Physics Laboratory National Institute of Standards and Technology 100 Bureau Drive, Stop 8400 Gaithersburg, MD 20899-8400 fax: 301-975-3038 Org #   Position   Name   Title   Phone Number   840   Director:   Katharine B. Gebbie   Director, Physics Laboratory 301-975-4201     Secretary to the Director:   Anita K. Sweigert   Secretary 301-975-4200     Deputy Director:   William R. Ott   Deputy Director, Physics Laboratory 301-975-4202     Secretary to the Deputy Director:   Kum Ham   Secretary 301-975-4203     Executive Officer:   Patrick M. Hovis   Supervisory Senior Management Advisor 301-975-4290     Manager:   Bert M. Coursey   Coordinated National Security Standards Program 301-975-5584     Administrative Officer:     Administrative Officer 847       Julia Bachinski   Administrative Officer 848 303-492-7786     Kristen Chapman   Administrative Officer 841 301-975-8211     Karen J. Combs   Administrative Officer 840/844 301-975-4210     Mary A. Dewese   Administrative Officer 846 301-975-6095     Suzanne Duvall   Administrative Officer 842 301-975-2802     Staff:   Aaron P. Fein   IT Security Officer 301-975-3719     Jonathan E. Hardis   Scientific Assistant 301-975-2373     Guest Researcher:   Alfons Weber   301-975-2377   840.02   Manager:   Robert A. Dragoset   Supervisory Physicist 301-975-3718     Secretary:   Kum Ham   301-975-4203     Staff:   Janet Bass   Computer Scientist 301-975-8425     Karen Olsen   Computer Scientist 301-975-3286     Guest Researcher:   Martin Weber   301-975-8228     Student:   Christopher Simundson   Physical Scientist Trainee 301-975-8228     Joshua Tsai   Student Volunteer 301-975-4625 Electron and Optical Physics Division Org #   Position   Name   Title   Phone Number   841   Division Chief:   Charles W. Clark   Chief, Electron & Optical Physics 301-975-3709     Division Secretary:   Helen R. Felrice   Secretary 301-975-3708     Staff:   Joshua Bienfang   Physicist 301-975-2105     William Reinhardt   Faculty Appointment 301-975-6953     Post Doc:   Ludwig Mathey   301-975-8351     Guest Researcher:   Roger Brown   301-975-4527     Mark Edwards   301-975-8821     J. William Gadzuk   Scientist Emeritus 301-975-2548     Jemellie Galang   301-975-2423     Mingdong Li   301-975-3748     Alessandro Restelli   301-975-5686     Marcos Rigol   301-975-5027     Daniel Rogers   301-975-5542     Indubala Satija   301-975-6374     Barry Schneider   301-975-4527     Jay Vaishnav   301-975-5297     Yong Sing You   301-975-8840   841.01   Group Leader:   Thomas B. Lucatorto   Supervisory Physicist 301-975-3734     Secretary:   Christina E. Brown   Secretary 301-975-3727     Staff:   Steven Grantham   Physicist 301-975-5528     Shannon Hill   Physicist 301-975-4283     Charles S. Tarrio   Physicist 301-975-3737     Robert E. Vest   Physicist 301-975-3992     Guest Researcher:   Nadir Faradzhev   301-975-3736     Rashi Garg   301-975-6953     Thomas McIlrath   301-975-8821   841.02   Group Leader:   Charles W. Clark   Acting Group Leader 301-975-3709     Secretary:   Christina E. Brown   Secretary 301-975-3727     Staff:   Uwe Arp   Physicist 301-975-3233     Lu Deng   Physicist 301-975-8348     Alex Farrell   Electronics Technician 301-975-8372     Mitchell L. Furst   Physicist 301-975-6378     Contractor:   Edward Hagley   301-975-6381     Guest Researcher:   Yaniv Barad   301-975-5027     Ke Li   301-975-5991 Atomic Physics Division Org #   Position   Name   Title   Phone Number   842   Division Chief:   Carl J. Williams   Chief, Atomic Physics 301-975-3531     Division Secretary:   Gail Newrock   Division Secretary 301-975-3200     Staff:   Peter J. Mohr   Manager, Fund. Constants Data Center 301-975-3217     Post Doc:   Layla Hormozi   