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Araújo MTF, Poledna R, Delgado JU, et al. Absolute standardization of the impurity (121)Te associated to the production of the radiopharmaceutical (123)I. Appl Radiat Isot. 2015;109:389-392doi: 10.1016/j.apradiso.2015.12.056.
Araújo, M. T. F., Poledna, R., Delgado, J. U., Silva, R. L., Iwahara, A., da Silva, C. J., Tauhata, L., Oliveira, A. E., de Almeida, M. C. M., & Lopes, R. T. (2016). Absolute standardization of the impurity (121)Te associated to the production of the radiopharmaceutical (123)I. Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 109389-392. https://doi.org/10.1016/j.apradiso.2015.12.056
Araújo, M T F, et al. "Absolute standardization of the impurity (121)Te associated to the production of the radiopharmaceutical (123)I." Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine vol. 109 (2016): 389-392. doi: https://doi.org/10.1016/j.apradiso.2015.12.056
Araújo MTF, Poledna R, Delgado JU, Silva RL, Iwahara A, da Silva CJ, Tauhata L, Oliveira AE, de Almeida MCM, Lopes RT. Absolute standardization of the impurity (121)Te associated to the production of the radiopharmaceutical (123)I. Appl Radiat Isot. 2016 Mar;109:389-392. doi: 10.1016/j.apradiso.2015.12.056. Epub 2015 Dec 29. PMID: 26805708.
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Appl Radiat Isot. 2016 Mar;109:389-392. doi: 10.1016/j.apradiso.2015.12.056. Epub 2015 Dec 29.

Absolute standardization of the impurity (121)Te associated to the production of the radiopharmaceutical (123)I.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine

M T F Araújo, R Poledna, J U Delgado, R L Silva, A Iwahara, C J da Silva, L Tauhata, A E Oliveira, M C M de Almeida, R T Lopes

Affiliations

  1. Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22780-160 RJ, Brazil; Laboratório de Instrumentação Nuclear (LIN/PEN/COPPE/UFRJ), Caixa Postal 68509, CEP 21945-970 RJ, Brazil.
  2. Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22780-160 RJ, Brazil.
  3. Laboratório Nacional de Metrologia das Radiações Ionizantes (LNMRI/IRD/CNEN), Av. Salvador Allende, s/n, Recreio, CEP 22780-160 RJ, Brazil. Electronic address: [email protected].
  4. Laboratório de Instrumentação Nuclear (LIN/PEN/COPPE/UFRJ), Caixa Postal 68509, CEP 21945-970 RJ, Brazil.

PMID: 26805708 DOI: 10.1016/j.apradiso.2015.12.056

Abstract

(123)I is widely used for radiodiagnostic procedures. It is produced by reaction of (124)Xe (p,2n) (123)Cs →(123)Xe →(123)I in cyclotrons. (121)Te and (125)I appear in a photon energy spectrum as impurities. An activity of (121)Te was calibrated absolutely by sum-peak method and its photon emitting probability was estimated, whose results were consistent with published results.

Copyright © 2015 Elsevier Ltd. All rights reserved.

Keywords: (121)Te; Absolute standardization; Radiopharmaceutical; Sum-peak method

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