Varner CV 14oct09

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					                              Curriculum Vitae
                                    Gary S. Varner
EDUCATION

University of Hawaii                  Ph.D. Physics                Dec., 1999
Boston University                     M.A. Physics                 May, 1995
Boston University                    B.S. Electrical Engineering   May, 1989


HONORS AND AWARDS

University-based Linear Collider Detector R&D award
DOE Advanced Detector Research award, Twice, June 2006 and June 2008
Invited SLAC Experimental Seminar, Stanford Linear Accelerator Center, March 2007
Invited Advanced Instrumentation Seminar, Twice, SLAC National Accelerator Laboratory,
July 2007 and July 2009
Spokesperson, T-943 Experiment at Fermilab (High Speed Pixel Detectors)
Invited Plenary Speaker, Stanford-Novosibirsk Instrumentation Conference (SNIC06),
Stanford Linear Accelerator Center (SLAC), April 2006
Invited Plenary Speaker, Colliders to Cosmic Rays Symposium, Prague Czech Republic,
September 2005
Invited Plenary Speaker, 5th Solid-state Tracking Detector (Hiroshima) Symposium,
Hiroshima Japan, June 2004
Invited Plenary Speaker, Inaugural Australia-New Zealand Silicon Detector Symposium,
Wellington New Zealand, June 2004
Co-Investigator, Antarctic Impulsive Transient Antenna (ANITA) – NASA Small Explorer
Phase A award, October, 2003
Co-Investigator, Antarctic Impulsive Transient Antenna (ANITA) – NASA ROSS SR&T
award, 2002
Invited Plenary Speaker, APPC Linear Collider Workshop, Taipei Taiwan, Aug. 2000
Research Fellowship, Laboratory of Instrumentation and Particles, Portugal 1997
R&D 100 Award for development of Time Stretcher circuit, 1997
Invited Plenary Speaker, 3rd Tau-Charm Factory Workshop, Beijing China, January 1996
Soldier of the Cycle, Nuclear Biological & Chemical Warfare School, US Army, 1985
THESES
Varner, G. (1999). A Study of Hadronic Decays of the Chi(c) States Produced in Psi-prime
Radiative Transistions at the Beijing Experimental Spectrometer. Unpublished University of
Hawaii Dissertation.

Varner, G. (1993). Online Particle Identification Detector K/ Separation for the Fast
Strangeness Trigger at CPLEAR. Unpublished Boston University Dissertation.


PROFESSIONAL EXPERIENCE

2005-present
Assistant Professor of Physics
Department of Physics and Astronomy, University of Hawaii

     Principle Investigator for Belle CMOS Pixel upgrade project
     Co-Investigator for ANITA ultra high-energy neutrino project
     Co-spokesman, Salt detector Shower Array (SalSA) project to explore deep inelastic
      neutrino-nucleon interactions at 100TeV center-of-mass energy

2002-2005

Director, Instrumentation Development Laboratory, University of Hawaii
Senior Electrical Engineer/Physicist

     Conversion of requirements for world-class experimental research into working
      instrumentation, demanding a broad understanding of the physical principles involved
      and the limits of the technology available to solve such problems
     Instruction, guidance and professional development of a continually evolving
      technical workforce often in excess of 10 students per semester
     Innovation in the development of Application Specific Integrated Circuits (ASICs) to
      provide essential and enabling technologies to the ANITA experiment and Belle Pixel
      Vertex upgrades
     Internal constructive critique and guidance of data analysis: charmonium analyses on
      BES and Belle, background/signal processing analysis on ANITA-lite


2001-2002
Senior Scientist, AOptix Technologies Campbell, California (silicon valley)
      First principles analysis and simulation of the practical limits of communication over
       a free-space optical link
      Key member of the scientific and engineering team which demonstrated > 330Gb/s
       free-space optical transmission over large distances with high reliability
1998-2001
EE/Physicist, University of Hawaii
      Project lead for design, commissioning, operation and data analysis of the BEAST
       experiment, critical to background mitigation prior to the Belle detector roll-in
      Set-up and development of the Silicon Pixel Laboratory, which would eventually
       evolve into the Instrumentation Development Laboratory


