FIGURE 2.2. Methods for producing Mo-99 and Tc-99m using reactors and accelerators.

FIGURE 2.2Methods for producing Mo-99 and Tc-99m using reactors and accelerators

The production methods are described in the text. Accelerators can be used to produce photons (γ) and neutrons (n) by accelerating electrons (e), deuterons (D), and protons (p) into solid targets. Irradiation of U-235, U-238, Mo-98, and Mo-100 target materials with these radiations produces Mo-99. Additionally, proton irradiation of Mo-100 produces Tc-99m directly.

From: 2, Medical Isotope Production and Utilization

Cover of Molybdenum-99 for Medical Imaging
Molybdenum-99 for Medical Imaging.
Committee on State of Molybdenum-99 Production and Utilization and Progress Toward Eliminating Use of Highly Enriched Uranium; Nuclear and Radiation Studies Board; Division on Earth and Life Studies; National Academies of Sciences, Engineering, and Medicine.
Washington (DC): National Academies Press (US); 2016 Oct 28.
Copyright 2016 by the National Academy of Sciences. All rights reserved.

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