Associate Professor
Comilla University
Cumilla-3506, Bangladesh
Dr. Kawchar Patwary joined the Department of Physics in December 2014 as a Lecturer and has been serving as an Associate Professor since June 2021. He is an experimental nuclear physicist whose research spans nuclear physics, nuclear astrophysics, particle physics, and radiation & health physics. He actively collaborates with multidisciplinary research groups both nationally and internationally.
Most recently, Dr. Patwary was a Postdoctoral Visiting Researcher at the National Institute for Nuclear Physics (INFN), Trieste, Italy, where he contributed to the FAMU (Fisica degli Atomi MUonici) experiment. His work focused on the experimental data analysis for the precision measurement of the proton Zemach radius through hyperfine splitting in muonic hydrogen, a study with profound implications for quantum electrodynamics (QED) and the understanding of proton structure.
From 2022 to 2024, he served as a Postdoctoral Fellow at the Japan Atomic Energy Agency (JAEA), based at the ANNRI beamline of J-PARC’s Materials and Life Science Facility. There, he specialized in neutron capture cross-section measurements of enriched isotopes using high-flux neutron beams. His research contributed to nuclear data relevant to s-process nucleosynthesis in astrophysics, as well as applications in nuclear technology, neutron imaging, and non-destructive testing. He gained expertise in advanced detector systems, including NaI(Tl), LaBr₃(Ce), and HPGe detectors, and in analysis tools such as ROOT, PHITS, Geant4, and R-matrix methods.
Dr. Patwary earned his Ph.D. in Experimental Nuclear Physics from Kyushu University, Japan. His doctoral work involved neutron and charged-particle-induced reactions on light elements, particularly for developing accelerator-based neutron sources for medical radioisotope production and nuclear security.
At Comilla University, Dr. Patwary teaches courses in Nuclear Physics, Reactor Physics, Medical Physics, and Radiation & Health Physics, while also supervising the research and theses of M.Sc. students. His research continues to focus on nuclear data measurements, detector development, and applied nuclear physics with relevance to medicine, energy, and security.
He is a fellow of the World Academy of Sciences (TWAS), Italy, and the Abdus Salam International Centre for Theoretical Physics (ICTP), Italy. He has been awarded several prestigious scholarships and fellowships, including the JAEA Postdoctoral Fellowship, Monbukagakusho (MEXT) Scholarship, and TWAS-SISSA-Lincei Research Cooperation Award.
Dr. Patwary is a life member of the Bangladesh Physical Society (BPS) and the Bangladesh Medical Physics Association (BMPA). He is also a regular member of the Japan Society of Applied Physics (JSAP) and the Society for Dose Optimization in Targeted Radioisotope Therapy (TRT dose), Japan.
| Doctor of Engineering | Kyushu University | Plasma and Quantum Science and Engineering | 2020 |
| MS | University of Chittagong | Physics | 2010 |
| B.Sc. (Honours) | University of Chittagong | Physics | 2009 |
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National Institute for Nuclear Physics (INFN), Italy |
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Japan Atomic Energy Agency (JAEA), Japan |
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Department of Physics, Comilla University, Bangladesh |
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Advanced Sensing Technology Group, Mitsubishi Electric Corporation, Japan |
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Advanced Energy Engineering Sciences Department, Kyushu University, Japan |
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Advanced Energy Engineering Sciences Department, Kyushu University, Japan |
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Department of Physics, Comilla University, Bangladesh |
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Department of Natural Science (Physics), Port City International University, Bangladesh |
| 1 |
Md Kawchar Ahmed Patwary et. al. :
Measurement of the thermal neutron capture cross-section of Ir-191 at ANNRI MLF J-PARC
, Journal of Nuclear Science and Technology , no.10 , doi:10.1080/00223131.2024.2334757 vol.61 , pp.1385-1396 , April , 2024 . |
| 2 |
.... Md Kawchar Ahmed Patwary et al. :
Gel-in-water nanodispersion for potential application in intravenous delivery of anticancer drugs
