Results 31 to 40 of about 2,148,167 (385)

An efficient photoelectric X-ray Polarimeter for the study of Black Holes and Neutron Stars [PDF]

, 2001
In astronomy there are basically four kinds of observations to extract the information carried by electromagnetic radiation: photometry, imaging, spectroscopy and polarimetry.
Bellazzini, Ronaldo, Brez, Alessandro, Costa, Enrico, Lumb, Nicholas, Soffitta, Paolo, Spandre, Gloria   +5 more
core   +2 more sources

Attosecond transient absorption probing of electronic superpositions of bound states in neon: detection of quantum beats

New Journal of Physics, 2014
Electronic wavepackets composed of multiple bound excited states of atomic neon lying between 19.6 and 21.5 eV are launched using an isolated attosecond pulse. Individual quantum beats of the wavepacket are detected by perturbing the induced polarization
Annelise R Beck, Birgitta Bernhardt, Erika R Warrick, Mengxi Wu, Shaohao Chen, Mette B Gaarde, Kenneth J Schafer, Daniel M Neumark, Stephen R Leone   +8 more
doaj   +1 more source

Development of Fe3O4 core–TiO2 shell nanocomposites and nanoconjugates as a foundation for neuroblastoma radiosensitization

Cancer Nanotechnology, 2021
Background Neuroblastoma is the most common extracranial solid malignancy in childhood which, despite the current progress in radiotherapy and chemotherapy protocols, still has a high mortality rate in high risk tumors.
William Liu, Salida Mirzoeva, Ye Yuan, Junjing Deng, Si Chen, Barry Lai, Stefan Vogt, Karna Shah, Rahul Shroff, Reiner Bleher, Qiaoling Jin, Nghia Vo, Remon Bazak, Carissa Ritner, Stanley Gutionov, Sumita Raha, Julia Sedlmair, Carol Hirschmugl, Chris Jacobsen, Tatjana Paunesku, John Kalapurkal, Gayle E. Woloschak   +21 more
doaj   +1 more source

Photoelectric Polarimetry and the Gas Pixel Detector Yesterday, Today and Tomorrow

Galaxies, 2018
Since the very beginning of X-ray Astronomy, polarimetry has been suggested as a tool of diagnostics, of great potentiality. While almost all measurements of X-rays were based on detectors using the photoelectric effect, the first attempt to perform ...
Enrico Costa
doaj   +1 more source

X-rays from Radio-Galaxies: BeppoSAX Observations [PDF]

, 2000
We briefly review BeppoSAX observations of X-ray bright radio-galaxies. Their X-ray spectra are quite varied, and perhaps surprisingly, any similarity between radio-loud AGN and Seyfert galaxies is the exception rather than the rule.
C.M Urry, Grandi, Grandi, Haardt, Haardt, L Maraschi, Maraschi, Nandra, P Grandi, Rees, Reynolds, Shakura, Shapiro, Tadhunter, Wozniak   +14 more
core   +3 more sources

3D Printed Ultra‐Fast Plastic Scintillators Based on Perovskite‐Photocurable Polymer Composite

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The demand for radiation detection is increasing in a number of fields, including high‐energy physics, medical imaging, and homeland security. This study serves to demonstrate the potential for the fabrication of fast perovskite‐based scintillators with complex shapes via stereolithographic additive manufacturing, representing a new path toward the ...
Antonella Giuri, Amal C Chekkallur, Mario Calora, Rosanna Mastria, Loris Martinazzoli, Etiennette Auffray, Sanosh Kunjalukkal Padmanabhan, Sara Carturan, Sandra Moretto, Gianluca Quarta, Lucio Calcagnile, Matteo Polo, Alberto Quaranta, Alfonso Maffezzoli, Anna Paola Caricato, Aurora Rizzo, Carola Esposito Corcione   +16 more
wiley   +1 more source

Spin period change and the magnetic fields of neutron stars in Be X-ray binaries in the SMC

EPJ Web of Conferences, 2014
We report on the long term average spin period, rate of change of spin period and X-ray luminosity during outbursts for 42 Be X-ray binary systems in the Small Magellanic Cloud. We also collect and calculate parameters of each system and use this data to
Klus H., Ho W.C.G., Coe M.J., Corbet R.H.D., Townsend L.J.   +4 more
doaj   +1 more source

Unique Performance Considerations for Printable Organic Semiconductor and Perovskite Radiation Detectors: Toward Consensus on Best Practice Evaluation

Advanced Functional Materials, EarlyView.
A lack of standard approaches for testing and reporting the performance of metal halide perovskites and organic semiconductor radiation detectors has resulted in inconsistent interpretation of performance parameters, impeding progress in the field. This Perspective recommends key metrics and experimental details, which are suggested for reporting in ...
Jessie A. Posar, Matthew Large, Andrea Ciavatti, Laura Basiricò, Beatrice Fraboni, Paul J. Sellin, Attila J. Mozer, Marco Petasecca, Matthew J. Griffith   +8 more
wiley   +1 more source

First XMM-Newton Observations of the Globular Cluster M22 [PDF]

, 2001
We have examined preliminary data of the globular cluster, M22, from the EPIC MOS detectors on board XMM-Newton. We have detected 27 X-ray sources within the centre of the field of view, 24 of which are new detections. Three sources were found within the
Asai, Asai, B. Gendre, Bahcall, Briel, Campana, D'Amico, D. Barret, Di Stefano, Djorgovski, Djorgovski, Fox, Grindlay, Grindlay, Harris, Hasinger, Hertz, Hertz, Johnston, Johnston, Kulkarni, Lightman, N. A. Webb, Narayan, Peterson, Piotto, Ramsay, Richman, Ritter, Thorsett, Turner, van der Klis, Verbunt, Verbunt, Verbunt, Verbunt, Verbunt, Zwart   +37 more
core   +2 more sources

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source