Abstract
Beyond the present technologies, Laue diffraction lenses are very promising tools in the field of gamma-ray astrophysics. The theoretical concepts of this kind of instruments are based on the Laue diffraction in crystals, discovered almost 100 years ago. Though they are commonly used in crystallography, their application to γ-ray focusing in astrophysics requires some specific developments, e.g. in terms of energy and imaging responses. The present article describes the physics of X-ray diffraction in crystals. In the context of the Darwin model of mosaic crystals, some peculiar aspects, relevant to the astrophysical observation, are discussed. The evaluation and optimization of diffraction efficiency are discussed, especially with rigards to the crystal’s mosaicity and thickness, its spatial extent and deviations to the “ideally imperfect” Darwin model.
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Friedrich, P.K.W., Laue, M.: Annalen der Physik 41, 971 (1913)
Laue, M.: Annalen der Physik 41, 989 (1913)
Halloin, H.: Exp. Astron. 20, DOI 10.1007/s10686-006-9063-0 (2006)
Gouy, M.: Ann. Phys. de Chimie 5, 241 (1916)
Dardord, R.: J. Phys. Le Radium 3, 218 (1922)
Fermi, E.: Nuovo Cimento 25, 63 (1923)
Guinier, A.: Théorie et Technique de la Radiocristallographie. Dunod, Paris (1956)
Halloin, H.: Ph.D. thesis, University Paul Sabatier, Toulouse (2003)
Warren, B.E.: X-ray Diffraction. Addison-Wesley Publishing Company (1969)
Zachariasen, W.H.: Theory of X-Ray Diffraction in Crystals. Dover Publications Inc., New York (1945)
Zachariasen, W.H.: Acta Crystallogr. 16, 1139 (1963)
Cromer, D.T., Waber, J.T.: International Tables for X-Ray Crystallography, vol. 4. Kynoch Press, Birmingham, pp. 71–147 (1974)
Darwin, C.G.: Philos. Mag. 27, 315 (1914)
Darwin, C.G.: Philos. Mag. 27, 675 (1914)
Darwin, C.G.: Philos. Mag. 43, 800 (1922)
Smither, R.K.: Exp. Astron. 20, DOI 10.1007/s10686-006-9019-9 (2006)
Sanchez del Rio, M., Dejus, R.J.: Web page of the X-ray Oriented Programs (XOP), http://www.esrf.fr/computing/scientific/xop2.1 (2003)
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PACS 95.55.Ka, 61.50.Ah, 61.10.−i, 41.50.+h
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Halloin, H., Bastie, P. Laue diffraction lenses for astrophysics: Theoretical concepts. Exp Astron 20, 151–170 (2005). https://doi.org/10.1007/s10686-006-9064-z
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DOI: https://doi.org/10.1007/s10686-006-9064-z