Source: http://www.yerphi.am/inner.php/?id=13&lid=6&name=Education&subname=Video%20Lectures&N=VideoLectures&LN=menu&lang=en
Timestamp: 2019-04-25 22:08:26+00:00

Document:
The experimental physics division (EPD) at Yerevan Physics Institute (YerPhI) established in 1943 by Artem Alikhanian (one of the founders and first director of YerPhI) and recently named by Hamlet Vartapetian (Deputy Director of YerPhI in 1974-1993), traditionally is active in a range of experiments studying the fundamental constituents of matter by scattering of photons and electrons from proton and nuclear targets. Current research in high energy physics includes studies of p-p/A interactions using the LHC at CERN (ATLAS, CMS and ALICE experiments), studies of the structure of hadrons and electromagnetic interaction properties with high energy electrons and photons in close collaboration with researchers at Jefferson Lab (Halls A, B , C, D) and at DESY in Hamburg. EPD is involved in studies of very high energy gamma ray astrophysics in collaboration with researchers at HESS, CTA.
Research groups of EPD are active also in studies of fission and fragmentation of nuclei with real and virtual photon beams, low energy nuclear physics based on AANL's electron linear accelerator LUE-75 and proton beam of the Cyclone-18. Search of rare processes in underground laboratory of Avan salt mine is also carried out.
EPD groups are involved in methodic studies: plastic scintillators, substrates for nuclear targets, NaJ(Tl) detectors, neutron detectors, microstrip silicone detectors, RF phototube, low-pressure MWPC. Synthesis, research and application of new derivatives of chitosan are also studied.
Cosmic Ray Division physicists perform research in almost all areas of the Astroparticle physics. Amongst them are CR Origin and acceleration mechanisms, Solar-terrestrial connections; solar modulation of galactic CRs, Acceleration of protons on Sun, High Energy phenomena in Atmosphere, Thunderstorm Ground Enhancements (TGEs), Lightning physics, Monitoring of geophysical parameters, Scientific instrumentation, Multivariate data analysis.
Among the main achievements of recent years are the discovery of energetic protons (with energies greater than 20 GeV) accelerated in the vicinity of the Sun during Ground Level Enhancement (GLE) event N69; simultaneous fluxes of electrons, gamma rays and neutrons measured at mountain altitudes; proving the existence of the new high-energy phenomenon (TGEs) in the thunderstorm atmospheres; the “Cloud Extensive Showers - CESs”. Also, a notable achievement is the registration of long-lasting radiation from the thunderclouds (up to several hours).
Development of the Aragats Space Environmental Center (ASEC), Armenian Geophysics Network in Armenia and Artsakh and founding of the worldwide network of new particle detectors named SEVAN (Space Environment Viewing and Analysis Network) were the key fulfillments of the recent years. Nodes of the SEVAN network are now operating in Armenia, India, Bulgaria, Croatia, Slovakia and Czech Republic. Besides these achievements introducing of new model of lightning initiation was a step forward for this field of researches.
CP&IT division is providing the activities in the following directions: The whole YerPhI related activities such as YerPhI Network support and developmentand ITC Services Support: Permanent (wired & wireless) routing and switching multiprotocol connectivity; Managed and guarantied bandwidth; Access to Armenian Scientific Research Computer Network & Armenian Grid; Domain Name Service (DNS); E-Mail services (SMTP, POP, IMAP), Webmail, Mailing Lists Basic Services; WWW(HTTP,HTTPS); Internet accessible Information and Database Systems; Secure Data Transmission (VPN, SSH, SFTP, SSL, S-tunnel); Remote Administration; Web Hosting; Server/Router installation and maintenance; Archive, Backup, Data Storage and data Preservation; Antivirus, Antispam, Antispyware support; Voice and Video Conferencing (Policom HDX 6000); SIP VoIP Telephone Service (Asterisk); WiFi And Eduroam (education roaming) world-wide Wifi roaming access service for international research and education community.; Video media server (Open Meetings); Document Server (Invenio CERN/IAEA)High-Performance Computing; Grid Clusters; Batch Clusters; Storage Servers; Users support; IT training for Yerphi Staff; Users Support & ConsultingThe important scientific sub-direction is the Physics Analysis based on experimental data obtained by different international collaborations (HERMES, OLYMPUS and soon Belle2)One more sub-direction of the CP&IT activities is related to the computational physics, namely to the random number generators development and statistical testing, as well to Monte Carlo method applications.
Applied Physics Researches Division includes groups specialized on solid state radiation physics, optical spectroscopy, biophysics, accelerator diagnostics and vacuum/welding technologies.
