1. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, United States
2. Bredesen Center, University of Tennessee, Knoxville, Tennessee 37996-3394, United States
3. U.S. Department of Energy, 19901 Germantown Road, Germantown, Maryland 20874, United States
4. Chevron, The Woodlands, Texas 77830, United States
5. Physical Measurements Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, United States
6. Indianapolis Metropolitan High School, 1635 West Michigan Street, Indianapolis, Indiana 46222, United States
7. Department of Earth and Planetary Science, University of Tennessee, Knoxville, Tennessee 37996-1526, United States
8. University of Chicago, Geophysical Sciences, 9700 South Cass Avenue, Building 434-A, Argonne, Illinois 60439, United States
9. Advanced Research Systems, 7476 Industrial Park Way, Macungie, Pennsylvania 18062, United States