Robert CHEHAB | Experimental methods | Best Innovation Award

Dr.Robert CHEHAB | Experimental methods | Best Innovation Award

Accelerator physicist at IN2P3/CNRS in France

Dr. Robert Chehab, born on October 22, 1937, in Alexandria, Egypt, is a renowned physicist specializing in accelerator physics. He holds French nationality and has had a prestigious academic and scientific career. Dr. Chehab completed his engineering degree from the prestigious École Nationale Supérieure des Télécommunications (now TELECOM-Paris-Tech) in 1963, followed by a PhD in Physical Sciences from Université d’Orsay in 1975. His work has been instrumental in advancing our understanding of positron sources, channeling radiation, and radiation physics. Over his career, he has collaborated with leading institutions such as CERN, KEK, DESY, and SLAC. As a scientist and educator, he has mentored PhD students in radiation and positron source research. Fluent in five languages, Dr. Chehab has contributed significantly to accelerator physics research globally.

Profile:

Education:

Dr. Robert Chehab’s academic journey began at the École Nationale Supérieure des Télécommunications (ENST), now known as TELECOM-Paris-Tech, where he obtained his engineering degree in 1963. His rigorous technical education at ENST laid the foundation for his subsequent focus on accelerator physics. In 1975, he earned his PhD (Docteur-Ingénieur en Sciences Physiques) from the Université d’Orsay. His PhD work explored fundamental concepts in radiation physics and beam dynamics, setting the stage for a prolific research career. Throughout his educational journey, Dr. Chehab showed a deep understanding of complex scientific phenomena such as Cherenkov radiation, positron sources, and channeling radiation, positioning himself as a leading figure in his field. His multidisciplinary expertise has also allowed him to maintain fluency in French, English, Italian, Russian, and Arabic, further enhancing his global scientific impact.

Professional experience:

Dr. Robert Chehab has accumulated extensive experience in both academic and international research environments. He has spent a significant portion of his career at Université Paris-Saclay, where he has led various research projects on accelerator physics. Dr. Chehab has worked in prestigious laboratories worldwide, including extended stays at KEK in Japan, where he conducted research on positron sources and channeling radiation. He also contributed to experiments at DESY in Germany, focusing on transition radiation, and collaborated with BINP-Novosibirsk on channeling radiation studies. His leadership at CERN, particularly in the WA 103 experiment, has cemented his reputation as a leader in accelerator and radiation physics. Additionally, Dr. Chehab has supervised PhD students and played a critical role in mentoring the next generation of scientists.

Research focus:

Dr. Robert Chehab’s research focuses primarily on accelerator physics, with an emphasis on radiation studies. His work spans various topics, including positron sources, channeling radiation, Cherenkov radiation, transition radiation, and photoemission. He has been actively involved in understanding and developing novel radiation physics techniques for advanced accelerator applications. Dr. Chehab’s research also delves into beam dynamics and RF deflectors, expanding the theoretical and practical frameworks of accelerator science. His notable collaborations with CERN on positron source development for the LEP experiment and SLAC on crystal radiator damage tests have pushed the boundaries of what is known about particle interactions with radiation. His work is essential for innovations in particle accelerators, helping to develop the technology used in numerous high-energy physics experiments.

Awards & Honor:

Throughout his distinguished career, Dr. Robert Chehab has been recognized for his contributions to accelerator physics and radiation studies. He has been involved in numerous international collaborations with esteemed institutions such as CERN, KEK, SLAC, and DESY, where his innovative research in positron sources and radiation physics has earned him accolades. Dr. Chehab’s leadership in major projects, such as the LEP positron source collaboration at CERN, has further solidified his stature in the scientific community. His research has been published in leading journals like Nuclear Instruments and Methods, Physical Review, and Physics Letters. While his awards and recognitions are primarily rooted in his research, his contribution to academic mentorship, especially his guidance of PhD students in advanced radiation physics, has been equally commendable. His work continues to impact both experimental methods and the broader scientific community.

