Dr. Giselher G. Lichti Profile

Dr. Giselher G. Lichti

Retired at MPI extraterrestrische Physik

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 11 October 2004 Paper

The GLAST burst monitor

Andreas von Kienlin, Charles Meegan, Giselher Lichti, Narayana Bhat, Michael Briggs, Valerie Connaughton, Roland Diehl, Gerald Fishman, Jochen Greiner, Andrew Hoover, R. Kippen, Chryssa Kouveliotou, William Paciesas, Robert Preece, Volker Schoenfelder, Helmut Steinle, Robert Wilson

Proceedings Volume 5488, (2004) https://doi.org/10.1117/12.552913

KEYWORDS: Sensors, Gamma radiation, Crystals, Photons, Space telescopes, Telescopes, Space operations, Satellites, Power supplies, Glasses

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Proceedings Article | 11 March 2003 Paper

GBM: a gamma-ray burst monitor for GLAST

Giselher Lichti, Michael Briggs, Roland Diehl, Gerald Fishman, Richard Kippen, Chryssa Kouveliotou, Charles Meegan, William Paciesas, Robert Preece, Volker Schoenfelder, Andreas von Kienlin

Proceedings Volume 4851, (2003) https://doi.org/10.1117/12.461174

KEYWORDS: Sensors, Crystals, Gamma radiation, Space operations, Space telescopes, Telescopes, Particles, Calibration, Time resolved spectroscopy, Astronomy

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Proceedings Article | 11 March 2003 Paper

Calibration of the spectrometer aboard the INTEGRAL satellite

Stephane Schanne, Bertrand Cordier, Maurice Gros, David Attie, Peter von Ballmoos, Laurent Bouchet, Raffaelo Carli, Paul Connell, Roland Diehl, Pierre Jean, Juergen Kiener, Andreas von Kienlin, Juergen Knoedlseder, Phillipe Laurent, Giselher Lichti, Pierre Mandrou, Jaques Paul, Philippe Paul, Jean-Pierre Roques, Filomeno Sanchez, Volker Schoenfelder, Chris Shrader, Gerald Skinner, Andrew Strong, Steven Sturner, Vincent Tatischeff, Bonnard Teegarden, Gilbert Vedrenne, Georg Weidenspointner, Cornelia Wunderer

Proceedings Volume 4851, (2003) https://doi.org/10.1117/12.461604

KEYWORDS: Sensors, Calibration, Photons, Spectroscopy, Satellites, Germanium, Crystals, Energy efficiency, Sodium, X-rays

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Proceedings Article | 11 March 2003 Paper

Gamma-ray burst detection with INTEGRAL/SPI

Andreas von Kienlin, Nikolas Arend, Giselher Lichti, Andrew Strong, Paul Connell

Proceedings Volume 4851, (2003) https://doi.org/10.1117/12.461141

KEYWORDS: Sensors, Space operations, Spectroscopy, Crystals, Gamma radiation, Imaging systems, Detection and tracking algorithms, Cameras, Signal processing, Satellites

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Proceedings Article | 11 March 2003 Paper

Imaging with the coded aperture gamma-ray spectrometer SPI aboard INTEGRAL

Cornelia Wunderer, Andrew Strong, David Attie, Peter von Ballmoos, Paul Connell, Bertrand Cordier, Roland Diehl, J. Wolfgang Hammer, Pierre Jean, Andreas von Kienlin, Juergen Knoedlseder, Giselher Lichti, Pierre Mandrou, Jaques Paul, Philippe Paul, Victor Reglero, Jean-Pierre Roques, Filomeno Sanchez, Stephane Schanne, Volker Schoenfelder, Chris Shrader, Gerald Skinner, Steven Sturner, Bonnard Teegarden, Gilbert Vedrenne, Georg Weidenspointner

Proceedings Volume 4851, (2003) https://doi.org/10.1117/12.461155

KEYWORDS: Sensors, Germanium, Calibration, Coded apertures, Gamma radiation, Reconstruction algorithms, Spectroscopy, Imaging systems, Coded aperture imaging, Detection and tracking algorithms

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Proceedings Article | 18 October 1996 Paper

Spectrometer SPI of the INTEGRAL mission

Giselher Lichti, Volker Schoenfelder, Roland Diehl, Robert Georgii, Thomas Kirchner, Gilbert Vedrenne, Pierre Mandrou, Peter von Ballmoos, Pierre Jean, Francis Albernhe, Philippe Durouchoux, Bertrand Cordier, Nene Diallo, Filomeno Sanchez, Pierre Leleux, Patricia Caraveo, Bonnard Teegarden, James Matteson, Robert Lin, Gerald Skinner, Paul Connell

Proceedings Volume 2806, (1996) https://doi.org/10.1117/12.253981

KEYWORDS: Spectroscopy, Sensors, Germanium, Crystals, Spatial resolution, Astronomy, Telescopes, Galactic astronomy, Spectroscopes, Stars

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INTEGRAL is ESA's high-energy astrophysics mission to be launched into a high eccentric orbit early in the next decade. One of the two mission's main telescopes is the gamma-ray spectrometer SPI. This instrument features a compact array of 19 high-purity germanium detectors shielded by a massive anticoincidence system. A coded aperture of the HURA type modulates the astrophysical signal. We present the spectrometer system and its characteristics and discuss the choices that led to the present design. The instrument properties like imaging capability, energy resolution and sensitivity have been evaluated by extensive Monte-Carlo simulations. The expected performance for narrow-line spectroscopy is characterized by an energy resolution of approximately 1.6 keV at 1 MeV, an angular resolution of approximately 2 degrees within a totally coded field of view of approximately 15 degrees, and a sensitivity of (2 - 5) multiplied by 10^-6 gamma/(cm² s) for 4 multiplied by 10⁶ s observation time in the nominal energy range from approximately 20 keV and approximately 8 MeV. With these characteristic features it will be possible for the first time to explore the gamma-ray sky in greater depth and detail than it was possible with previous gamma- ray telescopes like SIGMA, OSSE and COMPTEL. In particular the field of nuclear astrophysics will be addressed with an unprecedented combination of sensitivity and energy. Especially the high-energy resolution allows for the first time measuring gamma-ray line profiles. Such lines are emitted by the debris of nucleosynthesis processes, by the annihilation process near compact objects and by the nuclear interaction between cosmic rays and interstellar matter. Lines of all these processes have been measured so far, but, owing to the relatively poor energy resolution, details of the emission processes in the source regions could not be studied. With the high-resolution spectroscopy of SPI such detailed investigations will be possible opening a wealth of astrophysical investigations.

Proceedings Article | 18 October 1996 Paper

Optimization of the veto shield for the INTEGRAL spectrometer SPI with Monte Carlo simulations

Robert Georgii, Giselher Lichti, Thomas Kirchner, Volker Schoenfelder, Peter von Ballmoos, Pierre Jean, Pierre Mandrou, Juan Naya, Gilbert Vedrenne, Bertrand Cordier, Nene Diallo

Proceedings Volume 2806, (1996) https://doi.org/10.1117/12.253982

KEYWORDS: Crystals, Monte Carlo methods, Spectroscopy, Particles, Germanium, Information operations, Sensors, Satellites, Absorption, Electrons

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