Hadamard X-ray Spectro-telescope

The Hadamard X-ray Spectro-telescope consists of a flat Bragg crystal, an Hadamard mask and an imaging proportional counter. We have achieved α??α≈50, which is limited by the position resolution of the detector. This telescope is useful to observe the spectral structure of extended X-ray sources. We introduce a new type of read out method (Grouped Wire Method) for the position sensitive proportional counter in order to get high energy and position resolutions for the Hadamard Spectro-telescope. In principle, this method is capable of obtaining the desired linearity over the whole area of the detector.