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Chemical Aspects of Nuclear Processes
Published in Ivan G. Draganić, Zorica D. Draganić, Jean-Pierre Adloff, Radiation and Radioactivity on Earth and Beyond, 2020
Ivan G. Draganić, Zorica D. Draganić, Jean-Pierre Adloff
The most important present application of hot atom reactions is the production of radiopharmaceuticals, which are compounds containing short-lived radionuclides used in medical research and clinical applications (Chapter 8). For in vivo studies, these materials have many advantages: a low dose is delivered to the patient, the amount of carrier is in the nanogram range, the biological equilibrium remains undisturbed, and even toxic compounds can be injected. Moreover, the use of short-lived isotopes avoids the waste problem.
My life
Published in Molecular Physics, 2018
My thesis was made up of two parts: The Kinetic Theory of Hot Atom Reactions. This part ended up as following the derivation of an equation for the yield, P(E), of a certain kind of chemical reactions that take place between radioactive products (namely a certain kind of hot atoms) and the molecules of the gaseous medium in which they are moving. Similar equations were derived before but the equation derived in the next two publications {Baer, J. Chem. Phys. 50, 3116 (1969); Baer, Amiel, J. Chem. Phys. 53, 407 (1970)} applies for the more general case. Discussion of its relevance is presented as well. This equation was derived under the supervision of Professor Jens Lindhard (who succeeded his mentor, Niels Bohr, as a leading figure in Particle–Solid interactions) of the Department of Physics at the University of Aarhus in Denmark. The equation was applied in various Hot-Atom studies – among them experiments conducted by Amiel and his Ph.D. student, Ze’ev Alfasi.A Model for Calculating High-Energy Reaction Cross Sections. The model was based on Billiard-Ball type collisions where various parameters (i.e. the Radii of the balls as well as the radii of the potential wells) were made energy dependent on the fly, see Baer, Amiel; J. Am. Chem. Soc. 91, 6547 (1969); Ibid. Israel J. Chem. 7, 341 (1969); Baer, Amiel; J. Am. Chem. Soc. 93, 5343 (1971). The results due to this model were compared with the exact trajectory calculations as carried out by Karplus, Porter and Sharma for the reactions: H2(D2) + T → H(D)T + (D)H. Excellent agreement was obtained in both cases.