Currently the material science is at high level at the APRD. One of the main focuses of the division is the study of the influence of radiation (particularly of the fast electron beams) on the physical, optical and biological properties of materials (laser single crystals, semiconductors, ceramics, natural minerals, etc.). Basic research is carried out in the field of fundamental phenomena in wide-gap materials and their application prospects (scintillation detectors, dosimeters, luminescent tubes and displays, materials for nuclear energetics, etc.). Other perspective directions are development of Radiation Resistant Thermoregulating Coatings for space vehicles and Vibrating Wire Technology in accelerator physics, radio-cryobiology and radioecology.
Recently division groups activities included various international and local collaborations with institutions like University of Tartu (Tartu, Estonia), Lebedev Physics Institute (Moscow, Russia), DESY (Hamburg, Germany), HTM-Reetz GmbH (Berlin, Germany), Ulsan National Institute of Science and Technology, (Ulsan, Korea), CANDLE SRI (Yerevan, Armenia), etc..
Isotopes Research and Production Department was created in 2010. The department activity is devoted mainly to creation and development of production of radioactive isotopes for medical purposes.
During the first years 99mTc and 123I photo-production technology development and trial production on LUE 50 linear electron accelerator of ANSL (Yerphi) had been done. Since 2013 99mTc full chain production technology development using enriched 100Mo target on IBA C18 cyclotron was started, including target preparation, target cooling system, extraction of 99mTc from irradiated material and expensive 100Mo target material recovery. Also researches of other medical isotopes (67Ga, 68Ga, 67Cu and 64Cu) production on IBA C18 cyclotron are started.
Applied physics group has the self-supporting activities, on a fully commercial basis, including modification of plastic insulation tubes on the high-intensity beam linear accelerator (up to 4 MeV) for the cable industry.X-Ray instrumentation group activity concentrated on the development of a 3D image X-ray digital registration system, including development of thin film scintillators YAG:Ce and GGG:Ce, development of large area image detectors with spatial resolution 50 mkm and development of X-ray digital imaging systems, also for investigation of radiation hardness of scintillyator depends on heavy metal concentration.
Center for Cosmology and Astrophysics is traditionally concentrated on nonlinear problems of cosmology, including advanced numerical methods for description of evolution of perturbed Hamiltonian systems, stability of gravitating systems, N-body chaos, non-random structures and universal compression in signals. Studies involve cosmic microwave background radiation, conformal cyclic cosmology, time arrow, modified gravity and dark sector. Applications include coding and mutations in genomic sequences (US patent received).
Recent activities include participation in LARES (LAser RElativity Satellite, Italian Space Agency) satellite project on high precision testing of General Relativity, initiation and successful probing of Lorentz invariance at European Synchrotron Radiation Facility (Grenoble); results become reference numbers for theory. Reports are at Solvay conference on physics, IAU General Assembly, Swiss Biennial on Science, Technics and Aesthetics, Clay Mathematics Institute, Oxford and other noted forums. Most of ongoing studies are performed in collaboration with noted centers.
