1. Nuclear Engineering Department, University of California, Berkeley, CA, USA
2. Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
3. J. Crayton Pruitt Family Department of Biomedical Engineering, Herbert Wertheim College of Engineering, University of Florida, Gainesville, FL, USA
4. Nuclear and Radiological Engineering and Medical Physics Programs, George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, USA
5. Oak Ridge Associated Universities, Oak Ridge, TN, USA
6. Nuclear Nonproliferation Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
7. Departments of Radiation Oncology, Radiology, and Cell and Molecular Biology, Robert H. Lurie Comprehensive Cancer Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
8. Department of Radiation Oncology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA, USA