Education

• Ph.D. in Engineering — The University of Osaka, Japan (2021–2025).
  Graduate School of Engineering, Sustainable Energy & Environmental Engineering, Nuclear Science & Energy Engineering. Thesis: Development of a Real-time Gamma-ray Energy Spectrum and Dose Rate Monitor for Radiation Therapy Facilities.
• M.Res. (Cancer Biology & Therapy) — University of Central Lancashire, UK (2019–2020).
  Thesis: Quantum and Carbon Dots for Fluorescent Imaging and Cancer Detection.
• Integrated B.Eng./M.Eng.-equivalent — National Technical University of Athens, Greece (2012–2019).
  School of Applied Mathematical & Physical Sciences (Optoelectronics/Lasers/Advanced Materials). Thesis: Detection of DNA Double-Strand Breaks due to Ti:Sapphire Laser Irradiation using γ-H2AX foci.
• Arsakeio High School — Psychiko, Greece (2010–2012).

Post-doctoral Appointment

• Specially Appointed Researcher (Full-time) — The University of Osaka (2025– ). Project: Building a research data ecosystem to promote AI utilization.

Publications

1. Voulgaris N., Miyoshi T., Tamaki S., Kusaka S., Murata I. Development of Real-Time Gamma-Ray Spectrum and Dose Monitor Investigation of True Real-Time Convergence. Proceedings of the 37th Workshop on Radiation Detectors and their Uses, KEK, Tsukuba, Japan, 2024, pp.30–42. Link.
2. Voulgaris N., Nishimura H., Tamaki S., Kusaka S., Murata I. Balancing Performance and Portability: A Study on CsI(Tl) Crystal Sizes for Real-Time Gamma-Ray Spectrum and Dose Monitoring. Radiation 4(3):213–223, 2024. doi:10.3390/radiation4030016
3. Murata I., Voulgaris N., Miyoshi T., Shinohara M., Nishimura H., Kobayashi M., Kusaka S., Tamaki S., Sato F. Real-time gamma-ray energy spectrum / dose monitor with k-α method based on sequential Bayesian estimation. Applied Radiation and Isotopes 212, 111454, 2024. doi:10.1016/j.apradiso.2024.111454
4. Nishimura H., Shinohara M., Miyoshi T., Voulgaris N., Kusaka S., Tamaki S., Sato F., Murata I. Experimental verification of real-time gamma-ray energy spectrum and dose monitor. Applied Radiation and Isotopes 185, 110226, 2022. doi:10.1016/j.apradiso.2022.110226
5. Kusaka S., Voulgaris N., Onishi K., Ueda J., Saito S., Tamaki S., Murata I., Takata T., Suzuki M. Therapeutic Effect of Boron Neutron Capture Therapy on Boronophenylalanine Administration via Cerebrospinal Fluid Circulation in Glioma Rat Models. Cells 13(19), 2024. doi:10.3390/cells13191610
6. Qiu J., Hatano D., Ge Y., Voulgaris N., Sagara K., Qiao Z., Tamaki S., Kusaka S., Takata T., Murata I. Preliminary study of a compact epithermal neutron absolute flux intensity measurement system for real-time in-vivo dose monitoring in boron neutron capture therapy. Radiation Measurements 107308, Oct 2024. doi:10.1016/j.radmeas.2024.107308
7. Oral Presentations — Voulgaris N. Development of Real-time Gamma-Ray Spectrum and Dose Monitor, Young Researcher’s BNCT Meeting, Nov 2022.
8. Oral Presentations — Voulgaris N. Investigation of True Real-time Convergence, 37th Workshop on Radiation Detectors and Their Uses, KEK, Jan 2023.
9. Oral Presentations — Voulgaris N. Development of a Real-Time Gamma-Ray Spectrum and Dose Measurement Device for Medical Settings (Accelerator Facilities), 32nd Comprehensive Symposium on Radiation Applications, Osaka Nuclear Science Association, Jan 2024. Handout.
10. Poster Presentations — Voulgaris N., Sumi H., Kusaka S., Tamaki S., Murata I. Experimental verification of real-time gamma-ray energy spectrum and dose monitor up to 3 MeV gamma-rays, 11th International Symposium on Radiation Safety and Detection Technology (ISORD-11), Hanyang University, Jul 2023. Abstract Book.
11. Poster Presentations — Voulgaris N., Miyoshi T., Tamaki S., Kusaka S., Murata I. Development of Real-time Gamma-Ray Spectrum and Dose Monitor: Investigation of Application in BNCT, The 19th Congress on Neutron Capture Therapy, Yokohama, Jul 2023. Abstract to appear in Therapeutic Radiation and Oncology Journal.

Theses

• Doctoral Thesis — “Development of a Real-time Gamma-ray Energy Spectrum and Dose Rate Monitor for Radiation Therapy Facilities.” Supervisor: Dr. I. Murata (The University of Osaka, Japan).
• Master’s Thesis — “Quantum and Carbon Dots for Fluorescent Imaging and Cancer Detection.” Supervisor: Dr. M. Krysmann (University of Central Lancashire, UK).
• Bachelor’s Thesis — “Detection of DNA Double-Strand Breaks due to LASER Ti:Sapphire Irradiation using the method γ-H2AX foci.” Supervisor: Dr. A. Georgakilas (National Technical University of Athens, Greece).

Teaching & Outreach

• Teaching Assistant — Quantum Metrology (量子計測) (2022); Science & Technology English II (科学技術英語) (2023–2024).
• High-school outreach — Physics experiment demonstrations (2022); public OKTAVIAN facility tours (Icho Festival 2022–2023).
• Multilingual talks & ad-hoc JP↔EN interpreting in research settings.

Skills

• Detection & Spectroscopy — Scintillators (CsI(Tl)), MPPC, DPP/DP5; spectrum unfolding (Bayesian, k-α).
• Simulation — PHITS, MCNP; mixed-field modeling, source/geometry setup.
• Lab Techniques — Gamma spectrometry; HPLC; Mass spectrometry (MS, MALDI-TOFMS); cell culture; flow cytometry; Western blot.
• Data & Software — Python (intermediate), MATLAB, C/C++; OriginLab; SPSS; ImageJ/Fiji; MS Office.
• Languages — Greek (native), English (C2; IELTS 8.0), Japanese (JLPT N2/C1), German (B1).

Awards

• Eight-University Engineering Consortium “Doctoral Forum” — Core Member, contribution award (Mar 2024).
• Japanese Government (MEXT) Doctoral Research Scholarship — Embassy Recommendation (Oct 2021–Oct 2024).

Certifications & Training

• Introduction to the Biology of Cancer — Johns Hopkins University (2018).
• Full-speed Python — Educative, Inc. (2022).
• “11th Seminar on BNCT” (第11回BNCT講習会) — 14 Jul 2023.
• Osaka University Collaborative Radiation Education Program — Completed Mar 2025.

Contact

Division of Sustainable Energy and Environmental Engineering, Graduate School of Engineering, The University of Osaka.
2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.

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