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6 results on '"A.V. Skurihin"'

1. Gigaton Volume Detector in Lake Baikal: status of the project

Author

V. A. Kozhin, M.B. Milenin, K.V. Golubkov, Mark Shelepov, Evgenii V Rjabov, I. A. Danilchenko, K.V. Konischev, Aleksandr Gafarov, Olga Suvorova, G.B. Safronov, A. I. Panfilov, Zdenek Hons, B.A. Tarashansky, D.A. Kuleshov, R. Bannash, Rastislav Dvornický, Aleksandr Valentinovich Avrovin, L. V. Pankov, G.V. Domogatsky, A.D. Avrorin, F.K. Koshel, R. R. Mirgazov, Aleksey Zagorodnikov, Ivan Štekl, O.G. Kebkal, V.F. Kulepov, M.I. Rozanov, E. A. Osipova, B.A. Shaybonov, V.A. Tabolenko, Valery Zurbanov, A. A. Doroshenko, A. N. Dyachok, A.P. Koshechkin, S.V. Fialkovsky, Fedor Šimkovic, E.N. Pliskovsky, A.V. Korobchenko, Zhan Dzhilkibaev, N. M. Budnev, I. A. Belolaptikov, Sergey Yakovlev, Konstantin Kebkal, V.B. Brudanin, D. P. Petukhov, V.M. Aynutdinov, T. I. Gress, Lukas Fajt, A.V. Skurihin, and M.M. Kolbin

Subjects
Nuclear physics, Physics, Neutrino detector, Neutrino telescope, Detector, Cluster (physics), Volume (compression)
Abstract

Baikal-GVD is a kilometer-scale neutrino telescope under construction in Lake Baikal, which will be formed by multi-megaton subarrays – clusters of strings. A first demonstration cluster “Dubna” has been deployed in 2015 and comprises 192 optical modules (OMs). In 2016 this cluster was upgraded to the baseline configuration which comprises 288 OMs arranged at eight strings. The second full-scale GVD-cluster was deployed and put in operation in 2017. We review the present activity towards the GVD implementation and discuss some selected results obtained with the “Dubna” cluster.

Published
2018
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2. Data management and processing system for the Baikal-GVD telescope

Author

Valery Zurbanov, R. R. Mirgazov, Fedor Šimkovic, A.D. Avrorin, I. A. Belolaptikov, M.B. Milenin, Konstantin Kebkal, A. I. Panfilov, T. I. Gress, O.G. Kebkal, Olga Suvorova, Lukas Fajt, Sergey Yakovlev, Mark Shelepov, A.V. Skurihin, M.I. Rozanov, R. Bannash, L. V. Pankov, Evgenii V Rjabov, I. A. Danilchenko, M.M. Kolbin, Aleksandr Gafarov, K.V. Konischev, Zdenek Hons, V.A. Tabolenko, K.V. Golubkov, A. A. Doroshenko, B.A. Tarashansky, V.M. Aynutdinov, V. A. Kozhin, D. P. Petukhov, Aleksandr Valentinovich Avrovin, G.V. Domogatsky, Aleksey Zagorodnikov, S.V. Fialkovsky, B.A. Shaybonov, E.N. Pliskovsky, V.B. Brudanin, A. N. Dyachok, Ivan Štekl, V.F. Kulepov, A.P. Koshechkin, A.V. Korobchenko, E. A. Osipova, G.B. Safronov, Rastislav Dvornický, Zhan Dzhilkibaev, N. M. Budnev, D.A. Kuleshov, and F.K. Koshel

Subjects
Telescope, Flexibility (engineering), Software, business.industry, law, Event (computing), Data management, Real-time computing, Point (geometry), Event loop, Raw data, business, law.invention
Abstract

The Baikal-GVD neutrino telescope is being constructed in lake Baikal. The robust Baikal Analysis and Reconstruction Software (BARS) has been developed to convert raw data into physics results. To provide a stable and continuous analysis of all the data an automatic data processing using database is developed. The flexibility of the concept makes it easy to add new steps at any point of the analysis chain. The software is ROOT based collection of C++ classes driven by a central event loop. Now the basic algorithms have been implemented in the system such as event building, signal extraction, background rejection and simple reconstruction.

