Control of and Data Acquisition from a Torodial Electrostatic Analyzer

Abstract

<p>We have written LabView programs for use with a Toroid Electrosttic Analyzer. The first program was created to control the high input voltage. The input voltage (25,OOOV-30,OOV) is applied to the deflection plates inside the electrostatic analyzer, which will correctly pass the desired energy of an ion beam for data collection. The LabView voltage control program allows the user to have complete control of the input voltage due to a series of loops which increases the voltage in small increments, not allowing any radical voltage jumps which will endanger the power supply and the experiment. Once the high voltage has reached its limit, the program allows the user to initiate a countdown sequence which decreases the voltage, in small increments, until the voltage supply has reached its initial state of zero volts. The second program collects the data that is produced. This program also stores the data and produces both energy and scattering angle histogram. Both programs have been tested using low power test equipment and produce expected results. Due to high radiation of the high voltage supply, it is necessary to have both programs under remote user control. Remaining work includes the connection of the two programs to high voltage supplies and signal shaping electrons.</p><p>This presentation occurred at the Wright State University Campus-Wide Celebration of Research, Scholarship and Creative Activities on April 16, 2010</p>