Prof. Francisco J. Castander Profile

Prof. Francisco J. Castander

at Institut d'Estudis Espacials de Catalunya

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Euclid mission status after mission critical design

R. Laureijs, G. Racca, Y. Mellier, P. Musi, L. Brouard, T. Böenke, L. Gaspar Venancio, E. Maiorano, A. Short, P. Strada, B. Altieri, G. Buenadicha, X. Dupac, P. Gomez Alvarez, J. Hoar, R. Kohley, R. Vavrek, A. Rudolph, M. Schmidt, J. Amiaux, H. Aussel, M. Berthé, M. Cropper, J.-C. Cuillandre, C. Dabin, J. Dinis, R. Nakajima, T. Maciaszek, R. Scaramella, A. da Silva, I. Tereno, O. Williams, A. Zacchei, R. Azzollini, F. Bernardeau, J. Brinchmann, C. Brockley-Blatt, F. Castander, A. Cimatti, C. Conselice, A. Ealet, P. Fosalba, W. Gillard, L. Guzzo, H. Hoekstra, P. Hudelot, K. Jahnke, T. Kitching, L. Miller, J. Mohr, W. Percival, V. Pettorino, J. Rhodes, A. Sanchez, M. Sauvage, S. Serrano, R. Teyssier, J. Weller, J. Zoubian

Proceedings Volume 11443, 114430F (2020) https://doi.org/10.1117/12.2563145

KEYWORDS: Image segmentation, Galactic astronomy, Data acquisition, Aerospace engineering, Space operations, Telescopes, Image quality, Point spread functions, Calibration, Photometry

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Proceedings Article | 6 July 2018 Presentation + Paper

Presentation + Paper

The DESI instrument control systems: status and early testing

K. Honscheid, A. Elliott, E. Buckley-Geer, B. Abreshi, F. Castander, L. da Costa, S. Kent, D. Kirkby, R. Marshall, E. Neilsen, R. Ogando, D. Rabinowitz, A. Roodman, S. Serrano, D. Brooks, M. Levi, G. Tarle

Proceedings Volume 10707, 107071D (2018) https://doi.org/10.1117/12.2311927

KEYWORDS: Control systems, Spectrographs, Cameras, Telescopes, Databases, Imaging systems, Stars, Human-machine interfaces, Computing systems, Charge-coupled devices

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Proceedings Article | 9 August 2016 Paper

Paper

ProtoDESI: risk reduction experiment for the Dark Energy Spectroscopic Instrument

Parker Fagrelius, Charles Baltay, Christopher Bebek, Robert Besuner, Francisco Castander, Arjun Dey, Elizabeth Buckley-Geer, Ann Elliott, William Emmet, Brenna Flaugher, Irena Gershkovich, Klaus Honscheid, Dick Joyce, Stephen Kent, Robert Marshall, Ronald Probst, David Rabinowitz, Kevin Reil, David Schlegel, Michael Schubnell, Santiago Serrano, Joseph Silber, David Sprayberry, Greg Tarle

Proceedings Volume 9908, 99087X (2016) https://doi.org/10.1117/12.2231760

KEYWORDS: Galactic astronomy, Telescopes, Control systems, Spectroscopes, Cameras, Stars, Robotics, Light emitting diodes, Photometry, Astronomy

