fialkovsky, A.I. Nikiforòv, S.D. Alatin, V.A. Tarashansky, A. I. Panfilov, E. A. Osipova, M.N. Gushtan, V.B. Kabikov, D. Kiss, A. A. Doroshenko, V. I. Dobrynin, L. B. Bezrukov, J. Krabi, B. K. Lubsandorzhiev, V.A. Poleschuk, Ch. Spiering, P.P. Sherstyankin, Yu. V. Parfenov, A. M. Klabukov, T. Thon, Valery Zurbanov, L.A. Donskich, A.M. Ovcharov, O.J. Lanin, A.V. Golikov, I. I. Trofimenko, M. I. Rosanov, R. Wischnewski, L. A. Kuzmichov, A.P. Koschechkin, N.V. Ogievietzky, I. A. Belolaptikov, N. M. Budnev, I.A. Sokalsky, G. N. Dudkin, A.L. Lopin, T. Mikolajski, H. Heukenkamp, Edgar Bugaev, A. A. Lukanin, V. A. Primin, J.B. Lanin, B. A. Borisovets, L. Jenck, A.H. Padusenko, E.S. Zaslavskaya, A.A. Sumanov, G.V. Domogatsky, V. M. Padalko, V.Yu. Egorov, V.A. Naumov, O.P. Pokalev, A. A. Pavlov, A.G. Chensky, M. D. Gal'Perin, G.A. Litunenko, M.I. Nemchenko, M.B. Milenin, Yu.S. Kusner, L. Tanko, O. A. Gress, V.F. Kulepov, Zh. A. M. Djilkibaev, A.A. Levin, and S. I. Klimushin
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Physics ,Nuclear and High Energy Physics ,Field (physics) ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Detector ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Cosmic ray ,Atomic and Molecular Physics, and Optics ,Particle detector ,Neutrino detector ,Measuring instrument ,High Energy Physics::Experiment ,Underwater ,Neutrino - Abstract
We describe the lake Baikal deep underwater detector “NT-200” and discuss its physics capabilities to investigate problems in the field of neutrino astrophysics, cosmic ray physics and particle physics.
- Published
- 1992
15. The lake Baikal deep underwater detector
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D. Kiss, A. A. Doroshenko, A.A. Shestakov, I.A. Sokalsky, A. I. Panfilov, Yu.S. Kusner, P.P. Sherstyankin, V. A. Primin, A.P. Koshechkin, Edgar Bugaev, L. Tanko, O. A. Gress, L. A. Kuzmichov, A. A. Pavlov, A.V. Golikov, V.Yu. Egorov, T. Mikolajski, E.S. Zaslavskaya, S. I. Klimushin, V.A. Tarashansky, A. M. Klabukov, Zh. A. M. Djilkibaev, A. A. Lukanin, N. M. Budnev, G. N. Dudkin, M.N. Gushtan, L. Jenek, A.A. Sumanov, A.H. Padusenko, I. I. Trofimenko, V.B. Kabikov, V. A. Poleschuk, G.V. Domogatsky, A.M. Ovcharov, Ch. Spiering, Yu. Parfenov, G.A. Litunenko, A.V. Lopin, R. Wischnewski, J.B. Lanin, V.A. Naumov, O.P. Pokalev, Valery Zurbanov, L.A. Donskicj, B. A. Borisovets, V. M. Padalko, I. A. Belolaptikov, V. I. Dobrynin, L. B. Bezrukov, O.J. Lanin, E. A. Osipova, J. Krabi, B. K. Lubsandorzhiev, A.G. Chensky, M. D. Gal'Perin, and M.I. Nemchenko
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Nuclear and High Energy Physics ,Oceanography ,DUMAND Project ,Detector ,Cosmic muons ,Underwater ,Atomic and Molecular Physics, and Optics ,Geology ,Particle detector - Published
- 1991
16. The lake baikal neutrino telescope NT-200: status, results, future
