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Evaluation of proton induced reactions on100Mo: New cross sections for production of99mTc and99Mo

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Abstract

The use of the99Mo→99mTc generator in nuclear medicine is well established world wide. The production of the99Mo (T1/2 = 66 h) parent as a fission product of235U is largely based on the use of reactor technology. From the early 1990's accelerator based production methods to provide either direct produced99mTc or the parent99Mo, were studied and suggested as potential alternatives to the reactor based production of99Mo. A possible pathway for the charged particle production of99mTc and99Mo is irradiation of molybdenum metal with protons via the reaction100Mo(p,2n)99mTc and100Mo(p,pn)99Mo, respectively. The earlier published excitation functions show large differences in their maximum that result in large differences in the calculated yields. We therefore decided to study the excitation function for these proton-induced reactions. In this work the newly measured excitation functions as well as an evaluation of earlier measured data and a discussion of the observed disagreements are presented.

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Authors and Affiliations

  1. Institute of Nuclear Research, Bem tér 18/c, H-4026, Debrecen, Hungary

    S. Takács & F. Tárkányi

  2. Institute of Nuclear Research Laboratory for Environmental Studies, Bem tér 18/c, H-4026, Debrecen, Hungary

    Z. Szűcs

  3. Free University of Brussels, Laarbeeklaan 103, B-1090, Brussels, Belgium

    A. Hermanne & M. Sonck

Authors
  1. S. Takács

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  2. Z. Szűcs

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  3. F. Tárkányi

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  4. A. Hermanne

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  5. M. Sonck

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Takács, S., Szűcs, Z., Tárkányi, F.et al. Evaluation of proton induced reactions on100Mo: New cross sections for production of99mTc and99Mo.Journal of Radioanalytical and Nuclear Chemistry257, 195–201 (2003). https://doi.org/10.1023/A:1024790520036

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