301-975-6092     Contractor:   Jonathan Baker   Physicist 301-975-4254     Albert Henins   Physicist 301-975-4848     Guest Researcher:   Barry N. Taylor   Scientist Emeritus 301-975-4220   842.01   Group Leader:   John J. Curry   Group Leader 301-975-2817     Secretary:   Layla Armitage   Group Secretary 301-975-4839     Staff:   John D. Gillaspy   Physicist 301-975-3236     Rodrigo Ibacache   Information Specialist 301-975-4750     Gillian Nave   Physicist 301-975-4311     Joseph Reader   Physicist 301-975-3222     Craig J. Sansonetti   Physicist 301-975-3223     Joseph N. Tan   Physicist 301-975-8985     Amy Zimmermann   Phys. Sci. Trainee 301-975-5123     Post Doc:   Ilija Draganic   301-975-3212     Clayton Simien   301-975-5225     Contractor:   Merv Bridges   Physicist 301-975-3228     Jeffrey R. Fuhr   Physicist 301-975-3204     Alexander Kramida   301-975-8074     Larissa Podobedova   301-975-5832     Edward B. Saloman   301-975-5554     Jean E. Sansonetti   301-975-4725     Wolfgang L. Wiese   301-975-3201     Guest Researcher:   Mahamed A. Ali   301-975-5335     Samuel Brewer   301-975-3257     Charlotte Fischer   301-975-2099     Daniel E. Kelleher   301-975-3202     William C. Martin   Scientist Emeritus 301-975-3213     Yuri Ralchenko   301-975-5335     Philip M. Stone   301-975-3211     Glenn M. Wahlgren   301-975-4304     Student:   Benjamin Madison   301-975-2633     Luke Tedesco   301-975-   842.02   Group Leader:   Garnett W. Bryant   Group Leader 301-975-2595     Secretary:   Melissa Thomas   301-975-3206     Staff:   Eric C. Benck   Physicist 301-975-3697     John H. Burnett   Physicist 301-975-2679     Phil Johnson   Physicist 301-975-4850     Paul S. Julienne   NIST Fellow 301-975-2596     John Lawall   Physicist 301-975-3226     Terrell L. Moore   Electrical Technician 301-975-3229     Joshua M. Pomeroy   Physicist 301-975-5508     Glenn Solomon   Physicist 301-975-3225     Eite Tiesinga   Physicist 301-975-2284     Neil Zimmerman   Physicist 301-975-5887     Post Doc:   Akobuije Chijioke   301-975-5977     Paulina Kuo   301-975-4105     Contractor:   Deane Chandler-Horowitz   301-975-3131     Guest Researcher:   Ryan Artuso   301-975-8560     Wei Fang   301-975-5893     Edward Flagg   301-975-6660     Thomas Hanna   301-975-3582     Anzi Hu   301-975-5029     Menderes Iskin   301-975-5159     Natalia Malkova   301-975-3527     Carlos Sa de Melo   301-975-8586     Kaushik Mitra   301-975-8268     Andreas Muller   301-975-4433     Deepak Sridharan   301-975-3225     Ted Thorbeck   301-975-4270     Emily Townsend   301-975-2523     Student:   Marissa Galfond   301-975-5508     Greg Sambrana   301-975-5508   842.04   Group Leader:   William D. Phillips   Group Leader 301-975-6554     Administrative Staff:   Kimberly A. Emswiler   Information Specialist 301-975-4208     Gail Griffin-Ferris   Adminstrative Support Assistant 301-975-5112     Staff:   Kristian Helmerson   Physicist 301-975-4266     Paul D. Lett   Physicist 301-975-6559     James Porto   Physicist 301-975-3238     Ian Spielman   Physicist 301-975-8664     Post Doc:   Robert Compton   301-975-8244     Nathan Lundblad   Physicist 301-975-5913     Raphael Pooser   301-975-2353     Guest Researcher:   Radu Chicireanu   301-975-5231     Jeremy Clark   301-975-4413     Karina Jimenez-Garcia   301-975-8576     Kevin Jones   301-975-4414     Rani Kishore   Chemist 301-975-4880     Yu-Ju Lin   301-975-8569     Yingmei Liu   301-975-8571     Carlos Lopez-Mariscal   301-975-6867     Nathan Lundblad   301-975-5913     Alberto Marino   301-975-8885     Stephen Maxwell   301-975-4950     Sergio Muniz   301-975-4156     Abigail Perry   301-975-3566     Anand Ramanathan   301-975-6581     Neil Corzo