Imaging in High Energy Astronomy de L. Bassani

Imaging in High Energy Astronomy: Proceedings of the International Workshop held in Anacapri (Capri-Italy), 26–30 September 1994

L. Bassani

G. di Cocco

An almost complete collection of the papers given at the International Workshop on Imaging in High Energy Astronomy (Anacapri, Italy, 1994). These proceedings, which concentrate on imaging above 10 keV, represent the state of the art in the field, resulting from the success of many missions (I.C. Granat and CGRO) carrying detectors for high energy astronomy with imaging capabilities. The main topics of the book are Bragg concentrators, coded mask-modulation collimators, double Compton telescopes, the occultation method, tracking chambers, and new experimental techniques. The book also contains some papers dealing with image reconstruction and processing, with an emphasis on the above techniques.

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Cuprins

Coding (and decoding) coded mask telescopes.- Imaging techniques applied to the coded mask SIGMA telescope.- Wide field monitoring of the X-ray sky using rotation modulation collimators.- Hard X-ray Imaging via focusing optics with mosaic crystals.- A hard X-ray telescope/concentrator design based on graded period multilayer coatings.- Review of crystal diffraction and its application to focusing energetic gamma rays.- Hard X-ray all-sky Imaging with BATSE/CGRO.- Direct demodulation method and its application to hard X-ray and ?-ray Imaging.- The INTEGRAL mission.- Future goals for Imaging.- Future goals for ?-ray spectroscopy.- Maximum entropy Imaging of COMPTEL data.- Imaging diffuse emission with COMPTEL.- Focusing in the hard X-ray band.- Imaging gas counters for X- and gamma ray astronomy.- Hard X-ray and gamma-ray Imaging with solid state detectors.- Imaging design of the wide field X-ray monitor onboard the HETE satellite.- Development of the CAPTIF software facility for the simulation of coded aperture telescopes and its application to INTEGRAL and other instruments.- Scientific design and optimization of a coded mask hard X-ray telescope.- X-ray Imaging with ART-P/GRANAT.- ABRIXAS — a broad-band Imaging X-ray all-sky survey.- The MART-LIME high-energy telescope.- The coded mask design and test flight results of a small array Germanium telescope.- HEXIT: high-energy X-ray Imaging telescope.- A compendium of coded mask designs.- Low energy gamma ray imager (LEGRI).- Advanced techniques of image correction for the coded mask telescope SIGMA.- SAX: satellite for X-ray astronomy.- Optimised sampling for hexagonal arrays coded mask telescopes.- Imaging with two angular scales using coded mask techniques.- New wavelet methods for flat fielding coded apertureimages.- Useful classes of redundant array for Imaging applications.- Solar X-ray Imaging telescope.- Incident pixel reconstruction for gamma ray telescopes.- A spaceborne crystal diffraction telescope for the energy range of nuclear transition.- A study of the effects of background subtraction on occultation Imaging.- High sensitivity Imaging of soft ?-rays using bragg concentrators.- A novel system for the location of GRBS.- New conception multilayer hard X-ray telescope for X-ray astronomy.- Replicated reflectors for wide field X-ray Imaging telescopes.- Detection of gamma ray polarization with INTEGRAL.- Sensitivity and efficiencies of the INTEGRAL Imager.- INTEGRAL X-ray monitor: a proposal for the hard X-ray imager onboard INTEGRAL.- COMPTEL as a gamma-ray polarimeter.- GLAST — a broadband high energy ?-ray telescope using silicon strip detectors.- AGATE: expanding on the success of EGRET.- The all-sky high-energy gamma-ray monitor (CYGAM PROJECT).- Imaging performance of FIGARO-IV, a large area ?-ray telescope above 100 MeV.- Hard X-ray Imaging using microchannel plate optics.- The hard X-ray telescope: Instrument concept and detectors.- Experimental results obtained with the positron-annihilation-radiation telescope of the Toulouse-Argonne collaboration.- Gamma-ray Imaging with germanium planar arrays.- Spatial and spectral resolution of a Germanium strip detectors.- Hard X-ray and gamma-ray Imaging systems utilizing Germanium strip detectors.- The Imaing liquid Xenon coded aperture telescope (LXe-CAT).- ISGRI: a CdTe layer for the Integral imager.- Imaging with CdTe arrays.- Mercuric iodide X-ray camera for high energy astronomy.- The neutron spectrum inside the shielding of balloon-borne Ge spectrometers.- An extended energy range CsI(TI)-photodiodedetector.- The energy correction algorithm for an X-ray Imaging gas scintillator proportional counter.- The photon statistics of point source correlation images in coded aperture Imaging.- Author Index.