Education

PhD Candidate in Physics, State University of Londrina (UEL), Londrina, Brazil (2022-Present)
- Advisor: Avacir Casanova Andrello
- STEP Fellow: International Atomic Energy Agency, Austria (Supervisor: Kalliopi Kanaki)
- Scholarship: CAPES (Coordination for the Improvement of Higher Education Personnel)
M.S. in Physics, State University of Londrina (UEL), Londrina, Brazil (2020 - 2022)
- Thesis: “Análise Elementar por TXRF de Amostras de Saliva de Pacientes com Peri-Implantite” (Elemental Analysis using TXRF of Saliva Samples of Patients with Peri-Implantitis)
- Advisor: Avacir Casanova Andrello
B.S. in Physics, State University of Maringá (UEM), Maringá, Brazil (2016 - 2019)
- Thesis: “Espectroscopia de Impedância: Uma Visão Elétrica e Mecânica” (Impedance Spectroscopy: An Electrical and Mechanical View)
- Advisor: Fernando Carlos Messias Freire

Research Experience

Research Areas: Applied Nuclear Physics, Gamma-Ray Spectrometry, X-Ray Fluorescence, Mid-Infrared Spectroscopy, Soil Redistribution, Multivariate Analysis, Regression Models
Member, Applied Nuclear Physics Group, State University of Londrina (UEL) (2020 - Present)
STEP Fellowship (2025), Nuclear Science and Instrumentation Laboratory, International Atomic Energy Agency, Austria (six-month stay, during PhD)
- Supervisor: Kalliopi Kanaki
STEP Fellowship (2026), Soil and Water Management and Crop Nutrition Laboratory, International Atomic Energy Agency, Austria (three-month stay, during PhD)
- Supervisor: Gerd Dercon

Academic Service & Leadership

Fellow, Tutorial Education Program (PET-Physics), State University of Maringá (UEM) (2016 - 2019)
- Engaged in projects covering Teaching & Scientific Dissemination, Astronomy & Cosmology, Interdisciplinary Art-Science, and Phenomenology of Elementary Particles.

Professional Affiliations

Member, Sociedade Brasileira de Física (SBF) (Brazilian Physical Society) (Since 2024)
Member, Sociedade Brasileira para o Progresso da Ciência (SBPC) (Brazilian Society for the Advancement of Science) (Since 2020)

Complementary Training

Summer School on Experimental Nuclear Physics, Bahia Federal University, Brazil (2024, 30h)
Sediments Datings by 210Pb tracing, National Atomic Energy Commission, Argentina (2024, 40h)
Winter School of Chemometrics, University of Brasilia, Brazil (2023, 30h)
Brazilian Program on Spetroscopic Soil Analysis, Luiz de Queiroz Agricultural Studies Foundation, Online (2023, 21h)
Ricardo Rodrigues Synchrotron Light School, Brazilian Center for Research in Energy and Materials, Online (2022, 68h)
Medical Physics, State University of Maringá (UEM), Brazil (68h)

Skills

Programming & Tools: Python, Julia, LaTeX.
Languages:
- Portuguese: Native
- English: Fluent

Teaching and Outreach

Instructor: “Uma introdução a linguagem Python” (Introduction to Python) (2019)
Instructor: “LaTeX: Uma Introdução Prática” (Practical Introduction to LaTeX) (2018)
Instructor: “Astronomia: Pessoas, Eventos e Instrumentos” (Astronomy: People, Events, and Instruments) (2018)
Instructor: “CÂMARA DE NUVENS: UMA PROPOSTA EXPERIMENTAL DIDÁTICA” (Cloud Chamber: A Didactic Experimental Proposal) (Simpósio Nacional de ensino de Ciência e Tecnologia, 2018)
Instructor: “FÍSICA DE PARTÍCULAS E O MODELO PADRÃO: uma abordagem didática e experimental à comunidade acadêmica” (Particle Physics and the Standard Model: A Didactic and Experimental Approach) (XXI SulPET, 2018)
Instructor: “Experimentos que revolucionaram a física” (Experiments that Revolutionized Physics) (2019)

Publications

Archaeometric study of archaeological pottery from the Ventarrón-Collud Archaeological Complex – Lambayeque, Peru: A multi-technique approach using EDXRF, FTIR, XRD, gamma spectrometry, and principal component analysis

Desanti, C. S. A., Appoloni, C. R., Ikeoka, R. A., Suñer, M. M. A., Fagundes, M., Silva, F. A., ... & Samulewski, R. B. (2026). Archaeometric study of archaeological pottery from the Ventarrón-Collud Complex–Lambayeque, Peru: A multi-technique approach using EDXRF, FTIR, XRD, Gamma Spectrometry, and Principal Component Analysis. Radiation Physics and Chemistry, 113926

Be-7 Measurement in an Urban Area Using a Low-Resolution Gamma Spectrometer

Neto, A. Z. N.; Bastos, R. O.; Lopes, J. M. F.; Borsoi, B. W.; Ikeoka, R. A.; Melquiades, F. L.; Neri, V. da S. (2026). Be-7 Measurement in an Urban Area Using a Low-Resolution Gamma Spectrometer. Applied Radiation and Isotopes, 112529.

Orthogonal Bayesian Calibration of XRF Data for Geological Applications

Lopes, J. M. F., Gahle, D. S., Migliori, A., Kanaki, K.. Chemometrics and Intelligent Laboratory Systems, 105662.

