NSR Query Results
Output year order : Descending NSR database version of May 10, 2024. Search: Author = C.J.da Silva Found 16 matches. 2021SI11 Appl.Radiat.Isot. 170, 109559 (2021) R.F.P.Simoes, C.J.da Silva, R.L.da Silva, L.V.de Sa, R.Poledna, A.E.de Oliveira, A.Iwahara, P.A.L.da Cruz, J.U.Delgado Standardization of 223Ra by live-time anticoincidence counting and gamma-ray emission determination RADIOACTIVITY 223Ra(α); measured activity concentrations by 4πβαγ live-time anticoincidence counting (LTAC) method, Eγ, Iγ, E(x ray), I(x ray) using ionization chambers, scintillation detectors, and HPGe detector at LNMRI lab in Rio de Janeiro; deduced activity standardization of 223Ra source, emission probabilities of x rays and γ rays. Comparison with evaluated data by DDEP-LNHB.
doi: 10.1016/j.apradiso.2020.109559
2020GO11 Appl.Radiat.Isot. 166, 109323 (2020) R.S.Gomes, J.U.Delgado, C.J.da Silva, R.L.da Silva, P.A.L.da Cruz, A.L.Ferreira Filho, M.C.M.de Almeida, A.Iwahara, A.E.de Oliveira, L.Tauhata Measurement of the absolute gamma emission intensities from the decay of Th-229 in equilibrium with progeny RADIOACTIVITY 229Th(α); measured decay products, Eγ, Iγ. 229Th, 221Fr, 213Bi, 209Tl; deduced γ-ray energies and intensities. Comparison with available data.
doi: 10.1016/j.apradiso.2020.109323
2017DA31 Appl.Radiat.Isot. 122, 37 (2017) C.J.da Silva, E.A.Rezende, R.Poledna, L.Tauhata, A.Iwahara, R.T.Lopes Standardization of 106Ru/Rh by live-timed anticoincidence counting and gamma emission determination RADIOACTIVITY 106Ru(β-); measured decay products, Eγ, Iγ; deduced γ-ray energies and intensities, standartization by anticoincidence method. Comparison with available data.
doi: 10.1016/j.apradiso.2017.01.007
2012DA06 Appl.Radiat.Isot. 70, 1924 (2012) C.J.da Silva, A.Iwahara, D.S.Moreira, J.U.Delgado, R.S.Gomes 57Co half-life determination RADIOACTIVITY 57Co(EC); measured decay products, Eγ, Iγ; deduced T1/2 and its uncertainty. Comparison with available data.
doi: 10.1016/j.apradiso.2012.02.038
2012RE25 Appl.Radiat.Isot. 70, 2081 (2012) E.A.Rezende, A.R.Correia, A.Iwahara, C.J.da Silva, L.Tauhata, R.Poledna, R.L.da Silva, E.M.de Oliveira, A.E.de Oliveira Radioactivity measurements of 177Lu, 111In and 123I by different absolute methods RADIOACTIVITY 111In, 123I(EC); 177Lu(β-); measured Eγ, Iγ, Eβ, Iβ, absolute activities by 4πβγ coincidence method, half-lives. Comparison with previous measurements.
doi: 10.1016/j.apradiso.2012.02.067
2009IW01 Nucl.Instrum.Methods Phys.Res. A602, 450 (2009) A.Iwahara, J.U.Delgado, R.Poledna, C.J.da Silva, M.C.M.de Almeida, R.L.da Silva Primary radioactivity standardization and gamma intensities determination of 124Sb RADIOACTIVITY 124Sb(β-); measured Eγ, Iγ, βγ-coin.
doi: 10.1016/j.nima.2009.01.021
2006DA20 Appl.Radiat.Isot. 64, 1440 (2006) M.A.L.da Silva, R.Poledna, A.Iwahara, C.J.da Silva, J.U.Delgado, R.T.Lopes Standardization and decay data determinations of 125I, 54Mn and 203Hg RADIOACTIVITY 54Mn, 125I, 203Hg; measured Eγ, Iγ; deduced photon emission probabilities.
