TY - JOUR
T1 - A classroom demonstration of reciprocal space
AU - Madsen, Morten Hannibal
AU - Høpfner, Louise
AU - Rasmussen, Nina
AU - Stolborg, Mikkel
AU - Nygård, Jesper
AU - Feidenhans'l, Robert Krarup
AU - Thomsen, Jan Westenkær
PY - 2013/3/18
Y1 - 2013/3/18
N2 - An array of nanowires a laser pointer are used for a simple visualization of two-dimensional reciprocal space. The experiment can be performed without any preparation in any classroom. It aids the teaching of scattering experiments, illustrates the underlying principles of electron, x-ray, neutron scattering. A detailed study of the diffraction pattern was performed by mounting the sample with nanowires on a stage designed for x-ray scattering. The setup is well suited for undergraduate students, who get training in sample alignment in a small lab instead of at a large-scale facility. The exact positions of the diffraction spots are calculated monitored experimentally for a 360o rotation of the sample. By fitting to this set of images, it is possible to determine the lattice vectors of the artificial crystal with an uncertainty of less than 1%.
AB - An array of nanowires a laser pointer are used for a simple visualization of two-dimensional reciprocal space. The experiment can be performed without any preparation in any classroom. It aids the teaching of scattering experiments, illustrates the underlying principles of electron, x-ray, neutron scattering. A detailed study of the diffraction pattern was performed by mounting the sample with nanowires on a stage designed for x-ray scattering. The setup is well suited for undergraduate students, who get training in sample alignment in a small lab instead of at a large-scale facility. The exact positions of the diffraction spots are calculated monitored experimentally for a 360o rotation of the sample. By fitting to this set of images, it is possible to determine the lattice vectors of the artificial crystal with an uncertainty of less than 1%.
U2 - 10.1119/1.4773979
DO - 10.1119/1.4773979
M3 - Journal article
SN - 0002-9505
VL - 81
JO - American Journal of Physics
JF - American Journal of Physics
IS - 4
M1 - 274
ER -