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N. I. Moseiko, A.P. Koshechkin, I.A. Sokalsky, B.A. Tarashansky, E.N. Pliskovsky, A. M. Klabukov, S.V. Lovcov, S.V. Fialkovsky, L. B. Bezrukov, A. I. Klimov, Alexander Moroz, M.B. Milenin, G.V. Domogatsky, I. A. Belolaptikov, A. I. Panfilov, T. I. Gress, T. Thon, R. R. Mirgazov, M.I. Rozanov, V.A. Balkanov, A.G. Chensky, Ole Streicher, L. A. Kuzmichev, R. Wischnewski, V.Yu. Rubzov, V.A. Netikov, O. N. Gaponenko, N. M. Budnev, V.F. Kulepov, E. A. Osipova, Zh. A. M. Djilkibaev, Yu. V. Parfenov, E.V. Kuznecov, I. V. Yashin, B. K. Lubsandorzhiev, A. A. Doroshenko, A. A. Garus, A. A. Pavlov, P. G. Pohil, E.G. Popova, Ch. Spiering, S. I. Klimushin, and I. A. Danilchenko
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Physics ,Nuclear and High Energy Physics ,Muon ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Solar neutrino ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Astrophysics ,Solar neutrino problem ,Atomic and Molecular Physics, and Optics ,Neutrino detector ,Measurements of neutrino speed ,High Energy Physics::Experiment ,Neutrino ,Neutrino astronomy ,Cherenkov radiation - Abstract
The Baikal Neutrino Telescope NT-200 has been put into operation on April 6th, 1998. We describe the parameters and structure of NT-200 and present results with various stages of the stepwise increasing detector: from NT-36 to NT-96. Results cover atmospheric muons, neutrino events, search for neutrino events from WIMPS annihilation, search for magnetic monopoles. We also give preliminary results of the combined operation of the underwater array and a Cherenkov EAS array, placed on the ice surface.
- Published
- 1999
17. The Baikal-experiment
- Author
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I.A. Belolaptikov, L.B. Bezrukov, B.A. Borisovets, E.V. Bugaev, G.V. Domogatsky, A.A. Doroshenko, M.D. Galperin, A.V. Golikov, Zh.-A.M. Jilkibaev, A.M. Klabukov, S.I. Klimushin, B.K. Lubsandorzhiev, A.I. Panfilov, I.A. Sokal'sky, L.N. Stepanov, I.I. Trofimenko, N.M. Budnev, A.G. Chensky, V.I. Dobrynin, A.D. Fomin, A.P. Koshechkin, J.B. Lanin, G.A. Litunenko, A.V. Lopin, V.A. Naumov, M.I. Nemchenko, Yu.A. Parfenov, A.A. Pavlov, V.A. Poleschuk, V.A. Primin, A.A. Schestakov, V.A. Taraschansky, A.V. Yakup, V.L. Zurbanov, E.S. Saslavskaya, V.B. Kabikov, L.A. Kuzmichev, E.A. Osipova, Yu.S. Kusner, P.P. Scherstyankin, G.N. Dudkin, A.M. Ovcharov, V.M. Padalko, J. Krabi, Ch. Spiering, T. Weinert, R. Wischnewski, P. Kakas, D. Kiss, and L. Tankó
- Subjects
Physics ,Nuclear and High Energy Physics ,Angular distribution ,Neutrino detector ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Astrophysics::Instrumentation and Methods for Astrophysics ,High Energy Physics::Experiment ,Cosmic ray ,Astrophysics ,Neutrino ,Atomic and Molecular Physics, and Optics ,Particle detector - Abstract
We review the historical development and the present status of the Baikal experiment, and sketch the 6-string detector “NT-200”, which is planned to be deployed until 1993 and to study neutrino astrophysics cosmic rays and particle physics.
