Synchrotron radiation topographic characterization of L-arginine phosphate monohydrate crystals

Y. Ding National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China

S. Nie National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China

X. S. Wu National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China

S. S. Jiang National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093, P. R. China

X. B. Hu State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China

S. Y. Guo State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China

D. Xu State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China

S. Y. Sun State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China

J. H. Jiang Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Beijing, 100039, P. R. China

Y. L. Tian Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Beijing, 100039, P. R. China

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Abstract

The growth defects in solution grown L-arginine phosphate monohydrate (LAP) organic crystals were investigated by white-beam synchrotron radiation topography. The crystals were cut into slices in different directions. The transmission topographies showed the dislocations, growth striations, growth sector boundaries and inclusions in both (100) slice and (001) slice with different reflection. We also presented the contrast of microbe, which is a severe problem in LAP crystal growth. The topography with 015 reflection showed the dislocations originated from the surface of the seed and following the (001) and (100) direction, and the Burgers vectors of those dislocations were determined. The dynamic images of growth sector boundaries were also showed clearly.

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Synchrotron radiation topographic characterization of L-arginine phosphate monohydrate crystals

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Synchrotron radiation topographic characterization of L-arginine phosphate monohydrate crystals

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