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Know-how developed in Brazil will likely be a part of the Worldwide House Station

Publicado em 20 fevereiro 2019

A brand new model of kit developed in Brazil—the Photo voltaic-T—will likely be despatched to the Worldwide House Station (ISS) to measure photo voltaic flares. It’s estimated that the sun-THz, the brand new photometric telescope, will likely be launched in 2022 on one of many missions to the ISS and can stay there to take constant measurements.

The photometric telescope works at a frequency of 0.2 to 15 THz, which may solely be measured from area. In parallel, one other telescope, the HATS, will likely be put in in Argentina. That instrument, which will likely be prepared in 2020, will work at a frequency of 15 THz on the bottom. The HATS is being constructed as a part of a Thematic Venture led by Guillermo Giménez de Castro, a professor on the Mackenzie Radio Astronomy and Astrophysics Middle (CRAAM) at Mackenzie Presbyterian College (UPM).

The gear was a part of the subject material introduced in the course of the session given by Giménez de Castro at FAPESP Week London, February 11-12, 2019. The researcher defined that photo voltaic explosions, or flares, are phenomena that happen on the solar’s floor, inflicting excessive ranges of radiation in outer area.

The Solar THz is an enhanced model of the Photo voltaic-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 Photo voltaic-T captured the power emitted by photo voltaic flares at two unprecedented frequencies: from three to seven terahertz (THz), which corresponds to a section of far infrared radiation. The Photo voltaic-T was designed and in-built Brazil by researchers at CRAAM along with colleagues on the Middle for Semiconductor Elements on the College of Campinas (UNICAMP).

Pierre Kaufmann, a researcher at CRAAM and one of many pioneers of radioastronomy in Brazil, died in 2017. The brand new gear, with Kaufmann as one in all its creators, would be the product of a partnership with the Lebedev Physics Institute in Russia. “The thought now could be to make use of a set of detectors to measure a full spectrum, from 0.2 THz to 15 THz,” Giménez de Castro stated.

A lot of the new photometric telescope will likely be in-built Russia, however it is going to have components made in Brazil, such because the gear that will likely be used to calibrate all the instrument. “The know-how and idea behind the telescope had been developed right here [in Brazil]. The Russians preferred the thought and are reproducing it and including extra components. We’re engaged on the chopping fringe of know-how. Forty years in the past, the leading edge for what could possibly be accomplished was 100 gigahertz. With the outcomes obtained over time, we’re searching for increased frequencies, and prospects for the longer term are good,” stated the researcher.

The performance of the gear lies in its graphene sensors. Extremely delicate to terahertz frequencies, graphene sensors are in a position to detect polarization and might be adjusted electronically. Experiments in creating these detectors are presently underway on the Middle for Superior Graphene, Nanomaterials and Nanotechnology Analysis (MackGraphe) at Mackenzie Presbyterian College, a FAPESP-funded middle.