- Published
- 1990
18. A DEVICE FOR DETECTION OF ACOUSTIC SIGNALS FROM SUPER HIGH ENERGY NEUTRINOS
- Author
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Yu. V. Parfenov, A.G. Chensky, D. P. Petuhov, O. A. Gress, A. I. Panfilov, S. V. Fialkovski, V. A. Poleschuk, B.A. Tarashansky, E. A. Osipova, D. Borschev, T. Mikolajski, M.I. Rozanov, A. A. Pavlov, B. K. Lubsandorzhiev, E.N. Pliskovsky, A. M. Klabukov, N. M. Budnev, K. V. Burmistrov, A. A. Doroshenko, V. V. Prosin, E.G. Popova, M.B. Milenin, L. A. Kuzmichev, S. Mikheyev, I. A. Belolaptikov, I. V. Yashin, V. M. Aynutdinov, R. Wischnewski, A. I. Klimov, Vy. Kuznetzov, L. B. Bezrukov, O. N. Gaponenko, G. Pan'kov, T. I. Gress, V. Yu. Rubtzov, A. V. Shirokov, Ya. Davidov, V.F. Kulepov, O. G. Grishin, A. Kochanov, R. R. Mirgazov, Zh. A. M. Djilkibaev, A.P. Koshechkin, V. A. Zhukov, L. V. Pankov, I. A. Danilchenko, A. N. Dyachok, K.V. Konischev, Ch. Spiering, R. V. Vasiljev, V.A. Balkanov, P. G. Pokhil, K.V. Golubkov, B. A. M. Shaibonov, and G.V. Domogatsky
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Physics ,Nuclear and High Energy Physics ,High energy ,High energy particle ,Physics::Instrumentation and Detectors ,Solar neutrino ,Astrophysics::High Energy Astrophysical Phenomena ,Neutrino telescope ,Astrophysics::Instrumentation and Methods for Astrophysics ,Astronomy ,Astronomy and Astrophysics ,Atomic and Molecular Physics, and Optics ,High Energy Physics::Experiment ,ddc:530 ,Neutrino - Abstract
We present the design of a device for detection of acoustic signals from high energy particle showers. The module will be stationary installed above the Baikal Neutrino Telescope NT-200+.
- Published
- 2006
19. High frequency noise in Lake Baikal as a background for the acoustic detection of high energy neutrinos
- Author
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G. Pan'kov, T. I. Gress, A. A. Pavlov, V. Yu. Rubtzov, A. V. Shirokov, A. Kochanov, R. R. Mirgazov, S. V. Fialkovski, V. A. Poleschuk, E. A. Osipova, L. B. Bezrukov, P. G. Pokhil, A.G. Chensky, O. G. Grishin, B. K. Lubsandorzhiev, B.A. Tarashansky, E.G. Popova, Ya. Davidov, R. V. Vasiljev, B. A. M. Shaibonov, I. A. Belolaptikov, E.N. Pliskovsky, I. A. Danilchenko, A. M. Klabukov, G.V. Domogatsky, K.V. Golubkov, I. V. Yashin, Vy. Kuznetzov, D. P. Petuhov, O. N. Gaponenko, A.P. Koshechkin, L. V. Pankov, N. M. Budnev, K. V. Burmistrov, V. M. Aynutdinov, V. A. Zhukov, R. Wischnewski, K.V. Konischev, M.B. Milenin, A. I. Klimov, V.A. Balkanov, Yu. V. Parfenov, O. A. Gress, A. N. Dyachok, Ch. Spiering, A. I. Panfilov, M.I. Rozanov, T. Mikolajski, A. A. Doroshenko, V.F. Kulepov, V. V. Prosin, Zh. A. M. Djilkibaev, L. A. Kuzmichev, S. Mikheyev, and D. Borschev
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Physics ,Nuclear and High Energy Physics ,High energy ,Physics::Instrumentation and Detectors ,Acoustics ,Astronomy and Astrophysics ,Interference (wave propagation) ,Atomic and Molecular Physics, and Optics ,Noise ,Amplitude ,Neutrino detector ,Correlation analysis ,ddc:530 ,Neutrino ,Frequency noise - Abstract
We review the ongoing work of the Baikal Collaboration on acoustic detection of super high energy neutrinos. Some results of the study of high frequency acoustic noise in Lake Baikal are presented. A lot of short impulses with different amplitudes and shapes were detected, which should be considered as a background for acoustic neutrino detection. However, most of the short impulses appear to be due to noise sound waves interference and can be eliminated by a correlation analysis. Only a few detected bipolar impulses probably were produced by quasi local sources.
