We introduce a compact design for an electronic device capable of superposing 8 bias voltages up to ±96~V on a voltage of up to 5~kV. Such a device has been implemented to provide biasing of a beam steerer-shifter system for use in aligning an ion beam with the optical axis of a multi-reflection time-of-flight mass spectrograph. The device features a 16-bit digital interface both to set and to monitor the applied voltages, and can be built for less than $500~USD. By selection of higher isolation components, the design concept can be extended to allow operation up to 20~kV.
@article{arxiv.1904.09726,
title = {An inexpensive biasing system for use in electrostatic steering of ions},
author = {P. Schury},
journal= {arXiv preprint arXiv:1904.09726},
year = {2026}
}