Speaker
Dr
Ivan Shulzhenko
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Description
A new NEVOD-EAS array for detection of extensive air showers (EAS) in the energy range 10^15 – 10^17 eV is being created in MEPhI (Moscow, Russia) on the basis of the Experimental Complex NEVOD. It will operate in conjunction with the Cherenkov Water Detector NEVOD, coordinate-tracking detector DECOR and neutron detector URAN, as well as with detector TREK which is now being constructed. The NEVOD-EAS array is aimed at independent estimation of the size, axis position and arrival direction of extensive air showers (EAS) registered with other detectors of the Experimental complex NEVOD. This information will provide calibration of two novel perspective techniques developed in the Experimental Complex NEVOD: the method of local muon density spectra for studying inclined muon bundles, as well as investigation of EAS hadronic component via thermalized neutrons.
Since the NEVOD-EAS array is being created at the densely built territory and detecting elements cannot be deployed in the same plane like in usual air-shower arrays, its registering system is organized in a cluster principle, and a newly developed cluster approach is used for experimental data analysis. Each cluster of the shower array is an independent system which includes 16 scintillation counters of EAS electron-photon component combined in 4 detector stations (DS) and registering electronics. Cluster electronics performs digitizing of analog signals, selection of local events according to intra-cluster triggering conditions, time-stamping of local events. Information on local events is transferred to the central DAQ post of control and synchronization of all clusters. Local events from different clusters are then combined according to their timestamps.
The features of the distributed cluster type registering system of the NEVOD-EAS shower array, as well as the cluster approach to experimental data analysis are discussed. The main characteristics of the array important for EAS reconstruction which were obtained by simulation, as well as were measured during the data taking in conjunction with other detectors of the Experimental complex NEVOD, are presented.
Primary author
Dr
Ivan Shulzhenko
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Co-authors
Dr
Aleksei Bogdanov
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Prof.
Anatoly Petrukhin
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Prof.
Andrea Chiavassa
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Dipartimento di Fisica dell’ Università degli Studi di Torino, Sezione di Torino dell’ Istituto Nazionale di Fisica Nucleare - INFN)
Dr
Dmitry Gromushkin
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Prof.
Igor Yashin
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Dr
Konstantin Kompaniets
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Dr
Mikhail Amelchakov
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Mr
Oleg Likiy
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Dr
Semyon Khokhlov
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Dr
Victor Kindin
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
Dr
Victor Shutenko
(National Research Nuclear University MEPhI (Moscow Engineering Physics Institute))
