Abstract Details
| Name: Avyarthana Ghosh Affiliation: IISER Kolkata Conference ID: ASI2015_666 Title : Performance Modelling of the Solar Ultraviolet Imaging Telescope on-board Aditya-L1 Authors and Co-Authors : A.N. Ramaprakash, Durgesh Tripathi Abstract Type : Poster Abstract Category : Instrumentation and Techniques Abstract : The Solar Ultraviolet Imaging Telsecope (SUIT) is one of the payloads on-board the Aditya (a satellite placed in the halo-orbit around the first Lagrangian point (L1) of the Sun-Earth system). It is an imaging telescope making full-disk observations of the Sun within the wavelength band 200 nm to 400 nm. The telescope has a set of 8 filters out of which 5 are narrowband and 3 are wideband. The narrowband filters are at 214 nm, 388 nm, 300 nm, 279/280 nm (Mg II h and k lines) and 397.8 nm (Ca II line) whereas the wideband filters are at 200-240 nm, 240-300 nm and 320-360 nm. The incoming photon counts, the filter responses, the quantum efficiency of the CCDs used as well as the reflectivity of the aluminium mirrors used are different at these wavelength bands. Hence the throughput calculation for each of these filters have been done. The imaging performance of the telescope has also been carried out to have a prototype image of the Sun as will be seen by SUIT. |