Published
2017
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3. Baikal-GVD: Time Calibrations in 2016

Author

Aleksandr Gafarov, A.P. Koshechkin, Evgenii V Rjabov, B.A. Shaybonov, V.F. Kulepov, Fedor Šimkovic, A. N. Dyachok, N. M. Budnev, M.B. Milenin, I. A. Danilchenko, A.V. Korobchenko, V.M. Aynutdinov, Zdenek Hons, Mark Shelepov, A. A. Doroshenko, I. A. Belolaptikov, Konstantin Kebkal, A.D. Avrorin, E. A. Osipova, B.A. Tarashansky, D.A. Kuleshov, Valery Zurbanov, F.K. Koshel, Zhan Dzhilkibaev, O V Surovova, A. I. Panfilov, K.V. Konischev, Sergey Yakovlev, Anatoly Kozhin, A.V. Avrorin, O.G. Kebkal, M.I. Rozanov, Aleksey Zagorodnikov, E.N. Pliskovsky, G.B. Safronov, Rastislav Dvornický, L. V. Pankov, G.V. Domogatsky, K.V. Golubkov, D. P. Petukhov, S.V. Fialkovsky, Ivan Štekl, R. Bannash, V.A. Tabolenko, T. I. Gress, Lukas Fajt, A.V. Skurihin, M.M. Kolbin, V.B. Brudanin, and R. R. Mirgazov

Subjects
Neutrino telescope, Detector, Calibration, Cluster (physics), Volume (computing), Environmental science, Angular resolution, Effective volume, Remote sensing
Abstract

In April 2015, the first part (cluster) of the newly constructed next-generation neutrino telescope, Gigaton Volume Detector (GVD), was put into operation in the lake Baikal and started with data taking followed by another cluster installed in April 2017 thus doubling the number of installed Optical Modules (OMs) and instrumented volume. Moreover, the substantial extension of this detector is planned in the next few years. Specifically, another two clusters are going to be installed every consecutive year. In total 8 clusters consisting of 2304 OMs with overall effective volume ~0.4 km3 is going to be deployed by 2020. The vital condition for high angular resolution of reconstructed tracks of particles detected in GVD is a precise timing of individual channels which can be achieved with specialized time calibration systems. In this article, the different light sources and procedures used for time calibration of the GVD in the past as well as the newly developed ones are described and the results of the 2016 time calibration of the cluster Dubna are presented, especially the precision of intra and intersection calibrations and variations of calibration parameters in time.

Published
2017
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4. Calibration and monitoring units of the Baikal-GVD neutrino telescope

Author

K.V. Golubkov, Evgenii V Rjabov, E. A. Osipova, A. A. Doroshenko, A.V. Korobchenko, A.V. Avrorin, M.B. Milenin, I. A. Belolaptikov, G.V. Domogatsky, Aleksey Zagorodnikov, Konstantin Kebkal, B.A. Shaybonov, Mark Shelepov, D.A. Kuleshov, A. N. Dyachok, Aleksandr Gafarov, Ivan Štekl, E.N. Pliskovsky, F.K. Koshel, A.V. Kozhin, V.M. Aynutdinov, Olga Suvorova, L. V. Pankov, B.A. Tarashansky, T. I. Gress, S.V. Fialkovsky, A.P. Koshechkin, D. P. Petukhov, Lukas Fajt, N. M. Budnev, A.V. Skurihin, A.D. Avrorin, Fedor Šimkovic, A. I. Panfilov, M.M. Kolbin, O.G. Kebkal, M.I. Rozanov, R. Bannash, Sergey Yakovlev, Z. Honz, V.A. Tabolenko, K.V. Konischev, Zhan Dzhilkibaev, Valery Zurbanov, R. R. Mirgazov, G.B. Safronov, Rastislav Dvornický, V.B. Brudanin, I. A. Danilchenko, and V.F. Kulepov

Subjects
Physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, System of measurement, Neutrino telescope, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Calibration, Neutrino astronomy, Neutrino, Charged particle, Cherenkov radiation, Remote sensing
Abstract

The Baikal-GVD is a cubic kilometer scale neutrino telescope which is deployed in Lake Baikal, that will perform neutrino astronomy studies. It consists of sub-arrays - clusters of about 300 optical modules each, that detect the Cherenkov light radiated by charged particles induced by neutrino interactions with the surrounding medium. The performance of the neutrino telescope relies on the precise timing and positioning calibration of the detector elements, continuous control and monitoring of a behavior of measuring systems, as well as environmental conditions which may affect light detection and event selection. This contribution describes the units which are used in GVD for calibration and monitoring purposes.

