CONFERENCE PROCEEDINGS
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Jeroen Herrewijnen
at ASTRON
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Publications (3)
Proceedings Article | 18 July 2024 Poster + Paper
Design of the antenna processing subrack, a new beamformer for LOFAR
Gijs Schoonderbeek, Paulus Kruger, Jeroen Herrewijnen, Boudewijn Hut, Sieds Damstra, Paula Fusiara, Henri Meulman, Mark Ruiter, Ágnes Mika, Federico Perini, Jader Monari
Proceedings Volume 13096, 130966N (2024) https://doi.org/10.1117/12.3018795
KEYWORDS: Antennas, Design, Signal processing, Clocks, Phased arrays, Analog to digital converters, Digital signal processing, Electromagnetic coupling, Field programmable gate arrays
Proceedings Article | 29 August 2022 Poster + Paper
4MOST calibration system: design, assembly, and testing
Ioannis Politopoulos, Johan Pragt, Rik ter Horst, Ronald Roelfsema, Olga Bellido-Tirado, Joar Brynnel, Steffen Frey, Amina Helmi, Jeroen Herrewijnen, Roelof de Jong, Michael Lehmitz, Ramon Navarro, Allar Saviauk, Ray Sharples, Luke Tyas, Jurgen Schmoll, Walter Seifert, Menno de Haan, Menno Schuil, Eddy Elswijk, Eduardo Balbinot
Proceedings Volume 12184, 1218473 (2022) https://doi.org/10.1117/12.2629542
KEYWORDS: Calibration, Spectrographs, Integrating spheres, Telescopes, Fabry–Perot interferometers, Lamps, Camera shutters, Sensors, Mirrors, Lawrencium
Proceedings Article | 10 July 2018 Paper
Calibration system for the 4MOST multi object fiber-fed spectrographs
Ronald Roelfsema, Johan Pragt, Rik ter Horst, Tibor Agocs, Olga Bellido, Joar Brynnel, Ariadna Calcines-Rosario, Steffen Frey, Amina Helmi, Jeroen Herrewijnen, Tom Houtsma, Roelof de Jong, Michael Lehmitz, Graham Murray, Gert Musters, Ramon Navarro, Allar Saviauk, Olivier Schnurr, Ray Sharples, Roland Winkler
Proceedings Volume 10702, 107027V (2018) https://doi.org/10.1117/12.2312473
KEYWORDS: Calibration, Fabry–Perot interferometers, Telescopes, Integrating spheres, Lamps, Spectrographs, Light sources, Beam splitters, Astronomical imaging, Spectrometers
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