- Published
- 2006
20. Search for a Diffuse Flux of High-Energy Extraterrestrial Neutrinos with the NT200 Neutrino Telescope
- Author
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V. A. Poleschuk, L. B. Bezrukov, I. A. Danilchenko, M.B. Milenin, R. R. Mirgazov, E. Vyatchin, S.V. Fialkovsky, I. I. Yashin, B. A. M. Shaibonov, V. A. Zhukov, T. I. Gress, P. G. Pokhil, B.A. Tarashansky, S. I. Klimushin, V.F. Kulepov, I. A. Belolaptikov, O. G. Grishin, L. A. Kuzmichev, O. A. Gress, S. Mikheyev, G.V. Domogatsky, D. Borschov, R. Wischnewski, A. V. Shirokov, A.G. Chensky, R. Vasiliev, E. A. Osipova, A. I. Klimov, A.P. Koshechkin, G. Pan'kov, B. K. Lubsandorzhiev, E.N. Pliskovsky, A. M. Klabukov, K.V. Konischev, V. M. Aynutdinov, Yu. A. Semeney, O. N. Gaponenko, A. I. Panfilov, V.A. Balkanov, M.I. Rozanov, N. M. Budnev, D. P. Petukhov, Yu. V. Parfenov, A. A. Doroshenko, T. Mikolajski, Zh.-A.M. Dzhilkibaev, V. V. Prosin, A. N. Dyachok, Ch. Spiering, L. V. Pankov, E.G. Popova, A. A. Pavlov, V. Rubtzov, and Ya. Davidov
- Subjects
Physics ,High energy ,Cherenkov detector ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Astrophysics (astro-ph) ,Neutrino telescope ,High Energy Physics::Phenomenology ,FOS: Physical sciences ,Astronomy and Astrophysics ,Cosmic ray ,Astrophysics ,law.invention ,law ,Extraterrestrial life ,ddc:540 ,Diffuse flux ,High Energy Physics::Experiment ,Neutrino ,Neutrino astronomy - Abstract
We present the results of a search for high energy extraterrestrial neutrinos with the Baikal underwater Cherenkov detector NT200, based on data taken in 1998 - 2002. Upper limits on the diffuse fluxes of $\nu_e+\nu_{\mu}+\nu_{\tau}$, predicted by several models of AGN-like neutrino sources, are derived. For an $E^{-2}$ behavior of the neutrino spectrum, our limit is $E^2 \Phi_{\nu}(E), Comment: 19 pages, 23 figures, submitted to Astroparticle Physics
- Published
- 2005
21. The Baikal Deep Underwater Neutrino Experiment: Results, Status, Future
- Author
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I. A. Belolaptikov, A. A. Garus, Yu. V. Parfenov, R. Wischnewski, N. M. Budnev, A. A. Doroshenko, S.V. Fialkovsky, D. P. Petukhov, T. Thon, Bayarto Lubsandorzhiev, S. A. Nikiforov, S. I. Klimushin, Zh. A. M. Djilkibaev, G.V. Domogatsky, I. V. Yashin, I. A. Danilchenko, R. R. Mirgazov, Ch. Spiering, A. I. Klimov, I. A. Sokalski, P. A. Pokolev, A. I. Panfilov, T. I. Gress, L. B. Bezrukov, A. A. Pavlov, P. G. Pokhil, A. M. Klabukov, M.I. Rozanov, V.Yu. Rubzov, Alexander Moroz, O.N. Gaponenko, E. A. Osipova, E.G. Popova, L. A. Kuzmichev, V.F. Kulepov, S.V. Lovzov, Ole Streicher, A.G. Chensky, B.A. Tarashansky, N. I. Moseiko, A.P. Koshechkin, V.A. Balkanov, and M.B. Milenin
- Subjects
Astroparticle physics ,Physics ,Nuclear and High Energy Physics ,Particle physics ,Muon ,Physics::Instrumentation and Detectors ,Solar neutrino ,Astrophysics (astro-ph) ,FOS: Physical sciences ,Solar neutrino problem ,Astrophysics ,WIMP ,Measurements of neutrino speed ,High Energy Physics::Experiment ,Neutrino ,Underwater - Abstract
We review the present status of the Baikal Underwater Neutrino Experiment and present results obtained with the various stages of the stepwise increasing detector: NT-36 (1993-95), NT-72 (1995-96) and NT-96 (1996-97). Results cover atmospheric muons, first clear neutrino events, search for neutrinos from WIMP annihilation in the center of the Earth, search for magnetic monopoles, and -- far from astroparticle physics -- limnology., Comment: Talk given at the Int. School on Nuclear Physics, Erice, Sept.1997