Trejo   301-975-2576     Saijun Wu   301-975-6882     Student:   Brooke Cranswick-Hester   301-975-4360 Optical Technology Division Org #   Position   Name   Title   Phone Number   844   Division Chief:   Gerald T. Fraser   301-975-3797     Division Secretary:   Tina Pipes   301-975-2316     Administrative Staff:   R. Arvella Kuehl   Admin. Specialist 301-975-2165     Guest Researcher:   Albert C. Parr   301-975-2316     John C. Stephenson   301-975-2372   844.03   Group Leader:   Eric L. Shirley   301-975-2349     Secretary:   Robin Lee   301-975-2357     Staff:   David W. Allen   Research Chemist 301-975-3680     Charles E. Gibson   Physicist 301-975-2329     B. Carol Johnson   Physicist 301-975-2322     Zachary Levine   Physicist 301-975-5453     Maritoni Litorja   Research Chemist 301-975-8095     Alan L. Migdall   Physicist 301-975-2331     Benjamin K. Tsai   Physical Scientist 301-975-2347     Howard W. Yoon   Physicist 301-975-2482     Post Doc:   Keith Gilmore   301-975-8419     Aaron Pearlman   301-975-2342     Contractor:   Jingyun Fan   301-975-8112     Sergey Mekhontsev   301-975-8598     Robert Saunders   301-975-4712     Guest Researcher:   Yuri Baranov   301-975-8572     Jeffrey Burks   301-975-2357     Jun Chen   301-975-2000     Dennis Clark   301-975-2357     Ken Eckerle   301-975-2357     Michael Feinholz   301-975-2357     Stephanie Flora   301-975-2322     Joel B. Fowler   301-975-2341     Elizabeth Goldschmidt   301-975-5579     Milton Hom   301-975-2357     Jon T. Hougen   Scientist Emeritus 301-975-2379     Leon Iofin   301-975-2317     Marilyn E. Jacox   Scientist Emeritus 301-975-2547     Edward Van Keuren   301-975-2357     Vladimir Khromchenko   301-975-6506     Walter J. Lafferty   Scientist Emeritus 301-975-2375     Zhigang Li   301-975-3724     Alexander Ling   301-975-4493     Francis J. Lovas   301-975-2385     Lawrence Ong   301-975-2357     Sergey Polyakov   301-975-8473     Natalia Rutter   301-975-2000     Warren E. Thompson   301-975-2547     Christoph Wildfeuer   301-975-2331     Mark Yarbrough   301-975-2357     Student:   Brian Fanney   301-975-8361     Abra Fein   301-975-3442     Aaron Ho   301-975-2349   844.04   Group Leader:   Raju V. Datla   301-975-2131     Secretary:   Martin Wilson   301-975-2356     Staff:   Leonard M. Hanssen   Physicist 301-975-2344     Simon G. Kaplan   Physicist 301-975-2336     Joseph P. Rice   Physicist 301-975-2133     Solomon Woods   301-975-2382     Contractor:   Timothy M. Jung   301-975-2330     Steven R. Lorentz   301-975-2311     James E. Proctor   301-975-2668     Guest Researcher:   John Brady   301-975-2349     Adriaan Carter   301-975-4765     Enrique Iglesias   301-975-2000     Marie Juliano   301-975-6092     Mike Lin   301-975-5327     Greg Ly   301-975-2350     Jorge Neira   301-975-8094     Tomoya Ohno   301-975-3470     Alexander Prokhorov   301-975-8024     Corey Sears   301-975-2384     Dale Sears   301-975-2384     Richard Semer   301-975-2356     Robert Soulen   301-975-2357     Alfons Weber   301-975-2377     Boris Wilthan   301-975-4183     Clarence Zarobila   301-975-8976     Jinan Zeng   301-975-4473   844.05   Group Leader:   Yoshihiro Ohno   301-975-2321     Secretary:   Lorna Armiger   301-975-8138     Staff:   Wendy Davis   301-975-6963     George P. Eppeldauer   Electrical Engineer 301-975-2338     Jeanne M. Houston   Physicist 301-975-2327     Thomas C. Larason   Electrical Engineer 301-975-2334     C. Cameron Miller   Research Chemist 301-975-4713     Maria E. Nadal   Research Chemist 301-975-4632     Yuqin Zong   Electronics Engineer 301-975-2332     Contractor:   Rui Qi   301-975-6786     Guest Researcher:   James Bolton   301-975-3216     Tongsheng Mou   