Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/7683
Title: A focal plane detector design for a wide-band Laue-lens telescope
Authors: Caroli, Ezio 
Auricchio, Natalia 
Amati, Lorenzo 
Bezsmolnyy, Yuriy 
Budtz-JøRgensen, Carl 
Silva, Rui da 
Frontera, Filippo 
Pisa, Alessandro 
Sordo, Stefano 
Stephen, John 
Ventura, Giulio 
Issue Date: 2005
Citation: Experimental Astronomy. 20:1 (2005) 341-351
Abstract: Abstract The energy range above 60 keV is important for the study of many open problems in high energy astrophysics such as the role of Inverse Compton with respect to synchrotron or thermal processes in GRBs, non thermal mechanisms in SNR, the study of the high energy cut-offs in AGN spectra, and the detection of nuclear and annihilation lines. Recently the development of high energy Laue lenses with broad energy bandpasses from 60 to 600keV have been proposed for a Hard X ray focusing Telescope (HAXTEL) in order to study the X-ray continuum of celestial sources. The required focal plane detector should have high detection efficiency over the entire operative range, a spatial resolution of about 1mm, an energy resolution of a few keV at 500keV and a sensitivity to linear polarization. We describe a possible configuration of the focal plane detector based on several CdTe/CZT pixelated layers stacked together to achieve the required detection efficiency at high energy.Each layer can operate both as a separate position sensitive detector and polarimeter or work with other layers to increase the overall photopeak efficiency. Each layer has a hexagonal shape in order to minimize the detector surface required to cover the lens field of view. The pixels would have the same geometry so as to provide the best coupling with the lens point spread function and to increase the symmetry for polarimetric studies.
URI: http://hdl.handle.net/10316/7683
DOI: 10.1007/s10686-006-9047-0
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

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