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Solar physicists routinely utilize observations of Ar-like Fe IX and Cl-like Fe X emission to study a variety of solar structures. However, unidentified lines exist in the Fe IX and Fe X spectra, greatly impeding the spectroscopic…

The spectrophotometry systems commonly required both in research areas and in the chemical and materials industries turn out to be expensive laboratory equipment, in many cases the acquisition of these becomes unfeasible; besides, in…

Several experimental techniques are currently under development, to measure the expected tiny fluxes of highest energy neutrinos above 10**18 eV. Projects in different stages of realisation are discussed here, which are based on optical and…

Astrophysics · Physics 2009-11-10 Rolf Nahnhauer

Deep ultraviolet (DUV) light sources are used to neutralise isolated test masses in highly sensitive space-based gravitational experiments. An example is the LISA Pathfinder charge management system, which uses low-pressure mercury lamps. A…

Instrumentation and Methods for Astrophysics · Physics 2015-12-09 D. Hollington , J. T. Baird , T. J. Sumner , P. J. Wass

We present the in-orbit performance and the first results from the ultra-violet Imaging telescope (UVIT) on ASTROSAT. UVIT consists of two identical 38cm coaligned telescopes, one for the FUV channel (130-180nm) and the other for the NUV…

The hard X-ray sky now being studied by INTEGRAL and Swift and soon by NuSTAR is rich with energetic phenomena and highly variable non-thermal phenomena on a broad range of timescales. The High Energy Telescope (HET) on the proposed…

Instrumentation and Methods for Astrophysics · Physics 2015-05-20 J. Hong , J. Grindlay , B. Allen , G. Skinner , S. Barthelmy , N. Gehrels , A. Garson , H. Krawczynski , W. Cook , F. Harrison , L. Natalucci , P. Ubertini , the EXIST/HET team

The development of single charge resolving, macroscopic silicon detectors has opened a window into rare processes at the O(eV) scale. In order to reconstruct the energy of a given event, or model the charge signal obtained for a given…

Instrumentation and Methods for Astrophysics · Physics 2020-10-07 Karthik Ramanathan , Noah Kurinsky

We experimentally demonstrate that electrically neutral particles, neutrons, can be used to directly visualize the electrostatic field inside a target volume that can be isolated or occupied. Electric-field images were obtained using a…

Instrumentation and Detectors · Physics 2020-09-11 Yuan-Yu Jau , Daniel S. Hussey , Thomas R. Gentile , Wangchun Chen

This paper will discuss the microphysical simulation of interactions in liquid xenon, the active detector medium in many leading rare-event searches for new physics, and describe experimental observables useful for understanding detector…

Advanced electron microscopy workflows require an ecosystem of microscope instruments and computing systems possibly located at different sites to conduct remotely steered and automated experiments. Current workflow executions involve…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-10-19 Anees Al-Najjar , Nageswara S. V. Rao , Ramanan Sankaran , Maxim Ziatdinov , Debangshu Mukherjee , Olga Ovchinnikova , Kevin Roccapriore , Andrew R. Lupini , Sergei V. Kalinin

Astrophysical sources of ultrahigh energy neutrinos yield tau neutrino fluxes due to neutrino oscillations. At neutrino energies in the EeV range, radio Cherenkov detection methods show promise for detecting these fluxes. We quantify the…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Iyer Dutta , I. Mocioiu , M. H. Reno , I. Sarcevic

The Extreme Ultraviolet wavelength range was one of the final windows to be opened up to astronomy. Nevertheless, it provides very important diagnostic tools for a range of astronomical objects, although the opacity of the interstellar…

Solar and Stellar Astrophysics · Physics 2015-06-17 M. A. Barstow , S. L. Casewell , J. B. Holberg , M. P. Kowalski

The study of the hard (E>10 keV) energy spectra of X-ray binary pulsars can give a wealth of information on the physical processes that occur close to the neutron star surface. Extreme matter regimes are probed, and precious information on…

Astrophysics · Physics 2007-05-23 Mauro Orlandini

We present the basic performance and experimental results of an electron beam ion trap (JAXA-EBIT), newly introduced to the Japanese astronomical community. Accurate atomic data are indispensable for the reliable interpretation of…

The coincident detection of particles is a powerful method in experimental physics, enabling the investigation of a variety of projectile-target interactions. The vast majority of coincidence experiments is performed with charged particles,…

Instrumentation and Detectors · Physics 2019-10-02 A. Hans , C. Ozga , Ph. Schmidt , G. Hartmann , A. Nehls , Ph. Wenzel , C. Richter , C. Lant , X. Holzapfel , J. H. Viehmann , U. Hergenhahn , A. Ehresmann , A. Knie

The possibility to obtain a three-dimensional representation of a single object with sub-$\mu$m resolution is crucial in many fields, from material science to clinical diagnostics. This is typically achieved through tomography, which…

Ultrashort optical pulses can trigger a variety of non-equilibrium processes in magnetic thin films affecting electrons and spins on femtosecond timescales. In order to probe the charge and magnetic degrees of freedom simultaneously, we…

Neutrinos at energies ranging from sub-TeV to EeV from astrophysical sources can yield interesting physical information about fundamental interactions, about cosmic rays and about the nature of the sources and their environment. Gamma-ray…

Astrophysics · Physics 2016-11-09 P. Meszaros , S. Razzaque

Electron beam ion sources (EBISs) are ion sources that work based on the principle of electron impact ionization, allowing the production of very highly charged ions. The ions produced can be extracted as a DC ion beam as well as ion pulses…

Accelerator Physics · Physics 2014-10-30 G. Zschornacka , M. Schmidt , A. Thorn

We present multi-wavelength imaging observations of three nearby and famous active galaxies obtained with NICMOS, ISOCAM and the MPE near-IR integral field spectrometer. The data reveal a variety of features and properties that are missed…

Astrophysics · Physics 2007-05-23 R. Maiolino , N. Thatte , A. Alonso-Herrero , D. Lutz , A. Marconi