@article {IOPORT.05646269, author = {Huck, Christian}, title = {Uniqueness in discrete tomography of Delone sets with long-range order.}, year = {2009}, journal = {Discrete \& Computational Geometry}, volume = {42}, number = {4}, issn = {0179-5376}, pages = {740-758}, publisher = {Springer-Verlag, New York, NY}, doi = {10.1007/s00454-009-9213-z}, abstract = {Summary: We address the problem of determining finite subsets of Delone sets $\Lambda \subset \Bbb R^{d}$ with long-range order by $X$-rays in prescribed $\Lambda $-directions, i.e., directions parallel to nonzero interpoint vectors of $\Lambda $. Here, an $X$-ray in direction $u$ of a finite set gives the number of points in the set on each line parallel to $u$. For our main result, we introduce the notion of algebraic Delone sets $\Lambda \subset \Bbb R^{2}$ and derive a sufficient condition for the determination of the convex subsets of these sets by $X$-rays in four prescribed $\Lambda $-directions.}, identifier = {05646269}, }