Minimum of twelve (12) years of progressively responsible experience in accelerator science, accelerator engineering, or operation of complex scientific facilities, including at least eight (8) years of leadership, management, and supervisory experience within a Department of Energy laboratory, major scientific user facility, or equivalent research or technical organization. Internationally recognized accomplishments in accelerator physics, accelerator engineering, accelerator operations, or a closely related discipline, as evidenced by scientific publications, technical achievements, invited presentations, professional recognition, and leadership within the accelerator community.