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The Dark Energy Spectroscopic Instrument (DESI) is under construction to measure the expansion history of the Universe using the Baryon Acoustic Oscillation technique. The spectra of 40 million galaxies over 14,000 sq. deg. will be measured during the life of the experiment. A new prime focus corrector for the KPNO Mayall telescope will deliver light to 5000 fiber optic positioners. The fibers in turn feed ten broad-band spectrographs. We describe the ProtoDESI experiment, planned for installation and commissioning at the Mayall telescope in the fall of 2016, which will test the fiber positioning system for DESI. The ProtoDESI focal plate, consisting of 10 fiber positioners, illuminated fiducials, and a guide, focus and alignment (GFA) sensor module, will be installed behind the existing Mosaic prime focus corrector. A Fiber View Camera (FVC) will be mounted to the lower surface of the primary mirror cell and a subset of the Instrument Control System (ICS) will control the ProtoDESI subsystems, communicate with the Telescope Control System (TCS), and collect instrument monitoring data. Short optical fibers from the positioners will be routed to the back of the focal plane where they will be imaged by the Fiber Photometry Camera (FPC) or back-illuminated by a LED system. Target objects will be identified relative to guide stars, and using the GFA in a control loop with the ICS/TCS system, the guide stars will remain stable on pre-identified GFA pixels. The fiber positioners will then be commanded to the target locations and placed on the targets iteratively, using the FVC to centroid on back-illuminated fibers and fiducials to make corrective delta motions. When the positioners are aligned with the targets on-sky, the FPC will measure the intensities from the positioners’ fibers which can then be dithered to look for intensity changes, indicating how well the fibers were initially positioned on target centers. The final goal is to operate ProtoDESI on the Mayall telescope for a 6-hour period during one night, successfully placing targets on the intended fibers for the duration of a typical DESI science exposure.

Proceedings Article | 9 August 2016 Paper

Paper

Characterization and performance of PAUCam filters

R. Casas, L. Cardiel-Sas, F. J. Castander, C. Díaz, J. Gaweda, J. Jiménez Rojas, S. Jiménez, M. Lamensans, C. Padilla, F. J. Rodriguez, E. Sanchez , I. Sevilla Noarbe

Proceedings Volume 9908, 99084K (2016) https://doi.org/10.1117/12.2232422

KEYWORDS: Optical filters, Cameras, Manufacturing, Telescopes, Charge-coupled devices, Calibration, Spectrophotometry, Photodiodes, Camera shutters, Imaging systems

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Proceedings Article | 9 August 2016 Paper

Paper

The PAU camera carbon fiber cryostat and filter interchange system

Luis Lopez, Cristóbal Padilla, Laia Cardiel-Sas, Otger Ballester, Ferràn Grañena, Ester Majà, Francisco Castander

Proceedings Volume 9908, 99084G (2016) https://doi.org/10.1117/12.2232294

KEYWORDS: Cameras, Optical filters, Carbon, Imaging systems, Telescopes, Imaging systems, Cooling systems, Content addressable memory, Charge-coupled devices, Aluminum, CCD cameras

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Proceedings Article | 8 August 2016 Paper

Paper

The DESI instrument control system

K. Honscheid, A. Elliott, L. Beaufore, E. Buckley-Geer, F. Castander, L. daCosta, A. Fausti, S. Kent, D. Kirkby, E. Neilsen, K. Reil, S. Serrano, A. Slozar

Proceedings Volume 9913, 99130P (2016) https://doi.org/10.1117/12.2229835

KEYWORDS: Spectrographs, Telescopes, Control systems, Databases, Cameras, Stars, Charge-coupled devices, Imaging systems, Image analysis, Image processing

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Proceedings Article | 15 July 2016 Paper

