Splinternet Holdings [SLNH] says that its Defentect gamma radiation detection network is participating this week at the Golden Phoenix real world disaster response laboratory training exercise that is led by the Customs and Border Protection, the County, and City of San Diego, and the Marine Corps. Operation Golden Phoenix is focusing on simulated bio-weapon and dirty bomb attacks in the Southern California region. Defentect is an unattended gamma radiation detection network that integrates data from a wide-area grid of sensor to an incident command center. When high-energy gamma rays from dirty bomb components interact with Gammatect Plus sensors, Defentect analyzes the data and alerts authorities to radiation that may pose a security threat. Epsilon Systems Solutions is the systems integrator for the exercise and other participating firms include Polimatrix, TW Mobile Engineering, Moog's [MOG] QuickSet International, Global Mesh Technologies, SightLogix, URS and Orsus.