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Your search keyword '"Alexandrov, I. A."' showing total 7 results
Start Over Author "Alexandrov, I. A." Topic high energy physics - experiment
7 results on '"Alexandrov, I. A."'

1. Experimental study of ionization yield of liquid xenon for electron recoils in the energy range 2.8 - 80 keV

Author

Akimov, D. Yu., Afanasyev, V. V., Alexandrov, I. S., Belov, V. A., Bolozdynya, A. I., Burenkov, A. A., Efremenko, Yu. V., Egorov, D. A., Etenko, A. V., Gulin, M. A., Ivakhin, S. V., Kaplin, V. A., Karelin, A. K., Khromov, A. V., Kirsanov, M. A., Klimanov, S. G., Kobyakin, A. S., Konovalov, A. M., Kovalenko, A. G., Kuchenkov, A. V., Kumpan, A. V., Melikyan, Yu. A., Nikolaev, R. I., Rudik, D. G., Sosnovtsev, V. V., and Stekhanov, V. N.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

We present the results of the first experimental study of ionization yield of electron recoils with energies below 100 keV produced in liquid xenon by the isotopes: 37Ar, 83mKr, 241Am, 129Xe, 131Xe. It is confirmed by a direct measurement with 37Ar isotope (2.82 keV) that the ionization yield is growing up with the energy decrease in the energy range below ~ 10 keV accordingly to the NEST predictions. Decay time of scintillation at 2.82 keV is measured to be 25 +/- 3 ns at the electric field of 3.75 kV/cm., Comment: 16 pages, 8 figures

Published
2014
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2. Two-phase xenon emission detector with electron multiplier and optical readout by multipixel avalanche Geiger photodiodes

Author

Akimov, D. Yu., Akindinov, A. V., Alexandrov, I. S., Belov, V. A., Bolozdynya, A. I., Burenkov, A. A., Buzulutskov, A. F., Danilov, M. V., Efremenko, Yu. V., Kirsanov, M. A., Kovalenko, A. G., and Stekhanov, V. N.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

A successful operation of a new optical readout system (THGEM + WLS + MGPDs (multichannel array of multipixel avalanche Geiger photodiodes) in a two-phase liquid xenon detector was demonstrated.

Published
2013
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3. Perspectives to measure neutrino-nuclear neutral current coherent scattering with two-phase emission detector

Author

RED Collaboration, Akimov, D. Yu., Alexandrov, I. S., Aleshin, V. I., Belov, V. A., Bolozdynya, A. I., Burenkov, A. A., Chepurnov, A. S., Danilov, M. V., Derbin, A. V., Dmitrenko, V. V., Dolgolenko, A. G., Egorov, D. A., Efremenko, Yu. V., Etenko, A. V., Gromov, M. B., Gulin, M. A., Ivakhin, S. V., Kantserov, V. A., Kaplin, V. A., Karelin, A. K., Khromov, A. V., Kirsanov, M. A., Klimanov, S. G., Kobyakin, A. S., Konovalov, A. M., Kovalenko, A. G., Kopeikin, V. I., Krakhmalova, T. D., Kuchenkov, A. V., Kumpan, A. V., Litvinovich, E. A., Lukyanchenko, G. A, Machulin, I. N., Martemyanov, V. P., Nurakhov, N. N., Rudik, D. G., Saldikov, I. S., Skorokhatov, M. D., Sosnovtsev, V. V., Stekhanov, V. N., Strikhanov, M. N., Sukhotin, S. V., Tarasenkov, V. G., Tikhomirov, G. V., and Zeldovich, O. Ya.

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment, Nuclear Experiment
Abstract

We propose to detect and to study neutrino neutral current coherent scattering off atomic nuclei with a two-phase emission detector using liquid xenon as a working medium. Expected signals and backgrounds are calculated for two possible experimental sites: Kalinin Nuclear Power Plant in the Russian Federation and Spallation Neutron Source at the Oak Ridge National Laboratory in the USA. Both sites have advantages as well as limitations. However the experiment looks feasible at either location. Preliminary design of the detector and supporting R&D program are discussed., Comment: 16 pages, 10 figures, RED collaboration

Published
2012
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4. Verification and Diagnostics Framework in ATLAS Trigger/DAQ

Author

Alexandrov, I., Amorim, A., Badescu, E., Barczyk, M., Burckhart-Chromek, D., Caprini, M., Conceicao, J. Da Silva, Dobson, M., Flammer, J., Hart, R., Jones, R., Kazarov, A., Kolos, S., Kotov, V., Klose, D., Liko, D., Lima, J., Lucio, L., Mapelli, L., Mineev, M., Pedro, L., Ryabov, Yu., Soloviev, I., and Wolters, H.