Paper

The dark energy survey and operations: years 1 to 3

H. T. Diehl, E. Neilsen, R. Gruendl, B. Yanny, T. M. Abbott, J. Aleksić, S. Allam, J. Annis, E. Balbinot, M. Baumer, L. Beaufore, K. Bechtol, G. Bernstein, S. Birrer, C. Bonnett, D. Brout, C. Bruderer, E. Buckley-Geer, D. Capozzi, A. Carnero Rosell, F. Castander, R. Cawthon, C. Chang, L. Clerkin, R. Covarrubias, C. Cuhna, C. D'Andrea, L. da Costa, R. Das, C. Davis, J. Dietrich, A. Drlica-Wagner, A. Elliott, T. Eifler, J. Etherington, B. Flaugher, J. Frieman, A. Fausti Neto, M. Fernández, C. Furlanetto, D. Gangkofner, D. Gerdes, D. Goldstein, K. Grabowski, R. Gupta, S. Hamilton, H. Head, J. Helsby, D. Hollowood, K. Honscheid, D. James, M. Johnson, S. Jouvel, T. Kacprzac, S. Kent, R. Kessler, A. Kim, E. Krause, C. Krawiec, A. Kremin, R. Kron, S. Kuhlmann, N. Kuropatkin, O. Lahav, J. Lasker, T. Li, E. Luque, N. Maccrann, M. March, J. Marshall, N. Mondrik, E. Morganson, D. Mudd, A. Nadolski, P. Nugent, P. Melchior, F. Menanteau, D. Nagasawa, B. Nord, R. Ogando, L. Old, A. Palmese, D. Petravick, A. Plazas, A. Pujol, A. Queiroz, K. Reil, A. Romer, R. Rosenfeld, A. Roodman, P. Rooney, M. Sako, A. Salvador, C. Sánchez, E. Sánchez Álvaro, B. Santiago, A. Schooneveld, M. Schubnell, E. Sheldon, A. Smith, R. Smith, M. Soares-Santos, F. Sobreira, M. Soumagnac, H. Spinka, S. Tie, D. Tucker, V. Vikram, K. Vivas, A. Walker, W. Wester, M. Wiesner, H. Wilcox, P. Williams, A. Zenteno, Y. Zhang, Z. Zhang

Proceedings Volume 9910, 99101D (2016) https://doi.org/10.1117/12.2233157

KEYWORDS: Cameras, Telescopes, Physics, Astronomy, Charge-coupled devices, Point spread functions, Mirrors, Stars, Image quality, Optical filters

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Proceedings Article | 28 July 2014 Paper

Paper

Testing fully depleted CCD

Ricard Casas, Laia Cardiel-Sas, Francisco Castander, Jorge Jiménez, Juan de Vicente

Proceedings Volume 9147, 91472R (2014) https://doi.org/10.1117/12.2054717

KEYWORDS: Charge-coupled devices, Quantum efficiency, X-rays, Cameras, Electronics, Calibration, Sensors, Coating, CCD cameras, X-ray imaging

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Proceedings Article | 25 July 2014 Paper

Paper

The DECam DAQ System: lessons learned after one year of operations

K. Honscheid, A. Elliott, M. Bonati, E. Buckley-Geer, F. Castander, L. da Costa, H. Diehl, J. Eiting, O. Estay, A. Fausti , B. Flaugher, I. Karliner, S. Kuhlmann, I. Mandrichenko, E. Neilsen, K. Patton, K. Reil, A. Roodman, J. Thaler, G. Schumacher, S. Serrano, E. Suchyta, M. Vittone, A. Walker

Proceedings Volume 9152, 91520G (2014) https://doi.org/10.1117/12.2057073

KEYWORDS: Telescopes, Cameras, Databases, Control systems, Data acquisition, Computing systems, Neodymium, Human-machine interfaces, Imaging systems, Observatories

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Proceedings Article | 24 September 2012 Paper

Paper

The PAU camera and the PAU survey at the William Herschel Telescope

Francisco Castander, Otger Ballester, Anne Bauer, Laia Cardiel-Sas, Jorge Carretero, Ricard Casas, Javier Castilla, Martin Crocce, Manuel Delfino, Martin Eriksen, Enrique Fernández, Pablo Fosalba, Juan García-Bellido, Enrique Gaztañaga, Ferran Grañena, Carles Hernández, Jorge Jiménez, Luis López, Pol Martí, Ramon Miquel, Christian Neissner, Cristobal Padilla, Cristobal Pío, Rafael Ponce, Eusebio Sanchez, Santiago Serrano, Ignacio Sevilla, Nadia Tonello, Juan de Vicente

Proceedings Volume 8446, 84466D (2012) https://doi.org/10.1117/12.926234

KEYWORDS: Cameras, Optical filters, Galactic astronomy, Telescopes, Sensors, Charge-coupled devices, Imaging systems, Image filtering, Space telescopes, Spectroscopy

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Proceedings Article | 24 September 2012 Paper

