Ion beam homogenization techniques for a high-energy single event effects facility

Single event effects (SEE) testing of integrated circuits is essential for space applications. New high-energy ion beam user facilities – with a wide range of available ion species – are required to meet the growing demand. It is important to irradiate specified areas of a target with a repeatably uniform dose. An approximately uniform ion flux can be achieved over arbitrary rectangular domains by rastering the Gaussian beam in two dimensions. An alternative approach is to use nonlinear optics – typically placing two octupole magnets (optionally with duodecapole field components) in the beamline. We present a systematic comparison of these two approaches, including novel combinations of both, for a proposed irradiation facility [1]. Considerations regarding AI/ML for automation, safety and control will be described.

[1] The High Energy Effects Test Facility (HEET), https://www.bnl.gov/heet/