This Small Business Innovation Research Phase I project is to develop a secondary electron detector which can be co-axially mounted with a micro-focused ion beam. Backscattered neutral atoms (and ions) and secondary electrons will be analyzed to give a measure both of surface element location and identity. <br/><br/>This detector will enable unique types of secondary ion mass spectrometry. The electrons and negative backscattered ions can be energy and time analyzed to give a spatially resolved elemental image of the surface under examination. Beam damage is greatly reduced compared to secondary electron microscopy allowing its use on biological samples.<br/><br/>This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).