Publication Top Notes:

  • From bremsstrahlung to channeling radiation: A promising way for positron generation
    Chehab, R.
    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2024, 1060, 169056
    Citations: 0
  • Advantages of hybrid positron sources with granular converters
    Chehab, R., Chaikovska, I., Alharthi, F., Wallon, S., Sievers, P.
    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2024, 1060, 168994
    Citations: 0
  • Benchmarking the FCC-ee positron source simulation tools using the SuperKEKB results
    Alharthi, F., Chaikovska, I., Chehab, R., Miyahara, F., Mytrochenko, V.
    Journal of Physics: Conference Series, 2024, 2687(2), 022010
    Citations: 0
  • Radiation in oriented crystals: Innovative application to future positron sources
    Soldani, M., Alharthi, F., Bandiera, L., Sytov, A., Tikhomirov, V.
    Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2024, 1058, 168828
    Citations: 1
  • Crystal-based pair production for a lepton collider positron source
    Bandiera, L., Bomben, L., Camattari, R., Tikhomirov, V., Vallazza, E.
    European Physical Journal C, 2022, 82(8), 699
    Citations: 6
  • Positron sources: From conventional to advanced accelerator concepts-based colliders
    Chaikovska, I., Chehab, R., Kubytskyi, V., Hogan, M.J., Martyshkin, P.
    Journal of Instrumentation, 2022, 17(5), P05015
    Citations: 12
  • HE-LHC: The High-Energy Large Hadron Collider: Future Circular Collider Conceptual Design Report Volume 4
    Abada, A., Abbrescia, M., AbdusSalam, S.S., Zupan, J., Zurita, J.
    European Physical Journal: Special Topics, 2019, 228(5), pp. 1109–1382
    Citations: 159
  • FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3
    Abada, A., Abbrescia, M., AbdusSalam, S.S., Zupan, J., Zurita, J.
    European Physical Journal: Special Topics, 2019, 228(4), pp. 755–1107
    Citations: 501
  • FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1
    Abada, A., Abbrescia, M., AbdusSalam, S.S., Zupan, J., Zurita, J.
    European Physical Journal C, 2019, 79(6), 474
    Citations: 540
  • FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2
    Abada, A., Abbrescia, M., AbdusSalam, S.S., Zupan, J., Zurita, J.
    European Physical Journal: Special Topics, 2019, 228(2), pp. 261–623
    Citations: 619

Conclusion:

Dr. Robert Chehab’s extensive experience, significant contributions to accelerator physics, and international collaborations make him a strong candidate for the Best Researcher Award. His mentorship and prolific publication record add to his credentials. To further elevate his impact, engaging with newer fields of research and amplifying his public outreach would strengthen his candidacy for future recognitions.

 

Priyanka Sahu | Experimental methods | Young Scientist Award

Dr. Priyanka Sahu | Experimental methods | Young Scientist Award

Assistant Professor at Rajiv Gandhi University of Knowledge of Technologies-RK Valley (AP-IIIT RK Valley), India

Dr. Priyanka Sahu is an accomplished academic and researcher, currently serving as an Assistant Professor in the Department of Electronics and Communication Engineering at Rajiv Gandhi University of Knowledge Technologies (AP-IIIT), Idupulapaya, Andhra Pradesh. With a solid foundation in Physics and Astronomy (Materials Science), she holds an M.Tech degree from NIT Rourkela and a Ph.D. from IIT Indore. Her research focuses on the development of high entropy alloys and soft magnetic materials, with expertise in experimental methodologies such as sol-gel auto-combustion and mechanical alloying. Dr. Sahu has published numerous high-impact papers, presented at international conferences, and received prestigious accolades like the Best Researcher Award and Best Oral Presentation. She is a passionate educator and an innovative thinker, contributing significantly to both research and academia.

