On February 7, 2022, John T. Wilkinson successfully defended his Ph.D. thesis entitled “Novel Nuclear Reactions for Medical and Environmental Applications” advised by Professor Graham Peaslee.  In his 4.5 years at the NSL as a graduate student in the Peaslee group, John was a very productive research scientist. He co-authored 11 publications, with another one submitted and two more in preparation.  He was lead author on 3 of these publications. He was instrumental in developing the 9S accelerator facility and getting it operating, and his thesis work involved running experiments on the 9S, the tandem FN, the K150 cyclotron at Texas A&M, and even a medical cyclotron in Uppsala Sweden (shown below).  He was also trained on the 5U and assisted experiments on all three accelerators at the NSL.  He has accepted a post-doctoral position starting in March at the Center for Accelerator Mass Spectrometry at Lawrence Livermore National Laboratory. Congratulations, John!