Calibration transfer from HPGe to NaI(Tl) detectors for radionuclides quantification

Lopes, João M. F., Melquiades, Fábio L., Bastos, Rodrigo O., Neto, Angelo Z., Andrello, Avacir C. (2026). Calibration transfer from HPGe to NaI(Tl) detectors for radionuclides quantification. Journal of Environmental Radioactivity, 107885.

7Be measurements in agricultural soil using a low resolution NaI(Tl) detector

Borsoi, Bruno Winicius, Bastos, Rodrigo Oliveira, Neto, Angelo Zanona, Rodríguez, Duvan Gil, Lopes, João Marcos Fávaro, Andrello, Avacir Casanova, Muller, Marcelo Marques Lopes, Pott, Cristiano André, Melquiades, Fábio Luiz (2026). 7Be measurements in agricultural soil using a low resolution NaI(Tl) detector. Radiation Measurements, 107591.

Analysis of the first rain after a prolonged drought in southern Brazil using TXRF

Birelo, L. M., de Franca, A. M., Lopes, J. M. F., Andrello, A. C., & Jussiani, E. I. (2025). Analysis of the first rain after a prolonged drought in southern Brazil using TXRF. Radiation Physics and Chemistry, 113117.

XRF and gamma-ray data fusion for predicting key soil fertility attributes

Ribeiro, J. V., Lopes, J. M. F., Andrello, A. C., de Oliveira, J. F., Barbosa, G. M., Bastos, R. O., & Melquiades, F. L. (2025). XRF and gamma-ray data fusion for predicting key soil fertility attributes. Radiation Physics and Chemistry, 234, 112750.

Spectral deconvolution approach for Beryllium-7 detection: Evaluating soil redistribution with NaI(Tl) detectors

Lopes, J. M., Melquiades, F. L., Bastos, R. O., de Oliveira, J. F., Barbosa, G. M., & Andrello, A. C. (2024). Spectral deconvolution approach for Beryllium-7 detection: Evaluating soil redistribution with NaI (Tl) detectors. Radiation Physics and Chemistry, 225, 112153.

Gamma-rays and X-rays spectrometries applied to evaluate soil redistribution

Lopes, J. M. F., Ribeiro, J. V., Andrello, A. C., & Melquiades, F. L. (2024). Gamma-rays and X-rays spectrometries applied to evaluate soil redistribution. Journal of Environmental Radioactivity, 278, 107479.

Talks

MIRS and XRF Data Fusion for Improving Soil Fertility Attributes Prediction

May 07, 2026

Poster Presentation at EGU26 General Assembly, Vienna, Austria

‘Análise Espectral Multimodal para Avaliação de Fenômenos Erosivos em Solos Agrícolas’ (Multimodal Spectral Analysis for Evaluating Soil Erosion in Agricultural Areas)

December 16, 2025

Oral Presentation at II Workshop do Programa de Pós-Graduação em Física da UEL, Londrina, Brazil

May 02, 2025

Attendance at EGU General Assembly 2025, Vienna, Austria

João Marcos Fávaro Lopes

Education

Research Experience

Academic Service & Leadership

Professional Affiliations

Complementary Training

Skills

Teaching and Outreach

Publications

Archaeometric study of archaeological pottery from the Ventarrón-Collud Archaeological Complex – Lambayeque, Peru: A multi-technique approach using EDXRF, FTIR, XRD, gamma spectrometry, and principal component analysis

Be-7 Measurement in an Urban Area Using a Low-Resolution Gamma Spectrometer

Orthogonal Bayesian Calibration of XRF Data for Geological Applications

Calibration transfer from HPGe to NaI(Tl) detectors for radionuclides quantification

7Be measurements in agricultural soil using a low resolution NaI(Tl) detector

Analysis of the first rain after a prolonged drought in southern Brazil using TXRF

XRF and gamma-ray data fusion for predicting key soil fertility attributes

Spectral deconvolution approach for Beryllium-7 detection: Evaluating soil redistribution with NaI(Tl) detectors

Gamma-rays and X-rays spectrometries applied to evaluate soil redistribution

Talks

MIRS and XRF Data Fusion for Improving Soil Fertility Attributes Prediction

‘Análise Espectral Multimodal para Avaliação de Fenômenos Erosivos em Solos Agrícolas’ (Multimodal Spectral Analysis for Evaluating Soil Erosion in Agricultural Areas)

Bayesian Calibration of XRF Data for Geological Applications

Calibration Transfer from HPGe to NaI(Tl) Detectors for Radionuclides Quantification in Soil

‘O Físico como Pesquisador’ (The Role of the Physicist as a Researcher)

Optimizing Radiation Detection: Python-Based Methodologies for CZT Detectors

Spectral Deconvolution Approach for Beryllium-7 Detection: Evaluating Soil Redistribution with NaI(Tl) Detectors

Mid-Level Data Fusion with Gamma and X-Rays Spectra Applied to Soil Redistribution Evaluation: A Novel Approach

Exploratory Analysis of Gamma Spectrometry and EDXRF Applied to Soil Redistribution Evaluation in Agricultural Areas

Análise exploratória de amostras de solo por espectrometria gama para identificação de Berílio-7

Elemental analysis of saliva samples affected by peri-implant diseases using X-ray fluorescence