Quasi-specular albedo of cold neutrons from powder of nanoparticles

Autor: Cubitt, R., Lychagin, E. V., Muzychka, A. Yu., Nekhaev, G. V., Nesvizhevsky, V. V., Pignol, G., Protasov, K. V., Strelkov, A. V.
Rok vydání: 2009
Předmět:
Zdroj: Nucl. Instr. Meth. A 622 (2010) 182
Druh dokumentu: Working Paper
DOI: 10.1016/j.nima.2010.07.049
Popis: We predicted and observed for the first time the quasi-specular albedo of cold neutrons at small incidence angles from a powder of nanoparticles. This albedo (reflection) is due to multiple neutron small-angle scattering. The reflection angle as well as the half-width of angular distribution of reflected neutrons is approximately equal to the incidence angle. The measured reflection probability was equal to ~30% within the detector angular size that corresponds to 40-50% total calculated probability of quasi-specular reflection.
Databáze: arXiv