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Malvar, O. (author), Gil-Santos, E. (author), Ruz, J.J. (author), Sentre-Arribas, E. (author), Sanz-Jimenez, A. (author), Kosaka, P.M. (author), Garcia-Lopez, S. (author), Paulo, A.S. (author), Sbarra, S. (author), Waquier, L. (author), Favero, I. (author), Van Der Heiden, M. (author), Altmann, R.K. (author), Papanastasiou, D. (author), Kounadis, D. (author), Panagiotopoulos, I. (author), Mingorance, J. (author), Rodriguez-Tejedor, M. (author), Delgado, R. (author), Calleja, M. (author), Tamayo, J. (author)Nanomechanical mass spectrometry allows characterization of analytes with broad mass range, from small proteins to bacterial cells, and with unprecedented mass sensitivity. In this work, we show a novel multifrequency nanomechanical mass spectrometer prototype designed for focusing, guiding and soft-landing of nanoparticles and viral particles...conference paper 2023
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Otter, G.C.J. (author), Day, J.P.R. (author), Di Iorio, E. (author), Pelica Páscoa, M.I. (author), Speet, B.G. (author), Dijkhuizen, N. (author), Snel, R.C. (author), van der Togt, O.E. (author)The cheapest method for an instrument to perform radiometric monitoring in orbit is to compare its radiometric response from a scene to the known radiance of that same scene. This is known as vicarious calibration. The known radiance of this scene comes mostly from other space instruments. The limiting factors of this vicarious calibration...conference paper 2021
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Köhler, J. (author), Jansen, R. (author), Irizar, J. (author), Sohmer, A. (author), Melf, M. (author), Greinacher, R. (author), Erdmann, M. (author), Kirschner, V. (author), Pérez Albiñana, A. (author), Martin, D. (author), de Goeij, B.T.G. (author), Vink, H.J.P. (author), Day, J.P.R. (author), ten Bloemendal, D. (author), Gielesen, W.L.M. (author), de Vreugd, J. (author), van der Laan, L.W. (author), van 't Hof, C.A. (author)Sentinel-5 is an Earth atmospheric monitoring mission developed within the European Union’s Copernicus program. The mission objective is to monitor the composition of the Earth’s atmosphere on a daily basis. Airbus DS GmbH acts as the prime contractor under a European Space Agency contract. The instrument design, development, and the instrument...conference paper 2021
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- Jongeneel, C. (author) article 2020
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Kreher, K. (author), van Roozendael, M. (author), Hendrick, F. (author), Apituley, A. (author), Dimitropoulou, E. (author), Friess, U. (author), Richter, A. (author), Wagner, T. (author), Lampel, J. (author), Abuhassan, N. (author), Ang, L. (author), Anguas, M. (author), Bais, A. (author), Benavent, N. (author), Bosch, T. (author), Bognar, K. (author), Borovski, A. (author), Bruchkouski, I. (author), Cede, A. (author), lok Chan, K. (author), Donner, S. (author), Drosoglou, T. (author), Fayt, C. (author), Finkenzeller, H. (author), Garcia-Nieto, D. (author), Gielen, C. (author), Gómez-Martín, L. (author), Hao, N. (author), Henzing, B. (author), Herman, J. (author), Hermans, C. (author), Hoque, S. (author), Irie, H. (author), Jin, J. (author), Johnston, P. (author), khayyam Butt, J. (author), Khokhar, F. (author), Koenig, T. (author), Kuhn, J. (author), Kumar, V. (author), Liu, C. (author), Ma, J. (author), Merlaud, A. (author), Mishra, A. (author), Müller, M. (author), Navarro-Comas, M. (author), Ostendorf, M. (author), Pazmino, A. (author), Peters, E. (author), Pinardi, G. (author), Pinharanda, M. (author), Piters, A. (author), Platt, U. (author), Postylyakov, O. (author), Prados-Roman, C. (author), Puentedura, O. (author), Querel, R. (author), Saiz-Lopez, A. (author), Schonhardt, A. (author), Schreier, S. (author), Sinha, V. (author), Spinei, E. (author), Strong, K. (author), Tack, F. (author), Tian, X. (author), Tiefengraber, M. (author), van Gent, J. (author), Volkamer, R. (author), Vrekoussis, M. (author), Wang, S. (author), Wang, Z. (author), Wenig, M. (author), Wittrock, F. (author), Xie, P. (author), Xu, J. (author), Yela, M. (author), Zhang, C. (author), Zhao, X. (author)In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants for a period of 17 d during the Second Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2) that took place at Cabauw, the Netherlands (51.97-N, 4.93-E). We report on the outcome of the formal semi-blind...article 2020
