%0 journal article
%@ 0168-9002
%A Buffet, J.C.,Clergeau, J.F.,Cooper, R.G.,Darpentigny, J.,De Laulany, A.,Fermon, C.,Fetal, S.,Fraga, F.,Guerard, B.,Kampmann, R.,Kastenmueller, A.,Mc Intyre, G.J.,Manzin, G.,Meilleur, F.,Millier, F.,Rhodes, N.,Rosta, L.,Schooneveld, E.,Smith, G.C.,Takahashi, H.,Esch, P.van,Vuure, T.L.van,Zeitelhack, K.
%D 2005
%J Nuclear Instruments and Methods in Physics Research  A
%N 1-3
%P 392-405 
%R doi:10.1016/j.nima.2005.08.018
%T Advances in detectors for single crystal neutron diffraction
%U https://doi.org/10.1016/j.nima.2005.08.018
1-3 
%X Parallax error severely limits the use of gas detectors for neutron and X-ray single-crystal diffractometry. This is particularly the case in Neutron Macromolecule Crystallography (NMC), where a large solid angle is needed. High-resolution cylindrical detectors based on Neutron Image Plates provide a large angular coverage but they are gamma sensitive and do not allow time-resolved measurements. We describe the principle of a gas counter, the multi-blade Microstrip Gas Chamber (MSGC), which has the potential to design parallax-free cylindrical detectors. It contains radial MSGC plates, providing a partitioning of the gas volume and a segmentation of the signal readout. The axial coordinate is measured by reading out the charge signal on the anodes and the trans-axial coordinate is deduced from the electron drift distance measured optically using the time difference between the primary and the avalanche light. Expected characteristics are a sub-millimeter position resolution, a sub-microsecond time resolution, and a global counting rate greater than 10 s-1.