, Journal of Bioscience and Bioengineering , no.2 , doi:10.1016/j.jbiosc.2021.10.001 vol.133 , pp.174-180 , February , 2022 . |
| 3 |
.... Md Kawchar Ahmed Patwary et al. :
Studies of dosimetry protocols for accelerated photons and electrons delivered from medical linear accelerator
, East European Journal of Physics , doi:10.26565/2312-4334-2021-1-03 vol.1 , pp.20-26 , March , 2021 . |
| 4 |
.... Md Kawchar Ahmed Patwary et al. :
Development and characterization of gel-in-water nanoemulsion as a novel drug delivery system
, Materials Science and Engineering C , doi:10.1016/j.msec.2021.112076 vol.124 , pp.1120761-10 , May , 2021 . |
| 5 |
Md. Kawchar Ahmed Patwary et al. :
Measurement of double-differential thick-target neutron yields of the C(d, n) reaction at 12, 20, and 30 MeV
, Journal of Nuclear Science and Technology , no.2 , doi:10.1080/00223131.2020.1819908 vol.58 , pp.252-258 , September , 2021 . |
| 6 |
.... Md Kawchar Ahmed Patwary et al. :
Uncertainty estimation of conventional neutron-spectrum unfolding codes with Monte-Carlo based method
, JAEA-Conf 2020-001 , Japan Atomic Energy Agency (JAEA) , doi:10.11484/jaea-conf-2020-001 vol.INDC(JPN)-206 , pp.205-210 , December , 2020 . |
| 7 |
.... Md. Kawchar Ahmed Patwary et al. :
Suitability of chambers in relative dose measurement of small fields for accelerated photon delivered by a medical linear accelerator
, Iranian Journal of Medical Physics , doi:10.22038/ijmp.2020.46202.1721 vol.18 , pp.293-299 , August , 2020 . |
| 8 |
Md Kawchar Ahmed Patwary et al. :
Separation yield and DOTA labeling efficiency of Cu-64 produced with accelerator-based neutrons
, Physical and Engineering Sciences in Medicine , no.1 , doi:10.1007/s13246-019-00826-6 vol.43 , pp.398 , January , 2020 . |
| 9 |
.... Md Kawchar Ahmed Patwary et al. :
Production Method of Environmental Tracer 132Cs by Accelerator-based Neutron
, EPJ Web of Conferences , doi:10.1051/epjconf/202023920002 vol.239 , pp.200021-4 , September , 2020 . |
| 10 |
.... Md Kawchar Ahmed Patwary et al. :
Development of MC-based uncertainty estimation technique of unfolded neutron spectrum by multiple-foil activation method
, EPJ Web of Conferences , doi:10.1051/epjconf/202023901021 vol.239 , pp.010211-4 , September , 2020 . |
| 11 |
Md Kawchar Ahmed Patwary et al. :
Feasibility study of radioisotope Cs-132 production using accelerator-based neutrons
, Evergreen , no.4 , doi:10.5109/2547352 vol.6 , pp.280-284 , December , 2019 . |
| 12 |
.... Md Kawchar Ahmed Patwary et al. :
Effective Point of Measurement (EPOM) of Some Ionization Chambers for High Energy Photon Beam Dosimetry used in Radiotherapy for the Treatment of Cancer Patient
, Biomedical Journal of Scientific & Technical Research , no.1 , doi:10.26717/BJSTR.2019.21.003539 vol.21 , pp.15539-15545 , August , 2019 . |
| 13 |
.... Md Kawchar Ahmed Patwary et al. :
Measurements of Entrance Surface Dose and Effective Dose of Patients in Diagnostic Radiography
, Biomedical Journal of Scientific & Technical Research , no.1 , doi:10.26717/BJSTR.2018.12.002186 vol.12 , pp.1-5 , December , 2018 . |
| 14 |
Md Kawchar Ahmed Patwary et al. :
DDTTNY Measurement of Accelerator-based Neutron via C(d, n) Reaction by 30-MeV Deuteron by means of Multiple-foil Activation Method
, IEICES , Interdisciplinary Graduate School of Engineering Sciences, Kyushu University , doi:10.15017/1961303 vol.4 , pp.124-126 , October , 2018 . |
| 15 |
.... Md Kawchar Ahmed Patwary et al. :
A Study of Measurement of Relative Dose with Various Chamber for Small Field Dosimetry of 6 MV Photon Beam
, Nuclear Science and Application , no.1 & 2 vol.26 , pp.23-27 , December , 2017 . |
| 16 |
Md Kawchar Ahmed Patwary et al. :
Direct Measurement and Optimization of Internal Radionuclides by Whole Body Counting System
, Bangladesh Journal of Physics vol.20 , pp.1-6 , November , 2016 . |
| 17 |
.... Md Kawchar Ahmed Patwary :
A Review of the Study on the Electromigration and Power Electronics
, Journal of Electronics Cooling and Thermal Control , no.1 , doi:10.4236/jectc.2016.61002 vol.6 , pp.19-31 , March , 2016 . |
| 18 |
.... Md Kawchar Ahmed Patwary et al. :
Dosimetry of I-131 for Occupational Radiation Workers by Whole Body Counting System
, International Letters of Chemistry, Physics and Astronomy , doi:10.18052/WWW.SCIPRESS.COM%2FILCPA.39.21 vol.39 , pp.21-27 , October , 2014 . |
| 19 |
Md Kawchar Ahmed Patwary et al. :
Measurements of K-40 in the Human Body Using Whole Body Counting (WBC) System – Possible Relationship of Enhanced Intake of Radioactive K-40 with Body Height, Weight, and Age
