Sahar Darvish‐Molla, Alan J. Spurway, Mike Sattarivand,
... image guidance system for stereotactic treatment applications. The Spektr toolkit was utilized to simulate the spectral and imaging characterization of the system. Since Spektr only simulates the primary beam (ignoring scatter), a ... To ensure proper performance of both simulation models, Spektr and MC data were compared to the measured ... energies were measured using a calibrated RaySafe detector. Spektr and MC HVLs were calculated and compared to ... detector and scatter effect were determined using both Spektr simulation and experimental measurements. The measured and simulated ...
Tópico(s): Advanced X-ray and CT Imaging
2020 - IOP Publishing | Physics in Medicine and Biology
Joshua Punnoose, Jennifer Xu, Alejandro Sisniega, Wojciech Zbijewski, Jeffrey H. Siewerdsen,
Purpose: A computational toolkit (spektr 3.0) has been developed to calculate x-ray spectra based on the tungsten anode spectral model using interpolating cubic ... match calculated beam quality with measurements. Methods: The spektr code generates x-ray spectra (photons/mm2/mAs ... coefficient of 0.98. Conclusions: The computational toolkit, spektr, has been updated to version 3.0, validated ... as open source code. Video tutorials for the spektr function library, UI, and optimization tool are available.
Tópico(s): Digital Radiography and Breast Imaging
2016 - Wiley | Medical Physics
... A. S. Šaškov und N. J. Kobozeb, Opt. spektr. 12, 635 (1962). 126 E. Mollwo, Z. Phys. ... V. L. Levšin und P. A. Pipinis, Opt. spektr. 12, 259 (1962). 136 A. R. Krasnaja, B. ... L. S. Revzin und V. Ka. Jaskolko, Opt. spektr. 12, 526 (1962). 137 J. Kramer, Z. phys. ... 1960 (S. 214). 156 P. A. Pipinis, Opt. spektr. 10, 676 (1961); Lit. fiz. sb. 1, 143 ( ... Ju. E. Perlin und M. E. Palistrant, Opt. spektr. 9, 608 (1960). 162 I. M. Dykman, Zh. ...
Tópico(s): Advanced Chemical Physics Studies
1963 - Wiley | physica status solidi (b)
G. Gogoberidze, Y. Voitenko, G. Z. Machabeli,
... scales and compare with recent measurements of the Spektr-R spacecraft. An apparent contradiction is found between the temperature spectra derived from the Spektr-R data and the temperature spectra predicted theoretically. ... temperature fluctuations can be correctly estimated from the Spektr-R data only if the mean temperature is ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2018 - Oxford University Press | Monthly Notices of the Royal Astronomical Society
Michael D. Johnson, Y. Y. Kovalev, Mikhail Lisakov, P. A. Voitsik, C. R. Gwinn, G. Bruni,
... Sgr A*. These observations used the space telescope Spektr-R of the RadioAstron project together with a ... observing at a wavelength of 1.35 cm. Spektr-R provided baselines up to 3.9 times ...
Tópico(s): Pulsars and Gravitational Waves Research
2021 - IOP Publishing | The Astrophysical Journal Letters
М. О. Рязанцева, V.P. Budaev, Liudmila Rakhmanova, Georgy Zastenker, Yu. I. Yermolaev, I. Lodkina, Jana Šafránková, Zdeněk Němeček, Lubomír Přech,
... situ high-resolution measurements of the Russian mission Spektr-R. We analyse the variability of the transition ...
Tópico(s): Astro and Planetary Science
2017 - Cambridge University Press | Journal of Plasma Physics
Liudmila Rakhmanova, М. О. Рязанцева, G. N. Zastenker, Yu. I. Yermolaev,
... study of the flank magnetosheath crossing by the Spektr-R satellite. High time resolution measurements of the ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2017 - Cambridge University Press | Journal of Plasma Physics
A. A. Boyarchuk, Б. М. Шустов, И. С. Саванов, Mikhail Sachkov, Д. В. Бисикало, L. Mashonkina, D. S. Wiebe, V. I. Shematovich, Yu. A. Shchekinov, T. Ryabchikova, Н. Н. Чугай, P. B. Ivanov, Н. В. Вощинников, Ana I. Gómez de Castro, С. А. Ламзин, N. Piskunov, T. R. Ayres, K. G. Strassmeier, S Morgan Jeffrey, K. Zwintz, D. Shulyak, Jean‐Claude Gérard, B. Hubert, L. Fossati, H. Lämmer, K. Werner, А. Г. Жилкин, П. В. Кайгородов, С. Г. Сичевский, S. Ustamuich, E. Kanev, E. Yu. Kilpio,
... also considered. The well advanced, international, Russian-led Spektr-UV (World Space Observatory—Ultraviolet) project is described ...
