Results 21 to 30 of about 6,061,876 (188)

Polarized Light Microscopy for Quantitative Assessment of Sarcomere-Scale Structural Order in Cardiac Tissue. [PDF]

J Biophotonics
Impact of cardiac and respiratory arrest on cardiac muscle tissue. Wistar rats were injected (on the left) either with cisatracurium to induce a respiratory arrest or lidocaine to induce a cardiac arrest (in the middle). Further, the pathophysiological changes developed and were assessed with linear polarization microscopy at 600–3000 nm wavelength ...
Piavchenko G, Venediktov A, Shamitko Z, Urazova K, Obelchakova M, Khabarova E, Ershov A, Kartashkina N, Grikh V, Smirnov V, Ramenskaya G, Yatskovskiy A, Meglinski I.   +12 more
europepmc   +2 more sources

An Overview of X-Ray Polarimetry of Astronomical Sources

Galaxies, 2018
We review the history of astronomical X-ray polarimetry based on the author’s perspective, beginning with early sounding-rocket experiments by Robert Novick at Columbia University and his team, of which the author was a member.
Martin C. Weisskopf
doaj   +3 more sources

The Instrument of the Imaging X-Ray Polarimetry Explorer [PDF]

The Astronomical Journal, 2021
Abstract While X-ray spectroscopy, timing, and imaging have improved much since 1962 when the first astronomical nonsolar source was discovered, especially wi the launch of the Newton/X-ray Multi-Mirror Mission, Rossi/X-ray Timing Explorer, and Chandra/Advanced X-ray Astrophysics Facility, the progress of X-ray polarimetry has been ...
Paolo Soffitta, Luca Baldini, Ronaldo Bellazzini, Enrico Costa, Luca Latronico, Fabio Muleri, Ettore Del Monte, Sergio Fabiani, Massimo Minuti, Michele Pinchera, Carmelo Sgro’, Gloria Spandre, Alessio Trois, Fabrizio Amici, Hans Andersson, Primo Attina’, Matteo Bachetti, Mattia Barbanera, Fabio Borotto, Alessandro Brez, Daniele Brienza, Ciro Caporale, Claudia Cardelli, Rita Carpentiero, Simone Castellano, Marco Castronuovo, Luca Cavalli, Elisabetta Cavazzuti, Marco Ceccanti, Mauro Centrone, Stefano Ciprini, Saverio Citraro, Fabio D’Amico, Elisa D’Alba, Sergio Di Cosimo, Niccolo’ Di Lalla, Alessandro Di Marco, Giuseppe Di Persio, Immacolata Donnarumma, Yuri Evangelista, Riccardo Ferrazzoli, Asami Hayato, Takao Kitaguchi, Fabio La Monaca, Carlo Lefevre, Pasqualino Loffredo, Paolo Lorenzi, Leonardo Lucchesi, Carlo Magazzu, Simone Maldera, Alberto Manfreda, Elio Mangraviti, Marco Marengo, Giorgio Matt, Paolo Mereu, Alfredo Morbidini, Federico Mosti, Toshio Nakano, Hikmat Nasimi, Barbara Negri, Seppo Nenonen, Alessio Nuti, Leonardo Orsini, Matteo Perri, Melissa Pesce-Rollins, Raffaele Piazzolla, Maura Pilia, Alessandro Profeti, Simonetta Puccetti, John Rankin, Ajay Ratheesh, Alda Rubini, Francesco Santoli, Paolo Sarra, Emanuele Scalise, Andrea Sciortino, Toru Tamagawa, Marcello Tardiola, Antonino Tobia, Marco Vimercati, Fei Xie   +80 more
openaire   +6 more sources

Instrumentation and Future Missions in the Upcoming Era of X-ray Polarimetry

Galaxies, 2018
The maturity of current detectors based on technologies that range from solid state to gases renewed the interest for X-ray polarimetry, raising the enthusiasm of a wide scientific community to improve the performance of polarimeters as well as to ...
Sergio Fabiani
doaj   +3 more sources

X-RAY AND GAMMA-RAY POLARIMETRY OF GRBS [PDF]

EAS Publications Series, 2013
Polarimetry is expected to play a major role as a diagnostic tool for GRBs. Techniques and methods for X/Gamma ray polarimetry are reviewed including the specific problems related to the transient nature of the sources. Optical data do not encourage optimistic predictions on polarimetry of afterglows.
E. Costa
openaire   +2 more sources

General History of X-Ray Polarimetry in Astrophysics [PDF]

, 2022
19 pages, no figure, Invited Chapter for the "Handbook of X-Ray and Gamma-Ray Astrophysics" (Eds. C.Bambi and A.Santangelo, Springer Singapore, expected in 2022)
Costa, Enrico
openaire   +3 more sources

Investigating the Properties of the Relativistic Jet and Hot Corona in AGN with X-ray Polarimetry

Galaxies
X-ray polarimetry has been suggested as a prominent tool for investigating the geometrical and physical properties of the emissions from active galactic nuclei (AGN).
Dawoon E. Kim, Laura Di Gesu, Frédéric Marin, Alan P. Marscher, Giorgio Matt, Paolo Soffitta, Francesco Tombesi, Enrico Costa, Immacolata Donnarumma   +8 more
doaj   +3 more sources

Micropattern gas detector for X-ray polarimetry

SPIE Proceedings, 2003
We report on a new instrument that brings high efficiency to x-ray polarimetry, which is the last unexplored field of x-ray astronomy. It derives the polarization information from the tracks of the photoelectrons imaged by a finely subdivided gas pixel detector.
Bellazzini R, ANGELINI, FRANCO, BALDINI, LUCA, Brez A, Costa E, di Persio G, Latronico L, MASSAI, MARCO MARIA, Omodei N, Pacciani L, Soffitta P, Spandre G, BE Fineschi S.   +12 more
openaire   +3 more sources

Scattering Polarimetry in the Hard X-ray Range

Instruments
In one and a half years, the Imaging X-ray Polarimetry Explorer has demonstrated the role and the potentiality of Polarimetry in X-ray Astronomy. The next steps include extension to higher energies.
Enrico Costa
doaj   +3 more sources

X-Ray Polarimetry with X-Calibur [PDF]

, 2014
OF THE DISSERTATION . . . . . . . . . . . . . . . . . . . . . xiv 1 The polarization of cosmic X-ray sources . . . . . . . . . . . . . . . 1 1.1 Elementary processes producing polarized X-rays . . . . . . . . . . . 1 1.1.1 Cyclotron emission . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1.2 Synchrotron emission . . . . . . . . . . . . . . . . . .
Guo, Qingzhen
openaire   +3 more sources