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Hard X-ray and Soft Gamma Ray Polarimetry with CdTe/CZT Spectro-Imager

dc.contributor.authorCaroli, Ezio
dc.contributor.authorMoita, Miguel
dc.contributor.authorSilva, Rui Miguel Curado da
dc.contributor.authorDel Sordo, Stefano
dc.contributor.authorde Cesare, Giovanni
dc.contributor.authorMaia, Jorge
dc.contributor.authorPàscoa, Marcela
dc.date.accessioned2019-01-18T17:03:59Z
dc.date.available2019-01-18T17:03:59Z
dc.date.issued2018
dc.description.abstractCdTe/CZT based spectroscopic two-dimensional (2D)/three-dimensional (3D) imagers when operated in the Compton regime can work as high performance scattering polarimeters, for high-energy astrophysics. Polarimetry in high-energy astrophysics has been little explored. To date, X- and γ-ray source emissions have been studied almost exclusively through spectral, imaging, and timing analysis. Polarization measurements provide two additional observational parameters: the polarization angle and the level of linear polarization. These additional parameters should allow for a better discrimination between the physical mechanisms of different emission models characterizing a celestial object. Therefore, polarimetry will play a strategic role in new instrumentations for future high-energy astronomy missions. 2D and 3D CZT/CdTe spectroscopic imagers provided with coincidence readout logic can efficiently handle scattering events to perform simultaneously polarization, spectroscopy, imaging, and timing measurements. Herein, we describe the results obtained, both experimentally and by MC simulations, with CdTe/CZT pixel detector prototypes in high-energy polarimetry. We give an overview on the achievable polarimetric performance with spectroscopic imagers and on how these performances are affected by detector configuration parameters. Finally, we address the perspective of scattering polarimetry opened by the recent implementation of new high energy focusing optics, as broadband Laue lens, in next generation of hard X- and soft γ-ray astronomy instrumentation. The unprecedented sensitivity achievable by these telescopes will definitely open the window of polarimetry in this high-energy range.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/galaxies6030069pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.6/6803
dc.language.isoengpt_PT
dc.subjectScattering polarimetrypt_PT
dc.subjectCdTe/CZT spectrometerspt_PT
dc.subjectPixel detectorspt_PT
dc.subjectX- and γ-rays astrophysicspt_PT
dc.titleHard X-ray and Soft Gamma Ray Polarimetry with CdTe/CZT Spectro-Imagerpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3pt_PT
oaire.citation.startPage69pt_PT
oaire.citation.volume6pt_PT
person.familyNameCaroli
person.familyNameCurado da Silva
person.familyNameMaia
person.givenNameEzio
person.givenNameRui Miguel
person.givenNameJorge
person.identifier.ciencia-id9418-22AF-6C25
person.identifier.orcid0000-0001-8468-7433
person.identifier.orcid0000-0002-9961-965X
person.identifier.orcid0000-0002-9314-1763
person.identifier.ridG-1427-2012
person.identifier.ridK-1344-2015
person.identifier.scopus-author-id6506879465
person.identifier.scopus-author-id35586314300
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication13174b25-977f-4342-935e-29e9a15a06ad
relation.isAuthorOfPublication2d7d1fa6-178a-4928-a634-61bdb6c1c4e6
relation.isAuthorOfPublicationc3a8180f-df33-4dd2-8c5b-95565e8f54ad
relation.isAuthorOfPublication.latestForDiscovery13174b25-977f-4342-935e-29e9a15a06ad

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