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Sweelssen, J. (author), Blokland, H. (author), Rajamaki, T. (author), Boersma, A. (author)Liquid Natural Gas (LNG) is an energy source that is becoming more important in energy transition, as the world is facing lower the CO2 emissions and backup sources for wind and solar energy are needed. LNG is becoming a major player not only as fuel for power plants, but also in transport and mobility. However, the composition of LNG varies...article 2020
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Sweelssen, J. (author), Blokland, H. (author), Rajamäki, T. (author), Sarjonen, R. (author), Boersma, A. (author)The energy market is facing a major transition, in which natural gas and renewable gasses will play an important role. However, changing gas sources and compositions will force the gas transporters, gas engine manufacturers, and gas grid operators to monitor the gas quality in a more intensive way. This leads to the need for lower cost, smaller,...article 2020
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Court, A.J. (author)In 2005 ESA initiated a study for a spectrometer combining Raman and Laser Induced Breakdown Spectroscopy (LIBS)as a potential instrument for the Pasteur payload of the ESA ExoMars rover. It is a fundamental, next-generation instrument for organic, mineralogical and elemental characterization of soil, rock samples and organic molecules. The...conference paper 2019
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Jansen, R. (author), Day, J.P.R. (author), Vink, H.J.P. (author), de Vreugd, J. (author), van Beekum, E.R.J. (author), van der Laan, L.W. (author), van 't Hof, A.C.A. (author), Gielesen, W.L.M. (author), Koehler, J. (author)Sentinel-5 is an Earth atmospheric monitoring mission developed within the Copernicus program. The mission objective is to monitor the composition of the Earth's atmosphere on a daily basis. TNO is developing the UV1 spectrometer subsystem as well as the two telescope subsystems. In this paper, the design of the UV1 spectrometer is described and...conference paper 2019
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Peternella, F.G. (author), Esselink, T. (author), Dorsman, B. (author), Harmsma, P.J. (author), Horsten, R.C. (author), Zuidwijk, T. (author), Urbach, H.P. (author), Adam, A.L.C. (author)In this paper, the design and the characterization of a novel interrogator based on integrated Fourier transform (FT) spectroscopy is presented. To the best of our knowledge, this is the first integrated FT spectrometer used for the interrogation of photonic sensors. It consists of a planar spatial heterodyne spectrometer, which is implemented...article 2019
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Caron, J.F. (author), Kruizinga, B. (author), Vink, H.J.P. (author)Tropomi, successfully launched in October 2017, and Sentinel-5, with launch due in 2021, are two pushbroom spectrometers measuring Earth's radiance from a Low Earth Orbit (LEO) at a high spectral resolution. Both instruments have strongly overlapping spectral channels (UV-VIS, NIR, SWIR-3). While the Tropomi spectrometers are designed with...conference paper 2018
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Court, A.J. (author), Bezy, J.L. (author), Levelt, P. (author), Siegl, M. (author), Leemhuis, A.P. (author), van de Valk, N.C.J. (author), Veefkind, P. (author)The impact of NO2 and other atmospheric trace gases on health and the environment is now acknowledged by governments around the world. The sources, both natural and anthropogenic, have been shown to affect the quality of life due to low air quality in densely populated areas. Consequently, the need for accurate global NO2 measurements with high...conference paper 2018
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Nijkerk, M.D. (author), Gruber, J.M. (author), Boonacker, B. (author)We present a novel optical design tool that makes use of an evolutionary global optimization algorithm. The algorithm has several characteristics that make it well-suited for freeform optics design. With the design tool it is no longer necessary to make the distinction between paraxial degrees of freedom and degrees of freedom related to...conference paper 2018
