J. Gehlot

Fabrication and characterization of carbon-backed 203,205Tl targets

Thallium (Tl) targets having ~200xa0μg/cm2 thickness were prepared using vacuum vapour deposition method. Enriched 203Tl and 205Tl (96.54 and 99.9xa0% enrichment, respectively) were deposited on carbon backing of thickness ~35xa0μg/cm2. Thickness and purity of targets were measured by X-ray fluorescence and Rutherford back-scattering techniques.

Fusion and transfer reactions around the Coulomb barrier for 28Si+90,94Zr systems

Fusion excitation functions and transfer probabilities were measured for 28Si+90,94Zr systems around the Coulomb barrier, using the recoil mass separator, Heavy Ion Reaction Analyzer (HIRA) at Inter University Accelerator Centre (IUAC), New Delhi. The aim of these experiments was the study of coupling effects of inelastic and transfer channels on the sub-barrier fusion cross section enhancement. The experimental fusion cross sections were found to be strongly enhanced as compared to one dimensional barrier penetration model (1-d BPM) predictions in both the cases. The trend of data could be easily reproduced theoretically using coupled channels code CCFULL in the case of 28Si+90Zr but the observed enhancement could not be explained in the case of 28Si+94Zr, which may be attributed to the coupling of multinucleon transfer channels as both isotopes have similar collective strengths. The transfer probabilities in the case of 94Zr were found to be substantially higher than for 90Zr in the sub-barrier region.

Probing Quasifission In Reactions Forming Rn Nucleus

We studied the competition between fusion and nquasifission by populating the compound nucleus (CN)

Evaporation residue excitation function for 30 Si + 180 Hf

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Investigation of dynamics of fusion reactions through cross-section and spin distribution measurements

Rn through different entrance channels -

ER excitation function measurement for the 35;37 Cl+ 181 Ta reactions

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reaction and search for neutron shell closure effects

O+

Probing fusion-fission dynamics in 203 Bi using evaporated neutrons

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ONSET OF QUASIFISSION PROCESS IN ASYMMETRIC REACTIONS FORMING THE COMPOUND SYSTEM 210Rn

Pt and

Evaporation Residue excitation function for

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