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|Title:||Geometrical tools for the analysis of x-ray polarimetric signals||Authors:||Massaro, E.
DEL MONTE, Ettore
|Issue Date:||2016||Volume:||Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray||Editors:||den Herder, Jan-Willem A.; Takahashi, Tadayuki; Bautz, Marshall||Series:||PROCEEDINGS OF SPIE||Number:||9905||First Page:||99054I||Abstract:||X-ray polarimetric measurements are based on the study of distributions of the directions of scattered photons or photoelectrons and the search of a sinusoidal modulation with a period of π. We present a new simple tool based on a scatter plot of the modulation curve in which the counts in each angular bin are reported after a shifting by 1/4 of the period. The sinusoidal pattern is thus transformed in a circular plot whose radius is equal to the amplitude of the modulation, while for a not polarized radiation the scatter plot is reduced to a random point distribution centred at the mean frequency value. The advantage of this tool is that one can easily evaluate the statistical significance of the polarimetric detection and can obtain useful information on the quality of the measurement.||Note:||SPIE grants to authors (and their employers) of papers, posters, and presentation recordings published in SPIE Proceedings or SPIE Journals on the SPIE Digital Library (hereinafter "publications") the right to post an author-prepared version or an official version (preferred version) of the publication on an internal or external server controlled exclusively by the author/employer or the entity funding the research, provided that (a) such posting is noncommercial in nature and the publication is made available to users without charge; (b) an appropriate copyright notice and citation appear with the publication; and (c) a link to SPIE's official online version of the publication is provided using the item's DOI. This authorization does not extend to third-party web sites not owned and maintained by the author/employer such as ResearchGate, Academia.edu, YouTube, etc.||Conference Name:||Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray||Conference Place:||Edinburgh, UK||Conference Date:||26 June-1 July, 2016||URI:||http://hdl.handle.net/20.500.12386/24527||URL:||https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9905/1/Geometrical-tools-for-the-analysis-of-x-ray-polarimetric-signals/10.1117/12.2240683.full||ISSN:||0277-786X||ISBN:||9781510601901||DOI:||10.1117/12.2240683||Bibcode ADS:||2016SPIE.9905E..4IM||Fulltext:||open|
|Appears in Collections:||3.01 Contributi in Atti di convegno|
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checked on Sep 29, 2020
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