doi: 10.1016/j.apradiso.2006.02.058
2004DA05 Appl.Radiat.Isot. 60, 301 (2004) M.A.L.da Silva, M.C.M.de Almeida, C.J.da Silva, J.U.Delgado Use of the reference source method to determine the half-lives of radionuclides of importance in nuclear medicine RADIOACTIVITY 67Ga, 123I(EC); 99mTc(IT), (β-); 131I(β-); measured T1/2 relative to 60Co, 137Cs. Reference source method.
doi: 10.1016/j.apradiso.2003.11.032
2004DA06 Appl.Radiat.Isot. 60, 415 (2004) P.A.L.da Cruz, A.Iwahara, E.M.O.Bernardes, C.J.da Silva The absolute standardization of 32P and 204Tl at LNMRI RADIOACTIVITY 32P, 204Tl(β-); measured Eγ, Iγ, βγ-coin.
doi: 10.1016/j.apradiso.2003.11.051
2004DE02 Appl.Radiat.Isot. 60, 307 (2004) K.C.de Souza, M.L.da Silva, J.U.Delgado, R.Poledna, R.T.Lopes, C.J.da Silva Measurements of nuclear data parameters of 201Tl by gamma-ray spectrometry RADIOACTIVITY 201Tl(EC); measured Eγ, Iγ, T1/2; deduced emission probabilities.
doi: 10.1016/j.apradiso.2003.11.033
2002BE04 Appl.Radiat.Isot. 56, 157 (2002) E.M.O.Bernardes, J.U.Delgado, L.Tauhata, C.J.da Silva, A.Iwahara, R.Poledna, A.S.Paschoa 166mHo: A multi-γ standard for the calibration of Ge spectrometers RADIOACTIVITY 166mHo(β-); measured Eγ, Iγ, X-ray spectra, βγ-coin; deduced photon emission probabilities. 166Er deduced transition intensities. Application to detector calibration discussed.
doi: 10.1016/S0969-8043(01)00182-8
2002DA01 Appl.Radiat.Isot. 56, 169 (2002) C.J.da Silva, J.U.Delgado, A.Iwahara, L.Tauhata, R.Poledna, R.N.Alves Absolute Determination of Activity per Mass and Half-Life Measurements of 152Eu RADIOACTIVITY 152Eu(β-), (EC); measured Eγ, Iγ, βγ-coin, T1/2; deduced source activity.
doi: 10.1016/S0969-8043(01)00184-1
2001DE06 Appl.Radiat.Isot. 54, 483 (2001) J.U.Delgado, A.Iwahara, R.Poledna, C.J.Da Silva, R.T.Lopes, L.Tauhata Absolute Measurements of Photon Emission Probabilities of 169Yb RADIOACTIVITY 169Yb(EC); measured Eγ, Iγ, (EC)γ-coin, T1/2; deduced photon emission probabilities.
doi: 10.1016/S0969-8043(00)00294-3
2000IW06 Nucl.Instrum.Methods Phys.Res. A455, 607 (2000) A.Iwahara, J.U.Delgado, R.Poledna, C.J.da Silva, R.T.Lopes Absolute Measurements of γ-Ray Emission Probabilities of 169Yb RADIOACTIVITY 169Yb(EC); measured Eγ, Iγ, (X-ray)γ-coin; deduced γ-ray and X-ray emission probabilities.
doi: 10.1016/S0168-9002(00)00526-X
1994IW04 Nucl.Instrum.Methods Phys.Res. A339, 381 (1994) A.Iwahara, I.P.A.Salati, R.Poledna, C.J.da Silva, L.Tauhata Influence from Delayed Events on the Activity Determination of 75Se by the Coincidence Counting Method RADIOACTIVITY 75Se(EC); measured γ(X-ray)-, βγ-coin; deduced source solution activity concentration. 4π βγ-coincidence counting system with 4π gas flow proportional counter coupled to large NaI(Tl) detector.
doi: 10.1016/0168-9002(94)91835-X
1990IW04 Nucl.Instrum.Methods Phys.Res. A286, 370 (1990) A.Iwahara, M.H.H.Marechal, C.J.Da Silva, R.Poledna Determination of the Activity Concentration of a 125I Solution by X-(X, γ) Coincidence Counting and an Efficiency Extrapolation Curve RADIOACTIVITY 125I(EC); measured γ-spectra, (X-ray)γ-coin; deduced disintegration rate. 125Te level deduced emission probability. Efficiency extrapolation curve, activity concentration determination.
doi: 10.1016/0168-9002(90)90880-F
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