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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

THz photometers for solar flare observations from space

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Kaufmann, Pierre [1, 2] ; Marcon, Rogerio [3, 4] ; Abrantes, Andre [5] ; Bortolucci, Emilio C. [2] ; Fernandes, Luis Olavo T. [1] ; Kropotov, Grigory I. [6] ; Kudaka, Amauri S. [1] ; Machado, Nelson [5] ; Marun, Adolfo [7] ; Nikolaev, Valery [6] ; Silva, Alexandre [8] ; da Silva, Claudemir S. [9] ; Timofeevsky, Alexander [6]
Total Authors: 13
[1] Univ Presbiteriana Mackenzie, CRAAM, Escola Engn, Sao Paulo - Brazil
[2] Univ Estadual Campinas, Ctr Componentes Semicond, Campinas, SP - Brazil
[3] Univ Estadual Campinas, Inst Fis Gleb Wataghin, Campinas, SP - Brazil
[4] Observ Solar Bernard Lyot, Campinas, SP - Brazil
[5] Propertech Ltda, Jacarei, SP - Brazil
[6] Tydex LLC, St Petersburg - Russia
[7] Consejo Nacl Invest Cient & Tecn, San Juan - Argentina
[8] Samsung Res Inst, Campinas, SP - Brazil
[9] Neuron Ltda, Sao Jose Dos Campos, SP - Brazil
Total Affiliations: 9
Document type: Journal article
Source: EXPERIMENTAL ASTRONOMY; v. 37, n. 3, p. 579-598, NOV 2014.
Web of Science Citations: 3

The search for the still unrevealed spectral shape of the mysterious THz solar flare emissions is one of the current most challenging research issues. The concept, fabrication and performance of a double THz photometer system, named SOLAR-T, is presented. Its innovative optical setup allows observations of the full solar disk and the detection of small burst transients at the same time. The detecting system was constructed to observe solar flare THz emissions on board of stratospheric balloons. The system has been integrated to data acquisition and telemetry modules for this application. SOLAR-T uses two Golay cell detectors preceded by low-pass filters made of rough surface primary mirrors and membranes, 3 and 7 THz band-pass filters, and choppers. Its photometers can detect small solar bursts ( tens of solar flux units) with sub second time resolution. Tests have been conducted to confirm the entire system performance, on ambient and low pressure and temperature conditions. An artificial Sun setup was developed to simulate performance on actual observations. The experiment is planned to be on board of two long-duration stratospheric balloon flights over Antarctica and Russia in 2014-2016. (AU)

FAPESP's process: 10/51861-8 - Solar flare THz measurements from space: phase I (2012-2013)
Grantee:Pierre Kaufmann
Support type: Regular Research Grants