Halcyonics Duo 73 has been engineered as a modular system to meet the needs of the most diverse applications. Duo 73 systems can be used in conjunction with steel honeycomb-structured table tops, and, using the available adapter plates, can alternatively be installed directly below the frame of many SEMs (e.g., Carl Zeiss Supra). The basic configuration of the Duo 73 consists of two elements; combinations of 3, 4 or more elements can be readily implemented.