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Our student defended master degree thesis

Posted by admin on Jun 24, 2017

Our student Anush Badalyan defended master degree thesis on “Investigations of electronic structures of optical materials using spectroscopy in the visible region of the spectrum”. Here is full thesis in Russian language: Anush Badalyan...

Russian Basalt.Today web portal about our invention

Posted by admin on Apr 25, 2017

Basalt.Today – independent information and news web-portal, that publishes popular science articles, dedicated to manufacturing technologies, application, and research in the field of products produced from basalt raw materials and basalt-based composites recently published an article about our inventions. The link to the original article is given below: Armenia used super-thin basalt fiber to develop a highly efficient filtration system for nuclear power...

A new Cyclotron arrived on 18 March, 2015

Posted by admin on Dec 24, 2015

The cyclotron is purchased from a Belgian Company (IBA) and the plan is to start installation of the new 18 MeV cyclotron in January of 2015. The cyclotron will be placed in a newly constructed, and specially designed building on the grounds of the laboratory. The new cyclotron, the Cyclone 18, is one of the most modern cyclotrons produced today in the world. The cyclotron will produce proton beams of up to 18 MeV energies. APRD plans to conduct a series of experiments concerning radiation phenomena in 18 MeV proton irradiated silicon single...

Optics and Spectroscopy (240/5) Group Publications

Posted by admin on Dec 23, 2015

Eduard Aleksanyan, Vachagan Harutyunyan, Margarita Kink, Rein Kink, Marco Kirma, Yuri Maksimov, Vladimir N. Makhov, Tatiana V. Ouvarova. Upconverted 5d–4f luminescence from Er3+ and Nd3+ ions doped into fluoride hosts excited by ArF and KrFexcimer lasers. Optics Communications, Volue283, Issue 1, 2010, 49 – 53. A.Sahakyan. The vortex-vortex interaction in YBa2Cu3Ox superconducting ceramics for a low-frequency magnetic field. DNAN RA, Physics (2011), v.111, №3, p.p. 259-264. Eduard Aleksanyan, Marco Kirm, Sebastian Vielhauer, VachaganHarutyunyan. Investigation of Luminescence Processes in YAG Single Crystals Irradiated by 50 MeV Electron Beam.Radiation Measurements 56 (2013) 54-57. H. N. Yeritsyan, A. A. Sahakyan, V. V. Harutyunyan, N. E. Grigoryan and V. A. Sahakyan. Irradiation Enhancement of Electrical Properties of Passive Impurities in Silicon Crystals. Physical Science International Journal 4(9): 1225-1234, 2014. (USA). www.sciencedomain.org. Hrant Yeritsyan, Norik Grigoryan, Vachagan Harutyunyan, Eleonora Hakhverdyan, Valeriy Baghdasaryan. Long-Time Relaxation and Residual Conductivity in GaP Irradiated by High-Energy Electrons. Journal of Modern Physics, USA, 5 No.1, January 2014, pp. 51-54. DOI:10.4236/jmp.2014.51008. Nagirnyi, E. Aleksanyan, G. Corradi, M. Danilkin, E. Feldbach, M. Kerikmäe, A. Kotlov, A. Lust, K. Polgár, A. Ratas, I. Romet, V. Seeman. Recombination luminescence in Li2B4O7 doped with manganese and copper. Radiation Measurements 56 (2013) 192-195. V. Vasil’eva, D.A. Spassky, I.V. Randoshkin, E.M. Aleksanyan, S. Vielhauer, V.O. Sokolov, V.G. Plotnichenko, V.N. Kolobanov, A.V. Khakhalin. Optical spectroscopy of Ce3+ ions in Gd3(AlxGa1-x)5O12 epitaxial films.Materials Research Bulletin48 (11) , pp. 4687-4692. 2013. N. Yeritsyan, K., A.A. Sahakyan, S.K. Nikoghosyan, V.V. Harutunyan, Sh. Ohanyan, V.Sh. Avagyan, N. E. Grigoryan, E. A. Hakhverdyan. Effect of Electron and Ultraviolet Radiations and Temperature on n-Si Conductivity. Journal of NASA, Spacecraft and Rockets, v.48, #1, pp. 34-37, 2011. Алексанян, Э.М. ВУФлюминесценцияионовEr3+вкристаллахLiYF4 иBaY2F8. Известия НАН Армении. Физика // Journal of Contemporary Physics, 44(2), 2009, 113 – 118. M. Aleksanyan. VUV Luminescence of Er3+ Ionsin LiYF4 and BaY2F8 Crystals. Journal of Contemporary Physics (Armenian Academy of Sciences), 2009, Vol. 44, No. 2, pp. 75–79. Eduard Aleksanyan, VachaganHarutunyan, RadikKostanyan, Eduard Feldbach, Marco Kirm, PeeterLiblik, Vladimir N. Makhov, Sebastian Vielhauer. 5d–4f luminescence of Er3+ in YAG:Er3+. Optical Materials, Volume 31, Issue 6, 2009, 1038 – 1041. A.Sahakyan. Dynamics of Josephson vortexes in YBaCuO HTSC for linearly varying magnetic fields. Vestnik-75 of the State Engineering University of Armenia. Collection of scientific and methodical articles, part II, (2008) p.p.740-743. Aram A. Sahakyan, Sergei K. Nikoghosyan, Hrant N. Yeritsyan, Electron irradiation effects in doped high temperature superconductors YBa2Cu3-xMxOy (M = Fe, Ni; x=0; x=0:01), Central European Journal of Physics 6(4) • 2008 • 797-801. N. Makhov, A. Lushchik, Ch.B. Lushchik, M. Kirm, E. Vasil’chenko, S. Vielhauer, V.V. Harutunyan, E. Aleksanyan. Luminescence and radiation defects in electron-irradiated Al2O3 and Al2O3:Cr. Nuclear Instruments & Methods in Physics Research B, Volume 266, Issues 12-13, 2008, 2949 – 2952. LixinNing, Peter A. Tanner, Vachagan V. Harutyunyan, Eduard Aleksanyan, Vladimir N. Makhov, Marco Kirm. Luminescence and excitation spectra of YAG:Nd3+ excited by synchrotron radiation. Journal of Luminescence, Volume 127, Issue 2, 2007, 397 – 403. A.Sahakyan, S.K.Nikoghosyan, G.N.Yeritsyan, “Frequency dependence of the intergranular magnetic flux penetration...