Date of commissioning (first-stage array): April 1993.
Physics, astronomy, Earth sciences (elementary particle physics, cosmic rays, neutrino astrophysics, and physical limnology).
|Depth of detecting modules, m||1100-1200|
|Distance to shore, km||3.6|
|Geometrical volume, m3||about 90,000|
|Number of detecting modules||192|
|Effective area for muons, m2||2,300 (muon energy 1 TeV)|
|4,100 (muon energy 1 TeV|
|Atmospheric muon counting rate, Hz||20|
|Counting rates for muons from lower hemisphere||600 per year|
The set-up is the world's only operating full-scale deep-water Cherenkov detector for elementary particles. Its nearest competitor, the US-Japanese DUMAND Project in Hawaii, will not start operation until the end of 1995. A deep-ice Cherenkov array in Antarctica will not begin operating until winter, 1996.
The Baikal detector, even in its present state, is one of the world's largest arrays for the investigation of cosmic-ray muons. Its size and deep-water location give it the best chance for locating superheavy magnetic monopoles and other dark-matter candidates.
The telescope, together with auxiliary acoustic and hydrologic systems, provides scientists with their first opportunity to simultaneously monitor characteristics of several cubic kilometers of the Baikal water.
Layout of the Baikal neutrino telescope: 1, 2, 3 - wire and optical cables to shore; 4, 5, 6 - string stations for shore cables; 7 - string station supporting the mechanical frame of the telescope; 8 - test string for the optical cable; 9, 10, 11 - autonomous string stations with acoustical equipment used for precise positioning; 12 - hydrology string station.
Deployment of the detecting modules
I.A. Belolaptikov et al. (1990), The BAIKAL-experiment. Nucl. Phys. B (Proc. Suppl.) Vol. 14, p. 51.
I.A. Belolaptikov et al. (1991), The lake Baikal deep underwater detector. Nucl. Phys. B (Proc. Suppl.) Vol. 19. p. 388.
S.D. Alatin et al (1992), Physics capabilities of the second-stage Baikal detector NT-200. Nucl. Phys. B (Proc. Suppl.) Vol. 28, p. 491.
L.B. Bezrukov et al. (1993), QUASAR-370. The Optical Sensor of the Lake Baikal Telescope. Proc. 3rd Int. NESTOR Workshop. Pylos, Greece, p. 645.
I.A. Belolaptikov et al. (1994), The Lake Baikal Underwater Telescope NT-36: First Months of Operation. Nucl. Phys. B (Proc. Suppl.) Vol. 35. p. 290
I.A. Belolaptikov et al. (1994), Track reconstruction and background rejection in the Baikal neutrino telescope. Nucl. Phys. B (Proc. Suppl.) p. 301
The Baikal neutrino telescope was created and its investigations are performed in co-operation with the DESY Institute for High-Energy Physics (Zeuthen, Germany). Some stages are supported by grants:
40 researchers and 30 technicians.
Number of foreign scientists working at the installation: 9 man-year (DESY-IfH, Gemany).
Additional possibilities for receiving foreign specialists: 10 man-year.
Vacancies for accommodation of foreign scientists: 5 man-year.
The telescope is located in the Irkutsk region, Sljudjanka district, at km 106 of the Baikal railway.
Russian Research Centre "Institute for Nuclear
Research", Russian Academy of Sciences
60th October Anniversary Av. 7a, Moscow 117312
Phone: (095) 135-7760, 133-6585
Fax: (095) 135-2268
Director of the Institute: Victor A. Matveev
Responsible person: Leonid B. Bezrukov
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Last updated December, 1995