Dr. Matteo Porro Profile

Dr. Matteo Porro

Engineer at Max Planck Institut fur extraterrestrische Physik

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Publications (19)

PROCEEDINGS ARTICLE | July 11, 2016

Studies of prototype DEPFET sensors for the wide field imager of Athena

Proc. SPIE. 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray

KEYWORDS: Staring arrays, Electronics, Imaging systems, Sensors, Sensors, Photons, X-rays, Data processing, Field effect transistors, Field effect transistors, Analog electronics, Space operations

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SPIE Journal Paper | December 30, 2014

Wide field imager instrument for the Advanced Telescope for High Energy Astrophysics

Meidinger, Norbert , Nandra, Kirpal , Plattner, Markus , Porro, Matteo , Rau, Arne , Santangelo, Andrea , Tenzer, Chris , Wilms, Jörn

JATIS Vol. 1 Issue 01

KEYWORDS: Sensors, Field effect transistors, Imaging systems, Cameras, Electronics, Optical filters, Photons, Mirrors, High energy astrophysics, Telescopes

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PROCEEDINGS ARTICLE | July 31, 2014

Development of DEPFET active pixel sensors to improve the spectroscopic response for high time resolution applications

Proc. SPIE. 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray

KEYWORDS: Switching, Sensors, Electrons, Image resolution, Signal processing, Measurement devices, Field effect transistors, Pulsed laser operation, Active sensors, Camera shutters

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PROCEEDINGS ARTICLE | July 25, 2014

VERITAS 2.0 a multi-channel readout ASIC suitable for the DEPFET arrays of the WFI for Athena

Proc. SPIE. 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray

KEYWORDS: Electronics, Sensors, Spectroscopy, Electrons, Capacitance, Signal processing, Field effect transistors, Analog electronics, Signal detection, Prototyping

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PROCEEDINGS ARTICLE | July 24, 2014

The wide field imager instrument for Athena

Proc. SPIE. 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray

KEYWORDS: Optical filters, Mirrors, Imaging systems, Cameras, Sensors, X-rays, Control systems, Signal processing, Field effect transistors, Analog electronics

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The "Hot and Energetic Universe" has been selected as the science theme for ESA's L2 mission, scheduled for launch in 2028. The proposed Athena X-ray observatory provides the necessary capabilities to achieve the ambitious goals of the science theme. The X-ray mirrors are based on silicon pore optics technology and will have a 12 m focal length. Two complementary camera systems are foreseen which can be moved in and out of the focal plane by an interchange mechanism. These instruments are the actively shielded micro-calorimeter spectrometer X-IFU and the Wide Field Imager (WFI). The WFI will combine an unprecedented survey power through its large field of view of 40 arcmin with a high countrate capability (approx. 1 Crab). It permits a state-of-the-art energy resolution in the energy band of 0.1 keV to 15 keV during the entire mission lifetime (e.g. FWHM ≤ 150 eV at 6 keV). This performance is accomplished by a set of DEPFET active pixel sensor matrices with a pixel size matching the angular resolution of 5 arcsec (on-axis) of the mirror system. Each DEPFET pixel is a combined detector-amplifier structure with a MOSFET integrated onto a fully depleted 450 micron thick silicon bulk. The signal electrons generated by an X-ray photon are collected in a so-called internal gate below the transistor channel. The resulting change of the conductivity of the transistor channel is proportional to the number of electrons and thus a measure for the photon energy. DEPFETs have already been developed for the "Mercury Imaging X-ray Spectrometer" on-board of ESA’s BepiColombo mission. For Athena we develop enhanced sensors with integrated electronic shutter and an additional analog storage area in each pixel. These features improve the peak-to-background ratio of the spectra and minimize dead time. The sensor will be read out with a new, fast, low-noise multi-channel analog signal processor with integrated sequencer and serial analog output. The architecture of sensor and readout ASIC allows readout in full frame mode and window mode as well by addressing selectively arbitrary sub-areas of the sensor allowing time resolution in the order of 10 μs. The further detector electronics has mainly the following tasks: digitization, pre-processing and telemetry of event data as well as supply and control of the detector system. Although the sensor will already be equipped with an on-chip light blocking filter, a filter wheel is necessary to provide an additional external filter, an on-board calibration source, an open position for outgassing, and a closed position for protection of the sensor. The sensor concept provides high quantum efficiency over the entire energy band and we intend to keep the instrumental background as low as possible by designing a graded Z-shield around the sensor. All these properties make the WFI a very powerful survey instrument, significantly surpassing currently existing observatories and in addition allow high-time resolution of the brightest X-ray sources with low pile-up and high efficiency. This manuscript will summarize the current instrument concept and design, the status of the technology development, and the envisaged baseline performance.