- Published
- 1998
- Full Text
- View/download PDF
22. Status of the Lake Baikal Experiment
- Author
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G.V. Domogatsky, V.A. Balkanov, I.A. Belolaptikov, L.B. Bezrukov, N.M. Budnev, A.G. Chensky, I.A. Danilchenko, Zh.-A. Djilkibaev, A.A. Doroshenko, S.V. Fialkovsky, O.N. Gaponenko, A.A. Garus, T.I. Gress, A.M. Klabukov, A.I. Klimov, S.I. Klimushin, A.P. Koshechkin, V.F. Kulepov, L.A. Kuzmichev, S.V. Lovzov, B.K. Lubsandorzhiev, M.B. Milenin, R.R. Mirgazov, A.V. Moroz, N.I. Moseiko, S.A. Nikiforov, E.A. Osipova, A.I. Panfilov, Yu.V. Parfenov, A.A. Pavlov, D.P. Petukhov, P.G. Pokhil, P.A. Pokolev, E.G. Popova, M.I. Rozanov, V.Yu. Rubzov, I.A. Sokalski, Ch. Spiering, O. Streicher, B.A. Tarashansky, T. Thon, R. Wischnewski, and I.V. Yashin
- Subjects
Nuclear and High Energy Physics ,Oceanography ,Neutrino detector ,Earth science ,Astrophysics (astro-ph) ,FOS: Physical sciences ,Environmental science ,Underwater ,Neutrino ,Astrophysics ,Atomic and Molecular Physics, and Optics ,Lepton - Abstract
We review the present status of the Baikal Underwater Neutrino Experiment and report on neutrino events recorded with the detector stages NT-36 and NT-96., Comment: 5 pages, 4 PostScript figures, uses here.sty and mine.sty, submitted to the Proc. of 5th Int. Workshop on Topics in Astroparticle and Underground Physics (LNGS INFN, Assergi, September 7-11, 1997)
- Published
- 1997
23. The Baikal underwater neutrino telescope: design, performance and first results
- Author
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A.V Rzhestshitski, B.A Tarashanski, B.K. Lubsandorzhiev, I. A. Danilchenko, M. I. Rosanov, A. A. Doroshenko, R. Wischnewski, V.Yu. Rubzov, M.N Nemchenko, T. Mikolajski, R. R. Mirgazov, H. Heukenkamp, R. Heller, A.L. Lopin, A Gaponenko, A. I. Klimov, L.A. Donskych, S. A. Nikiforov, V. I. Dobrynin, V.F. Kulepov, L. B. Bezrukov, A.N Padusenko, Ch. Spiering, O.Yu Lanin, Ch Wiebusch, P. G. Pokhil, A. A. Garus, Valery Zurbanov, J. A. M. Djilkibaev, M.N. Gushtan, A. M. Klabukov, Alexander Moroz, E. A. Osipova, I. A. Sokalski, A.G. Chensky, L. A. Kuzmichov, I. A. Belolaptikov, A. A. Sumanov, A.V. Golikov, Yu. V. Parfenov, S.V. Fialkovsky, B. A. Borisovets, S. I. Klimushin, S. I. Sinegovsky, A. A. Pavlov, J. Krabi, T. Thon, N. I. Moseiko, A.P. Koshechkin, I. I. Trofimenko, K. A. Pocheikin, Albrecht Karle, N. M. Budnev, Edgar Bugaev, G. N. Dudkin, D. P. Petukhov, A. I. Panfilov, Ole Streicher, V.Yu. Egorov, M.B. Milenin, N.V. Ogievetsky, G.V. Domogatsky, L. Tanko, O. A. Gress, V.B. Kabikov, T. A. Gress, and P. A. Pokolev
- Subjects
Physics ,Photomultiplier ,Particle physics ,Muon ,business.industry ,Cherenkov detector ,Detector ,Magnetic monopole ,Astronomy and Astrophysics ,law.invention ,Optics ,law ,Neutrino ,Underwater ,business ,Cherenkov radiation ,Particle Physics - Experiment - Abstract
The deep underwater Cherenkov neutrino telescope NT-200 is currently under construction at Lake Baikal. The "subdetectors" NT-36 (1993-95) and NT-72 (1995-96) have been operating successfully over 3 years. Various techniques have been developed to search for magnetic monopoles with these arrays. Here we describe a method used to detect superheavy slowly moving (beta = v/c = 0.00001 - 0.001) monopoles catalyzing baryon decay. We present results obtained from the preliminary analysis of the data taken with NT-36 detector in 1993. Furthermore, possibilities to observe faster (beta = 0.2 - 1) monopoles via other effects are discussed.
