Dr. Fred A. Jansen Profile

Dr. Fred A. Jansen

at European Space Research and Technology Ctr

SPIE Involvement:

Author

SPIE Journal Paper | 3 February 2012

X-ray Multi-mirror Mission (XMM-Newton) observatory

David Lumb, Fred Jansen, Norbert Schartel

OE, Vol. 51, Issue 1, 011009, (February 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.1.011009

KEYWORDS: Charge-coupled devices, X-rays, Space telescopes, Telescopes, Mirrors, Sensors, Cameras, Space operations, Observatories, Roentgenium

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Proceedings Article | 3 February 2004 Paper

Timing accuracy and capabilities of XMM-Newton

Marcus Kirsch, Werner Becker, Sara Benlloch-Garcia, Fred Jansen, Eckhard Kendziorra, Markus Kuster, Uwe Lammers, Andy Pollock, Francesco Possanzini, Edmund Serpell, Antonio Talavera

Proceedings Volume 5165, (2004) https://doi.org/10.1117/12.503559

KEYWORDS: Oscillators, X-rays, Cameras, Space operations, Roentgenium, Photons, Ultraviolet radiation, Calibration, Temperature metrology, Charge-coupled devices

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Proceedings Article | 19 November 1998 Paper

Calibration of the first XMM flight mirror module: I. Image quality

Philippe Gondoin, Bernd Aschenbach, Marco Beijersbergen, Roland Egger, Fred Jansen, Yvan Stockman, Jean Tock

Proceedings Volume 3444, (1998) https://doi.org/10.1117/12.331243

KEYWORDS: Mirrors, Calibration, X-rays, Point spread functions, Charge-coupled devices, Image quality, Extreme ultraviolet, Grazing incidence, Scattering, Telescopes

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Proceedings Article | 19 November 1998 Paper

Calibration of the first XXM flight mirror module: II. Effective area

Philippe Gondoin, Bernd Aschenbach, Marco Beijersbergen, Roland Egger, Fred Jansen, Yvan Stockman, Jean Tock

Proceedings Volume 3444, (1998) https://doi.org/10.1117/12.331244

KEYWORDS: Mirrors, X-rays, Reflectivity, Calibration, Vignetting, Reflection, Extreme ultraviolet, Sensors, X-ray sources, Gold

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Proceedings Article | 10 November 1998 Paper

XMM science simulator: EPIC mode performance issues

David Lumb, J. Bakker, Marco Beijersbergen, J. Brumfitt, K. Galloway, L. Jalota, Fred Jansen, H. Siddiqui, Giuseppe Vacanti, Igor Zayer

Proceedings Volume 3445, (1998) https://doi.org/10.1117/12.330323

KEYWORDS: Charge-coupled devices, Calibration, Cameras, Device simulation, Monte Carlo methods, Mirrors, Molybdenum, Point spread functions, Observatories, X-rays

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Proceedings Article | 15 October 1997 Paper

Development of a superconducting-tunnel-junction array for x-ray astronomy

Roland den Hartog, Anthony Peacock, Peter Verhoeve, Fred Jansen, J. Verveer, Axel van Dordrecht, J. Salmi, R. Venn

Proceedings Volume 3114, (1997) https://doi.org/10.1117/12.283776

KEYWORDS: Electrodes, Magnetism, Niobium, Sensors, Electronics, X-rays, Superconductors, Phonons, X-ray detectors, Signal detection

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Proceedings Article | 31 October 1996 Paper

Superconducting tunneling junctions: performance and physics of alternative barrier structures

Fred Jansen, Anthony Peacock, Nicola Rando, Peter Verhoeve, Roland den Hartog, J. Salmi, Ilkka Sunni

Proceedings Volume 2808, (1996) https://doi.org/10.1117/12.256024

KEYWORDS: Superconductors, Semiconducting wafers, Niobium, Particles, Photomasks, X-rays, Diagnostics, Signal detection, Aluminum, Physics

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Proceedings Article | 16 September 1994 Paper

Integrated x-ray testing of the electro-optical breadboard model for the X-ray Multimirror Mission (XMM) reflection grating spectrometer

