Dr. Dieter Richard Taubert Profile

Dr. Dieter Richard Taubert

at Physikalisch-Technische Bundesanstalt

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Publications (6)

Proceedings Article | 11 October 2018 Presentation

The spectral and radiometric calibration of the ENMAP onboard calibration assembly (OBCA) (Conference Presentation)

Christian Monte, Max Reiniger, Christoph Baltruschat, Ingmar Müller, Richard Wachter, Ludger Wilkens, Felix Theml, Gavin Staton, Dieter Richard Taubert, Jörg Hollandt

Proceedings Volume 10785, 1078510 (2018) https://doi.org/10.1117/12.2325750

KEYWORDS: Calibration, Spectral calibration, Radio optics, Sensors, Environmental monitoring, Satellites, Imaging systems, Optical spheres, Halogens, Lamps

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The Environmental Mapping and Analysis Program (EnMAP) is a German hyperspectral satellite mission to monitor and characterize the Earth’s environment. The EnMAP payload, the Hyper Spectral Imager (HSI) features an on-board calibration assembly (OBCA) which is designated to provide the optical radiation to monitor the instrument radiometric and spectral ‎stability during the ‎mission lifetime. The assembly comprises two integrating spheres in twin configuration equipped with several different optical radiation sources. The large ‎sphere made of white diffuse reflecting material is dedicated for radiometric stability ‎measurements, while the ‎small sphere, made of rare-earth doped diffuse reflecting material, is dedicated for spectral stability checks. ‎The ‎OBCA utilizes two types of optical radiation sources: ‎tungsten halogen lamps and white light LEDs. Here we report on the spectral and radiometric calibration of the OBCA qualification and flight model in the Reduced Background Calibration Facility 2 (RBCF2) of Physikalisch-Technische Bundesanstalt (PTB) [1]. The demanding requirements were to perform a calibration in air and in vacuum with an uncertainty of less than 2% with a spectral resolution of 0.1 nm over a wavelength range from 400 nm to 2500 nm not exceeding an operating time of 40 h for the halogen lamps and 100 h for the LEDs. Furthermore, a precise mapping of the OBCA exit aperture of size 2 mm by 24 mm with 1 mm sampling diameter had to be performed. For that purposes PTB developed a calibration procedure based on spectral comparisons of the OBCA with respect to dedicated vacuum radiance standards with an FTS in three wavelength ranges which were covered by three beamsplitter detector combinations. A dedicated imaging optics was designed transforming the F:3 opening of the OBCA to the F:8 opening ratio of the FTS and providing also the required small sampling area. Before and after their application, the dedicated vacuum qualified radiance standards were calibrated against the primary standards of PTB and corrected for the transition from air to vacuum and back to account for possible drifts of the sources. By this procedure a spectral and radiometric calibration of the OBCA traceable to the SI was achieved with the aspired uncertainties. [1] C. Monte et al, The new Reduced Background Calibration Facility 2 for Detectors, Cameras and Sources at the Physikalisch-Technische Bundesanstalt, Sensors, Systems, and Next-Generation Satellites SPIE 2018

Proceedings Article | 1 August 2016 Paper

Characterizing the cross dispersion reflection gratings of CRIRES+

Roman Follert, Dieter Taubert, Jörg Hollandt, Christian Monte, Ernesto Oliva, Ulf Seemann, Tom Löwinger, Heiko Anwand-Heerwart, Christof Schmidt, Reinhold Dorn, Paul Bristow, Artie Hatzes, Ansgar Reiners, Nikolai Piskunov, Ulrike Heiter, Eric Stempels, Thomas Marquart, Alexis Lavail, Claudio Cumani, Jason Grunhut, Andreas Haimerl, Renate Hinterschuster, Derek Ives, Yves Jung, Florian Kerber, Barbara Klein, Jean Louis Lizon, Ignacio Molina-Conde, Belinda Nicholson, Livia Origlia, Luca Pasquini, Jérôme Paufique, Jörg Stegmeier, Sebastien Tordo

Proceedings Volume 9912, 99122B (2016) https://doi.org/10.1117/12.2232569

KEYWORDS: Spectrographs, Infrared spectroscopy, Infrared spectroscopy, Mirrors, Sensors, Polarization, Signal detection, Polarizers, Mirror mounts, Infrared telescopes, Optical design

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Proceedings Article | 18 March 2016 Paper

Characterization of homogeneous tissue phantoms for performance tests in diffuse optics

Heidrun Wabnitz, Dieter Richard Taubert, Tsukasa Funane, Masashi Kiguchi, Hideo Eda, Antonio Pifferi, Alessandro Torricelli, Rainer Macdonald

Proceedings Volume 9700, 970004 (2016) https://doi.org/10.1117/12.2209038

KEYWORDS: Diffuse optical imaging, Scattering, Transmittance, Tissue optics, Near infrared spectroscopy, Optical properties, Absorption, Signal attenuation, Sensors, Power meters, Solids, Diffusion

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SPIE Journal Paper | 14 August 2014 Open Access

Performance assessment of time-domain optical brain imagers, part 1: basic instrumental performance protocol

Heidrun Wabnitz, Dieter Taubert, Mikhail Mazurenka, Oliver Steinkellner, Alexander Jelzow, Rainer Macdonald, Daniel Milej, Piotr Sawosz, Michał Kacprzak, Adam Liebert, Robert Cooper, Jeremy Hebden, Antonio Pifferi, Andrea Farina, Ilaria Bargigia, Davide Contini, Matteo Caffini, Lucia Zucchelli, Lorenzo Spinelli, Rinaldo Cubeddu, Alessandro Torricelli

JBO, Vol. 19, Issue 08, 086010, (August 2014) https://doi.org/10.1117/12.10.1117/1.JBO.19.8.086010

KEYWORDS: Neuroimaging, Brain, Imaging systems, Sensors, Tissue optics, Biomedical optics, In vivo imaging, Transmittance, Absorption, Solids

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Proceedings Article | 17 February 2011 Paper

Assessment of basic instrumental performance of time-domain optical brain imagers

Heidrun Wabnitz, Antonio Pifferi, Alessandro Torricelli, Dieter Taubert, Mikhail Mazurenka, Oliver Steinkellner, Alexander Jelzow, Andrea Farina, Ilaria Bargigia, Davide Contini, Matteo Caffini, Lucia Zucchelli, Lorenzo Spinelli, Piotr Sawosz, Adam Liebert, Rainer Macdonald, Rinaldo Cubeddu

Proceedings Volume 7896, 789602 (2011) https://doi.org/10.1117/12.874654

KEYWORDS: Neuroimaging, Brain, Imaging systems, Sensors, Tissue optics, Transmittance, Electronics, Photomultipliers, Brain imaging, Picosecond phenomena

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Proceedings Article | 23 September 2009 Paper

Traceable calibration of radiation sources from the visible to the far infrared for space borne applications at PTB

R. Taubert, C. Monte, B. Gutschwager, J. Hartmann, J. Hollandt

Proceedings Volume 7474, 747413 (2009) https://doi.org/10.1117/12.830082

KEYWORDS: Calibration, Sensors, Lamps, Black bodies, Thermography, Integrating spheres, Space operations, Temperature metrology, Infrared radiation, Tungsten

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