%0 Conference Proceedings
%4 dpi.inpe.br/plutao/2012/11.28.14.20.50
%2 dpi.inpe.br/plutao/2012/11.28.14.20.51
%F lattes: 1272123236892781 4 KaufmannABCDFF:2012:TePhOb
%T SOLAR-T: terahertz photometers to observe solar flare emission on stratospheric balloon flights
%D 2012
%A Kaufmann, P.,
%A Abrantes, A,
%A Bortolucci, E. C.,
%A Correia, Emilia,
%A Diniz, J. A.,
%A Fernandez, G.,
%A Fernandes, Luiz Olavo T.,
%A Castro, C. G. Giménez,
%A Godoy, R.,
%A Hurford, G.,
%A Kudaka, A. S.,
%A Lebedev, M.,
%A Lin, R. P.,
%A Machado, N.,
%A Makhmutov., V. S.,
%A Marcon, R.,
%A Marun, A.,
%A Nicolaev, V. A.,
%A Pereyra, P.,
%A Raulin, J. P.,
%A Silva, C. M.,
%A Shih, A.,
%A Stozkhov, Y. I.,
%A Swart, J. W.,
%A Timofeevsky, A. V.,
%A Valio, A.,
%A Villela Neto, Thyrso,
%A Zakia, M. B.,
%@affiliation Universidade Presbiteriana Mackenzie
%@affiliation Propertech Tecnologia Ltda
%@affiliation Universidade Estadual de Campinas (UNICAMP)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade Estadual de Campinas (UNICAMP)
%@affiliation Complejo Astronomico El Leoncito (CONICET)
%@affiliation Universidade Presbiteriana Mackenzie
%@affiliation Universidade Presbiteriana Mackenzie
%@affiliation Complejo Astronomico El Leoncito (CONICET)
%@affiliation University of California
%@affiliation Universidade Presbiteriana Mackenzie
%@affiliation Special Astrophysical Observatory of Russian Academy of Sciences
%@affiliation University of California
%@affiliation Propertech Tecnologia Ltda
%@affiliation Lebedev Physics Institute
%@affiliation Universidade Estadual de Campinas (UNICAMP)
%@affiliation Complejo Astronomico El Leoncito (CONICET)
%@affiliation Tydex Co
%@affiliation Complejo Astronomico El Leoncito (CONICET)
%@affiliation Universidade Presbiteriana Mackenzie
%@affiliation Neuron Eletronica Ltda
%@affiliation National Aeronautical and Space Administration
%@affiliation Lebedev Physics Institut
%@affiliation Universidade Estadual de Campinas (UNICAMP)
%@affiliation Tydex Co
%@affiliation Universidade Presbiteriana Mackenzie
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Universidade Estadual de Campinas (UNICAMP)
%@electronicmailaddress pierrekau@gmail.com
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%@electronicmailaddress ecorreia@craam.mackenzie.br
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%@electronicmailaddress villela@das.inpe.br
%B Space Telescopes and Instrumentation: Optical, Infrared, and Millimeter Wave.
%C Amsterdam
%8 2012
%I International Society for Optics and Photonics
%V 84424L
%P 84424L-1-84424L-9
%S Proceedings
%K solar flare, THz photometers, ballon flights.
%X 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.
%@language en
%3 Kaufmann-solar.pdf
%U http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1362329