The demountable titanium cells are the most commonly used sample holders for NCNR SANS experiments. They are easy to assemble, disassemble and clean and are able to hold gel, melt, powder and liquid samples.
The cells have fixed sample thicknesses of 1 mm, 2 mm, and 4 mm. There are also "0mm" path length cells with no built-in spacer, that can use a spacer or solid sample to define the sample thickness. The 1mm path length cells require a sample volume of 0.5ml and volume scales directly with sample thickness.
The sample is held in the cell by two quartz windows, each window sealed by an o-ring. The o-rings are compressed by retaining rings that are held down by four screws. Electric, torque-locking screw drivers are available for insertion and removal of the screws. After assembling the cells, liquid samples can be inserted through the top using a syringe. Different o-rings materials are available for solvent compatibility.