A5039138121- Ionosphere and magnetosphere dynamics
- Dust and Plasma Wave Phenomena
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
- Earthquake Detection and Analysis
- Planetary Science and Exploration
- Analytical chemistry methods development
- Geomagnetism and Paleomagnetism Studies
- Diamond and Carbon-based Materials Research
- Atomic and Molecular Physics
- Fullerene Chemistry and Applications
- Laser-induced spectroscopy and plasma
- Semiconductor materials and devices
- Plasma Diagnostics and Applications
- Catalytic Processes in Materials Science
- Mass Spectrometry Techniques and Applications
- Lightning and Electromagnetic Phenomena
- Metal and Thin Film Mechanics
- Advanced Chemical Physics Studies
- Ocular and Laser Science Research
- Aeolian processes and effects
- Atmospheric and Environmental Gas Dynamics
- Microfluidic and Bio-sensing Technologies
- Adaptive optics and wavefront sensing
- Carbon Nanotubes in Composites
European X-Ray Free-Electron Laser
2018
IS Instruments (United Kingdom)
2013
Charles University
1994-2013
Technical University of Munich
1993-2005
Chemnitz University of Technology
2001-2005
Max Planck Institute for Nuclear Physics
1993-1998
The Solar Orbiter mission seeks to make connections between the physical processes occurring at Sun or in solar corona and nature of wind created by those which is subsequently observed spacecraft. also targets itself during its journey from source To meet specific science goals, will be equipped with both remote-sensing in-situ instruments unprecedented measurements atmosphere inner heliosphere. A crucial set provided Wind Analyser (SWA) suite instruments. This consists an Electron System...
This paper deals with the influence of experimental conditions on properties melamine formaldehyde resin particles. Motivation for this study was fact that many laboratories and experimenters use these particles as samples dust plasma investigations. We have found mass grains decreases during long-time exposure in vacuum. decrease proceeds much faster if temperature is increased.
The present paper reviews our latest, and brings several new, results on charging of dust grains various materials sizes. Charging processes in space their influence the dynamics are analyzed laboratory simulations secondary emission, field ion electron emissions, sputtering. Single micrometre-sized grain clusters stored a hyperbolic quadrupole under ultra-high vacuum conditions for long time periods. charge state its evolution recorded while is exposed to or beams energies fluxes. emission...
We have studied small carbon molecules using a matrix-isolation technique. Our experimental setup is described in detail. The clusters were produced by evaporating graphite and trapping the carbon-vapor solid argon, where molecular growth could be induced controlled matrix annealing. To identify molecules, absorption spectroscopy ultraviolet (UV)-visible infrared (IR) spectral ranges was applied. Additional characterization of excited ground states obtained from emission excitation spectra....
A new instrument has been developed which combines a rf ring electrode trap and time-of-flight mass spectrometer (TOF-MS). The wide field free storage volume of such enables the study low temperature ion-molecule collisions; however it is not straightforward to match nonlocalized ion cloud TOF-MS. For obtaining sufficient resolution, special pulse sequence transfer ions from whole small region in vicinity exit electrode. Additional compression achieved via buffer gas relaxation prior...
In this article, we present a modern compact rf or ac power generator that uses resonant driving scheme without the necessity for any matching device. The developed unit also does not need expensive high voltage supply generating output voltages in range of some 100V typically required function trapping devices. efficiency allows long-term operation at powers around 50W performance losses. frequency device is determined by transformer. It can be varied from megahertz down to kilohertz...
We report on a Paul-trap system with large access angles that allows positioning of fully isolated micrometer-scale particles micrometer precision as targets in high-intensity laser-plasma interactions. This paper summarizes theoretical and experimental concepts the apparatus well supporting measurements were performed for trapping process single particles.
For the synthesis of high-quality thin films, ion-beam assisted deposition (IBAD) is a frequently used technique providing precise control over several substantial film properties. IBAD typically relies on use broad-beam ion source. Such sources suffer from limitation that they deliver blend ions with different masses, each them possessing certain distribution kinetic energy. In this paper, compact experimental setup presented enables separate mass and energy in region hyperthermal energies...
Investigations of charging processes on a single dust grain under controlled conditions in laboratory experiments are the unique way to understand behavior grains complex plasma (in space, laboratory, or technological applications). An electrodynamic trap is often utilized for both holding and continuously measuring its charge-to-mass ratio. We propose modified design linear quadrupole with electrodes split into two parts; each them being supplied by designated source. The paper presents...
The HEliospheric pioNeer for sOlar and interplanetary threats defeNce (HENON) mission funded by the Italian Space Agency has recently advanced to implementation (Phase C). HENON 12U cubesat is expected reach a Distant Retrograde Orbit (DRO) of Sun–Earth system before end this decade. For several months it will stay about ≈ 0.1 AU in front Earth, providing thus unique vantage point in-situ solar wind monitoring allowing send space weather alerts hours related causal...
Dust grains immersed into a low-temperature plasma are charged negatively because the electron attachment dominates other charging processes. However, increasing energy of impinging electrons leads to increase yield secondary emission. When this exceeds unity, grain becomes positively. Previous laboratory experiments with beams have shown that surface potential large follows roughly an dependence emission yield. It means reaches its maximum for hundreds electronvolts and then decreases....
Composite films such as metal/hard carbon have been investigated for several years. Two main deposition techniques, RF diode (metal/a-C:H) and DC magnetron (metal/C:H) sputtering applied. This paper considers Ag/a-C:H or C:H prepared in unbalanced balanced modes. The performance of the electromagnetron is briefly described. structure changes their optical transmission with time (aging) are discussed.