Fig. 13
From: Sample changers for direct geometry neutron chopper spectrometers
(a) Schematic of a double cell vertical sample holder for usage with ULT devices. Yellow portions indicate the two regions where samples are respectively placed within the cell. The cell is sealed with a thin plate of aluminum using an indium seal with an atmosphere of helium gas. This hermetic seal encourages the powder to be at thermal equilibrium with the cryostat sample environment. (b) Inelastic scattering spectrum from the bottom cell shown in panel (a). (c) Inelastic scattering spectrum from the top cell shown in panel (a). (d) Integrated elastic neutron counts as a function of cell translation position while mounted at the CNCS beamline.
