Results 41 to 50 of about 13,399 (197)

Measurement of the position resolution of the Gas Pixel Detector

, 2012
The Gas Pixel Detector was designed and built as a focal plane instrument for X-ray polarimetry of celestial sources, the last unexplored subtopics of X-ray astronomy.
Alessandro Brez, Bellazzini, Bellazzini, Bellazzini, Bellazzini, Black, Citterio, Citterio, Costa, Costa, Enrico Costa, Fabio Muleri, Gloria Spandre, Lazzarotto, Massimo Minuti, Michele Pinchera, Muleri, Muleri, Muleri, Muleri, Pacciani, Paolo Soffitta, Ronaldo Bellazzini, Sergio Fabiani, Soffitta, Soffitta, Soffitta, Soffitta, Tamagawa, Wells   +29 more
core   +1 more source

PolarLight: a CubeSat X-ray Polarimeter based on the Gas Pixel Detector [PDF]

, 2019
The gas pixel detector (GPD) is designed and developed for high-sensitivity astronomical X-ray polarimetry, which is a new window about to open in a few years.
An, Peng, Baldini, Luca, Bellazzini, Ronaldo, Brez, Alessandro, Citraro, Saverio, Costa, Enrico, Feng, Hua, Huang, Jiahui, Jiang, Weichun, Jin, Ge, Jung, Aera, Latronico, Luca, Minuti, Massimo, Muleri, Fabio, Nasimi, Hikmat, Pinchera, Michele, Sgrò, Carmelo, Soffitta, Paolo, Spandre, Gloria, Wu, Qiong, Yang, Dongxin, Yu, Jiandong, Zeng, Ming   +22 more
core   +2 more sources

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

To differentiate neutron star models by X-ray polarimetry

, 2013
The nature of pulsar is still unknown because of non-perturbative effects of the fundamental strong interaction, and different models of pulsar inner structures are then suggested, either conventional neutron stars or quark stars.
Feng, Hua, Lu, Jiguang, Xu, Renxin
core   +1 more source

X-ray polarimetry with the microstrip gas chamber

Journal of Synchrotron Radiation, 1998
A two-dimensional microstrip gas chamber (MSGC) with a 5 cm × 5 cm detection area has been developed. It has 254 anodes and 255 back strips, both with 200 µm pitches. Using this MSGC, linear polarization of X-rays was successfully measured in the energy range 6–14 keV.
Y, Nishi, S, Aoki, A, Ochi, T, Tanimori, T, Takahashi, Y, Ueda, K, Okada   +6 more
openaire   +2 more sources

Near‐Infrared Polarimetric Imaging With Nonlinear Flat‐Optics

Laser &Photonics Reviews, EarlyView.
ABSTRACT A compact and broadband polarimetric imaging platform is presented, based on second‐harmonic generation (SHG) in nonlinear flat‐optics. The system employs periodic all‐dielectric AlGaAs gratings to induce polarization‐dependent SH emission, enabling pixel by pixel direct retrieval of the full Stokes vector from an input intensity distribution ...
Evgenii Menshikov, Marco A. López Sánchez, Paolo Franceschini, Andrea Tognazzi, Domenico de Ceglia, Kristina Frizyuk, Costantino De Angelis   +6 more
wiley   +1 more source

POLARIX: a pathfinder mission of X-ray polarimetry

, 2010
Since the birth of X-ray astronomy, spectral, spatial and timing observation improved dramatically, procuring a wealth of information on the majority of the classes of the celestial sources. Polarimetry, instead, remained basically unprobed.
Argan, Andrea, Attina', Primo, Baldini, Luca, Basso, Stefano, Bellazzini, Ronaldo, Brez, Alessandro, Citterio, Oberto, Costa, Enrico, Cotroneo, Vincenzo, Di Cosimo, Sergio, Di Persio, Giuseppe, Fabiani, Sergio, Feroci, Marco, Ferri, Antonella, Latronico, Luca, Lazzarotto, Francesco, Matt, Giorgio, Minuti, Massimo, Morelli, Ennio, Muleri, Fabio, Nicolini, Lucio, Pareschi, Giovanni, Pinchera, Michele, Razzano, Massimiliano, Reboa, Luigia, Rubini, Alda, Salonico, Antonio Maria, Sgro', Carmelo, Soffitta, Paolo, Spandre, Gloria, Spiga, Daniele, Tagliaferri, Gianpiero, Trois, Alessio   +32 more
core   +1 more source

Unlocking the Future of X-Ray Polarimetry with IXPE: Lessons Learned and Next Steps

Particles
This paper discusses issues encountered during the early development of the instrument on the Imaging X-ray Polarimetry Explorer (IXPE), a NASA–ASI Small Explorer mission launched on 9 December 2021.
Paolo Soffitta, Enrico Costa, Ettore Del Monte, Alessandro Di Marco, Sergio Fabiani, Riccardo Ferrazzoli, Fabio La Monaca, Fabio Muleri, Alda Rubini, Alessio Trois   +9 more
doaj   +1 more source

Handling the Background in IXPE Polarimetric Data

The Astronomical Journal, 2023
Imaging X-ray Polarimetry Explorer (IXPE) is a Small Explorer mission by NASA and Agenzia Spaziale Italiana, launched on 2021 December 9, dedicated to investigating X-ray polarimetry allowing angular-, time-, and energy-resolved observations in the 2–8 ...
Alessandro Di Marco, Paolo Soffitta, Enrico Costa, Riccardo Ferrazzoli, Fabio La Monaca, John Rankin, Ajay Ratheesh, Fei Xie, Luca Baldini, Ettore Del Monte, Steven R. Ehlert, Sergio Fabiani, Dawoon E. Kim, Fabio Muleri, Stephen L. O’Dell, Brian D. Ramsey, Alda Rubini, Carmelo Sgrò, Stefano Silvestri, Allyn F. Tennant, Martin C. Weisskopf   +20 more
doaj   +1 more source

The Imaging X-ray Polarimetry Explorer (IXPE) [PDF]

, 2018
The Imaging X-ray Polarimetry Explorer (IXPE) expands observation space by simultaneously adding polarization measurements to the array of source properties currently measured (energy, time, and location).
Bellazzini, Ronaldo, Costa, Enrico, Elsner, Ronald, Kaspi, Victoria, Kolodziejczak, Jeffrey, Marshall, Herman, Matt, Giorgio, Muleri, Fabio, O'Dell, Stephen, Ramsey, Brian, Romani, Roger, Soffitta, Paolo, Tennant, Allyn, Weisskopf, Martin C.   +13 more
core   +1 more source