301-975-4159     Vyacheslav Podobedov   301-975-4253     Michaela Stefar   301-975-3216   844.06   Group Leader:   Keith Lykke   301-975-3216     Secretary:   Lorna Armiger   301-975-8138     Staff:   Steven W. Brown   Physicist 301-975-5167     Thomas A. Germer   Physicist 301-975-2876     Heather Patrick   301-975-4684     Allan Smith   Physicist 301-975-8536     John Woodward   Physicist 301-975-5495     Guest Researcher:   Brent Bergner   301-975-8585     Claire Cramer   301-975-8138     Akira Hamamatsu   301-975-6623     Colleen Jenkins   301 975-8269     Jessica Ramella-Roman   301 975-8138     William Sparks   301-975-8138     Chris Stubbs   301-975-8138 Ionizing Radiation Division Org #   Position   Name   Title   Phone Number   846   Division Chief:   Lisa R. Karam   Division Chief 301-975-5584     Division Secretary:   Wanda M. Lease   Secretary 301-975-5524     Staff:   Louis Costrell   Physicist 301-975-5608     Guest Researcher:   Randall S. Caswell   301-975-5525   846.02   Group Leader:   Stephen M. Seltzer   Supervisory Physicist 301-975-5552     Secretary:   Diana Copeland   Group Secretary 301-975-5575     Staff:   Fred B. Bateman   Physicist 301-975-5580     Paul M. Bergstrom   Physicist 301-975-5567     Frank Cerra   Physicist 301-975-8010     Heather H. Chen-Mayer   Physicist 301-975-5595     Sarenee L. Cooper   Physicist 301-975-5054     Marc F. Desrosiers   Research Chemist 301-975-5639     David Eardley   Electrical Technician 301-975-5621     Lawrence T. Hudson   Physicist 301-975-2537     Melvin R. McClelland   Electrical Technician 301-975-2237     Ronaldo Minniti   Physicist 301-975-5586     Michael Mitch   Physicist 301-975-5491     C. Michelle O'Brien   Physicist 301-975-2014     James M. Puhl   Physical Science Technician 301-975-5581     Christopher G. Soares   Physicist 301-975-5589     Ron Tosh   Physicist 301-975-5591     Research Associate:   Joseph W. Motz   301-975-5576     Guest Researcher:   Mohamad Al-Sheihkly   301-975-5564     Paul J. Lamperti   301-975-5591     William L. McLaughlin   Scientist Emeritus 301-975-5559     Julian H. Sparrow   Physicist 301-975-5578   846.03   Group Leader:   Muhammad Arif   Supervisory Physicist 301-975-6303     Secretary:   Martha Neviaser   Group Secretary 301-975-6200     Staff:   Maynard S. Dewey   Physicist 301-975-4843     Thomas R. Gentile   Physicist 301-975-5431     David M. Gilliam   Physicist 301-975-6206     Craig Heimbach   Physicist 301-975-8874     David L. Jacobson   Physicist 301-975-6207     Jeffrey S. Nico   Physicist 301-975-4663     Robert Shankle   Physicist 301-975-6185     Alan Keith Thompson   Physicist 301-975-4666     Contractor:   Charles M. Eisenhauer   301-975-6204     Sam Werner   301-975-5143     Guest Researcher:   Allan D. Carlson   301-975-5570     WangChun Chen   301-975-6222     John Doyle   301-975-5641     Robert Golub   301-975-5641     James A. Grundl   301-975-6201     Greg Hansen   301-975-8194     Mike Huber   301-975-5641     Dan Hussey   301-975-4927     Hans Mumm   301-975-4663     Roald A. Schrack   301-975-5569     Robert B. Schwartz   301-975-6203     William M. Snow   301-975-4664     Fred E. Wietfeldt   301-975-4398     Liang Yang   301-975-8870   846.04   Group Leader:   Michael P. Unterweger   Group Leader 301-975-5536     Secretary:   Cecelia Huestis-Beshai   Secretary 301-975-5530     Staff:   Douglas J. Alderson   Physical Science Technician 301-975-3232     Denis E. Bergeron   Research Chemist 301-975-2282     Jeffrey T. Cessna   Physicist 301-975-5539     Ronald Colle   Research Chemist 301-975-6149     Lonnie Cumberland   Physicist 301-975-6869     Ryan Fitzgerald   Physicist 301-975-5597     Michelle Hammond   Physical Scientist 301-975-5534     Kenneth G.W. Inn   Research Chemist 301-975-5541     Lynne King   Physical Science Technician 301-975-5544     Jerome LaRosa   Research Chemist 301-975-8333     Lizbeth Laureano-Perez   Chemical Engineer 301-975-8797     Larry L. Lucas   Research Chemist 301-975-5546     Bruce Norman   Physical Scientist 301-975-5693     Leticia Pibida   Physicist 301-975-5538     Janet Stann   Physical ScienceTechnician 301-975-5546     Peter Volkovitsky   Physicist 301-975-5527     Brian E. Zimmerman   Research Chemist 301-975-4338     Contractor:   J.M.R. Hutchinson   301-975-5543     Research Associate:   Balazs J. Bene   301-975-6768     Daniel B. Golas   301-975-5540     Svetlana Nour   301-975-4927 Time and Frequency Division Org #   Position   Name   Title   Phone Number   847   Division Chief:   Thomas O'Brian   Chief Time & Frequency 303-497-4570     Division Secretary:   Eyvon Petty   Secretary 303-497-3295     Administrative Staff:   Cherry Chavez   Administrative Assistant 303-497-3276     Camille Hoffman   Administrative Assistant 303-497-5398     Sue Jacobsen   Administrative Specialist 303-497-3986   847.10   Group Leader:   David J. Wineland   NIST Fellow 303-497-5286     Staff:   James C. Bergquist   NIST Fellow 303-497-5459     John J. Bollinger   Physicist 303-497-5861     Dietrich Leibfried   Physicist 303-497-7880     Till Rosenband   303-497-4293     Post Doc:   Sarah Bickman   303-497-4214     David Hanneke   303-497-4745     Michael Thorpe   303-497-7376     Aaron VanDevender   303-497-3348     Contractor:   Robert E. Drullinger   Physicist 303-497-3183     Guest Researcher:   Michael Biercuk   303-497-4213     Brad Blakestad   303-497-4578     Kenton Brown   303-497-4364     Chin-wen Chou   303-497-7470     Yves Colombe   303-497-3508     Jonathan Home   303-497-4446     David Hume   303-497-7415     Wayne M. Itano   Scientist Emeritus 303-497-5632     John Jost   303-497-3328     Christian Ospelkaus   303-497-4290     Hermann Uys   303-497-7950   847.40   Group Leader:   John P. Lowe   Electrical Engineer 303-497-5453     Staff:   Michael A. Lombardi   Computer Specialist 303-497-3212     Andrew Novick   Electronic Engineer 303-497-3378     Contractor:   D. Wayne Hanson   303-497-5233   847.40-ES   Jason Heidecker   303-497-3832   847.40-WWV   Engineer-in-Charge:   Matthew J. Deutch   Electrical Engineer 303-497-3914     Staff:   Glenn Nelson   Electronic Technician 303-497-3914     Douglas Sutton   Electronic Technician 303-497-3914     William Yates   Electronic Technician 303-497-3914   847.40-WWVH   Engineer-in-Charge:   Dean Okayama   Electrical Engineer 808-335-4361     Secretary:   Adelamae Ochinang   Secretary 808-335-4361     Staff:   Chris Fujita   Electronic Technician 808-335-4361     Dean Takamatsu   Electronic Technician 808-335-4361   847.50   Group Leader:   John P. Lowe   Electrical Engineer 303-497-5453     Staff:   James E. Gray   Electrical Engineer 303-497-3209     Tom Heavner   Physicist 303-497-5015     Steven Jefferts   Physicist 303-497-7377     Trudi K. Peppler   Computer Specialist 303-497-3338     Marc A. Weiss   Mathematician 303-497-3261     Victor Zhang   Electrical Engineer 303-497-3977     Contractor:   Tom Parker   303-497-7881     Stefania Romisch   303-497-3446     Jon Shirley   303-497-3125     Guest Researcher:   Paul Kunz   303-497-4778   847.80   Group Leader:   Thomas O'Brian   Acting Group Leader 303-497-4570     Staff:   Scott Diddams   Physicist 303-497-7459     Elizabeth Donley   Physicist 303-497-5173     Richard Fox   Physicist 303-497-3478     John Kitching   Physicist 303-497-4083     Chris Oates   Physicist 303-497-7654     Post Doc:   Tara Cubel-Liebisch   303-497-4878     Andrew Geraci   303-497-4981     Clark Griffith   303-497-4472     Todd Johnson   303-497-4837     Andrew Ludlow   303-497-4972     Franklyn Quinlan   303-497-4580     Guest Researcher:   Eric Blanshan   303-497-3174     Matt Eardley   303-497-7877     Tara Fortier   303-497-4686     Dirk Heinecke   303-497-4779     Yanyi Jiang   303-497-4112     Ricardo Jimenez   303-497-4876     Matthew Kirchner   303-497-7459     Svenja Knappe   303-497-3334     Nathan Lemke   303-497-4336     Stephanie Meyer   303-497-3167     Rahul Mhaskar   303-497-4621     Jan Preusser   303-497-4875     Franklyn Quinlan   303-497-4580     Susan Schima   303-497-7213     Gabe Ycas   303-497-3177   847.p3   Project Leader:   David A. Howe   Electrical Engineer 303-497-3277     Staff:   Kyle Byrnes   303-497-3207     Craig W. Nelson   Electrical Engineer 303-497-7961     Contractor:   Neil Ashby   303-497-4395     Guest Researcher:   Corey Barnes   303-497-3157     Jason DaSalva   303-497-3277     Archita Hati   303-497-5629     Danielle Lirette   303-497-5629     Jennifer Taylor   303-497-3069   847.p7   Project Leader:   Judah Levine   NIST Fellow 303-497-3903 Quantum Physics Division Org #   Position   Name   Title   Phone Number   848   Division Chief:   Steven Cundiff   Supervisory Physicist 303-492-6807     Division Secretary:   Loree Kaleth   303-735-1985     Administrative Officer:   Julia Bachinski   Administrative Officer 303-492-7786     Administrative Staff:   Heather Glenn   303-492-7791     Staff:   Eric A. Cornell   NIST Fellow 303-492-6281     David Errickson   Supply Specialist 303-492-2928     Blaine Horner   Head Instrument Shop 303-492-7775     Ralph Jimenez   Physicist 303-492-8439     Deborah Jin   NIST Fellow 303-492-0256     Konrad Lehnert   Physicist 303-492-8348     Erica Mady   303-492-7797     Diana Moreland   303-492-5128     David Nesbitt   NIST Fellow 303-492-8857     Thomas T. Perkins   Physicist 303-492-5291     Jeff Sauter   Supply Specialist 303-735-0171     James Thompson   Physicist 303-492-7558     Jun Ye   NIST Fellow 303-735-3171     Post Doc:   Arman Cingoz   NRC Postdoc 303-492-4366     Larry Fiegland   NRC Postdoc 303-492-6013     Andrew Funk   NRC Postdoc 303-492-8515     Rebecca Montange   NRC Postdoc 303-492-7818     John Perreault   NRC Postdoc 303-492-0931     Joseph R. Roscioli   NRC Postdoc 303-735-5825     Erin Williams   NRC Postdoc 303-735-5825     Guest Researcher:   John Hall   Scientist Emeritus 303-497-3126 Organizational Key 840   Physics Laboratory Office  840.02      Office of Electronic Commerce in Scientific and Engineering Data 841   Electron and Optical Physics Division  841.01      Photon Physics Group  841.02      Far UV Physics Group 842   Atomic Physics Division  842.01      Atomic Spectroscopy Group  842.02      Quantum Processes and Metrology Group  842.04      Laser Cooling and Trapping Group 844   Optical Technology Division  844.03      Optical Thermometry and Spectral Methods Group  844.04      Optical Properties and Infrared Technology Group  844.05      Optical Sensor Group  844.06      Laser Applications Group 846   Ionizing Radiation Division  846.02      Radiation Interactions and Dosimetry Group  846.03      Neutron Interactions and Dosimetry Group  846.04      Radioactivity Group 847   Time and Frequency Division  847.10      Ion Storage Group  847.40      Time and Frequency Services Group  847.40-ES          Engineering Support  847.40-WWV          Fort Collins Radio Station WWV  847.40-WWVH          Hawaii Radio Station WWVH  847.50      Atomic Standards Group  847.80      Optical Frequency Measurements Group  847.p3      Time and Frequency Metrology Project  847.p7      Network Synchronization Project 848   Quantum Physics Division