A Difraction Element Used to Evaluate the Depth of Bedding of Nano-Sized Radiating Objects V.G. Volostnikov, E.N. Vorontsov, S.P. Kotova, N.N. Losevskiy and D.V. Prokopova EPJ Web of Conferences, 103 (2015) 10007 Published online: 25 September 2015 DOI: 10.1051/epjconf/201510310007