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Variable Energy Cyclotron Centre, Kolkata

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Congratulations to Vishal Srivastava who recently defended his PhD thesis.

Vishal performed his thesis experiment  using deuteron beam of energy 25 MeV from VECC K130 cyclotron on ²⁷Al target to extract spectroscopic information about different excited states of ²⁶Al and ²⁶Mg populated through the ²⁷Al(d , t) and ²⁷Al(d , ³He) reactions, respectively. The nucleus ²⁶Al is very important in recent astrophysics research, as it is the first cosmic radioactivity detected through its characteristic gamma rays in the interstellar medium and its lifetime (10⁶ year) is much shorter as compared to the time for galactic evolution (10¹⁰ year). The detection of ²⁶Al at the present time indicates that nucleosynthesis is currently active in the massive stars within our galaxy and it is known that massive stars are the main sources for the origin of ²⁶Al . Also the decay of ²⁶Al may be used as an isotopic chronometer for galaxies  and it is also used to probe the Standard Model. So, detailed knowledge of the structures of ²⁶Al and ²⁶Mg is necessary to understand the formation of ²⁶Al as well as its destruction  in our galaxy in order to understand its evolution.

Well done Dr. Srivastava, we wish you all the best.