Jay Bixler, Henry Aarts, Wolfgang Burkert, Antonius den Boggende, Graziella Branduardi-Raymont, Heinrich Braeuninger, A. Brinkman, William Craig, Todd Decker, Luc Dubbeldam, Christian Erd, Charles Hailey, Jan-Willem den Herder, Fred Jansen, Steven Kahn, Piet de Korte, C. Mauche, Frits Paerels, Knud Thomsen

Proceedings Volume 2280, (1994) https://doi.org/10.1117/12.186828

KEYWORDS: X-rays, Mirrors, Charge-coupled devices, Roentgenium, Telescopes, Diffraction gratings, Electro optical modeling, Sensors, Spectroscopy, Tolerancing

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Proceedings Article | 13 September 1994 Paper

Reflection grating spectrometer onboard the ESA x-ray multi-mirror (XMM) mission

Jan-Willem den Herder, Henry Aarts, Marcel van den Berg, Jay Bixler, Antonius den Boggende, Graziella Branduardi-Raymont, A. Brinkman, Todd Decker, Luc Dubbeldam, Charles Hailey, Fred Jansen, Steven Kahn, Piet de Korte, C. Mauche, Richard Montesanti, Frits Paerels, Hugo Spruijt, Knud Thomsen, Peter Verhoeve, Alex Zehnder

Proceedings Volume 2209, (1994) https://doi.org/10.1117/12.185279

KEYWORDS: Mirrors, Charge-coupled devices, X-rays, Roentgenium, Cameras, X-ray telescopes, Back illuminated sensors, CCD cameras, Spectral resolution, Telescopes

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The Reflection Grating Spectrometer (RGS) onboard the ESA satellite XMM (X-ray Multi Mirror mission) combines a high resolving power (approximately 400 at 0.5 keV) with a large effective area (approximately 200 cm²). The spectral range selected for RGS (5 - 35 angstroms) contains the K shell transitions of N, O, Ne, Mg, Al, Si and S as well as the important L shell transitions of FE. The resolving power allows the study of a wide variety of challenging scientific questions. Detailed temperature diagnostics are feasible as the ionization balance is a unique function of the distribution of the electron temperature. Density diagnostics are provided by studying He-like triplets where the ratio of the forbidden to intercombination lines varies with density. Other fields of interest include the determination of elemental abundances, the study of optical depth effects, velocity diagnostics by measuring Doppler shifts and the estimate of magnetic fields through the observation of Zeeman splitting. The resolving power is obtained by an array of 240 gratings placed behind the mirrors of the telescope, dispersing about half of the X-rays in two spectroscopic orders. The X-rays are recorded by an array of 9 large format CCDs. These CCDs are operated in the frame transfer mode. They are back illuminated as the quantum efficiency of front illuminated devices is poor at low energies because of their poly-silicon gate structure. To suppress dark current the CCDs are passively cooled. In order to obtain the effective area of about 200 cm², grating arrays and CCD cameras are placed behind two of the three XMM telescopes. A model of RGS was tested last autumn ('93) at the Panter long beam X-ray facility in Munich. The model consisted of a subset of four mirrors, eight representative gratings covering a small section of the inner mirror shells and a CCD camera containing three CCDs. The purpose of these tests was to verify the resolution and sensitivity of the instrument as a function of X-ray energy. Extensive simulations, using a Monte Carlo raytracing code, are used to interpret these tests. Preliminary results of these tests will be discussed and compared to the calculated response.

Proceedings Article | 1 November 1990 Paper

Soft x-ray performance of back-illuminated EEV CCDs

Philip Bailey, M. Cross, Peter Pool, Christian Castelli, Andrew Holland, David Lumb, P. van Essen, Peter Verhoeve, Fred Jansen, Piet de Korte

Proceedings Volume 1344, (1990) https://doi.org/10.1117/12.23264

KEYWORDS: Charge-coupled devices, X-rays, X-ray astronomy, Extreme ultraviolet, Gamma radiation, Electrons, Spectroscopy, Energy efficiency, Silicon, Cameras

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Showing 5 of 10 publications

Conference Committee Involvement (2)

X-ray and Gamma-ray Telescopes and Instruments for Astronomy

24 August 2002 | Waikoloa, Hawai'i, United States

X-Ray Optics, Instruments, and Missions III

27 March 2000 | Munich, Germany

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