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Radioactivity Group, Staff Directory


Name Position Phone
Bergeron, Denis Chemist 301-975-2282
Cessna, Jeffrey Physicist 301-975-5539
Chen-Mayer, Heather Physicist 301-975-5595
Collé, Ronald Chemist 301-975-6149
Essex, RichardPhysical Scientist301-975-5541
Fitzgerald, Ryan Physicist 301-975-5597
King, Lynne Physical Scientist 301-975-5544
LaRosa, Jerome Chemist 301-975-8333
Laureano-Pérez, Lizbeth Chemical Engineer 301-975-8797
Lucas, Larry Chemist 301-975-5533
Mann, JacquelinePhysical Scientist301-975-4472
Norman, Bruce Physical Scientist 301-975-5693
Nour, Svetlana Research Chemist 301-975-4927
Payne, Jody Group Secretary 301-975-5530
Pibida, Leticia Physicist 301-975-5538
Sallaska, Anne Physicist 301-975-8464
Stann, Janet Physical Science Technician 301-975-5546
Tyra, Mark Physical Scientist 301-975-5054
Unterweger, Michael
Supervisory Physicist/Group Leader
Zimmerman, Brian Physicist 301-975-4338



Name Position Phone
Golas, Daniel Guest Researcher 301-975-5564
Regits, Willie Guest Researcher 301-975-5540
Neal, Khyra Guest Researcher 301-975-5255
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Secondary Standard for Ge 68 zimmerman

Photograph by: Brian Zimmerman

Physical Measurement Laboratory
Radiation Physics Division

Radioactivity Group

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