- Published
- 1997
24. The Baikal Neutrino project: Status and perspectives
- Author
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K.V. Konischev, I. A. Belolaptikov, Yu. A. Semeney, R. Vasiliev, V.A. Balkanov, A. N. Dyachok, Ole Streicher, Yu. V. Parfenov, Vy. Kuznetzov, Dmitry Chernov, R. R. Mirgazov, V. M. Aynutdinov, L. B. Bezrukov, O. A. Gress, V.F. Kulepov, V. A. Zhukov, N. I. Moseiko, A.P. Koshechkin, E. Vyatchin, B. A. M. Shaibonov, L. V. Pankov, V. Rubtzov, E. Popova, E.N. Pliskovsky, G.V. Domogatsky, A. M. Klabukov, M.B. Milenin, M. I. Rosanov, BayarJon Paul Lubsandorzhiev, R. Wischnewski, A. A. Pavlov, A. I. Klimov, E. A. Osipova, N. M. Budnev, V. Polecshuk, O. N. Gaponenko, A.G. Chensky, S. I. Klimushin, Ch. Spiering, A. I. Panfilov, I. I. Yashin, I. A. Danilchenko, G. Pan'kov, T. I. Gress, P. G. Pokhil, B. Tarashanky, L. A. Kuzmichev, Zh.-A.M. Dzhilkibaev, V. V. Prosin, and S. Mikheyev
- Subjects
Physics ,High energy ,Particle physics ,Range (particle radiation) ,Physics::Instrumentation and Detectors ,Astrophysics::High Energy Astrophysical Phenomena ,Neutrino telescope ,Diffuse flux ,Magnetic monopole ,High Energy Physics::Experiment ,Atmospheric neutrino ,Neutrino ,Neutrino oscillation - Abstract
We review the present status of the Baikal Neutrino Project and present results of a search for upward going atmospheric neutrinos, WIMPs and magnetic monopoles obtained with the detector NT-200. Also, the results of a search for very high energy neutrinos are presented. An upper limit on the v e+v μ+v T neutrino diffuse flux of E 2 · F(E) < 1.3 · 10 -6 cm-2 s-1 sr-1 GeV within a neutrino energy range 104 ÷ 107 GeV is obtained, assuming an E -2 behaviour of the neutrino spectrum and flavor ratio v e+v μ+v T = 1: 1: 1- We describe the moderate upgrade of NT-200 planned for the next years and discuss a possible detector on the Gigaton scale.
25. The Lake Baikal experiment
- Author
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Zh. A. M. Djilkibaev, Ole Streicher, R. Wischnewski, O. N. Gaponenko, S.V. Lovtzov, A. A. Pavlov, N. M. Budnev, T. Thon, G.V. Domogatsky, A. A. Garus, A.G. Chensky, A.P. Koshenchkin, R.V. Vasiljev, A. I. Panfilov, B.A. Tarashansky, P. G. Pohil, A. I. Klimov, I. A. Danilchenko, Yu. V. Parfenov, E.G. Popova, M.I. Rozanov, E. A. Osipova, E.V. Kuznetzov, M.B. Milenin, V.A. Netikov, B. K. Lubsandorzhiev, E.N. Pliskovsky, A. M. Klabukov, Alexander Moroz, V.A. Balkanov, S. I. Klimushin, L. B. Bezrukov, L. A. Kuzmichev, A. A. Doroshenko, I. A. Belolaptikov, I. V. Yashin, T. I. Gress, R. R. Mirgazov, V.Yu. Rubzov, S.V. Fialkovsky, I. A. Sokalski, Ch. Spiering, N. I. Moseiko, and V.F. Kulepov
- Subjects
Nuclear and High Energy Physics ,Physics::Instrumentation and Detectors ,Cherenkov detector ,Astrophysics::High Energy Astrophysical Phenomena ,Detector ,Astrophysics::Instrumentation and Methods for Astrophysics ,Atomic and Molecular Physics, and Optics ,Particle detector ,law.invention ,Paleontology ,Oceanography ,Neutrino detector ,law ,High Energy Physics::Experiment ,Underwater ,Neutrino ,Geology - Abstract
We review the present status of the Baikal Neutrino Project. The construction and performance of the large deep underwater Cherenkov detector NT-200 with 192 PMTs [1], which is currently taking data in Lake Baikal, are described. Some results from intermediate detector stages are presented.
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