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To: Radial Assist, LLC

Re: Radiation Scatter Survey of Radial Assist RAD BOARD by Alliance Medical Physics LLC

Enclosed please find the results of the radiation scatter survey conducted on the RAD BOARD on April 20, 2012. The RAD BOARD is an arm board utilized in cardiac catheterization and interventional labs for radial access. It has the added feature of being partially lined with a 15″ by 9″ layer of Xenolite TB for additional radiation scatter protection. Xenolite TB, which is a lead-free, super-lightweight 2-element composite equivalent to 0.35mm Pb protection, is embedded in the board under the company logo label. The survey was performed to quantify the ability of the RAD BOARD to reduce radiation scatter to the physician performing the vascular procedure.