Pacific Northwest National Laboratory
Tim Johnson is a research scientist at the Pacific Northwest National Laboratory. He has BS degrees in geophysics and civil engineering, and a PhD in Geophysics from Boise State University. His expertise is in computational geophysics applied to subsurface characterization 4D time-lapse imaging applications. He has been working for the last 12 years developing an advanced high performance electrical imaging code (E4D) which has been used extensively on the Hanford Site and several contaminated DoD sites.