Wednesday, February 21.: Lecture on ¡­

Wednesday, February 21.: Lecture on atomic scattering factors, reciprocal lattice and Ewald sphere. See Flewitt and Wild Ch. 4.3.2-4.3.6.

Thursday, February 22.: Problem solving: Determine the extinction rules for simple cubic, body centered cubic, face centered cubic and diamond structure. See the handout "Structure factors". Furthermore problems 36.63,36.65 and 36.66 in Young and Freedman.

No lab in the week from 21.02-27.02