--- Ani Aprahamyan P. Armen Gulkhasyan Sh. Ruben Dallakyan K. Gevorg Karyan A. Sargis Taroyan P. Artyom Abelyan R. Seryozha Hakobyan A. Hrayr Babayan S. Samvel Babayan A. Armen Baghdasaryan B. Shirak Barseghyan R. Hunan Beybutyan N. Anahit Gasparyan M. Armen Gevorgyan T. Antonina Goltsova I. Arayik Grigoryan M. Varazdat Eghiazaryan V. Armen Engoyan V. Marsel Mazmanyan B. Zalibek Manukyan G. Ashot Merdinyan K. Misha Mnoyan Ts. Boris Ohanyan A. Samvel Sargsyan A. Gnel Sukiasyan Ts. Sergey Terteryan V.. Merine Aghinyan A. Inna Aznauryan G. Ruben Alanakyan A. Armen Allahverdyan E. Lev Ananikyan N. Nerses Ananikyan S. Elena Apresyan A. Gevorg Arakelyan A. Grachya Asatryan M. Sanasar Babajanyan G. Hrachya Babujyan M. Edvard Beghloyan A. Hayk Gevorgyan L. Zhirayr Gevorgyan S. Lekdar Gevorgyan A. Ara Grigoryan A. Arsen Eghiazaryan G. Vahan Zhamkochyan M. Nikolay Ivanov Ya. Nikolay Izmailyan Sh. Ara Ioannisyan N. David Karakhanyan R. Hrachya Lazaryan A. Tamara Lanyova V. Ruben Manvelyan P. Narek Martirosyan G. Hayk Minasyan R. Ruben Mkrtchyan L. Mikayel Nalbandyan A. Armen Nersisyan P. Artyom Hovhannisyan A. Vahan Hovhannisyan V. Koryun Hovhannisyan B. Petros Petrosyan A. Arpine Piloyan S. Hayk Poghosyan R. Armen Poghosyan R. Hasmik Poghosyan R. Gabriel Poghosyan R. Rubik Poghosyan G. David Sahakyan B. Ara Sedrakyan G. Sayatnova Tamaryan N. Rafael Tumanyan V. Sergey Tumasyan A. Shahane Khachatryan A. Armine Amekhyan S. Vahagn Gurzadyan G. Gegham Egoryan M. Sergey Mirzoyan S. Seda Sargsyan N. Harutyun Khachatryan G. Felix Adamyan V. Hrant Gulkanyan R. Ivetta Kerobyan A. Hamlet Mkrtchyan G. Valeriy Poghosov S. Albert Sirunyan M. Robert Avagyan O. Garnik Ayvazyan M. Vardan Aloyan A. Vrezh Baghdasaryan G. Lusine Vahradyan R. Vasak Ghavalyan B. Hamlet Zohrabyan G. Hasmik Ghazaryan O. Hrachya Marukyan O. Tigran Mkrtchyan S. Robert Oganezov O. Artashes Papyan K. Aramayis Petrosyan A. Galust Sargsyan Zh. Armen Tumasyan R. Levon Hakobyan A. Arshak Asaturyan R. Hakob Voskanyan B. Nerses Gevorgyan E. Natalya Dashyan B. Vanik Kakoyan A. Yeranuhi Ghandilyan S. Samvel Mayilyan S. David Martiryan A. Karen Ohanyan Sh. Vardan Tadevosyan O. Grigor Khachatryan V. Albert Shahinyan A. Robert Ayvazyan B. Henrik Vardanyan S. Koryun Grigoryan L. Nersik Grigoryan K. Simon Zhamkochyan V. Amur Margaryan T. Vachik Khachatryan G. Patrik Khachatryan A. Hayk Elbakyan V. Armenuhi Abramyan V. Eghishe Hambardsumyan V. Marina Manaseryan M. Narine Manukyan L. Aza Moiseenko A. Mariam Pilikyan A. Viktorya Sargsyan R. Roza Avetisyan V. Yurik Gharibyan A. Armen Gyurjinyan V. Viktor Yaralov Ya. Andranik Aleksanyan Yu. Sergey Amirkhanyan M. Tigran Kotanjyan V. Olga Poghosova F. Levon Poghosyan A. Levon Davtyan G. Mikayel Zamkochyan V. Gagik Papyan A. Vardan Sahakyan A. Sergey Avagyan K. Ashot Hakobyan S. Henrik Harutyunov L. Albert Babayan Z. Arshak Ghazaryan A. Khachatur Lalayan A. Artavazd Margaryan A. Vrezh Martirosyan A. Georgiy Tumasyan A. Grigor Khachatryan G. Stanislava Khosrovyan A. Hajkuhi Simonyan A. Karen Avagyan M. Ara Daryan V. Ashkhen Eghiazaryan M. Eduard Mnatsakanyan A. Ashot Chilingaryan A. Gagik Hovsepyan G. David Pokhsraryan K. Suren Soghomonyan B. Sergey Sokhoyan O. Eghian Khanikyants K. Balabek Sargsyan S. Sergey Abovyan M. Tigran Karapetyan T. Lev Kozliner I. Meri Zazyan Z. Gayane Karapetyan A. Grigoriy Karapetyan G. Hripsime Mkrtchyan V. Karen Apresyan G. Arsen Ghalumyan S. Vardan Ghazaryan R. Hamestuhi Rshtuni B. Susanna Safaryan V. Narine Khachatryan N. Marat Avagyan S. Seryozha