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18 July 2000 Distributed read-out imaging devices for x-ray imaging spectroscopy
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We present an experimental study of the performance of Distributed Read-Out Imaging Devices (DROIDs), 1- and 2-D photon-counting imaging spectrometers, based on Ta/Al-based STJs placed on a Ta absorber. Results obtained with highly collimated illumination with 10 keV X-ray photons clearly demonstrate the imaging capabilities of 2-D DROIDs. The derived spatial FWHM resolution is 7 micrometers for a 200 X 200 micrometers 2 absorber. With a 1-D DROID we have measured an intrinsic energy resolution of 15 eV FWHM for 6 keV photons. At high energies (E > 6 keV) the resolution is limited by spatial fluctuations in the qp recombination rate.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Roland H. den Hartog, Didier D. E. Martin, Alex G. Kozorezov, Peter Verhoeve, Nicola Rando, Anthony J. Peacock, G. Brammertz, Michael K. Krumrey, D. J. Goldie, and R. Venn "Distributed read-out imaging devices for x-ray imaging spectroscopy", Proc. SPIE 4012, X-Ray Optics, Instruments, and Missions III, (18 July 2000);

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