L. Rosta

ORCID: 0000-0003-4517-2386
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About
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Research Areas
  • Nuclear Physics and Applications
  • Liquid Crystal Research Advancements
  • Characterization and Applications of Magnetic Nanoparticles
  • NMR spectroscopy and applications
  • Radiation Detection and Scintillator Technologies
  • Atomic and Subatomic Physics Research
  • Material Dynamics and Properties
  • Nuclear reactor physics and engineering
  • Spectroscopy and Quantum Chemical Studies
  • High-pressure geophysics and materials
  • X-ray Diffraction in Crystallography
  • Cultural Heritage Materials Analysis
  • Surfactants and Colloidal Systems
  • Molecular spectroscopy and chirality
  • Fullerene Chemistry and Applications
  • Photosynthetic Processes and Mechanisms
  • Geomagnetism and Paleomagnetism Studies
  • Physics of Superconductivity and Magnetism
  • Graphene research and applications
  • Carbon Nanotubes in Composites
  • X-ray Spectroscopy and Fluorescence Analysis
  • Advanced NMR Techniques and Applications
  • Quantum, superfluid, helium dynamics
  • Plant and animal studies
  • Electrostatics and Colloid Interactions

HUN-REN Centre for Energy Research
2023-2024

National Healthcare Service Center
2023

HUN-REN Wigner Research Centre for Physics
2013-2020

Budapest Neutron Centre
2002-2020

Institute for Solid State Physics and Optics
2009-2018

Hungarian Academy of Sciences
2007-2017

Musée d'Art et d'Histoire
2016

Romanian Academy
2013

Academy of Romanian Scientists
2013

Eötvös Loránd University
1987-2010

Highly stable and reproducible molecular-colloidal water solutions of C60 fullerenes (FWS) obtained by transferring from an organic solution into aqueous phase with the help ultrasonic treatment are investigated means small-angle neutron scattering (SANS). A polydispersity in size detected particles up to 84 nm is revealed. These slightly anisotropic have a characteristic approximately 70 nm. Along it, there some indications that significant part composes order 1 The contrast variation based...

10.1021/la0361969 article EN Langmuir 2004-04-23

The main aim of this study is to synthesize calcium silicate ceramics that exhibit suitable properties be used for biomedical applications. In the present work, attention was paid understanding processing-structure relationships. A particular effort made clarify identification Ca-O-Si bonds by means spectroscopy. systems were prepared via a sol-gel route, varying chemical compositions, catalyst concentration, and temperature time aging heat treatment. processes phases evolved during...

10.1021/jp1053502 article EN The Journal of Physical Chemistry A 2010-09-09

The earliest known iron artefacts are nine small beads securely dated to circa 3200 BC, from two burials in Gerzeh, northern Egypt. We show that these were made meteoritic iron, and shaped by careful hammering the metal into thin sheets before rolling them tubes. study demonstrates ability of neutron X-ray methods determine nature material even after complete corrosion metal. strung a necklace together with other exotic minerals such as lapis lazuli, gold carnelian, revealing status special...

10.1016/j.jas.2013.06.002 article EN cc-by Journal of Archaeological Science 2013-08-20

A neutron-scattering measurement was performed on pure amorphous Si. The radial distribution function derived from the wide momentum-transfer range spectra. These data are compared to theoretical models in 0--10-A\r{} real-space interval.

10.1103/physrevb.40.8030 article EN Physical review. B, Condensed matter 1989-10-01

10.1016/0021-9797(90)90149-i article EN Journal of Colloid and Interface Science 1990-02-01

In the present study, we determined characteristic repeat distances of photosynthetic membranes in living cyanobacterial and eukaryotic algal cells, intact thylakoid isolated from higher plants with time-resolved small-angle neutron scattering. This non-invasive technique reveals light-induced reversible reorganizations seconds-to-minutes time scale, which appear to be associated functional changes vivo.

10.1042/bj20110180 article EN Biochemical Journal 2011-05-13

A neutron-diffraction measurement in the 0--23 A${\mathrm{\r{}}}^{\mathrm{\ensuremath{-}}1}$ inverse space interval was performed on pure amorphous Si. With structure factor obtained experimentally three-dimensional models were constructed by reverse Monte Carlo simulation for determination of atomic a-Si. The radial distribution function calculated directly from large-scale and derived traditionally these wide range spectra, as well.

10.1103/physrevb.48.7685 article EN Physical review. B, Condensed matter 1993-09-01

The Multi-Blade is a Boron-10-based gaseous detector introduced to face the challenge arising in neutron reflectometry at pulsed sources. Neutron reflectometers are most challenging instruments terms of instantaneous counting rate and spatial resolution. This has been designed cope with requirements set for upcoming European Spallation Source (ESS) Sweden. Based on previous results obtained Institut Laue-Langevin (ILL) France, an improved demonstrator built ESS tested Budapest Centre (BNC)...

10.1088/1748-0221/12/03/p03013 article EN cc-by Journal of Instrumentation 2017-03-15

The gamma irradiation induced aging of thermoplastic polymer Estane 5703 in air and water environments was studied by small-angle neutron scattering (SANS), Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), X-ray diffraction (XRD). degree phase mixing increased after irradiation, accompanied the increase domain distance decrease size. hard from 9.8 to 11.2 nm 14.4 for samples irradiated with a dose up 500 kGy, respectively. GPC results indicated progressive...

10.3390/polym7091481 article EN Polymers 2015-09-15

Various uses of ferrofluids for technical applications continuously raise the interest in improvement and optimization preparation methods. This paper deals with finely granulated magnetite particles coated oleic acid hydrocarbon suspensions following either chemical co-precipitation from iron salt precursors or wet milling micron size powder goal to compare benefits disadvantages each method. Microstructural measurements showed that both methods gave similar particle 10-15 nm. Higher...

10.2298/jsc140313053a article EN Journal of the Serbian Chemical Society 2014-05-21

The microstructure of compression molded Estane 5703 films exposed to 11%, 45%, and 80% relative humidity 70 °C for 1 2 months has been studied by small-angle neutron scattering (SANS), Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), differential scanning calorimetry (DSC). Scattering data indicated increase the interdomain distance domain size with a higher longer aging time. GPC showed progressive shortening polyurethane chains increasing caused drop...

10.3390/polym8050197 article EN Polymers 2016-05-20
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