Analysis of the intermediate stage in the heavy ion interactions of 208Pb+ 197Au and 197Au+ 197Au

• Published in: Radiation measurements Vol. 43; pp. S274 - S278
• Main Authors: Nasir, Tabassum, Khan, E.U., Baluch, J.J., Qureshi, I.E., Sajid, M., Shahzad, M.I.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01.08.2008; Elsevier
• Subjects: Damping of energy; Earth sciences; Earth, ocean, space; Equilibrated pre-fission fragments; Exact sciences and technology; Geochronology; Heavy ion interactions; Intermediate stage; Isotope geochemistry. Geochronology; Mica track detector; Heavy ion interactions; Equilibrated pre-fission fragments; Damping of energy; Mica track detector; Intermediate stage; cross sections; detection; mica; damping; duration; Q; fission; sheet silicates; silicates; fragments; ions; equilibrium; energy
• ISSN: 1350-4487; 1879-0925
• DOI: 10.1016/j.radmeas.2008.03.072

Two different projectiles 208Pb and 197Au at the same energy ( 11.67 MeV / u ) have been bombarded on 197Au target to study heavy ion interactions using mica as a passive detector. In this paper we present results on the study of energy damping and time scale of the existence of di-nuclear composite system in the intermediate reaction step. The plots of Q -values as well as reaction cross sections in various angular bins of scattering angles suggest that K.E. damping was complete and dynamic equilibrium was established between the first and second reaction steps. The time scale of this duration was also determined.