The document summarizes the SLAC T-506 experiment which aims to test different active detection materials for radiation hardness at the proposed International Linear Collider. The experiment will irradiate samples such as GaAs, CVD diamond, silicon, and sapphire using 3.5-10.5 GeV electrons at a rate of up to 10 Hz. Monte Carlo simulations model the electromagnetic showers and dose rates. The characterization of samples before and after irradiation and annealing will provide insights into charge collection efficiency and material selection for ILC detectors.