Soviet Atomic Energy

, Volume 60, Issue 5, pp 395–400 | Cite as

Production of123I by irradiating124Xe with 20–30-MeV protons

  • B. V. Zhuravlev
  • S. P. Ivanova
  • N. N. Krasnov
  • Yu. N. Shubin


The method of obtaining123I by irradiating highly enriched124Xe with protons in the energy range from 28 to 30 MeV ensures a, high efficiency in producing the radioisotope, which is twice as high as that achieved in the reaction127I(p, 5n)\({}^{123}Xe\xrightarrow[{\beta ^ + ,\varepsilon }]{{2.08h}}^{123}\) with a proton energy of 65 MeV [1]. In this, there is hardly any124I impurity, while the amount of the125I impurity is much smaller. An efficiency of123I production that is entirely acceptable for practical purposes is also achieved with a proton energy of 22 MeV: 11.7 Ci (1 Ci=3.7·1010 Bq) after 26-h irradiation with a 50-μA beam.

Calculations of the excitation functions performed in [12] according to the ALICE program yielded results somewhat different from ours, but the integral123I yield for a proton energy of 28 MeV was practically the same.

Thus, the above method of123I production makes it possible to use 22-30-MeV cyclotrons, i. e., the great majority of cyclotrons presently utilized for the production of medical radioisotopes [11]. This could probably solve the problem of adequate supply of the medically important123I radioisotope that would be free from the124I impurity.


Energy Range Great Majority Practical Purpose Excitation Function Proton Energy 
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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • B. V. Zhuravlev
  • S. P. Ivanova
  • N. N. Krasnov
  • Yu. N. Shubin

There are no affiliations available

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