Published
2017
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5. TAIGA-HiSCORE: results from the first two operation seasons

Author

I. V. Yashin, Evgeny Postnikov, V. V. Kindin, Bayarto Lubsandorzhiev, A. A. Petrukhin, Mikhail Panasyuk, B.A. Tarashansky, Yulia Kazarina, V. V. Lenok, Razmik Mirzoyan, Yu. Semeney, E. M. Popescu, Valery Zurbanov, Yaroslav Sagan, B. M. Sabirov, A. Porelli, A. Chiavassa, V. Prosin, Grigory Rubtsov, N. N. Kalmykov, O. A. Gress, A. V. Tkachenko, V. A. Poleschuk, E.G. Popova, A. Sidorenkov, A. N. Dyachok, C. Spiering, V. A. Kozhin, Andrey Sokolov, L. G. Sveshnikova, N. M. Budnev, M. Brueckner, N. B. Lubsandorzhiev, Martin Tluczykont, Yu. Lemeshev, V.A. Tabolenko, S. Kiryuhin, R. D. Monkhoev, T. I. Gress, D. Zhurov, V. Slunecka, E. A. Kravchenko, I. I. Astapov, V. S. Ptuskin, E. E. Korosteleva, A.V. Skurihin, A. Ivanova, P. Kirilenko, L. V. Pankov, A. Garmash, Ralf Wischnewski, L. A. Kuzmichev, R. Nachtigall, R. R. Mirgazov, Dieter Horns, Oleg Fedorov, A. Borodin, A. Pushnin, E. A. Osipova, Pavel Bezyazeekov, V. Boreyko, N. V. Gorbunov, A. Pakhorukov, L. G. Tkachev, V. Samoliga, M. Kunnas, Evgenii V Rjabov, Aleksey Zagorodnikov, K. G. Kompaniets, O. Grishin, Victor Grebenyuk, A. A. Grinyuk, Aleksandr Gafarov, A. A. Silaev, and R. P. Kokoulin

Subjects
Lidar, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Calibration, Environmental science, Cutoff, Sampling (statistics), Cosmic ray, Satellite, Cherenkov radiation, Remote sensing
Abstract

The very to ultra high energy gamma-ray regime up to several 100 TeV is the key to spectrally resolve the cutoff regime of the long-sought Pevatrons, the Galactic cosmic-ray PeV accelerators. One component of the TAIGA hybrid detector is the TAIGA-HiSCORE shower-front sampling timing array, which currently consists of 28 wide angle (0.6\,sr) air Cherenkov timing stations distributed on an area of 0.25 km$^{2}$, and which will be doubled in area by fall 2017. We report on the status and first results of the HiSCORE timing array after the first 2 operation seasons, including calibration studies on timing and pointing, cross calibration with data from the first TAIGA-IACT, observations with the timing array of a LIDAR operating on the ISS, a measurement of the Cosmic Ray spectrum, and a systematic search for high energy gamma-rays from Galactic sources such as the Crab.

Published
2017
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6. Search for cascade events with Baikal-GVD demonstration cluster 'Dubna'

Author

A. A. Doroshenko, A. I. Panfilov, O.G. Kebkal, D.A. Kuleshov, M.I. Rozanov, B.A. Shaybonov, F.K. Koshel, V.F. Kulepov, Zdenek Hons, A. N. Dyachok, K.V. Konischev, D. P. Petukhov, Aleksandr Valentinovich Avrovin, M.B. Milenin, I. A. Belolaptikov, Konstantin Kebkal, Olga Suvorova, Aleksandr Gafarov, R. Bannash, K.V. Golubkov, Sergey Yakovlev, L. V. Pankov, A.P. Koshechkin, Aleksey Zagorodnikov, N. M. Budnev, V.A. Tabolenko, A.D. Avrorin, Fedor Šimkovic, R. R. Mirgazov, G.V. Domogatsky, V.M. Aynutdinov, Ivan Štekl, V. A. Kozhin, G.B. Safronov, Evgenii V Rjabov, Rastislav Dvornický, A.V. Korobchenko, T. I. Gress, Mark Shelepov, Lukas Fajt, V.B. Brudanin, A.V. Skurihin, E. A. Osipova, M.M. Kolbin, E.N. Pliskovsky, Valery Zurbanov, Zhan Dzhilkibaev, I. A. Danilchenko, B.A. Tarashansky, and S.V. Fialkovsky

Subjects
Cascade, Neutrino telescope, Cluster (physics), Underwater, Geology, Remote sensing
Abstract

Deep underwater neutrino telescope „Dubna“ – the first, demonstration cluster of Baikal-GVD, has been deployed in April 2015 and was operating up to February 2016 in Lake Baikal. In 2016 this array was upgraded to baseline configuration of GVD-cluster by adding additional 96 optical modules. The next step of array extension was provided in 2017 by deployment of second GVD-cluster in Lake Baikal. We present here preliminary results of a search for cascade events using data sample recorded in 2015 by Dubna array and corresponding to 41 live days of data taking.

Published
2017
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