PROCEEDINGS ARTICLE | September 25, 2012

Integration and calibration of DEPFET macropixel detectors for MIXS

Proc. SPIE. 8453, High Energy, Optical, and Infrared Detectors for Astronomy V

KEYWORDS: Sensors, Calibration, Spectroscopy, X-rays, Electrons, Field effect transistors, X-ray detectors, Spectroscopes, Temperature metrology, Mercury (planet)

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PROCEEDINGS ARTICLE | September 25, 2012

New simulation and measurement results on gateable DEPFET devices

Proc. SPIE. 8453, High Energy, Optical, and Infrared Detectors for Astronomy V

KEYWORDS: X-ray optics, Switching, Sensors, Electrons, Field effect transistors, Supercontinuum generation, Charge-coupled devices, Analog electronics, Molybdenum, Camera shutters

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PROCEEDINGS ARTICLE | July 29, 2010

VELA: a fast DEPFET readout circuit for the NHXM Mission

Proc. SPIE. 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray

KEYWORDS: Light emitting diodes, Polarization, Sensors, Electrons, Image resolution, Imaging spectroscopy, Space telescopes, Field effect transistors, X-ray imaging, X-ray telescopes

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PROCEEDINGS ARTICLE | July 29, 2010

The wide-field imager for IXO: status and future activities

Proc. SPIE. 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray

KEYWORDS: Point spread functions, Imaging systems, Sensors, Spectroscopy, X-rays, Electrons, Field effect transistors, X-ray imaging, Active sensors, Prototyping

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PROCEEDINGS ARTICLE | July 16, 2010

The IXO wide-field imager

Proc. SPIE. 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV

KEYWORDS: Point spread functions, Imaging systems, Sensors, Spectroscopy, X-rays, Electrons, Amplifiers, Field effect transistors, X-ray imaging, Active sensors

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PROCEEDINGS ARTICLE | July 3, 2010

The DEPFET-based focal plane detectors for MIXS on BepiColombo

Proc. SPIE. 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV

KEYWORDS: Staring arrays, X-ray optics, Electronics, Sensors, X-rays, Silicon, Field effect transistors, X-ray detectors, Mercury (planet), Asteroids

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PROCEEDINGS ARTICLE | September 4, 2009

DEPFET-based instrumentation for the MIXS focal plane on BepiColombo

Proc. SPIE. 7441, Instruments and Methods for Astrobiology and Planetary Missions XII

KEYWORDS: Staring arrays, Electronics, Sensors, Annealing, X-rays, Field effect transistors, Analog electronics, X-ray detectors, Mercury (planet), Asteroids

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PROCEEDINGS ARTICLE | August 21, 2009

The wide field imager for the International X-ray Observatory

Proc. SPIE. 7435, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVI

KEYWORDS: Sensors, X-rays, Silicon, Quantum efficiency, Field programmable gate arrays, Field effect transistors, Analog electronics, Space operations, X-ray imaging, Prototyping

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PROCEEDINGS ARTICLE | July 24, 2008

DEPFET based x-ray detectors for the MIXS focal plane on BepiColombo

Proc. SPIE. 7021, High Energy, Optical, and Infrared Detectors for Astronomy III

KEYWORDS: Staring arrays, Electronics, Sensors, Spectroscopy, Annealing, X-rays, Field effect transistors, X-ray detectors, Prototyping, Mercury (planet)

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PROCEEDINGS ARTICLE | July 22, 2008

New DEPFET structures: concepts, simulations, and experimental results

Proc. SPIE. 7021, High Energy, Optical, and Infrared Detectors for Astronomy III

KEYWORDS: Semiconductors, Sensors, Photons, X-rays, Adaptive optics, Transistors, Field effect transistors, Synchrotron radiation, X-ray astronomy, X-ray detectors

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PROCEEDINGS ARTICLE | June 15, 2006

Advancements in DEPMOSFET device developments for XEUS

Proc. SPIE. 6276, High Energy, Optical, and Infrared Detectors for Astronomy II

KEYWORDS: Electronics, Sensors, Electrons, Imaging spectroscopy, Amplifiers, Transistors, Field effect transistors, Analog electronics, Prototyping, Temperature metrology

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PROCEEDINGS ARTICLE | August 18, 2005

Noise and spectroscopic performance of DEPMOSFET matrix devices for XEUS

Proc. SPIE. 5898, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIV

KEYWORDS: Electronics, Sensors, Imaging spectroscopy, Signal processing, Spectral resolution, Transistors, Field effect transistors, Spectroscopes, Prototyping, Temperature metrology

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PROCEEDINGS ARTICLE | September 29, 2004

First results of DEPFET-based active-pixel-sensor prototypes for the XEUS wide-field imager

Proc. SPIE. 5501, High-Energy Detectors in Astronomy

KEYWORDS: Imaging systems, Sensors, Electrons, Field programmable gate arrays, Signal processing, Transistors, Cadmium sulfide, Field effect transistors, Analog electronics, Prototyping

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PROCEEDINGS ARTICLE | February 3, 2004

XEUS wide-field imager: first experimental results with the x-ray active pixel sensor DEPFET

Proc. SPIE. 5165, X-Ray and Gamma-Ray Instrumentation for Astronomy XIII

KEYWORDS: Imaging systems, Sensors, Photons, X-rays, Transistors, Field effect transistors, Charge-coupled devices, Space operations, X-ray imaging, Active sensors

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Showing 5 of 19 publications

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