1997-1998
Visiting Researcher, CERN & L.I.P. Portugal, based at CERN, Geneva, Switzerland
      Trigger impact studies for exclusive Compact Muon Solenoid (CMS) crystal
       Electromagnetic Calorimeter (ECAL) Tau event classification. Evolved into studies
       of B meson tagging efficiencies in CMS
      Design, simulation and prototyping for the 6 Tera-Byte/s Trigger and Data
       Acquisition System for the CMS ECAL
      Evaluation of failure detection/recovery methods for the CMS event-switch, a unit
       which will handle the equivalent volume of information per unit time of the entire
       1998 world combined telecommunications volume
      Studies of color-octet contributions to BES Chi(c) and p p-bar collisions


1995-1997
Research Associate, University of Hawaii
      Lead member of the design team which developed a self-calibrating “Time Stretcher”
       circuit topology, a project that was awarded a 1997 R&D Magazine Top 100 honors
      Conceived of, designed and developed the prompt charged-track trigger system for
       Belle, the Japanese B-Factory experiment at the KEK laboratory in Tsukuba, Japan
      Development and instrumentation of superior performance particle identification
       detectors based on the Time-Of-Flight technique for high-rate, self-trigger
       measurements


1994-1995
Adjunct Professor
Wentworth Institute of Technology, Boston, Massachusetts
      Taught courses in modern physics and lasers
1993-1995
Senior Electrical Engineer/Physicist, Boston University
      Electronics coordinator for the US ATLAS detector muon system at the CERN Large
       Hadron Collider (LHC)
      Detailed simulation and measurement of the Monitored Drift Tube (MDT)
       performance as a function of gas type and magnetic field for the ATLAS muon
       system
      Fabrication and testing of a GaAs ASIC for ultra high-speed triggering applications,
       at the time probably the fastest non-military Bandwidth x Time chip ever made


1992-1993
Physics Design Engineer
Boston University and the Superconducting Super-Collider Laboratory, Boston / Dallas, TX
      Designing, prototyping and costing of the anode readout of the Muon system cathode
       strip chamber instrumentation electronics of the GEM Detector project at the
       Superconducting Super-Collider


1987-1992
Research Associate/Graduate Research Associate, Boston University
      Designed, built and calibrated a laser calibration system for the high-precision
       Particle Identification Detector (PID) system of the CP-LEAR experiment
      Design, construction and implementation of high-speed analog and digital circuits,
       with an emphasis on ECL and fast TTL data transmission, crucial to establishing
       Kaon/pion separation within 2 micro-seconds after anti-proton annihilation.
      Simulation studies of Kaon trigger efficiency


1986-1987
Research Assistant, Boston University
      Assisted in setting-up, calibrating and monitoring a tagged photon beam at the
       MIT/Bates Linear Accelerator for calibration of the EGRET satellite for NASA prior
       to launch
      Design, fabrication and test of Pb-glass block calorimeter arrays and pulsed LED
       fiber-optic calibration system for the Eta  gamma gamma experiment at MIT/Bates
TEACHING EXPERIENCE

University of Hawaii Formal Instruction

      Instructor – PHYS274 (Modern Physics). Spring 2007
      Instructor – PHYS 476 (Modern Electronics for Physicists. Proposed and
       campaigned for inclusion of this course into the curriculum. Approved summer 2005
       and first taught Spring 2006 semester. Spring 2007, 2008.
      Instructor – PHYS475 (Electronics for Physicists I). Revamped course as of Fall
       2005 and even further in Fall 2006 to introduce concepts of programmable logic and
       firmware design – the workhorse of all modern electronics – to the lecture and
       laboratory. Fall 2007, 2008, 2009.
      Instructor – PHYS305 (Computational Physics). Spring 2007, 2008.
      Adjunct lecturer in PHYS 475 (Electronics for Physicists) course: Fall 2003 semester
       during Prof. Gorham’s deployment to Antarctica; Fall 2002 during intervals when his
       attendance was mandated away from Hawaii.
      Guest lecturer in PHYS 475 course when Prof. Crooker had scheduling conflicts,
       1997 - 2000
      Teaching Assistant, Physics 100 laboratory, Fall 1995


NASA Space-Grant Fellowship
      Mentored senior physics student Brandon Merz in the design and test of trigger test
       electronics for the Antarctic Impulsive Transient Antenna (ANITA).


