Optical properties of Laue lenses for hard X-rays (&gt; 60 keV)

Pisa, Alessandro; Frontera, F.; Loffredo, G.; Pellicciotta, D.; Auricchio, N.

doi:10.1007/978-1-4020-5304-7_23

Cited by 5 publications

(9 citation statements)

References 4 publications

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“…Results from a Monte Carlo (MC) code, that has been developed to derive the properties of different lens configurations, like their Point Spread Functions (PSF), for either on-axis and off-axis incident photons, have been already reported. 5,8,9 They confirm the results obtained from the theoretical investigation and extend them.…”

Section: Summary Of the Lens Design Study Resultssupporting

confidence: 86%

“…However the optimization of the lens effective area at the highest energies could imply large thicknesses, that could be incompatible with lens weight constraints. We have investigated this issue, 9 finding that a good compromize between crystal thickness and lens weight can be found. Also the mosaic spread β issue has been investigated.…”

Section: Summary Of the Lens Design Study Resultsmentioning

confidence: 99%

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Development status of a Laue lens project for gamma-ray astronomy

et al. 2007

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Section: Summary Of the Lens Design Study Resultssupporting

confidence: 86%

Section: Summary Of the Lens Design Study Resultsmentioning

confidence: 99%

Development status of a Laue lens project for gamma-ray astronomy

et al. 2007

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“…[24]. This latter was developed through Python programming language, which takes advantage of a very large and comprehensive standard library and is largely used by the scientific community.…”

Section: Methodsmentioning

confidence: 99%

Self-standing bent silicon crystals for very high efficiency Laue lens

et al. 2011

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Silicon mono-crystals have been bent thanks to a series of parallel superficial indentations on one of the largest faces of the crystals. This technique relies on irreversible compression of the crystal beneath and beside the indentations. This latter causes deformation with no need for external device, resulting in a uniform self-standing curvature within the crystal. Indented Si crystals have been characterized at European Synchrotron Radiation Facility using a monochromatic beam ranging from 150 to 700 keV. Crystals exhibited very high diffraction efficiency over a broad range of energy, peaking 95% at 150 keV. Measured angular spread of the diffracted beam was always very close to the morphological curvature of the sample under investigation, proving that the energy passband of bent crystals can be controlled by simply imparting a selected curvature to the sample. The method of superficial indentations was found to offer high reproducibility and easy control of diffraction properties of the crystals. Moreover the method is cheap and simple, being based on mass production tools. A Laue lens made of crystals bent by superficial indentations can provide high-efficiency concentration of hard x-ray photons, leading significant improvement in many astrophysical applications.

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“…The optical properties of a lens, for both on-axis and off-axis incident photons, have been investigated by means of Monte Carlo (MC) simulations [11,31]. For flat crystal tiles, the Point Spread Function (PSF) depends on the crystal size, on their mosaicity and on the accuracy of their positioning in the lens.…”

Section: Optical Properties Of a Lensmentioning

confidence: 99%