Profile:

Education

Dr. Priyanka Sahu has pursued an impressive academic journey, earning her Ph.D. in Materials Science from the Indian Institute of Technology Indore (IITI) in 2023, where her dissertation focused on developing and characterizing high-entropy soft magnetic alloys. She holds an M.Tech (Research) degree in Physics and Astronomy with a specialization in Materials Science from the National Institute of Technology Rourkela (NITR) in 2017, during which she studied the electrical and magnetic properties of modified strontium hexaferrite. Prior to this, she completed her Bachelor of Engineering in Electronics and Telecommunication at the Government Engineering College Bilaspur in 2014, following a diploma in the same discipline from the Government Polytechnic College Ambikapur in 2011. Throughout her academic journey, Dr. Sahu has consistently maintained high honors and distinctions, showcasing her dedication to research and learning.

 

Professional experience

Dr. Priyanka Sahu has accumulated diverse teaching and research experience. She is currently serving as an Assistant Professor in the Department of Electronics and Communication Engineering at Rajiv Gandhi University of Knowledge Technologies (AP-IIIT), Idupulapaya, Andhra Pradesh, since March 2024. Prior to this, Dr. Sahu worked as a Teaching Assistant and researcher at IIT Indore from 2017 to 2023, during which she handled multiple labs and courses related to physical metallurgy and material science. Her research experience also includes working at NIT Rourkela in a Physics Laboratory. Dr. Sahu has expertise in handling various high-end instruments such as X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Differential Scanning Calorimetry (DSC), which are crucial in material characterization. She has also participated in numerous national and international conferences as a presenter and invited speaker, furthering her knowledge and sharing insights into her specialized research areas.

Research focus

Dr. Priyanka Sahu’s research is centered around the development of advanced materials, particularly high-entropy alloys (HEAs), soft magnetic materials, and magnetocaloric materials. Her work explores novel synthesis methods, including mechanical alloying and sol-gel auto-combustion, to develop new materials with superior thermal, magnetic, and electrical properties. Dr. Sahu has extensively studied the microstructural and magnetic behaviors of multi-component alloys, investigating the influence of elements like Si and Mn on phase evolution and magnetic properties. She also focuses on thermodynamic modeling using Redlich-Kister formalism and Miedema’s semi-empirical models for predicting phase formations in these alloys. Her research aims to apply theoretical models to experimental data for better material characterization, especially in high-entropy amorphous alloys. Dr. Sahu’s work is highly interdisciplinary, impacting fields like nanotechnology, metallurgy, and condensed matter physics.

Award and Recognition

Dr. Priyanka Sahu has received numerous accolades throughout her academic and professional career. She was awarded the prestigious “Best Researcher Award” at the 16th edition of International Research Awards in Atomic, Molecular, and Optical Physics in 2024. Her outstanding oral presentation in the “Progress in Metallurgy & Materials (ISPMM-2023)” at IIT Indore earned her a Best Oral Presentation award. Additionally, she secured the 1st runner-up spot in poster presentation during the Research and Industrial Conclave (RIC-2023) at IIT Indore. Dr. Sahu has also received multiple honorariums for her contributions to various programs such as the QIP program at IIT Indore and TEQIP-III in 2018. She was recognized for her early academic excellence with a merit scholarship at Government Polytechnic College Ambikapur, and she ranked 1st in class during her diploma years. These honors reflect her commitment to research and academia.

Publication Top Notes:

  • Synthesis and characterization of hydrogenated novel AlCrFeMnNiW high entropy alloy
    ✍️ SK Dewangan, VK Sharma, P Sahu, V Kumar
    📘 International Journal of Hydrogen Energy, 45(34), 16984-16991, 2020, cited 62 times
  • Investigating the effect of multiple grain–grain interfaces on electric and magnetic properties of [50 wt% BaFe12O19–50 wt% Na0.5Bi0.5TiO3] composite system
    ✍️ R Pattanayak, R Muduli, RK Panda, T Dash, P Sahu, S Raut, S Panigrahi
    📘 Physica B: Condensed Matter, 485, 67-77, 2016, cited 42 times
  • Microstructure and magnetic behavior of FeCoNi (Mn–Si) x (x= 0.5, 0.75, 1.0) high-entropy alloys
    ✍️ P Sahu, S Solanki, S Dewangan, V Kumar
    📘 Journal of Materials Research, 34(5), 829-840, 2019, cited 30 times
  • Dielectric, ferroelectric and impedance spectroscopic studies in TiO2-doped AgNbO3 ceramic
    ✍️ R Muduli, R Pattanayak, S Raut, P Sahu, V Senthil, S Rath, P Kumar, …
    📘 Journal of Alloys and Compounds, 664, 715-725, 2016, cited 21 times
  • Effect of grain size on electric transport and magnetic behavior of strontium hexaferrite (SrFe12O19)
    ✍️ P Sahu, SN Tripathy, R Pattanayak, R Muduli, N Mohapatra, S Panigrahi
    📘 Applied Physics A, 123, 1-10, 2017, cited 15 times
  • Microstructural, magnetic, and geometrical thermodynamic investigation of FeCoNi (MnSi) x (0.0, 0.1, 0.25, 0.5, 0.75, 1.0) high entropy alloys
    ✍️ P Sahu, S Samal, V Kumar
    📘 Materialia, 18, 101133, 2021, cited 7 times
  • Impact of Si and Mg on Microstructural and Magnetic Behavior of Fe-Co-Ni (Mg-Si)x (x = 0.00,0.1,0.2) Multicomponent Alloys
    ✍️ P Sahu, AS Bagri, MD Anoop, M Kumar, V Kumar
    📘 Silicon, 12, 893-902, 2020, cited 7 times
  • Microstructural, magnetic, and geometrical thermodynamic investigation of FeCoNi (MnSi) x (0.0, 0.1, 0.25, 0.5, 0.75, 1.0) high entropy alloys
    ✍️ P Sahu, S Samal, V Kumar
    📘 Materialia, 18, 101133, Patent NO
  • Microstructure, Non-isothermal Crystallization Kinetics and Magnetic Behaviour Study of [FeCoNi100-x(SiMn)x] High Entropy Amorphous Alloys Synthesized by …
    ✍️ P Sahu, S Samal, V Kumar
    📘 Metals and Materials International, 29(9), 2684-2709, 2023, cited 3 times
  • Phase Evolution and Soft Magnetic Behavior of Mechanically Alloyed Fe–Co–Ni Medium Entropy Alloy at Different Disk Angular Velocity
    ✍️ P Sahu, S Samal, V Kumar
    📘 Transactions of the Indian Institute of Metals, 76(11), 3065-3078, 2023, cited 2 times
  • Investigation of the structural, electrical, and magnetic behavior of Co3+-Ti4+ doped strontium hexaferrite: validation of measured and theoretical models
    ✍️ P Sahu, PK Sahu, S Panigrahi
    📘 Journal of Materials Science: Materials in Electronics, 35(10), 709, 2024, cited 1 time
  • Influence of Si and Mn on the Phase Formation, Crystallization Kinetics, and Enhanced Magnetic Properties of Mechanically Alloyed NiCoFe(SiMn)x High Entropy …
    ✍️ P Sahu, S Samal, V Kumar
    📘 Silicon, 15(12), 5367-5392, 2023, cited 1 time
  • An assessment of the mechanically alloyed equiatomic FeCoNiMnSi high entropy amorphous alloy for non-isothermal crystallization kinetics and magnetocaloric refrigeration …
    ✍️ P Sahu, S Samal, V Kumar
    📘 Materials Characterization, 216, 114269, 2024

Conclusion

Overall, Dr. Priyanka Sahu is a well-rounded researcher with a solid background in materials science, excellent technical skills, a significant publication record, and previous awards. Her contributions to the field of high entropy alloys and magnetocaloric materials are impressive and impactful. While focusing on securing research funding and pursuing interdisciplinary research could enhance her profile further, she is undoubtedly a deserving candidate for the “Best Researcher Award.”