Sept. 17, 2008

Kirk Joseph Bertsche

Address: 242 Ferrari Ave., San Jose, CA 95110-1413
Phone: (408) 452-0314 (home)

1975-1977 Wheaton College, Wheaton, IL.
1977-1979 Purdue University, West Lafayette, IN.
BS degree in Physics with Honors (1979).
1979-1980 Evening college, Johns Hopkins University, Baltimore, MD.
1980-1989 University of California, Berkeley.
MA degree in Physics (1982).
PhD degree in Physics (1989).
Summer 1991, 1993, 1994, 1995; Winter 1996 US Particle Accelerator School
Professional Experience

7/07-present - - Accelerator Physicist, Stanford Linear Accelerator Center, Menlo Park, CA.
Involved with tuning, operation, and improvement of RF systems for the PEP-II and LCLS accelerators.

6/00-7/07 - - Senior Research Scientist, KLA-Tencor, San Jose, CA.
R&D scientist for new SEM products, including novel detection schemes, lens geometries, and system architectures (e.g. REBL, a novel electron beam lithography project). Designed, assembled, and operated test stands, and characterized prototypes.
Systems engineer for current and next-generation scanning electron microscopes for use as a wafer inspection tools. Designed and simulated beam optics; defined detector system architecture; characterized system performance, debugged alpha builds.

8/96-6/00 - - Staff Microwave Engineer, Siemens Medical Solutions/Oncology Care Systems, Concord, CA.
Member of microwave/physics group. Designed new S-band standing wave electron accelerator structures and microwave circuitry for cancer therapy products. Designed various magnetic circuits. Interfaced with manufacturing and final testing to resolve problems. Documented, verified, and validated product changes and upgrades, per FDA regulations.

2/94-8/96 - - Research Associate, Fermi National Accelerator Laboratory, Batavia, IL.
Member of the accelerator division. Made critical contributions to design of magnet structures and electron cooling for the Recycler, a novel permanent magnet synchrotron.
Analyzed and improved microwave beam pickup and kicker systems. Improved design of stripline beam position monitors. Coordinated antiproton source operation for three months. Wrote control software (5k lines of C) to support tuning of accelerator.

2/93-1/94 - - Staff Scientist, Superconducting SuperCollider Laboratory, Dallas, TX.
Member of Project Management Organization, responsible for instrumentation, controls and correction algorithms for the MEB (Medium Energy Booster). Defined technical requirements and established locations for diagnostic instrumentation systems. Designed stripline beam position monitors for high vacuum environment, including broadband electrical impedance calculations, impedence matching and structural design. Specified user interfaces for computer control systems and algorithms for tuning beam and measuring beam emittance. Gave SSC educational lectures to community groups.

1990-1992 - - Post-doctoral Physicist, Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA.
Member of FN tandem accelerator mass spectrometry crew. Designed tandem and RFQ beam injection lines, including ion optical design, specification of electrical, mechanical and vacuum components, and cost estimation. Assisted with FN tandem accelerator operation and data collection. Interfaced with private industry for development of RFQ accelerator for mass spectrometry. Prepared samples and performed radiocarbon measurements for various archaeological collaborations. Collaborated with LBL researchers on re-design of cyclotrino.

1990 - - Physicist, CTI Cyclotron Systems, Berkeley, CA.
Involved in all parts of cyclotron design, concentrating on central region magnetics. Specified and measured magnetic field contours. Developed 3-D relaxation code for electrostatic calculations. Incorporated magnetic measurements and electrostatic field maps into in-house particle tracking code to study beam dynamics. Designed and built magnet current regulator and hall probe amplifiers.

1982-1989 - - Graduate Student Research Assistant, University of California, Berkeley, CA.
Designed and built small cyclotron ("cyclotrino") for use as a mass spectrometer at the Lawrence Berkeley Laboratory (1982-1989). Performed fundamental design of accelerator and ion optical system, design and fabrication of mechanical components, design and fabrication of electronic circuits for operation at low currents, RF frequencies, and high voltages, including design of high-stability servo-controlled power supplies.
Assisted with hardware for IR astronomical camera at the Space Sciences Laboratory (1982).

1980-1982 - - Teaching Assistant, Physics Department, University of California, Berkeley, CA.
Taught discussion sections and laboratories for elementary physics courses.

1979-1982 - - Associate Physicist, Applied Physics Laboratory of Johns Hopkins University, Laurel, MD.
Performed investigations into voltage contrast electron microscopy (1980-1982); worked on new computer design concepts for Navy Aegis system (1979-1980); participated in three-month Associate Staff Training Program, characterizing small-scale motion of a towed oceanographic platform (1979).

1976-1978 - - Technical Help, Magnavox Gov't & Industrial Electronics Co., Fort Wayne, IN. (Subsequently bought by Hughes Aircraft Co in 1995, then Raytheon in 1997. Sonobouy systems bought by Ultra Electronics in 1998.)
Assisted engineering staff with testing, assembly, and debugging of sonobouy systems.

Available on request.
Publications and Patents
Available on request.
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Last modified Sept. 17, 2008 by Kirk Bertsche,