LNMRI / IRD / CNEN
Publications (2000 - 2004)
Recent publications (2004)
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Joyra A. dos Santos, A. Iwahara, Antônio E. de Oliveira, Mônica A. L. da Silva,
Carlos J. da Silva, Luiz Tauhata and Ricardo T. Lopes, National intercomparison
program for radiopharmaceutical activity measurements. Appl. Radiat. Isot., 60 / 2,4
(2004) 523-527.
J. Morel, S. Sepman, M. Rasko, E. Terechtchenko and José U. Delgado. Precise
determination of photon emission probabilities for the main X- and γ-rays of 226Ra
in equilibrium with daughters. Appl. Radiat. Isot., 60 / 2, 4 (2004) 341-346.
Karla C. Souza, Mônica A. L. Da Silva, José Ubiratan Delgado, Roberto Poledna,
Ricardo T. Lopes and C. J. Da Silva. Measurements of nuclear data parameters of
201
Tl by gamma-ray spectrometry. Appl. Radiat. Isot., 60 / 2,4 (2004) 307-310.
M. J.C. S. Bragança, L. Tauhata, A. F. Clain, I. Moreira, The use of instrumental
neutron activation and multivariate statistic analysis in differentiation of Brazilian
phosphate ores, Appl. Radiat. Isot . 61 (2004) 351-355
Mônica A. L. da Silva, Maria C. M. de Almeida, Carlos J. da Silva and José
Ubiratan Delgado. Use of the reference source method to determine the half-lives of
radionuclides of importance in nuclear medicine. Appl. Radiat. Isot., 60 / 2,4
(2004) 301-305
Publications in progress
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Iwahara, M. A. L. da Silva, A. E. C. Filho, E. M. De O. Bernardes, J. U. Delgado,
Determination of Disintegration Rates and γ-ray emission probabilities of 65Zn and
241
Am, Appl. Radiat. Isot., (2005) in press.
Mônica A. L. Da Silva, Maria C. M. De Almeida and José Ubiratan Delgado.
Measurements of half-lives of radionuclides by reference method. J. Radioanl. Nucl.
Chem. (2005) in press.
Earlier publications
2003
J. A. dos SANTOS, A. IWAHARA, A. E. de OLIVEIRA, M. A. L. da Silva, C.J. da Silva, L. TAUHATA
and R. T. LOPES, National Intercomparison Program for Radiopharmaceutical Activity
Measurements, 14th International Conference on Radionuclide Metrology and its
Applications,. Dublin- Ireland ( 2003 )
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K. C. de Souza, M. A. L. da Silva, José U. Delgado, R. Poledna, R. T. Lopes and C. J. da Silva,
Measurements of nuclear data parameters of 201Tl by gamma-ray spectrometry, 14th International
Conference on Radionuclide Metrology and its Applications, Dublin – Ireland. ( 2003 )
M. A. L. da Silva, M. C. M. de Almeida, Carlos J. da Silva, José U. Delgado Determination of the
half-life of the radiopharmaceuticals by reference source method, 14th International Conference
on Radionuclide Metrology and its Applications. ), Dublin – Ireland ( 2003 )
P. A. da CruzL., A Iwahara, E.M. O. Bernardes, C. J da Silva,The absolute standardization of P32 and Tl-204 at LNMRI, 14th International Conference on Radionuclide Metrology and its
Applications, Dublin - Ireland ( 2003 )
2002
Akira Iwahara, Antonio E. de Oliveira, Luiz Tauhata, Carlos J. da Silva, P. G. da Silva, A. M. S.
Braghirolli and Ricardo T. Lopes, Performance of a dose calibrators in Brazilian hospitals for
activity measurements, Appl. Radiat. Isot., 56 ( 2002 ) 361- 367
Carlos J. da Silva, José U. Delgado, Akira Iwahara, Luiz Tauhata, Roberto Poledna, and Rex N.
Alves, Absolute determination of activity per mass and half-life measurements of 152Eu, Appl.
Radiat. Isot., 56 ( 2002 ) 169-172
Estela M. O. Bernardes, José U. Delgado, Luiz Tauhata, Carlos J. da Silva, Akira Iwahara,
Roberto Poledna, Anselmo S. Paschoa, 166mHo a multi-γ standard for the calibration of Ge
spectrometers, Appl. Radiat. Isot., 56 ( 2002 ) 157-161
J. A. dos Snatos, A. Iwahara, A.E. de Oliveira, L. Tauhata, R.T. Lopes, Intercomparação das
Medições de Atividade do 67Ga em Serviços de Medicina Nuclear Brasileiros, International
Nuclear Atlantic Conference INAC Rio de Janeiro - Brazil ( 2002 )
José U. Delgado, Jean Morel, Michel Etcheverry, Measurements of photon emission probabilities
from the decay of 226Ra and daughters, Appl. Radiat. Isot., 56 ( 2002 ) 137-143.
