Xiangdong Wei Xiangdong Wei graduated from Peking University with a B.S. in astrophysics in 1982. After teaching physics briefly in China, he attended Syracuse University (SU) in 1988 and earned a Ph.D. in Polarized Target Physics in 1994. His early research focused on polarized HD and D2 targets for Inertial Confined Fusion (ICF) and for nuclear physics measurements with photon beams. After developing the polarized HD target for use at the Laser-Electron-Gamma-Source (LEGS) at Brookhaven National Lab (BNL) as a Postdoctoral Fellow at SU, he joined BNL as an Assistant Physicist in 1998 and was subsequently promoted to Associate Physicist in 2000 and Physicist in 2003. In 2008, he came to Jefferson Lab as a Staff Scientist in Hall B, and later became the deputy leader of the HD-Ice group. He has been a leading figure in the polarized HD target research, both for SPHICE at BNL and HD-Ice at JLab, and has mentored junior physicists, postdoctoral associates, graduate students, and high school students, in low temperature polarized target-related research and operation. He designed and optimized most equipment for the SPHICE and HD-Ice programs. Currently, he focuses on polarized LiD and LiH targets. Besides nuclear physics, his research interests include spin-polarized magnetically confined fusion and ICF. He leads a team to study polarized fuels for mounting a polarized fusion experiment at the DIII-D tokamak facility. He has 35 years of experience on cryogenic systems (especially milli-Kelvin dilution refrigerators with high magnetic field), NMR spectrometry, superconducting magnets, and polarization of solid HD and D2. He has authored over 130 scientific papers. He has served on DOE experiment-review committee and the facility User Board, and on proposal review panels for the German Research Association (DFG), as well as on JLab Experiment Readiness Review panels. Current Responsibilities in Hall B: Contact person for all Hall B polarized target experiments. Responsible for the target equipment. Liaison to the JLab Target Group for supporting Hall B targets in operation or in preparation (existing longitudinal polarized targets, new liquid hydrogen target, future polarized targets such as tritium, lithium-hydride, lithium-deuteride, 3He, and transversely polarized targets). Target expert to support the CLAS12 luminosity upgrade project.