Paper 13100-184
Paper 13100-184
Design and testing of an occulter for a terrestrial solar coronagraph
18 June 2024 • 11:15 - 11:30 Japan Standard Time | Room G214, North - 2F
Abstract
COSMO Large Coronagraph is a 1.4m diameter lens refractive coronagraph dedicated to the measurement of the magnetic field of the Sun corona. The internal occulter can adjust its size as the Sun apparent dimension changes through the year. In addition, this object prevents the formation of internal seeing: the intense heat coming from the Sun activates significant hot air motion (natural convection) which is detrimental to the quality of the image. Seeing prevention is accomplished by a cooling subsystem which employs a liquid cooling circuit and an air system management.
Presenter
EIE Group S.r.l. (Italy)
Mr. Gianpietro Marchiori is the President and CEO of EIE GROUP Srl, an International EPCC - Engineering, Procurement, Construction and Commissioning - Company, specialized in Management & Contracting, Engineering & Design and Production & Services. EIE is an internationally recognized player in areas such as Astronomy, Astrophysics, Big science, Civil Infrastructures and large scientific technological facilities.
Mr. Marchiori has been awarded important contracts on international astronomical projects from the NTT (Rotating and Auxiliary Building), to the 4 VLTs (Enclosures and Telescope Main Structures), the LBT, TNG, THEMIS, as well as the ALMA Prototype and the ALMA 25 European Antennas. EIE is working on the construction of the Turkish DAG project, the design and fabrication of the American LSST Dome, as well as the MROI project. EIE worked on the design of the ELT project since 2008 and participated to the final tender for the both Telescope and Dome contracts assignments.