The
High-
Energy
Radiation
Megavolt
Electron
Source (HERMES) III accelerator is the world's most powerful gamma simulator, producing 13 TW of power in a 19-MeV, 700-kA, 28-ns electron beam. HERMES uses technology developed by Pulse Sciences, Inc. and Sandia National Laboratories in the joint Defense Special Weapons Agency/Department of Energy Linear Induction Accelerator program, and can provide eight shots per day, four days per week. HERMES III has both indoor and outdoor test cells, and is used primarily for simulating the effects of prompt radiation from a nuclear burst on electronics and complete military systems. The accelerator is housed in Sandia's Simulation Technology Laboratory.