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Technology developed in Brazil will be part of ISS
by Staff Writers
Sao Paulo, Brazil (SPX) Feb 20, 2019

File image of solar flares.

A new version of equipment developed in Brazil - the Solar-T - will be sent to the International Space Station (ISS) to measure solar flares. It is estimated that the Sun-THz, the name given to the new photometric telescope, will be launched in 2022 on one of the missions to the ISS and will remain there to take consistent measurements.

The photometric telescope works at a frequency of 0.2 to 15 THz, which can only be measured from space. In parallel, another telescope, the HATS, will be installed in Argentina. That instrument, which will be ready in 2020, will work at a frequency of 15 THz on the ground. The HATS is being constructed as part of a Thematic Project led by Guillermo Gimenez de Castro, a professor at the Mackenzie Radio Astronomy and Astrophysics Center (CRAAM) at Mackenzie Presbyterian University (UPM).

The equipment was part of the subject matter presented during the session given by Gimenez de Castro at FAPESP Week London, February 11-12, 2019.

The researcher explained that solar explosions, or flares, are phenomena that occur on the Sun's surface, causing high levels of radiation in outer space.

The Sun THz is an enhanced version of the Solar-T, a double photometric telescope that was launched in 2016 by NASA in Antarctica in a stratospheric balloon that flew 12 days at an altitude of 40,000 m.

The Solar-T captured the energy emitted by solar flares at two unprecedented frequencies: from 3 to 7 terahertz (THz) that correspond to a segment of far infrared radiation. The Solar-T was designed and built in Brazil by researchers at CRAAM together with colleagues at the Center for Semiconductor Components at the University of Campinas (UNICAMP).

Development was possible thanks to a Thematic Project and a Regular Research Grant from FAPESP. The principal investigator for both was Pierre Kaufmann, a researcher at CRAAM and one of the pioneers of radioastronomy in Brazil, who died in 2017.

The new equipment, with Kaufmann as one of its creators, will be the product of a partnership with the Lebedev Physics Institute in Russia.

"The idea now is to use a set of detectors to measure a full spectrum, from 0.2 THz to 15 THz," Gimenez de Castro told.

Most of the new photometric telescope will be built in Russia, but it will have parts made in Brazil, such as the equipment that will be used to calibrate the entire instrument.

"The technology and concept behind the telescope were developed here [in Brazil]. The Russians liked the idea and are reproducing it and adding more elements. We are working on the cutting edge of technology. Forty years ago, the cutting edge for what could be done was 100 gigahertz. With the results obtained over the years, we are seeking higher frequencies, and prospects for the future are good," said the researcher.

The future of the equipment lies in its graphene sensors. Highly sensitive to terahertz frequencies, graphene sensors are able to detect polarization and be adjusted electronically.

Experiments in creating these detectors are currently underway at the Center for Advanced Graphene, Nanomaterials and Nanotechnology Research (MackGraphe) at Mackenzie Presbyterian University, a FAPESP-funded center.

The project also enjoys collaboration from the University of Glasgow, as part of the PhD work of Jordi Tuneu Serra, who is currently on a FAPESP-funded doctoral research internship abroad and who also attended FAPESP Week London.


Related Links
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo
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US to extend use of Russia's Soyuz for ISS missions until April 2020
Moscow (Sputnik) Feb 12, 2019
The United States will extend the use of Russian Soyuz spacecraft to bring NASA astronauts to the International Space Station and ensure their return to Earth until April 2020, a Russian space industry source told Sputnik. "The following scheme is planned for now: two NASA astronauts will remain on the ISS for nine months instead of the usual six. So, Nick Hague starts his mission on March 14 [2019] on the Soyuz MS-12 and returns to Earth on 18 December on the Soyuz MS-13, while Andrew Morgan will ... read more

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