, Bangladesh Journal of Physics vol.13 , pp.103-108 , October , 2013 . |
| 1 |
Md Kawchar Ahmed Patwary et al. :
Development of a composite neutron converter for DDTTNY measurements: A Monte Carlo simulation study,
Ibaraki, Japan:
Particle and Heavy Ion Transport code System Workshop, February, 2025. |
| 2 |
Md Kawchar Ahmed Patwary :
FAMU General Meeting,
Trieste, Italy:
(Participation), May, 2025. |
| 3 |
Md. Kawchar Ahmed Patwary et al. :
Neutron capture cross section measurement and resonance parameter analysis of Ir-191,
Tokyo, Japan:
70th JSAP Spring Meeting, March, 2023. |
| 4 |
.... Md Kawchar Ahmed Patwary et al. :
Radioactivity distribution measurement of cesium in plants using Cs-132 produced by accelerator-based neutron method,
Fukuoka, Japan:
39th Research Presentation Lecture of the Atomic Energy Society of Japan Kyushu Branch, December, 2020. |
| 5 |
.... Md Kawchar Ahmed Patwary et al. :
Autoradiography application of Cs-132 produced by means of accelerator-based neutron method,
Fukushima, Japan:
2020 Annual Meeting of Atomic Energy Society of Japan (AESJ), March, 2020. |
| 6 |
Md Kawchar Ahmed Patwary et al. :
Estimation of Patient Doses from Medical Radioisotope Cu-64 by Using PHITS Code with Voxel Phantom JM and JF,
119th Scientific Meeting of the Japan Society of Medical Physics (JSMP), JRC 2020 [Web], June, 2020. |
| 7 |
Md Kawchar Ahmed Patwary et and al. :
Separation yield and DOTA labeling efficiency of Cu-64 produced with accelerator-based neutrons,
Perth, Australia:
19th Asia-Oceania Congress of Medical Physics (AOCMP) & the 2019 Engineering & Physical Sciences in Medicine Conference (EPSM), October, 2019. |
| 8 |
.... Md Kawchar Ahmed Patwary et al. :
Observation of cesium removal experiment from the soil with environmental tracer Cs-132 produced by the accelerator-based neutron method,
Fukuoka, Japan:
38th Research Presentation Lecture of the Atomic Energy Society of Japan Kyushu Branch, December, 2019. |
| 9 |
Md Kawchar Ahmed Patwary et al. :
Feasibility study of environmental tracer Cs-132 produced by accelerator-based neutrons,
Fukuoka, Japan:
Symposium on Technology of Proton/Heavy Ion Beam Therapy, March, 2019. |
| 10 |
Md Kawchar Ahmed Patwary et al. :
Estimation of Patient Dose from Medical Radioisotope Cu-64 Accumulated in the Liver,
Shanghai, China:
21st Cross Straits Symposium on Energy and Environmental Science and Technology (CSS-EEST21), November, 2019. |
| 11 |
Md Kawchar Ahmed Patwary et al. :
DDTTNY Measurement of Accelerator-based Neutron via C(d, n) Reaction by 30-MeV Deuteron by means of Multiple-foil Activation Method,
Fukuoka, Japan:
4th International Exchange and Innovation Conference on Engineering & Sciences (IEICES), October, 2018. |
| 12 |
Md Kawchar Ahmed Patwary et al. :
Direct Measurement and Optimization of Internal Radionuclides by Whole Body Counting System,
Dhaka, Bangladesh:
International Conference on Physics, March, 2016. |
| 13 |
Md Kawchar Ahmed Patwary :
College on Medical Physics: Enhancing the Role of Physicists in Clinical Medical Imaging: Procedure Optimization, Quality Assurance, Risk Management, Training,
Trieste, Italy:
The Abdus Salam International Centre for Theoretical Physics (ICTP), September, 2016. |
| 14 |
Md Kawchar Ahmed Patwary et al. :
Internal Radiation Dosimetry by Whole Body Counting (WBC) system,
Dhaka, Bangladesh:
National Conference on Physics Research and Education in Bangladesh, April, 2015. |
| 15 |
Md Kawchar Ahmed Patwary et al. :
Dose assessment to the occupational workers due to intake of radionuclides by Whole Body Counting (WBC) system,
Dhaka, Bangladesh:
International Conference on Physics for Energy & Environment, March, 2014. |
| 16 |
Md Kawchar Ahmed Patwary et al. :
Measurement of Internal Dose by Whole Body Counting System and Associated Radiological Risk for Cancer Incidence,
Chittagong, Bangladesh:
National Conference on Progress in Physics, March, 2013. |
| 17 |
Md Kawchar Ahmed Patwary et al. :
Assessment of the Internal Contamination of I-131 for the Occupational Radiation Workers following the Whole-Body Counting (WBC) Experience,
Dhaka, Bangladesh:
National Conference on Physics for Technology Development, December, 2012. |
| 18 |
Md Kawchar Ahmed Patwary et al. :
Assessment of occupational exposure due to intake of radionuclides by direct measurement,
Dhaka, Bangladesh:
7th SAARC Federation of Oncologists International Cancer Conference, December, 2012. |
