@InProceedings{KaufmannABCDFFCGHKLLMMMMNPRSSSSTVVZ:2012:TePhOb,
               author = "Kaufmann, P. and Abrantes, A and Bortolucci, E. C. and Correia, 
                         Emilia and Diniz, J. A. and Fernandez, G. and Fernandes, Luiz 
                         Olavo T. and Castro, C. G. Gim{\'e}nez and Godoy, R. and Hurford, 
                         G. and Kudaka, A. S. and Lebedev, M. and Lin, R. P. and Machado, 
                         N. and Makhmutov., V. S. and Marcon, R. and Marun, A. and 
                         Nicolaev, V. A. and Pereyra, P. and Raulin, J. P. and Silva, C. M. 
                         and Shih, A. and Stozkhov, Y. I. and Swart, J. W. and Timofeevsky, 
                         A. V. and Valio, A. and Villela Neto, Thyrso and Zakia, M. B.",
          affiliation = "{Universidade Presbiteriana Mackenzie} and {Propertech Tecnologia 
                         Ltda} and {Universidade Estadual de Campinas (UNICAMP)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Universidade Estadual de Campinas (UNICAMP)} and {Complejo 
                         Astronomico El Leoncito (CONICET)} and {Universidade Presbiteriana 
                         Mackenzie} and {Universidade Presbiteriana Mackenzie} and 
                         {Complejo Astronomico El Leoncito (CONICET)} and {University of 
                         California} and {Universidade Presbiteriana Mackenzie} and 
                         {Special Astrophysical Observatory of Russian Academy of Sciences} 
                         and {University of California} and {Propertech Tecnologia Ltda} 
                         and {Lebedev Physics Institute} and {Universidade Estadual de 
                         Campinas (UNICAMP)} and {Complejo Astronomico El Leoncito 
                         (CONICET)} and {Tydex Co} and {Complejo Astronomico El Leoncito 
                         (CONICET)} and {Universidade Presbiteriana Mackenzie} and {Neuron 
                         Eletronica Ltda} and {National Aeronautical and Space 
                         Administration} and {Lebedev Physics Institut} and {Universidade 
                         Estadual de Campinas (UNICAMP)} and {Tydex Co} and {Universidade 
                         Presbiteriana Mackenzie} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Universidade Estadual de Campinas 
                         (UNICAMP)}",
                title = "SOLAR-T: terahertz photometers to observe solar flare emission on 
                         stratospheric balloon flights",
            booktitle = "Proceedings...",
                 year = "2012",
                pages = "84424L-1--84424L-9",
         organization = "Space Telescopes and Instrumentation: Optical, Infrared, and 
                         Millimeter Wave.",
            publisher = "International Society for Optics and Photonics",
             keywords = "solar flare, THz photometers, ballon flights.",
             abstract = "A new solar flare spectral component has been found with 
                         intensities increasing for larger sub-THz frequencies, spectrally 
                         separated from the well known microwaves component, bringing 
                         challenging constraints for interpretation. Higher THz frequencies 
                         observations are needed to understand the nature of the mechanisms 
                         occurring in flares. A twofrequency THz photometer system was 
                         developed to observe outside the terrestrial atmosphere on 
                         stratospheric balloons or satellites, or at exceptionally 
                         transparent ground stations. 76 mm diameter telescopes were 
                         designed to observe the whole solar disk detecting small relative 
                         changes in input temperature caused by flares at localized 
                         positions at 3 and 7 THz. Golay cell detectors are preceded by 
                         low-pass filters to suppress visible and near IR radiation, 
                         band-pass filters, and choppers. It can detect temperature 
                         variations smaller than 1 K with time resolution of a fraction of 
                         a second, corresponding to small burst intensities. The telescopes 
                         are being assembled in a thermal controlled box to which a data 
                         conditioning and acquisition unit is coupled. While all 
                         observations are stored on board, a telemetry system will forward 
                         solar activity compact data to the ground station. The experiment 
                         is planned to fly on board of long-duration stratospheric balloon 
                         flights some time in 2013-2015. One will be coupled to the GRIPS 
                         gamma-ray experiment in cooperation with University of California, 
                         Berkeley, USA. One engineering flight will be flown in the USA, 
                         and a 2 weeks flight is planned over Antarctica in southern 
                         hemisphere summer. Another long duration stratospheric balloon 
                         flight over Russia (one week) is planned in cooperation with the 
                         Lebedev Physics Institute, Moscow, in northern hemisphere 
                         summer.",
  conference-location = "Amsterdam",
      conference-year = "2012",
                label = "lattes: 1272123236892781 4 KaufmannABCDFF:2012:TePhOb",
             language = "en",
           targetfile = "Kaufmann-solar.pdf",
                  url = "http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1362329",
               volume = "84424L",
        urlaccessdate = "30 abr. 2024"
}