We describe a temperature controlled sample cell suitable for the study of biomimetic materials (e.g., lipid bilayers) using neutron diffraction, and capable of exerting hydrostatic pressures of up to 370 MPa. The advantage of this sample cell, compared to previous high-pressure cells of its type, is that it allows for the use of samples aligned on a solid support which, compared to "powder" or so-called liposomal preparations, requires only small amounts of sample and allows for the clear differentiation between in-plane and out-of-plane structure. ; NRC Pub: yes