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Lesundak, A. (author), Voigt, D. (author), Cip, O. (author), van den Berg, S. (author)Homodyne interferometry with a frequency comb as multi-wavelength source is a powerful method to measure long distances with high accuracy. The measurement principle requires that individual comb modes are spectrally resolved, making hundreds or thousands of accurately known wavelengths available for interferometry. For this reason the method...article 2017
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de Goeij, B.T.G. (author), Otter, G.C.J. (author), van Wakeren, J.M.O. (author), Veefkind, J.P. (author), Vlemmix, T. (author), Ge, X. (author), Levelt, P.F. (author), Dirks, B.P.F. (author), Toet, P.M. (author), van der Wal, L.F. (author), Jansen, R. (author)In recent years TNO has investigated and developed different innovative opto-mechanical designs to realize advanced spectrometers for space applications in a more compact and cost-effective manner. This offers multiple advantages: a compact instrument can be flown on a much smaller platform or as add-on on a larger platform; a low-cost...conference paper 2017
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Otter, G.C.J. (author), Dijkhuizen, N. (author), Vosteen, L.L.A. (author), Brinkers, S. (author), Gür, B. (author), Kenter, P. (author)The Global Ozone Monitoring Experiment-2(GOME-2) represents one of the European instruments carried on board the MetOp satellite within the ESA’s “Living Planet Program”. Consisting of three flight models (FM’s) it is intended to provide long-term monitoring of atmospheric ozone and other trace gases over a time frame of 15–20 years, thus...conference paper 2017
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Otter, G. (author), Dijkhuizen, N. (author), Vosteen, A. (author), Brinkers, S. (author), Gür, B. (author), Kenter, P. (author), Sallusti, M. (author), Tomuta, D. (author), Veratti, R. (author), Cappani, A. (author)The Global Ozone Monitoring Experiment-2[1] (GOME-2) represents one of the European instruments carried on board the MetOp satellite within the ESA’s “Living Planet Program”. Consisting of three flight models (FM’s) it is intended to provide long-term monitoring of atmospheric ozone and other trace gases over a time frame of 15-20 years, thus...conference paper 2017
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Smorenburg, K. (author), Visser, H. (author), Court, A.J. (author), Stoll, M.P. (author), Technisch Physische Dienst TNO - TH (author)Detection of vegetation fluorescence gives information about plant functioning, stress and vitality. During the past decades several ground based laser fluorosensors have been developed to investigate these processes and to demonstrate the value of this technique. FLEX (= FLuorescense EXplorer) is a space mission to measure the fluorescence of...conference paper 2017
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Snijders, B. (author), van der Wal, L.F. (author), de Goeij, B.T.G. (author), Jansen, R. (author), Toet, P. (author), Oosterling, J.A.J. (author)Driven by technology developments triggering end user’s attention, the market for nano-and micro satellites is developing rapidly. At present there is a strong focus on 2D imaging of the Earth’s surface, with limited possibilities to obtain high resolution spectral information. More demanding applications, such as monitoring trace gases,...conference paper 2017
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Tromp, P.C. (author), Kuijpers, E. (author), Bekker, C. (author), Godderis, L. (author), Lan, Q. (author), Jedynska, A.D. (author), Vermeulen, R. (author), Pronk, A. (author)To date there is no consensus about the most appropriate analytical method for measuring carbon nanotubes (CNTs), hampering the assessment and limiting the comparison of data. The goal of this study is to develop an approach for the assessment of the level and nature of inhalable multi-wall CNTs (MWCNTs) in an actual workplace setting by...article 2017