Quarknet Program
      Mentored High School physics teacher Peter Grach in the pioneering summer
       program to introduce the Quarknet program to Hawaii. Guided him in Time-Of-
       Flight long-term scintillator degradation studies, producing very interesting results to
       compare with those obtained in Japan


Wentworth Institute of Technology
      Adjunct Professor, taught modern physics and laser courses, Fall 1994/Spring 1995
PAST AND PRESENT STUDENTS AND POSTDOCTORAL FELLOWS

Fang Fang (PhD with the High Energy Physics group)
      Mentored on the readout and processing of pixel vertex detector prototypes
      Currently Post-doctoral fellow at McGill University in Toronto on the ATLAS
       detector, for which she is applying the trigger firmware expertise developed under my
       guidance


Marlon Barbero (my Postdoctoral Fellow)
      Significant contribution to
      Currently Post-doctoral fellow at McGill University in Toronto on the ATLAS
       detector, for which she is applying the trigger firmware expertise developed under my
       guidance


Hulya Guler
      Mentored through upgrade of the Belle Time of Flight Trigger electronics
      Currently Post-doctoral fellow at McGill University in Toronto on the ATLAS
       detector, for which she is applying the trigger firmware expertise developed under my
       guidance


Maria Elena Martin (engineering PhD received from work done in my lab)
      Mentored through the design, fabrication and evaluation of the Continuous
       Acquisition Pixel (CAP) monolithic active pixel sensor, which was the core of her
       doctoral thesis
      Elena subsequently was hired as a postdoctoral fellow at the University College of
       Louvaine, Brussels


Jamal Rorie (currently my doctoral student in Physics)
      Mentored through development of the Signal Timing And Readout (STAR) Front-end
       INstrumentation Entity for Subdetector Specific Electronics (FINESSE), a high-
       luminosity Time-Of-Flight upgrade
      Awarded a …. Award for this development


Larry Ruckman (currently my Masters’ student in Physics)
      Mentored Larry since he was an undergraduate
      Have co-authored a number of high-impact Instrumentation papers on the high timing
       performance ASICs that we have developed


Michael Cooney (currently my doctoral student in Electrical Engineering)
      Mentored through upgrade of the Belle Time of Flight Trigger electronics




INTERNATIONAL VISITORS TO THE ID-LAB

Finland Visitors (PhD with the High Energy Physics group)
      Mentored on the readout and processing of pixel vertex detector prototypes
      Currently Post-doctoral fellow at McGill University in Toronto on the ATLAS
       detector, for which she is applying the trigger firmware expertise developed under my
       guidance
SUMMARY OF GRANT APPLICATIONS

Successful grant applications require an enormous amount of time and effort. The
probability of any given grant being selected the first time is low and may require repeated
submissions before a strong enough case is made. A listing of the grants submitted during
my probationary period is provided below. These are in addition to the yearly renewals that
we provide for our DOE University program base grant.

“Development of the Continuous Acquisition Pixel Vertex Detector for High Luminosity
e+e- Colliders” Principle Investigator, Department of Energy (DOE) 2006 Outstanding
Junior Investigator program, 3-year, 382.2K$.


“Characterization of Microwave Continuum Emission from Ultra-High Energy Cosmic Ray
Air Showers” co-Investigator (Gorham PI) , National Science Foundation (NSF) 2006
Particle Astrophysics program, 3-year, 478.4K$.


“Pixel-level Sampling CMOS Vertex Detector for the ILC” Principle Investigator, Joint
NSF/DOE 2006 University Linear Collider R&D program, 1-year, 46.0K$.


“Collaborative Research: AURA (Askaryan Underice Radio Array) A Successor to RICE
and Prelude to 10-km Scale Neutrino Detector” co-Investigator, NSF Office of Polar
Programs 2006 initiative request, 2-year, 206.4K$.


“Development of Practical Large-Scale Radio Frequency Neutrino Detectors” Principle
Investigator, 2006 NSF CAREER award, 5-year, 1,536.3K$.


“Fabrication of Askaryan Ground Electronics Station (CAGES)” Principle Investigator,
2007 Univ. of California Irvine subaward, 1-year, 9.0K$.


“Statement of Previous Scientific Work and Immediate Research Plans” Sloan Fellowship,
40.0K$.


“Development of a Photodetector Read Out Monolithic Precision Timing (PROMPT)
Device” Principle Investigator, 2006 DOE Advanced Detector Research award, 1-year,
37.0K$.


“University of Hawaii Charmed Physics Research Center” co-Investigator, 2007 NSF PIRE
initiative, 3-year, 300.0K$.
“Enhancing Physics Reach of High Luminosity e+e- Colliders with the Continuous
Acquisition Pixel Vertex Detector” Principle Investigator, Department of Energy (DOE)
2007 Outstanding Junior Investigator program, 3-year, 388.4K$.


“A High Sensitivity Balloon-Borne Soft Gamma-ray Polarimeter” co-Investigator, 2007
NASA Research Opportunities in Spaces Science (ROSS) program, 3-year, 211.6K$.


