Laue diffraction lenses for astrophysics: Theoretical concepts

Halloin, Hubert; Bastie, P.

doi:10.1007/978-1-4020-5304-7_17

Cited by 5 publications

(4 citation statements)

References 12 publications

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“…The theoretical basis of Laue diffraction lenses for astrophysics has already been given in another article in this volume ( [14], hereafter cited as Paper 1). In the present article, the geometry and instrumental response of a Laue lens are more specifically studied.…”

Section: Introductionmentioning

confidence: 99%

Laue diffraction lenses for astrophysics: From theory to experiments

Halloin¹

2006

Focusing Telescopes in Nuclear Astrophysics

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Section: Introductionmentioning

confidence: 99%

Laue diffraction lenses for astrophysics: From theory to experiments

Halloin¹

2006

Focusing Telescopes in Nuclear Astrophysics

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“…Ref. [1][2][3] ). Perfect crystals are not suitable for Laue lens applications as they behave as monochromators.…”

Section: Introductionmentioning

confidence: 98%

LAUE lens development at UC Berkeley: status and prospects

et al. 2013

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We report on the status of the Laue lens development effort led by UC Berkeley, where a dedicated X-ray beamline and a Laue lens assembly station were built. This allowed the realization of a first lens prototype in June 2012. Based on this achievement, and thanks to a new NASA APRA grant, we are moving forward to enable Laue lenses. Several parallel activities are in progress. Firstly, we are refining the method to glue quickly and accurately crystals on a lens substrate. Secondly, we are conducting a study of high-Z crystals to diffract energies up to 900 keV efficiently. And thirdly, we are exploring new concepts of Si-based lenses that could further improve the focusing capabilities, and thus the sensitivity of Laue lenses.

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“…4 However, this kind of crystals suffers 50%-maximum in reflectivity at zero absorption (diffraction efficiency) and spatial resolution of diffracted photons is limited because of the so-called mosaic defocusing effect. 5,6 Conversely, crystals with curved diffracting planes (CDP) offer a continuum of possible diffraction angles over a finite range, leading to a rectangular-shape energy passband directly owing to their curvature, while the diffraction efficiency can reach 100%.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of quasi-mosaic Ge crystals for the LAUE project

et al. 2013

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A series of quasi-mosaic curved crystals has been fabricated for the Laue project to build up a prototype of a Laue lens. Curvature has been imparted to the samples thanks to the grooving method, which makes it possible to realize self-standing curved plates. Samples are 10 × 30 × 2 mm3 Ge crystals characterized by two curvatures of different crystallographic planes. The primary curvature allows the focalization of the diffracted X-rays on a focal spot smaller than the crystal dimension. The secondary curvature, i.e. quasi-mosaic curvature, amplifies the diffraction efficiency by more than one order of magnitude with respect to an equivalent crystal without quasi-mosaic curvature. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only

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Laue diffraction lenses for astrophysics: Theoretical concepts

Cited by 5 publications

References 12 publications

Laue diffraction lenses for astrophysics: From theory to experiments

Laue diffraction lenses for astrophysics: From theory to experiments

LAUE lens development at UC Berkeley: status and prospects

Fabrication of quasi-mosaic Ge crystals for the LAUE project

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