L. Tauhata, M. E. C. Vianna, A. E. de Oliveira, A. C. M. Ferreira, C. C. S. da Conceição,
Metrological capability of the Brazilian laboratories of analyses of radionuclides in environmental
samples, Appl. Radiat. Isot. 56 ( 2002 ) 409 – 414
M. A. L. da Silva, M. C. M. de Almeida, José U. Delgado Determination of the half-life for different
nuclides by means of gamma-ray spectrometry, International Nuclear Atlantic Conference INAC
Rio de Janeiro - Brazil ( 2002 )
P. A. L. Cruz, J. S. Loureiro and E. M. O . Bernardes, Standardization of a 89Sr solution from a
BIPM intercomparison using a liquid scintillation method, Appl. Radiat. Isot., 56 ( 2002 ) 457-459
2001
Akira Iwahara, Antonio E. de Oliveira, Luiz Tauhata, Carlos J. da Silva and Ricardo T.Lopes,
Intercomparison of 131 I and 99mTc activity measurements in Brazilian nuclear medicine services,
Appl. Rad. and Isot., 54 ( 2001 ) 489- 496
A. Iwahara, A. E.de Oliveira, L.Tauhata, R.T.Lopes and B.A. Meguerian, Study of the
performance of a radionuclide calibrator for activity measurements, International Symposium
of New Trends in Biophysics, Recife - Brazil ( 2001 )
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José Ubiratan Delgado, Akira Iwahara, Roberto Poledna, Carlos J. da Silva, Ricardo T. Lopes,
Luiz Tauhata, Absolute measurements of photon emission probabilities of 169Yb. Appl. Rad. and
Isot. ( 2001 ) 483-487
Monica A. L. Silva., Maria C. M. de Almeida, José U. Delgado, Evaluation of the half-lives for
differrent radiopharmaceuticals by means of gamma-ray spectrometry, International symposium
new trends in biophysics, Recife - Brazil ( 2001 )
2000
Akira Iwahara, José U. Delgado, Carlos J. da Silva, Roberto Poledna, and Ricardo T. Lopes,
Absolute Measurements of gamma-ray emission probabilities of 169Yb, Nucl. Instr. Meth. A 455
( 2000 ) 607- 611
Akira Iwahara, Antonio E. de Oliveira, Luiz Tauhata, L., C. J. da Silva, Ricardo T. Lopes,
Intercomparison of 131I and 99mTc Activity Measurements in Brazilian Nuclear Medicine
Services, Proceedings of the 10th International Congress of the International Radiation
Protection Association, Hiroshima - Japan ( 2000 )
Akira Iwahara e Carlos J. da Silva, Padronização absoluta e parâmetros nucleares de 139Ce, Anais
do V Encontro Nacional de Aplicações Nucleares, Rio de Janeiro – Brasil ( 2000 )
Carlos José da Silva, Akira Iwahara, A., Luiz Tauhata, Roberto Poledna, José Ubiratan Delgado,
and Rex Nazaré Alves, Absolute standardization of of a 58Co solution using the 4π−βγ coincidence
metrhod with germanium detector, Proceedings of the II Brazilian Congress of Metrology - São
Paulo – Brazil ( 2000 ) 345 - 350
Douglas C. de Barros, Roberto Poledna, Luiz Tauhata, José U. Delgado, Geraldo M. Sigaud,
Implementation of a 4πγ Calibration Sustem with well Type NaI(Tl) for Radionuclide with Complex
Decay Scheme, Proceedings of the II Brazilian Congress of Metrology - São Paulo - Brazil
( 2000 ) 283 - 288
Estela M. O. Bernardes, J. U. Delgado, C. J. da Silva, Akira Iwahara, Roberto Poledna, and
Anselmo S. Pascoa, 166m Ho a multigamma standard for Ge spectrometers, Proceedings of the II
Brazilian Congress of Metrology - São Paulo – Brazil ( 2000 ) 294 – 299
Jamir S. Loureiro, Luiz Tauhata, Paulo. A. L. da Cruz, José M. Los Arcos, Rex N. Alves,
Implantação do método CIEMAT-NIST no Laboratório de Metrologia das Radiações IonizantesLNMRI, da CNEN, Proceedings of the II Brazilian Congress of Metrology - São Paulo – Brazil
( 2000 ) 300 – 310
Luiz Tauhata, Maria E. C. Vianna, Antonio E. de Oliveira, Almir F. Clain, Ana Cristina M. Ferreira,
and Estela Maria O. Bernardes , The influence of uncertainties of measurements in laboratory
performance evaluation by intercomparison program in radionuclide analyses of environmental
samples. Proceedings of 10Th International Congress of International Radiation Protection
Association- IRPA-10- Hiroshima - Japan ( 2000 )
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