35th Annual Report (2022-2023) - ENGLISH

73 SCIENTIFIC MEETINGS AND OTHER EVENTS Indo-French School (IFAS7) on Spectroscopy and Spectrographs The IFAS7 school gathered 20 student participants from different horizons to expose them to high-level specialized lectures and propose them to carry out an eight days long research project. The subject was "Spectroscopy and Spectrographs." It covered observational and data-reduction techniques through the source detection and extraction in integral-field spectroscopy, multi- wavelength photometry, and spectral energy distribution modelling. One of the major highlights of the IFAS school is its Constancy of the fundamental "constants?" This meeting is the first one of its own kind has brought several Indian scientists working in different Physics fields to brainstorm on their common science goals. New ideas have nucleated from this meeting particularly the exchange of knowledge between the theorists and experimentalist/ observational groups, and inter-field collaboration shall open-up new possibilities to start complex experiments, writing joint proposals etc. Themeeting was GEANT4 Physics Applications Workshop A national workshop on GEANT4 and its Application to High-Energy Physics and Astrophysics, jointly organised by TIFR and IUCAA, was held at IUCAA from 5th to 9th . GEANT4 is a toolkit to simulate particle (or radiation) interactions with matter as they pass through it. It is primarily used to simulate detector physics and response in high-energy physics as well as high-energy astrophysics. The aim of the workshop was to bring together the GEANT4 user community in India and introduce intermediate to advanced concepts of GEANT4 to graduate students, postdocs and scientific staff who use GEANT4 in their December 2022 intense project-based research. The school was held during 21-27 November 2022. It was coordinated by Kanak Saha. [For details, see Khagol, No. 130] held onDecember 01-02, 2022, and coordinated by SubhadeepDe andSowgat Muzahid. [For details, see Khagol, No. 130] research work. The workshop was coordinated jointly by Gulab Dewangan and Shriharsh Tendulkar (DAA, TIFR). [For details, see Khagol, No. 130]