Phys. Rev. ST Accel. Beams 11, 120009 (2008) [4 pages]

Essay: Memories of a mentor and friend—Robert H. Siemann

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Gerald P. Jackson *
Hbar Technologies, LLC, 1275 W. Roosevelt Road, Suite 130, West Chicago, Illinois 60185, USA

Received 12 November 2008; published 12 December 2008

Bob Siemann was an ardent defender of the scientific method, demanding excellence from his students, peers, and himself. Given his uncommon interest in the education of the next generation of physicists, it is appropriate to remember his life through the eyes of one of his students, one who was proud to also call him a friend. There is no attempt in this retrospective to describe his technical contributions. Instead, the goal is to describe a teacher, colleague, and friend who will be missed.


©2008 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevSTAB.11.120009
DOI: 10.1103/PhysRevSTAB.11.120009
PACS: 01.60.+q

* Gerald Jackson is cofounder and president of Hbar Technologies, LLC. He earned B. S. degrees with honors in physics and astronomy at the University of Michigan in 1981 and a Ph. D. in physics from Cornell University in 1987. During his 14 years at Fermilab he had been instrumentation department head, leader of Main Ring operations, Recycler ring construction project manager, and leader of many accelerator technology development projects. During the demise of the SSC, he and others began a grass-roots push to aggressively upgrade the Tevatron luminosity. At the core of this upgrade was the conception, accelerator R&D, construction, and commissioning of the permanent magnet “Recycler” storage ring. Sold as a means of increasing the luminosity of the Tevatron Collider from 80× to 200× the original design luminosity, the accelerator complex is currently operating at 300× and rising. He was corecipient of the 1999 IEEE Accelerator Technology Award for the development of permanent magnets for storage rings, and is a fellow of the American Physical Society. In 2000 he left Fermilab to enter the private sector, with the goal of developing commercial markets for antimatter produced at Fermilab. To date, applications in homeland security, cancer therapy, PET isotope generation, deep-space propulsion, and nuclear testing have been identified. This antimatter work has appeared in many articles in the popular press, from Scientific American to the Washington Post.

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