Paper

The Readout and Control System of the Dark Energy Camera

Klaus Honscheid, Ann Elliott, James Annis, Marco Bonati, Elizabeth Buckley-Geer, Francisco Castander, Luiz daCosta, Angelo Fausti, Inga Karliner, Steve Kuhlmann, Eric Neilsen, Kenneth Patton, Kevin Reil, Aaron Roodman, Jon Thaler, Santiago Serrano, Marcelle Soares Santos, Eric Suchyta

Proceedings Volume 8451, 845112 (2012) https://doi.org/10.1117/12.925717

KEYWORDS: Control systems, Image processing, Telescopes, Cameras, Databases, Charge-coupled devices, Image quality, Human-machine interfaces, Data acquisition, Computing systems

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Proceedings Article | 20 July 2010 Paper

Paper

PAUCam filter interchange system

F. Madrid, O. Ballester, L. Cardiel-Sas, R. Casas, F. Castander, J. Castilla, J. de Vicente, E. Fernández, E. Gaztañaga, F. Grañena, J. Jiménez, M. Maiorino, P. Martí, R. Miquel, E. Sánchez, S. Serrano, I. Sevilla, N. Tonello

Proceedings Volume 7735, 77353R (2010) https://doi.org/10.1117/12.857135

KEYWORDS: Charge-coupled devices, Optical filters, Galactic astronomy, Surface conduction electron emitter displays, Cameras, Physics, Sensors, Spectrographs, Manufacturing, Distance measurement

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Proceedings Article | 20 July 2010 Paper

Paper

The PAU camera

R. Casas, O. Ballester, L. Cardiel-Sas, J. Carretero, F. Castander, J. Castilla, M. Crocce, J. de Vicente, M. Delfino, E. Fernández, P. Fosalba, J. Garcia-Bellido, E. Gaztañaga, F. Grañena, J. Jiménez, F. Madrid, M. Maiorino, P. Martí, R. Miquel, Ch. Neisser, E. Sánchez, S. Serrano, I. Sevilla, N. Tonello

Proceedings Volume 7735, 773536 (2010) https://doi.org/10.1117/12.856928

KEYWORDS: Cameras, Charge-coupled devices, Optical filters, Sensors, Telescopes, Imaging systems, Control systems, Clocks, Nitrogen, CCD image sensors

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Proceedings Article | 19 July 2010 Paper

Paper

The DECam data acquisition and control system

K. Honscheid, J. Eiting, A. Elliott, J. Annis, M. Bonati, E. Buckley-Geer, F. Castander, L. da Costa, M. Haney, W. Hanlon, I. Karliner, K. Kuehn, S. Kuhlmann, S. Marshall, M. Meyer, E. Neilsen, R. Ogando, A. Roodman, T. Schalk, G. Schumacher, M. Selen, S. Serrano, J. Thaler, W. Wester

Proceedings Volume 7740, 77401K (2010) https://doi.org/10.1117/12.856734

KEYWORDS: Image processing, Control systems, Image quality, Telescopes, Data acquisition, Cameras, Charge-coupled devices, Databases, Computing systems, Distributed computing

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Proceedings Article | 14 July 2008 Paper

Paper

The read-out and control system of the DES camera (SISPI)

K. Honscheid, T. Abbott, J. Annis, E. Buckley-Geer, F. Castander, J. Eiting, M. Gladders, M. Haney, I. Karliner, D. Kau, K. Kuehn, S. Kuhlmann, T. Qian, M. Selen, J. Thaler, D. Tucker, A. Zhao

Proceedings Volume 7019, 701911 (2008) https://doi.org/10.1117/12.787926

KEYWORDS: Control systems, Cameras, Telescopes, Databases, Image quality, Data acquisition, Charge-coupled devices, Camera shutters, Image processing, Computing systems

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Proceedings Article | 11 July 2008 Paper

Paper

The PAU camera

Francisco Castander

Proceedings Volume 7014, 70145C (2008) https://doi.org/10.1117/12.789497

KEYWORDS: Cameras, Optical filters, Telescopes, Baryon acoustic oscillations, Galactic astronomy, Charge-coupled devices, Sensors, CCD cameras, Control systems, Physics

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Showing 5 of 16 publications

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