Results 61 to 70 of about 9,873 (244)

Modulation of radio frequency signals by ULF waves [PDF]

, 2007
The ionospheric plasma is continually perturbed by ultra-low frequency (ULF; 1–100 mHz) plasma waves that are incident from the magnetosphere.
C. L. Waters, D. M. Wright, M. D. Sciffer, P. Ponomarenko, T. K. Yeoman   +4 more
core   +7 more sources

A high dynamic Micro Strips Ionization Chamber featuring Embedded Multi DSP Processing

, 2004
An X-ray detector will be presented that is the combination of a segmented ionization chamber featuring one-dimensional spatial resolution integrated with an intelligent ADC front-end, multi DSP processing and embedded PC platform.
Carrato, Sergio, Menk, Ralf H., Voltolina, Francesco   +2 more
core   +1 more source

A first investigation of accuracy, precision and sensitivity of phase-based x-ray dark-field imaging [PDF]

, 2016
In the last two decades, x-ray phase contrast imaging (XPCI) has attracted attention as a potentially significant improvement over widespread and established x-ray imaging.
Astolfo, A, Endrizzi, M, Kallon, G, Millard, T, Olivo, A, Vittoria, FA   +5 more
core   +1 more source

Development of a two-dimensional virtual pixel X-ray imaging detector for time-resolved structure research

, 2003
An interpolating two-dimensional X-ray imaging detector based on a single photon counter with gas amplification by GEM (gas electron multiplier) structures is presented.
Amenitsch, Heinz, Bernstorff, Sigrid, Besch, Hans-Juergen, Martoiu, Sorin, Menk, Ralf-Hendrik, Nurdan, Kivanc, Orthen, Andre, Rappolt, Michael, Wagner, Hendrik, Walenta, Albert Heinrich, Werthenbach, Ulrich   +10 more
core   +1 more source

Shared Floods, Shared Lessons: An Impact Chain and Metrics‐Based Cross‐Country Analysis of the 2021 Floods as a Blueprint for Improved Disaster Risk Management

Earth's Future, Volume 14, Issue 1, January 2026.
Abstract This study employs a novel application of Impact Chains combined with tailored metrics to conduct a cross‐country comparative analysis of the same hazard event. This is a research approach currently absent from the literature, yet essential for developing transferable Disaster Risk Management (DRM) lessons.
Andra‐Cosmina Albulescu, Iuliana Armaş, Marleen De Ruiter, Tristian Stolte, Thijs Endendijk   +4 more
wiley   +1 more source

Long-term monitoring of the internal energy distribution of isolated cluster systems

, 2018
A method is presented to monitor the internal energy distribution of cluster anions via delayed electron detachment by pulsed photoexcitation and demonstrated on Co$_4{}^-$ in an electrostatic ion beam trap.
Blaum, Klaus, Breitenfeldt, Christian, George, Sebastian, Guzmán-Ramírez, Gregorio, Göck, Jürgen, Karthein, Jonas, Kolling, Thomas, Lange, Michael, Menk, Sebastian, Meyer, Christian, Mohrbach, Jennifer, Niedner-Schatteburg, Gereon, Schwalm, Dirk, Schweikhard, Lutz, Wolf, Andreas   +14 more
core   +1 more source

Edge-illumination X-ray dark-field imaging for visualising defects in composite structures [PDF]

, 2015
Low velocity impact can lead to barely visible and difficult to detect damage such as fibre and matrix breakage or delaminations in composite structures.
Endrizzi, M, Fromme, P, Murat, BIS, Olivo, A   +3 more
core   +1 more source

The Phase Relation Among Microinjection, Thermal Plasma, and Electric Field: A Case Study

Journal of Geophysical Research: Space Physics, Volume 130, Issue 12, December 2025.
Abstract Microinjections are periodic enhancements of 10 s–100 s keV electron fluxes at a cadence of several minutes on the dawnside or duskside magnetosphere. Here, we extend previous studies by comprehensively examining the plasma and wave observations provided by the Magnetospheric Multiscale (MMS) mission.
S. Tian, J. Li, J. Bortnik, C.‐P. Wang, S. Wang, J. L. Burch, O. Le Contel   +6 more
wiley   +1 more source

Dianion diagnostics in DESIREE: High-sensitivity detection of $\text{C}_{n}^{2-}$ from a sputter ion source

, 2018
A sputter ion source with a solid graphite target has been used to produce dianions with a focus on carbon cluster dianions, $\text{C}_{n}^{2-}$, with $n=7-24$.
Anderson, E. K., Björkhage, M., Blom, M., Cederquist, H., Chartkunchand, K. C., de Ruette, N., Eklund, G., Kamińska, M., Kristiansson, M. K., Källberg, A., Löfgren, P., Reinhed, P., Rosén, S., Schmidt, H. T., Simonsson, A., Stockett, M. H., Zettergren, H.   +16 more
core   +1 more source

The Electrostatic Ion Beam Trap : a mass spectrometer of infinite mass range [PDF]

, 2013
We study the ions dynamics inside an Electrostatic Ion Beam Trap (EIBT) and show that the stability of the trapping is ruled by a Hill's equation. This unexpectedly demonstrates that an EIBT, in the reference frame of the ions works very similar to a ...
Alexandre Vallette, Andersen L. H., C. I. Szabo, Larsson M., Major F. G., Major F. G., P. Indelicato   +6 more
core   +1 more source