Tópico(s): Astrophysics and Cosmic Phenomena
2016 - Pleiades Publishing | Astronomy Reports
... of the cellular radiosensitivity.Meta: vyvchyty chastotu i spektr aberatsiy̆ khromosom v limfotsytakh peryferychnoï krovi liudyny zalezhno ... v S- i G2-stadiï osnovnyy̆ vnesok u spektr radiatsiy̆no-indukovanykh abe- ratsiy̆ khromosom vnosiat' deletsiï, riven' ...
Tópico(s): Effects of Radiation Exposure
2019 - | Проблеми радіаційної медицини та радіобіології = Problems of Radiation Medicine and Radiobiology
A. A. Kaminskiĭ, Yu. K. Voron’ko, В. В. Осико,
... V. Osiko, and V. T. Udovenchik, Zh. prikl. Spektr. 6, No. 1 (1967). 10 A. A. Kaminskii ... A. Kaminskii and L. S. Kornienko, Zh. priki. Spektr. 2, 87 (1965). 13 A. A. Kaminskii, L. ...
Tópico(s): Atmospheric Ozone and Climate
1967 - Wiley | physica status solidi (b)
A.V. Yusov, S.A. Kozlov, E.A. Ustinova, Mikhail Arkhipov, E. A. Kostrov, А. В. Смирнов, I. V. Kuznetsov, Maria Mansfeld, Nickolay Tyatushkin, Ф. Н. Ковалев, V. F. Vdovin,
... on the cryogenic main Mirror of Millimetron observatory (Spektr-M space mission) have been evaluated. • Mathematical model ... control system having in view the Millimetron observatory (Spektr-M space mission). Having defined the reference precision, ...
Tópico(s): Adaptive optics and wavefront sensing
2021 - Elsevier BV | Cryogenics
Antonio C. Rodriguez, S. R. Kulkarni, Thomas A. Prince, Paula Szkody, Kevin B. Burdge, Ilaria Caiazzo, Jan van Roestel, Zachary P. Vanderbosch, Kareem El-Badry, Eric C. Bellm, B. T. Gänsicke, M. J. Graham, A. Mahabal, Frank J. Masci, P. Mróz, Reed Riddle, B. Rusholme,
... of outburst behavior. The eROSITA telescope aboard the Spektr-RG (SRG) mission is conducting an all-sky ...
Tópico(s): Astrophysics and Cosmic Phenomena
2023 - IOP Publishing | The Astrophysical Journal
... to major space-borne observatories (HST, Gaia, and Spektr-RG). I make use of updated 3D maps ...
Tópico(s): Astrophysical Phenomena and Observations
2022 - Elsevier BV | Comptes Rendus Physique
Edrine Damulira, Muhammad Nur Salihin Yusoff, Ahmad Omar, Nur Hartini Mohd Taib, Naser M. Ahmed,
... spectra and energies were simulated using Matlab-based Spektr functions. Transducer performance analysis was based on signal ...
Tópico(s): Digital Radiography and Breast Imaging
2021 - Elsevier BV | Applied Radiation and Isotopes
Liudmila Rakhmanova, М. О. Рязанцева, Georgy Zastenker,
... cascade based on direct plasma measurements by the Spektr-R spacecraft in the magnetosheath. Recent results on ...
Tópico(s): Astro and Planetary Science
2021 - Frontiers Media | Frontiers in Astronomy and Space Sciences
Tópico(s): Astrophysics and Cosmic Phenomena
2021 - Springer Science+Business Media | Astrophysics
M. Pavlinsky, A. Tkachenko, V. Levin, N. Alexandrovich, V. Arefiev, V. Babyshkin, O. Batanov, Yu. Bodnar, A. V. Bogomolov, A. E. Bubnov, M. Buntov, R. Burenin, И. В. Человеков, Chien‐Ting Chen, T. Drozdova, Steven R. Ehlert, E. Filippova, Sergey Frolov, D. Gamkov, S. G. Garanin, M. Garín, A. Glushenko, A. Gorelov, С. А. Гребенев, S. Grigorovich, P. Gureev, Е. Гурова, R. Ilkaev, I. Katasonov, A. Krivchenko, Roman Krivonos, Fedor Korotkov, M. Kudelin, Maria Kuznetsova, V. P. Lazarchuk, I. Lomakin, I. Lapshov, V. Lipilin, A. Lutovinov, I. A. Mereminskiy, S. Molkov, В. Н. Назаров, В. Н. Олейников, E. Pikalov, Brian D. Ramsey, I. Roiz, A. Rotin, A. V. Ryadov, E. Sankin, S. Sazonov, D. Sedov, А. Н. Семена, N. Semena, D. Serbinov, A. E. Shirshakov, A. E. Shtykovsky, А. А. Швецов, R. Sunyaev, Douglas A. Swartz, V. Tambov, V. Voron, A. Yaskovich,
... with grazing incidence imaging optics on board the Spektr-Roentgen-Gamma (SRG) observatory. The SRG observatory is ...
