Pseudospark switches for the power supply circuits of pulsed lasers

A family of sealed-off low-pressure spark gap switches developed at the Institute of High Current Electronics (Tomsk) and at the Plasma Scientific Research Institute (Ryazan) with participation of researchers from the Physical Institute of the University of Erlangen (Germany) is described. The devices are of cermet construction, are capable of switching pulsed currents over wide ranges of amplitudes and durations, and have a number of unique characteristics. The principle of operation of the spark gap switches is described and their designs are given. The triggering circuits of the switches are considered. Institute of High-Current Electronics, Siberian Division of the Russian Academy of Sciences. Plazma Scientific Research Institute of Gas-Discharge Devices. Physical Institute of the University of Erlangen. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 5, pp. 97–105, April, 2000.     

Synchrotron Radiation and Neutrons in Art and Archaeology (SR2A) Conference 2016

The seventh edition of the international conference on Synchrotron Radiation and Neutrons in Art and Archaeology (SR2A 2016) was held September 6–8, 2016, at the Stock Exchange Room of The Art Institute of Chicago, USA. The conference was jointly organized by seven research laboratories and museums; more precisely, the Center for Scientific Studies in the Arts (NU-ACCESS) of Northwestern University, the Art Institute of Chicago, the Field Museum Chicago, the Advanced Photon Source (APS), the Oriental Institute Chicago, the Detroit Institute of Arts, and the Indianapolis Museum of Art, in close interaction with the SR2A International Committee. Nine years after the organization of the first SR2A conference in Grenoble, the Art Institute hosted the second biennial interdisciplinary meeting in the US.     

Analogy between mechanics and optics

Division of Theoretical Physics, Lebedev Physics Institute. Translated from Preprint 114, Lebedev Physics Institute, Moscow, 1990.     

Pulse-periodic-pumped small CO lasers

Optics Division, Lebedev Institute. Translated from Preprint No. 61, Physics Institute, Russian Academy of Sciences, Moscow, 1991.     

Correlated states of a quantum oscillator and of a quantum chain of oscillators with a δ bump in frequency

Quantum Radiophysics Division, Lebedev Physics Institute. Translated from Preprint No. 139 of the Lebedev Physics Institute, Russian Academy of Sciences, Moscow, 1991.     

Theoretical and numerical analysis of stresses in a laser hardening model

Kuibyshev Branch of the Lebedev Physics Institute. Translated from Preprint No. 167 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1990.     

USE of negative feedback to suppress injection-laser power fluctuation

P. N. Lebedev Physics Institute. Translated from Preprint No. 215 of the Lebedev Institute of Physics, Academy of Sciences of the USSR, Moscow, 1989.     

Coupling an injection laser to a single-mode optical fiberguide with the aid of a microlens in a matching-module system

Optoelectronics Laboratory, Lebedev Physics Institute. Translated from Preprint No. 192 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1989.     

Review of methods of calculating the field in optical cavities and choice of calculation method for free-flow chemical lasers

Optics Division, Lebedev Physics Institute. Translated from Preprint No. 127 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1990.     

Analysis of low-frequency fluctuation of the radiation power of injection lasers

Quantum Radiophysics Division, Lebedev Physics Institute, Academy of Sciences of the USSR. Translated from Preprint No. 106 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1989.     

Squeezed states of electromagnetic field

Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow. Translated from Preprint No. 232 of the Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow, 1988.     

Development of High-Power Long-Pulse Submillimeter-Wave Free-Electron Lasers on the Basis of the Linear Induction Accelerator Complex

Radiophysics and Quantum Electronics - The high-power long-pulse submillimeter-wave free-electron laser (FEL) is developed jointly by the Institute of Nuclear Physics and the Institute of Applied...     

Martin J. Klein: From Physicist to Historian

To his friends, colleagues, and students, Martin Klein was a gentle and modest man of extraordinary integrity whose stellar accomplishments garnered him many honors. I sketch his life and career, in which he transformed himself from a theoretical physicist at Columbia University, the Massachusetts Institute of Technology, and the Case Institute of Technology into a historian of physics while on leave at the Dublin Institute for Advanced Study and the University of Leiden and then pursued this field full time at Yale University.     

Memorable Years for Synchrotron Radiation at the Institute of Nuclear Physics in Novosibirsk

In the early 1970s, the Institute of Nuclear Physics (INP) in Novosibirsk was a unique place in the world of accelerator physics. There were three operational electron-positron storage rings at the institution. All together, they covered beam operational energies from 200 MeV up to 2.2 GeV. It was not a big surprise for the developers of these state-of-the-art machines when the first users of synchrotron radiation showed up at the doorsteps of the Institute of Nuclear Physics, eager to take advantage of such unique radiation sources. And how very unique they were! Compared with several already relatively well-established operational synchrotrons around the world, such as DESY in Hamburg, NINA in Darsbury, and three synchrotrons in the Soviet Union—one at the Physical Institute in Pakhra, another at the Tomsk Polytechnical Institute, and a third at the Erevan Physical Institute—the storage ring sources provided much more stable and brighter radiation beams. Several storage rings built at that time in locations such as Japan, the US, and France were also on the verge of becoming available for synchrotron radiation users.     

Dynamic characteristics of an adaptive correlation autocompensator in the presence of nonstationary interference

Khar'kov Polytechnic Institute. Radioastronomy Institute, Academy of Sciences of the Ukrainian SSR. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 32, No. 3, pp. 314–320, March, 1989.     

Effectiveness of an adaptive compensator with correlation feedback with fluctuations of the angle of arrival of interference

Kharkov Polytechnical Institute. Institute of Radio Astronomy, Academy of Sciences of the Ukrainian SSR. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 32, No. 2, pp. 199–204, February, 1989.     

Occultation of the plasma near the sun and the speed of the solar wind: Fluctuations in the frequency and phase of radio waves at two separated points

Radiotechnical and Electronics Institute, Academy of Sciences of the USSR. Siberian Physicotechnical Institute at Tomsk University. Translated from Izvestiya Vysshikh Uchebykh Zavedenii, Radiofizika, Vol. 32, No. 5, pp. 531–537, May, 1989.     

Transformation of a single-pulse echo into a two-pulse one upon change in excitation pulse form

Physics Institute, Siberian Branch, Russian Academy of Sciences. Applied Physics Problems Scientific-Research Institute, Belorussian University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 35, No. 1, pp. 96–98, January, 1992.     

Visualization activities in Indonesia

Though it is still in its initial state, visualization techniques as one of the supportive components in the industrial transformation as well as a research tool have, however, gained some supports in universities and research institutes. This paper presents a review of activities related to the visualization research and application in universities and research institutes in Indonesia, namely at the Center for Applied Physics — Indonesia Institute for Sciences (P3FT-LIPI), University of Indonesia (UI), Institute of Technology Surabaya (ITS), Institute of Technology Bandung (ITB), and Aero-Gas Dynamics and Vibration Laboratory (LAGG-BPP-Teknologi).