SANDIA REPORT SAND2003-1731 Unlimited Release Printed May 2003 Effect of Dielectric Photoemission on Surface Breakdown: An LDRD Report Roy E. Jorgenson, Larry K. Warne, Andreas A. Neuber, John Krile, James Dickens and Hermann G. Krompholz Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and Livermore, California 94550 Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy’s National Nuclear Security Administration under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited.