Leadership
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/Liang%2C-Liyan-cropped-website.jpg?itok=VGHTGZIw)
EMSL Director
509/371-7088
Dr. Liang leads EMSL in growing its reputation as a premier scientific user facility. She sets the scientific vision to attract outstanding staff scientists and users of EMSL facilities and programs...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/Harvey_Bolton.png?itok=CgwdluaC)
Deputy Director for EMSL
(509) 371-6958
Dr. Bolton leads and manages approximately 150 staff members and more than 100 instruments to ensure alignment with EMSL's science themes and BER's mission. He's responsible for expanding and...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/ljiljana_0.jpg?itok=TFUhKVug)
Lead Scientist for Mass Spectrometry
(509) 371-6585
Dr. Paša-Tolić builds user communities in EMSL’s science theme research areas and leads outreach to the Department of Energy’s Office of Biological and Environmental Research principal investigator...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/koppenaal_dw.jpg?itok=Q_mlrh68)
Chief Technology Officer
(509) 371-6549
Dr. Koppenaal directs the development and implementation of new, transformational instrumental tools for EMSL. He also serves as the technical lead for EMSL’s high resolution and mass accuracy...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/law_tj.jpg?itok=gU09s7hG)
Manager, User Support Services
(509) 371-6201
Law is responsible for the integrated user program supporting EMSL’s vision and mission, including policies, procedures, user feedback and reporting metrics. She collaborates with other facility...
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Communication lead
509-371-6116
Bruce oversees internal and external communication for EMSL's strategic outreach to its users and the greater scientific community, sponsors and other stakeholders. She leads the communication...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/john_shilling.jpg?itok=ttj7xJ5a)
Science Theme Lead, Atmospheric Aerosol Systems
Dr. Shilling is an atmospheric chemist at PNNL with expertise in measuring aerosol gas- and particle-phase chemical composition and gas/particle interactions, and in applying mass spectrometry to...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/baker.jpg?itok=h_rDjQ5k)
Science Theme Lead, Biosystem Dynamics & Design
(509) 372-4759
Dr. Baker is the science theme lead for Biosystem Dynamics and Design, which focuses on spatial and temporal dynamics of biological pathways in microbes, fungi and plants to advance our...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/DonBaer.jpg?itok=0-3gMTGq)
Science Theme Lead, Molecular Transformations
(509) 371-6245
Dr. Baer is EMSL's science theme lead for Molecular Transformations. As lead he implements the vision for development and implementation of scientific leadership within that area of emphasis,...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/untitled%20shoot-7742-39.jpg?itok=CcIMNe7O)
Science Theme Lead, Terrestrial & Subsurface Ecosystems
(509) 371-6385
Dr. Hess leads development and implementation of a vision for Terrestrial and Subsurface Ecosystem science within EMSL. She identifies specific objectives/targets and guides the assembly of the...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/scheibe_td.jpg?itok=HXeQ6kk3)
Lead Scientist, Multiscale Modeling & High-Performance Computing
(509) 371-7633
Dr. Scheibe is lead scientist for multiscale modeling and high-performance computing. He develops the scientific vision for multiscale and computational science within EMSL, provides a national...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/christer.jpg?itok=9Rfep0FT)
Director, Plant Sciences
509/371-6516
Dr. Jansson leads development of a vision and strategy for PNNL and EMSL in plant sciences and bioenergy, building on existing capabilities in plants, cyanobacteria and enzymatic approaches. These...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/wiley_steven_d3k397.png?itok=x1v0JM2R)
Lead Scientist, Systems Biology
(509) 371-6551
Dr. Wiley combines the techniques of molecular and cellular biology with both biochemical and optical assays. The results are used to build computer models of underlying cellular processes. He is...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/untitled%20shoot-0195-18.jpg?itok=UDM-Dghe)
Lead, Instrument Development Lab
(509) 371-6525
Dr. Kelly is the capability lead and manager for EMSL’s instrument development and microfabrication laboratories. His research focuses on biochemical analysis, including the development of...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/kirsten_h2.jpg?itok=r4h4gxUN)
Lead Scientist for Integrative Research
509-371-6444
Dr. Hofmockel is interested how plant-microbe-soil interactions influence plant productivity, soil biogeochemistry and the land-atmosphere exchange of carbon. This research connects microbial...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/orr_g.jpg?itok=KNfj-QbV)
Capability Lead, Cell Isolation and Systems Analysis
(509) 371-6127
Dr. Orr is the capability lead for the cell isolation and systems analysis (CISA), where she leads the team in the development and applications of capabilities for biological research at the...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/bowden_me.jpg?itok=z2YKGWkB)
Capability Lead, Deposition and Microfabrication and Subsurface Flow and Transport
(509) 371-7816
Dr. Bowden manages EMSL's optical spectroscopy and diffraction, subsurface flow and transport, and microfabrication and deposition capabilities. He is responsible for the X-ray diffraction facility...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/lipton_0.jpg?itok=zoykl-L8)
Capability lead, Mass Spectrometry
Dr. Lipton is EMSL's mass spectrometry capability lead. She is also a senior staff scientist at Pacific Northwest National Laboratory.
She is nationally recognized for her research in microbial...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/Stahl.jpg?itok=-xhlP3le)
EMSL Chief Scientist for Microbiology
Dr. Stahl is EMSL's chief scientist for microbiology, with a focus on conducting science using EMSL capabilities. He will also help attract new users to EMSL, and support EMSL's and the Pacific...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/Lea_Scott_3J427_orig.jpg?itok=LAVrUxOg)
Capability Lead, Microscopy
(509) 371-6233
Dr. Lea provides scientific and technical expertise and leadership in support of EMSL’s user program, strategy and scientific productivity through leadership of microscopy capability and Quiet Wing...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/mccue_lee_ann.png?itok=plung8Wx)
Capability lead for Molecular Science Computing Scientific Consulting
509/371-6955
Dr. McCue is the capability lead for EMSL’s molecular science computing scientific consulting. She collaborates with EMSL users to ensure integration between experimental and computational resources...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/nancy1_0.jpg?itok=YZjlwgfl)
Capability Lead & TGM, NMR/EPR
(509) 371-7094
Dr. Washton is the capability lead for NMR and EPR, and provides scientific and technical expertise and leadership in support of EMSL’s user program, strategy and scientific productivity. Washton...
![](https://webarchive.library.unt.edu/web/20161224192615im_/https://www.emsl.pnnl.gov/emslweb/sites/default/files/styles/thumbnail/public/user-photos/untitled%20shoot-0226-25.jpg?itok=Ui8ujSTP)
Capability Lead, High-performance Software Development
(509) 371-6464
Dr. Kowalski leads development of the parallel implementations of high-accuracy CC methodologies in NWChem, using the capabilities of Tensor Contraction Engine developed at PNNL. Developed coupled...