Document Type
Presentation - Poster - Presentation
Beam Chopping Control using Digital Pulse Generators
Department
Physics & Engineering
Date of Activity
3-15-2022
Abstract
In experimental measurements of statistical nature, signal must be extracted from background noise. This applies to the previous absolute cross section measurements of charge transfer [1] with the merged beams technique at the Oak Ridge National Laboratory Multicharged Ion Research Facility. Improvements to the chopping scheme is required to prepare for new high-resolution X-ray measurements from charge transfer between H and highly charged ions using merged beams. This is accomplished by chopping the two beams with pulses from a pair of digital pulse generators. Signal is measured with beam pulses in phase and merged while the background is measured with beam pulses out of phase and de-merged. Once the pulse generators are programmed, electronic counters are used to ensure there are an equal amount of merged and de-merged pulses.
Research is supported by NASA Astrophysics Research and Analysis Grant No. NNH18ZDA001N.
Recommended Citation
Dovald, Arian; Suzuki, Timothy; Andrianarijaona, Vola M.; and Havener, Charles C., "Beam Chopping Control using Digital Pulse Generators" (2022). Achieve. 2099.
https://knowledge.e.southern.edu/achieve/2099