“The Second Antarctic Impulsive Transient Antenna (ANITA) Mission” co-Investigator,
2007 NASA Research Opportunities in Spaces Science (ROSS) program, 3-year, 1,402.6K$.


“AURA2 Prototype Fabrication” Principle Investigator, 2007 Univ. of Wisconsin IceCube
subaward, 1-year, 15.0K$.


“An IceCube-centered Radio Array for Ultra-High Energy Neutrino Event Cross-
calibrations” co-Investigator, NSF Office of Polar Programs 2007 initiative request, 2-year,
300.0K$.


“Improved Super Flavor Factory Discovery Potential Through Improved Vertex
Reconstruction” Principle Investigator, Department of Energy (DOE) 2008 Outstanding
Junior Investigator program, 3-year, 388.4K$.


“Mission Concept for the Next Generation Gamma-Ray Space Telescope: The Advanced
Pair Telescope (APT)” co-Investigator, 2007 NASA Research Opportunities in Spaces
Science (ROSS) program, 1-year, 31.6K$.


“Continued funding: Pixel-level Sampling CMOS Vertex Detector for the ILC” Principle
Investigator, Joint NSF/DOE 2007 University Linear Collider R&D program, 1-year,
48.0K$.


“A High Sensitivity Balloon-Borne Soft Gamma-ray Polarimeter” co-Investigator, 2008
NASA Research Opportunities in Spaces Science (ROSS) program, 3-year, 230.9K$.


“Three-Dimensional Track Imaging Detector for the Next-Generation Gamma-Ray Mission”
co-Investigator, 2008 NASA Research Opportunities in Spaces Science (ROSS) program, 3-
year, 239.4K$.


“Laboratory Particle Astrophysics: a system to study microwave emission from plasmas”
Principle Investigator, Cottrell Scholar Award, 1-year, 100.0K$.
“High Precision Timing, Integrated Photodetector Readout” Principle Investigator, 2008
DOE Advanced Detector Research award, 1-year, 70.0K$.


“Time Resolved Spectrofluorimeter Readout” Principle Investigator, Joint Lightspin
Technologies Small Business Innovation in Research (SBIR) award, 2-year, 150.0K$.


“A Highly Robust Sampling CMOS Vertex Detector” Principle Investigator, Joint
NSF/DOE 2008 University Linear Collider R&D program, 1-year, 35.0K$.


“The Development of Large Area Fast Photo-detectors” co-Investigator, DOE Detector
Development supplemental award, 3-year, 540.0K$.


“The Development of Large Area Fast Photo-detectors”        co-Investigator, NSF/DHS
Academic Research Initiative, 5-year, 713.7K$.


“Collaborative Research: MRI-R2 Instrument Development of the Askaryan Radio Array
(ARA), A Large-scale Radio Cherenkov Neutrino Detector at the South Pole” co-
Investigator, NSF Major Research Instrumentation award, 5-year, 230.0K$.


“High event rate readout electronics for imaging/timing microchannel plate cross-strip
detectors” co-Investigator, DOE/NNSA Novel Remote Sensing Approaches award, 3-year,
391.2K$.


“Development of Fast, Precision Space-Time Semiconductor Detectors”        Principle
Investigator, Department of Energy (DOE) 2009 Early Career Research program, 5-year,
750.0K$.
FUNDING HISTORY

As a result of extensive collaboration on a number of International projects, I have been able
to secure a number of grants from a variety of funding sources as listed in Table 1. My
instrumentation development spans a large number of disciplines and has subsequently
received extensive support from multiple funding agencies.


Table 1: Summary of Grants awarded, including those continuing into future fiscal years and
awarded on a perpetual basis. All values are in thousands of $ [kilo-dollars (K$)], and
approximations are used for future and out years. A couple of million $ in research funds have
already been received.

