NDLI: Polarimetry with a Laue Lens and CZT pixel detector

Content Provider	IEEE Xplore Digital Library
Author	Caroli, Ezio Curado da Silva, Rui M. Stephen, John B. Pisa, Alessandro Auricchio, Natalia del Sordo, Stefano Donati, Ariano Schiavone, Filomena Landini, Gianni Honkimaki, Veijo Frontera, Filippo
Copyright Year	2008
Description	Author affiliation: INAF/IASF-Bologna, I40129 Italy (Caroli, Ezio; Stephen, John B.; Donati, Ariano; Schiavone, Filomena; Landini, Gianni) \|\| Dep. de Física, Universidade de Coimbra, P-3000 Portugal (Curado da Silva, Rui M.) \|\| INAF/IASF-Palermo, I90146 Italy (del Sordo, Stefano) \|\| Physics Dept of the University of Ferrara, I44100 Italy (Pisa, Alessandro; Auricchio, Natalia; Frontera, Filippo) \|\| ESRF, Grenoble, F38043 France (Honkimaki, Veijo)
Abstract	A new generation of high sensitivity telescopes based on the use of Laue lenses coupled with high efficiency solid state focal plane detectors has been identified as a possibility for hard X and soft gamma ray astronomy. For this kind of space mission, polarimetry is recognized as a very important observational parameter and therefore this capability should be included as one of the primary scientific requirements. In this framework our group has realized a small experiment to demonstrate that the combination of a Laue Lens, built using Cu mosaic crystals, with a CZT pixel detector is capable of measuring the polarization of hard X ray sources contemporaneously with spectroscopy and imaging. This experiment was performed at the beginning of March 2008 using the ID15B beam line at ESRF (Grenoble). The experiment was based on a pixel CZT detector (5 mm thick array with 11×11 pixels of 2.5×2.5 $mm^{2})$ with a sensitive area of 3×3 $cm^{2}$ in conjunction with a mosaic Cu crystal (15×15 $mm^{2},$ 4 mm thick) used in the Laue diffraction configuration. During the tests the Cu crystal was rotated so as to simulate a Laue lens ring, and the detector was moved in order to have the diffracted beam always impinging on the same pixel. The beam at the ID15B have allow us to test the response of this system, with almost 100% linearly polarized photon at ∼90, 270, 350 keV. In this paper we describe the experimental setup and we report on the preliminary results, with particular emphasis on the evaluation of possible systematic effect introduced in the detected polarization of the impinging photon by the Laue diffraction process.
Starting Page	90
Ending Page	95
File Size	5411737
Page Count	6
File Format	PDF
ISBN	9781424427147
ISSN	10957863
DOI	10.1109/NSSMIC.2008.4775131
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-19
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polarimetry Lenses Polarization Diffraction Telescopes Solid state circuits Gamma ray detection Gamma ray detectors Astronomy Space missions
Content Type	Text
Resource Type	Article

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