Work with thought leaders and academic experts from Tokyo University of Science

I am a dedicated Physicist with a strong background in theoretical and experimental physics, specializing in areas such as quantum mechanics, particle physics, and low temperature physics. Demonstrated ability to conduct complex research, analyze data, and draw accurate conclusions. Skilled in mathematical modeling, computer simulations, and problem-solving. Experienced in collaborating with multidisciplinary teams to achieve research goals and contribute to scientific advancements. Seeking to leverage my expertise and passion for physics to make significant contributions to innovative projects and further expand knowledge in the field. There are my latest achievements: ·        **Designed a vertical septum magnet for the APS-U** I intruded a novel concept to cancel the leakage field of a vertical septum magnet and designed the DC septum magnet for the Advanced Photon Source Upgrade (APS-U) project. We have built the septum magnet and measured its field and found that the septum magnet cancels any leakage field. ·        **I introduced an advanced design structure to the hybrid permanent magnet (HPPM) undulators for the APS-U** I introduced some design skill sets for optimizing the field roll-off, increasing the field, and minimizing the demagnetization field, allowing the narrowing down of the pole width to reduce the magnetic force of HPPM undulators. With the design skill sets, all the HPPM undulators below that I designed for the APS-U have an advanced compact design structure which improves its performance and reduces the material cost of the HPPM undulators by 30%. ·        **Designed APU-U 28-mm period undulator** I designed a 28 mm period HPPM undulator for the APS-U with an advanced compact structure that provides an effective field of 8308 G at a gap of 8.5 mm with a reduced magnetic force of 30%. The measured effective field at the same gap was 9750 G, 4% higher than the design. The devices were either easy to tune or did not need to tune due to the reduced force structure of the design. Also, the measured phase error was 2-3 deg between the open and closed gaps, the smallest phase error measured at the APS. ·        **Designed APU-U 25-mm period undulator.** I designed a 25 mm period HPPM undulator for the APS-U with an advanced compact structure that provides an effective field of 8308 G at a gap of 8.5 mm with a reduced magnetic force of 30%. The measured effective field at the same gap was 8600 G, 4% higher than the design. The devices were either easy to tune or did not need to tune due to the reduced force structure of the design. Also, the measured phase error was 2-3 deg between the open and closed gaps. ·        **Designed APU-U 21-mm period undulator.** I designed a 21 mm period HPPM undulator for the APS-U with an advanced compact structure that provides an effective field of 6674 G at a gap of 8.5 mm with a reduced magnetic force of 30%. The measured effective field at the same gap was 7150 G, 7% higher than the design. The devices were either easy to tune or did not need to tune due to the reduced force structure of the design. Also, the measured phase error was 2-3 deg between the open and closed gaps. ·        **Designed APU-U 13.5-mm period undulator.** I designed a 13.5 mm period HPPM undulator for the APS-U with an advanced compact structure that provides an effective field of 3105 G at a gap of 8.5 mm with a reduced magnetic force of 30%. The measured effective field at the same gap was 3172 G, 2% higher than the design. The devices were either easy to tune or did not need to tune due to the reduced force structure of the design. Also, the measured phase error was 2-3 deg between the open and closed gaps. ·        **Designed APS 14-mm period undulator.** Designed a 14 mm period HPPM undulator for the dynamic compression sector of the current APS, with an advanced compact structure that provides an effective field of 3,364 G at a gap of 8.5 mm with a reduced magnetic force of 30%. The measured effective field at the same gap was 3504 G, 4% higher than the design. Also, the measured phase error was 0.5 - 1 deg between the open and closed gaps.

Dr. Jianqiang Yu earned his PhD degree from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, in 2000. Following this, he pursued postdoctoral research at the University of Tokyo from October 2001 to February 2003. Subsequently, he served as a postdoctoral research assistant at the Central Research Institute of ExxonMobil (Japan) for one year. From April 2004 to July 2006, he held the position of senior researcher at the Japan Agency for Science and Technology (JST) at Tokyo University of Sciences. Dr. Yu then assumed the role of distinguished professor at Qingdao University, China. In December 2011 to February 2012, he engaged in a visiting professorship at the Chinese University of Hong Kong. Since 2008, he has served as a Senior Visiting Professor at the Institute of Oceanography, Chinese Academy of Sciences, establishing a globally recognized photoelectrochemical anticorrosion R&D team. In 2012, he took on the role of project leader at the Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, where he established the Laboratory of Clean Energy Materials and Chemistry. In May 2022, Dr. Yu became a permanent resident of the United States through the American Alien of Extraordinary Ability (EB-1A) program. Throughout his career, Dr. Yu has been dedicated to addressing scientific and technical challenges in energy conversion, environmental protection, and fine chemical synthesis. His contributions include innovative advancements in material chemical preparation processes, the development of new catalytic materials, and research in heterogeneous catalytic engineering. Notably, he has made significant breakthroughs in the application of photocatalytic materials, particularly in solar energy conversion and green catalytic processes, and has conducted pioneering work in photoelectrochemical marine anti-corrosion and anti-fouling.