Avagyan M. Aram Hakobyan H. Edik Arshakyan V. Karen Asatryan S. Ashot Baghdasaryan B. Slavik Vardanyan G. Gurgen Jabaryan V. Tatul Karapetyan A. Hamlet Martirosyan S. Hayk Hovsepyan K. Hrant Piliposyan S. Shushik Piliposyan H. Sargis Saghatelyan Z. Anahit Sargsyan G. Samvel Hunanyan A. Artash Petrosyan G. Levon Avetisyan L. Geim Rushanyan B. Gayane Kostanyan R. Norayr Akopov Z. Karine Vardanyan L. Gayane Ghevondyan G. Gevorg Nazaryan M. Hazaravard Ghumaryan M. Harutyun Dermenjyan A. Artak Martirosyan V. Yevgenya Melikyan A. Robert Avetyan A. Ruben Aghekyan V. Sargis Bagratunyan V. Vanik Danielyan D. Henri Derdsakyan A. Arman Martirosyan A. Vahram Sargsyan L. Vachagan Harutyunyan V. Hrant Eritsyan N. Nina Mkrtchyan I. Garnik Khachatryan E. Suren Harutyunyan G. Suren Yeghiazaryan L. Lazar Lazarev M. Eleonora Lazareva G. Ashot Margaryan V. Laura Shahinyan A. Vika Arzumanyan V. Vahan Kirakosyan V. Sergey Nikoghosyan K. Aghasi Hovhannisyan S. Aram Sahakyan A. Vardan Avagyan Sh. Narek Hakobyan A. Eduard Aleksanyan M. Arevik Arestakesyan G. Anush Badalyan O. Norik Grigoryan Ye. Albert Avetisyan E. Nelli Poghosyan Ya. Gohar Avdalyan A. Nora Harutyunyan A. David Arshakyan A. Armine Grigoryan A. Nikolay Dobrovolskiy M. Vladislav Yeganov S. Andranik Margaryan A. Svetlana Margaryan L. Haykanush Martoyan G. Alexandr Melkonyan A. Artashes Sargsyan A. Yurik Sukiasyan Z. Vahan Elbakyan Kh.. Gurgen Elbakyan Ye. Mkrtich Mkrtchyan A. Gevorg Hovhannisyan A. Irina Sinenko G. Khachik Harutyunyan S. Makrui Faroyan G. Volodya Avetisyan S. Silvard Khachatryan T. Nerses Arakelyan S. Samvel Apresyan S. Sargis Beybutyan S. Mazman Grigoryan V. Anahit Galstyan R. Vahan Barseghyan M. Hamayak Janikyan B. Vardan Mkrtchyan G. Gurgen Mkrtchyan V. Lusine Hovsepyan S. Armen Akhperjanyan D. Mikhail Martirosyan P. Zarieta Badeyan M. Anahit Barseghyan G. Violetta Tsameryan V. Ashot Alaverdyan R. Volodya Almastyan S. Ruben Barseghyan G. Armen Kirakosyan Zh. Suren Hovhannisyan S. Murad Avetisyan V. Bagrat Agababyan V. Vardges Mehrabyan N. Gevorg Chobanyan A. Samvel Gevorgyan S. Svetlana Aghayan G. Pyotr Harutyunov I. Hayk Gevorgyan S. Aramayis Grigoryan G. Harutyun Martirosyan A. Armen Nersisyan Sh. Rudolf Gharibyan G. Ashot Grigoryan S. Arayik Nersisyan Z. Leonid Shatakhtsyan A. Yeghishe Elbakyan G. Samvel Abgaryan G. Vardan Aghekyan R. Garnik Mkrtchyan B. Sargis Nazaryan G. Sergey Onsuzyan G. Mikhail Osipyan S. Aram Petrosyan G. Vazgen Sahakyan A. Alina Serobyan S. Lyubov Aghekyan P. Paytsar Harutyunyan L. Susanna Galstyan S. Tereza Grigoryan V. Seda Muradyan B. Zarik Mkhitaryan L Gohar Hovhannisyan G. Hayastan Stepanyan G. Astghik Hunanyan G. Ashot Badeyan V. Aram Bayburdtsyan S. Vachik Yeghiazaryan A. Tariel Musheghyan M. Oleg Sorokin M. Lena Babuchieva V. Fredik Barseghyan V. Arthur Abrahamyan S. Ashot Arshakyan R. Viktor Martirosyan M. Sergey Melikyan A. Meruzhan Muradyan M. Edik Mkhoyan G. Artur Stepanyan S. Marine Hovhannisyan I. Shushik Mkrtumyan R. Aghunik Gigoyan K. Siranush Mesropyan V. Anahit Torosyan A. Hasmik Nersisyan O. Nelli Shakhnazaryan V. Varduhi Ghazanchyan O. Siranush Matinyan E. Ruben Harutyunyan A. Levon Mikaelyan S. Parandzem Papazyan V. Aida Haroyan G. Roza Hakobyan M. Armen Derdzakyan G. Karine Mahtesyan Ts. Eleonora Tameyan V. Zaruhi Asaturyan R. Aghunik Ghazaryan S. Marta Hovhannisyan A. Mesrop Hovhannisyan A. Larisa Ohanyan N. Susanna Abrahamyan S. Marine Hayrapetyan R. Marietta Hakobyan G. Tatyana Sargsyan A.
--- Zaruhi Asaturyan R. Marta Hovhannisyan A.

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