Figure 2
Relationship between the penetration depth D and the incidence angle αi of the neutron beam. Results are calculated for MnSi at a neutron wavelength of 5.5 Å, resulting in a critical angle of αc = 0.076°. For incidence angles less than the critical angle (αi < αc), surface-sensitive GI-SANS takes place. For incidence angles greater than or equal to the critical angle (αi ≥ αc) bulk-sensitive NS-SANS takes place. |