Tópico(s): Astrophysics and Cosmic Phenomena
2021 - EDP Sciences | Astronomy and Astrophysics
Zdeněk Němeček, Tereza Ďurovcová, Jana Šafránková, J. D. Richardson, Jiřı́ Šimůnek, M. L. Stevens,
... Helios 1 and 2, Wind, Advanced Composition Explorer, Spektr- R , Acceleration, Reconnection, Turbulence and Electrodynamics of the ...
Tópico(s): Astro and Planetary Science
2020 - IOP Publishing | The Astrophysical Journal Letters
L. Vega-García, A. P. Lobanov, M. Perucho, G. Bruni, E. Ros, J. M. Anderson, I. Agudo, Roger J. Davis, José L. Gómez, Y. Y. Kovalev, T. P. Krichbaum, Mikhail Lisakov, T. Savolainen, F. K. Schinzel, J. A. Zensus,
... using a global VLBI array and the antenna Spektr-R of the RadioAstron mission of the Russian ...
Tópico(s): Gamma-ray bursts and supernovae
2020 - EDP Sciences | Astronomy and Astrophysics
Liudmila Rakhmanova, М. О. Рязанцева, Georgy Zastenker, Yu. I. Yermolaev, И. Г. Лодкина,
... high-resolution measurements of plasma parameters by the Spektr-R spacecraft and magnetic field data by the ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2020 - IOP Publishing | The Astrophysical Journal
Jana Šafránková, Zdeněk Němeček, F. Němec, Daniel Verscharen, Christopher H. K. Chen, Tereza Ďurovcová, М. О. Рязанцева,
... wind turbulence using high-resolution data from the Spektr-R spacecraft. The ratio of perpendicular to parallel ...
Tópico(s): Astro and Planetary Science
2019 - IOP Publishing | The Astrophysical Journal
Liudmila Rakhmanova, М. О. Рязанцева, Georgy Zastenker, М. И. Веригин,
... turbulence are examined observationally with the help of Spektr‐R measurements in the Earth's magnetosheath. The ...
Tópico(s): Atmospheric Ozone and Climate
2018 - Wiley | Journal of Geophysical Research Space Physics
Wesley Bowman, James L. Robar, Mike Sattarivand,
... factors to obtain bone subtracted dual‐energy images. Spektr simulations were used to identify material in the ...
Tópico(s): Medical Imaging Techniques and Applications
2017 - Wiley | Medical Physics
Alexander Pitňa, Jana Šafránková, Zdeněk Němeček, Luca Franci,
... 31 ms) resolution plasma data provided by the Spektr-R spacecraft. On the other hand, a statistical ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2017 - IOP Publishing | The Astrophysical Journal
Kai Yang, Xinhua Li, Xiaobin Xu, Bob Liu,
... filters were determined by analytical calculation using the Spektr Matlab software package to match the measured transmission ...
Tópico(s): Medical Imaging Techniques and Applications
2017 - Wiley | Medical Physics
G. Bruni, José L. Gómez, C. Casadio, A. P. Lobanov, Y. Y. Kovalev, K. V. Sokolovsky, Mikhail Lisakov, U. Bach, Alan P. Marscher, Svetlana G. Jorstad, J. M. Anderson, T. P. Krichbaum, T. Savolainen, L. Vega-García, Antonio Fuentes, J. A. Zensus, A. Alberdi, S. S. Lee, Ru-Sen Lu, M. Á. Pérez-Torres, E. Ros,
... 10 m orbiting radio telescope mounted on the Spektr-R satellite, launched in 2011, performing Space Very ...
Tópico(s): Radio Astronomy Observations and Technology
2017 - EDP Sciences | Astronomy and Astrophysics
Jana Šafránková, Zdeněk Němeček, F. Němec, Lubomír Přech, Christopher H. K. Chen, G. N. Zastenker,
... Monitor of the Solar Wind on board the Spektr-R spacecraft that are limited to 570 km ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2016 - IOP Publishing | The Astrophysical Journal
Н. Н. Беседнова, И. Д. Макаренкова, T. N. Zvyagintseva, Т. И. Имбс, L Somova, Т. С. Запорожец,
... mimikrii i rezistentnost'iu k antivirusnym preparatam. Shirokiĭ spektr fiziologicheskogo deĭstviia sul'fatirovannykh polisakharidov – agonistov retseptorov kletok ...
Tópico(s): Biochemical Acid Research Studies
2016 - | Biomeditsinskaya Khimiya
C. H. K. Chen, L. Sorriso‐Valvo, Jana Šafránková, Zdeněk Němeček,
... high time resolution Faraday cup measurements from the Spektr-R spacecraft. It was found that the probability ...
Tópico(s): Ionosphere and magnetosphere dynamics
2014 - IOP Publishing | The Astrophysical Journal Letters
Igor Bychkov, V. A. Voronov, Э. И. Дружинин, R. I. Kozlov, S. A. Ul’yanov, B. B. Belyaev, P. P. Telepnev, A. I. Ul’yashin,
Tópico(s): Calibration and Measurement Techniques
2014 - Pleiades Publishing | Cosmic Research