mike Heffner

Deputy Group Leader, Nuclear & Particle Physics
Nuclear and Chemical Sciences Division
Email: mheffner@llnl.gov
Phone: +19254226762


  • Ph.D., Nuclear Physics, University of California, Davis, 2000
  • M.S., Physics, University of California, Davis, 1996
  • B.S., Mechanical Engineering, Purdue University, 1995


Mike Heffner is currently the project director for the proposed nEXO experiment that aims to make the most sensitive measurement of neutrinoless double beta decay, a top priority for the nuclear and particle physics communities. Mike also led the fission TPC project, the first time projection chamber designed to make neutron induced fission cross section measurements.