CIQTEK Sponsored Excellent Oral Presentation Award at the 12th Asia-Pacific EPR Symposium (APES2022)

The Excellent Oral Presentation Awards are presented during the closing ceremony of the 12th Asia-Pacific EPR Symposium (APES2022) on November 7th, 2022. CIQTEK is pleased to sponsor this award to scientists who have contributed significantly to electron paramagnetic resonance (EPR or ESR) research. This time, congratulations to Dr. Shen Zhou from the National University of Defense Technology, Dr. Sergey Veber from the International Tomography Center of SB RAS, and Dr. Zhiyuan Zhao from the University of Science and Technology of China for winning the awards.


APES 2022, Webinar, November 4-7, 2022

CIQTEK is happy to sponsor the APES 2022 during November 4-7, 2022. The symposium this year is an online event for international speakers and participants, a new start for Asia-Pacific EPR/ESR Society in the post-epidemic era. The main aims of APES 2022 are to bring together EPR/ESR spectroscopists and to promote and facilitate collaboration among the EPR/ESR community. APES 2022 is intended to stimulate discussions on the forefront of research in all aspects of EPR/ESR ranging from theoretical and experimental advances in CW/Pulsed EPR, high frequency, and high field EPR, ENDOR, PEDLOR/DEER, time-resolved EPR, FMR, MRI, ODMR to applications in medicine, biology, chemistry, materials science and nanotechnology.

On November 6, Dr. Sergey Veber gave a presentation entitled "X-band EPR spectrometer based on MW bridge with 300 W solid-state amplifier and AWG unit".

Abstract of the Presentation
Technical advances in modern EPR spectrometers set up the frontiers of EPR-related methodologies and approaches. Considering EPR spectrometers of conventional microwave bands, such as X- and Q-, high-power amplifiers, arbitrary wave generators, and fast digitizers are the essential units required for up-to-date pulse EPR techniques.
Herein we describe an X-band EPR spectrometer constructed in the Magnetic Resonance Laboratory of Biomolecular Systems (NIOCH SB RAS) and featuring all the required equipment to perform state-of-art pulse EPR experiments. Among the general construction of the spectrometer, the scheme of the microwave bridge is considered in detail including a pulse-forming and pulse-monitoring unit, and a low-noise amplifier with a pulse protection circuit. A modular open-source software "Atomize" (https://github.com/Anatoly1010/Atomize) is used to control the spectrometer including AWG and fast digitizer cards featuring high-speed data streaming. A wideband dielectric EPR resonator was developed to fit the requirements for AWG experiments with chirp pulses. The spectrometer is designed to have a high dynamic range, low coherent noise and to capture the direct dimension efficiently. These capabilities were demonstrated with both rectangular and AWG pulse experiments. This work was supported by the Ministry of Science and Higher Education of the Russian Federation (grant 14.W03.31.0034)

Biography of Dr. Sergey Veber
Dr. Sergey Veber received his Ph.D. in 2009 in chemical physics from the International Tomography Center SB RAS (ITC). Since 2005, he collaborated with the Weizmann Institute of Science (Israel), the Free University of Berlin, the Max-Planck-Institute for Chemical Energy Conversion, and Helmholtz-Zentrum Berlin (Germany). He is head of the group of THz-induced processes, at the Laboratory of EPR spectroscopy in ITC, Novosibirsk. He is the author of more than 70 articles. In 2016 he received the Young Investigator Award of the International EPR (ESR) Society for “his considerable contribution to the investigation of novel thermo- and photoswitchable Cu(II)-based magnetoactive compounds by multifrequency EPR”. His research interests are EPR in studies of molecular magnets, phase transitions in magnetoactive compounds, and electronics engineering of EPR-related equipment. His current focus is the use of THz laser radiation applied to molecular magnets and spin qubits, where he is developing EPR-based experimental approaches at the Novosibirsk Free Electron Laser facility.