On apparatus for studying catalysts and catalytic processes using neutron scattering

The design of a cell, built to investigate catalysis and catalytic processe s, is reported. The cell is for use at ISIS spallation neutron source at th e Rutherford Appleton Laboratory. It is required to operate in a dual manne r either under gas flows of controlled composition at low pressure (ambient -5 bar) and at high vacuum (10(-6) mbar working pressure). The temperature range of this cell is 4-1273 K. It will be used on a variety of instrument beam lines on ISIS. In use the cell is attached either to a furnace or cry ofurnace center-stick assembly and gas is supplied from a gas circuit assem bly. (C) 1999 American Institute of Physics. [S0034-6748(99)03904-0].