Re-utilization of long lived 99 Tc radio isotope via Photon induced nuclear reactions.

Autor: Akbar S; Department of Physics, University of Calicut, Calicut University P.O, Malappuram 673635, Kerala, India. Electronic address: shaimaakbar333@gmail.com., Musthafa MM; Department of Physics, University of Calicut, Calicut University P.O, Malappuram 673635, Kerala, India. Electronic address: mmm@uoc.ac.in., Midhun CV; Department of Physics, University of Calicut, Calicut University P.O, Malappuram 673635, Kerala, India., Joseph A; Department of Physics, University of Calicut, Calicut University P.O, Malappuram 673635, Kerala, India., Cyriac SL; Department of Radiation Oncology, KIMS Cancer Care and Research Center, Trivandrum, 695029, India., Jagadeesan KC; Radiopharmaceuticals Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
Jazyk: angličtina
Zdroj: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine [Appl Radiat Isot] 2024 Feb; Vol. 204, pp. 111138. Date of Electronic Publication: 2023 Dec 01.
DOI: 10.1016/j.apradiso.2023.111138
Abstrakt: Technetium-99 is a radioactive waste produced primarily in nuclear reactors. It is also left as radioactive waste in hospitals, directly from 99m Tc isomeric state. To bring down the quantity of technetium-99 radioactive waste, the nuclear reactions using photon beam is explored. The integral cross section of the reaction 99 Tc(γ,γ') 99m Tc has been determined using the photo-nuclear activation method. The experiment was done using bremsstrahlung photons having endpoint energies viz. 6, 9, 12, 16, and 20 MeV. 115 In(γ,γ') 115m In reaction has been used as a monitor reaction, for the flux normalization of the bremsstrahlung spectrum. Theoretical model calculations have been done using the nuclear reaction code Talys 1.9. Theoretical parameter values are optimized with the presently obtained data. Total cross sections are estimated and investigated the feasibility of re-utilization of the technetium-99 radioactive isotope.
Competing Interests: Declaration of competing interest I hereby declare that this article does not contain any conflict of interests by any other authors.
(Copyright © 2023 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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