Subjects
High Energy Physics - Experiment
Abstract

Trigger and data acquisition (TDAQ) systems for modern HEP experiments are composed of thousands of hardware and software components depending on each other in a very complex manner. Typically, such systems are operated by non-expert shift operators, which are not aware of system functionality details. It is therefore necessary to help the operator to control the system and to minimize system down-time by providing knowledge-based facilities for automatic testing and verification of system components and also for error diagnostics and recovery. For this purpose, a verification and diagnostic framework was developed in the scope of ATLAS TDAQ. The verification functionality of the framework allows developers to configure simple low-level tests for any component in a TDAQ configuration. The test can be configured as one or more processes running on different hosts. The framework organizes tests in sequences, using knowledge about components hierarchy and dependencies, and allowing the operator to verify the functionality of any subset of the system. The diagnostics functionality includes the possibility to analyze the test results and diagnose detected errors, e.g. by starting additional tests and understanding reasons of failures. A conclusion about system functionality, error diagnosis and recovery advice are presented to the operator in a GUI. The current implementation uses the CLIPS expert system shell for knowledge representation and reasoning., Comment: Paper for the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003 (presented as poster). Format: PDF, using MSWord template, 5 pages, 6 figures. PSN TUGP005

Published
2003

5. Online Monitoring software framework in the ATLAS experiment

Author

Kolos, S., Alexandrov, I., Amorim, A., Barczyk, M., Badescu, E., Burckhart-Chromek, D., Caprini, M., Conceicao, J. Da Silva, Dobson, M., Flammer, J., Hart, R., Jones, R., Kazarov, A., Klose, D., Kotov, V., Liko, D., Lima, J., Lucio, L., Mapelli, L., Mineev, M., Pedro, L., Ryabov, Yu., Soloviev, I., and Wolters, H.

Subjects
High Energy Physics - Experiment
Abstract

A fast, efficient and comprehensive monitoring system is a vital part of any HEP experiment. This paper describes the software framework that will be used during ATLAS data taking to monitor the state of the data acquisition and the quality of physics data in the experiment. The framework has been implemented by the Online Software group of the ATLAS Trigger&Data Acquisition (TDAQ) project and has already been used for several years in the ATLAS test beams at CERN. The inter-process communication in the framework is implemented via CORBA, which provides portability between different operating systems and programming languages. This paper will describe the design and the most important aspects of the online monitoring framework implementation. It will also show some test results, which indicate the performance and scalability of the current implementation., Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 6 pages, PDF. PSN THGT003

Published
2003

6. Online monitoring software framework in the ATLAS experiment

Author

Barczyk, M., Burckhart-Chromek, D., Mihai Caprini, Da Silva Conceicao, J., Dobson, M., Flammer, J., Jones, R., Kazarov, A., Kolos, S., Liko, D., Lucio, L., Mapelli, L., Soloviev, I., Hart, R., Amorim, A., Klose, D., Jose Guilherme Lima, Pedro, L., Wolters, H., Badescu, E., Alexandrov, I., Kotov, V., Mineev, M., and Ryabov, Yu

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Detectors and Experimental Techniques, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

A fast, efficient and comprehensive monitoring system is a vital part of any HEP experiment. This paper describes the software framework that will be used during ATLAS data taking to monitor the state of the data acquisition and the quality of physics data in the experiment. The framework has been implemented by the Online Software group of the ATLAS Trigger&Data Acquisition (TDAQ) project and has already been used for several years in the ATLAS test beams at CERN. The inter-process communication in the framework is implemented via CORBA, which provides portability between different operating systems and programming languages. This paper will describe the design and the most important aspects of the online monitoring framework implementation. It will also show some test results, which indicate the performance and scalability of the current implementation., Talk from the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003, 6 pages, PDF. PSN THGT003

7. Verification and diagnostics framework in ATLAS trigger / DAQ

Author

Barczyk, M., Burckhart-Chromek, D., Caprini, M., Da Silva Conceicao, J., Dobson, M., Flammer, J., Jones, R., Kazarov, A., Kolos, S., Liko, D., Lucio, L., Mapelli, L., Soloviev, I., Hart, R., Antonio Amorim, Klose, D., Lima, J., Pedro, J., Wolters, H., Badescu, E., Alexandrov, I., Kotov, V., Mineev, M., and Ryabov, Yu

Subjects
High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Detectors and Experimental Techniques, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

Trigger and data acquisition (TDAQ) systems for modern HEP experiments are composed of thousands of hardware and software components depending on each other in a very complex manner. Typically, such systems are operated by non-expert shift operators, which are not aware of system functionality details. It is therefore necessary to help the operator to control the system and to minimize system down-time by providing knowledge-based facilities for automatic testing and verification of system components and also for error diagnostics and recovery. For this purpose, a verification and diagnostic framework was developed in the scope of ATLAS TDAQ. The verification functionality of the framework allows developers to configure simple low-level tests for any component in a TDAQ configuration. The test can be configured as one or more processes running on different hosts. The framework organizes tests in sequences, using knowledge about components hierarchy and dependencies, and allowing the operator to verify the functionality of any subset of the system. The diagnostics functionality includes the possibility to analyze the test results and diagnose detected errors, e.g. by starting additional tests and understanding reasons of failures. A conclusion about system functionality, error diagnosis and recovery advice are presented to the operator in a GUI. The current implementation uses the CLIPS expert system shell for knowledge representation and reasoning., Comment: Paper for the 2003 Computing in High Energy and Nuclear Physics (CHEP03), La Jolla, Ca, USA, March 2003 (presented as poster). Format: PDF, using MSWord template, 5 pages, 6 figures. PSN TUGP005

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