                           Total              Approximate Fiscal Year               Varner
Funding Source            Funding     2006    2007 2008 2009 2010               2011 Total
US-Japan
Foundation                  150.0              25.0    28.4     72.8                    126.2
KEK/TARGET                   70.0                               70.0                     70.0
DOE Adv. Det. Rsch.         107.3              37.3    70.0                             107.3
Linear Collider Det.
R&D                          73.5     23.0     22.5    28.0                              73.5
Lightspin Tech              150.0              75.0    75.0                             150.0
CNS/VC Rsch
initiative                    53.0                     53.0                               53.0
Univ. Wisconsin               15.0             15.0                                       15.0
Univ. California Irvine        9.9      9.9                                                9.9
Nagoya Univ.                  26.5                              26.5                      26.5
DOE/Argonne Natl
Lab                        8000.0                             180.0 180.0 180.0         540.0
KEK/Belle2 Upgrade          161.0                             161.0                     161.0
NSF/DNDO (5 year)          5000.0                             132.9 150.3 127.6         713.7
NASA ANITA-I               1191.0 119.1 119.1                                           238.2
NASA ANITA-II              1402.6                      93.5     93.5    93.5            280.5
DOE Hawaii base
grant                      6772.2 165.8 165.8 165.8 179.8 179.8 179.8 1036.8
TOTAL Est.                                                            3601.6


These funds have supported a team of engineers, graduate students and undergraduate
students that are the critical to the success of our renowned and high-impact program of
Instrumentation development.
SELECTED PUBLICATIONS

Please Note: As a present and previous member of a number of very large and international
experimental collaborations, in recognition of essential contributions made to the design, construction
and operation of these experiments, I am author on over 600 high energy and astroparticle physics
experimental papers. While without my contributions to these experiments there may never have
been a paper, it is likewise obvious that I cannot have played an essential role in every paper.
Therefore, please find below a select group of publications in which I have made crucial
contributions. An unabridged listing of my publications may be found at the end of this document,
with an indication of contribution level to each document.

J-F. Genat, G. Varner, F. Tang, H.J. Frisch, “Signal Processing for Pico-second Resolution Timing
Measurements,” Nucl. Instr. Meth. A607 (2009) 387-393.

P.W. Gorham et al, (ANITA Collaboration) “New Limits on the Ultrahigh Energy Cosmic Neutrino
Flux from the ANITA Experiment”, Phys. Rev. Lett. 103, 051103 (2009).

P. Allison et al, (IceRay Collaboration), “IceRay: An IceCube-centered radio Cherenkov GZK
neutrino detector,” Nucl. Instr. Meth. A604 (2009) S64-S69.

G. Varner and L. Ruckman, “Sub-10ps Monolithic and Low-power Photodetector Readout,”
Nucl. Instr. Meth. A602 (2009) 438-445.

H. Hoedlmoser, G. Varner and M. Cooney, “Hexagonal pixel detector with time encoded binary
readout,” Nucl. Instr. Meth. A599 (2009) 152-160.

P.W. Gorham, et al., (ANITA Collaboration) “The Antarctic Impulsive Transient Antenna Ultra-high
Energy Neutrino Detector Design, Performance, and Sensitivity for 2006-2007 Balloon Flight”,
Astropart. Phys. 32:10-41 (2009).

J. Benitez, D.W.G.S. Leith, G. Mazaheri, B.N. Ratcliff, J. Schwiening, J. Vavra, L. Ruckman and G.
Varner, “Status of the Fast Focusing DIRC (fDIRC),” Nucl. Instr. Meth. A595 (2008) 104-107.

G. Varner, L. Ruckman and A. Wong, “The First version Buffered Large Analog Bandwidth
(BLAB1) ASIC for high luminosity collider and extensive radio neutrino detectors,” Nucl.
Instr. Meth. A591 (2008) 534-545.

E. Martin, G. Varner, A. Koga, L. Ruckman, P. Onaka, J. Tonry and A. Lee, “High Voltage CMOS
Control Interface for Astronomy-Grade Charged Coupled Devices”, Journal of Instrumentation,
Volume 3, P12003 (2008).

G. Varner and L. Ruckman, “The PRO1 ASIC for Fast Wilkinson Encoding”, Journal of
Instrumentation, Volume 3, P12003 (2008).

F.A. Harris, J.W. Kennedy, Q. Liu, L. Nguyen, S.L. Olsen, M. Rosen, C.P. Shen, G.S. Varner, Y.K.
Heng, Z.J. Sun, K.J. Zhu, Q. An, C.Q. Feng, S.B. Liu, “BES3 time of flight monitoring system,” Nucl.
Instr. Meth. A593 (2008) 255-262.

G. Varner, et al, “Large Analog Bandwidth Recorder And Digitizer with Ordered Readout
(LABRADOR) ASIC,” Nucl. Instr. Meth. A583 (2007) 447-460.

G. Varner and L. Ruckman, “A Monolithic Time Stretcher for Precision Time Recording”, Journal of
Instrumentation, Volume 2, P04006 (2007).

P.W. Gorham et al, (ANITA Collaboration) “Observation of the Askaryan Effect in Ice”, Phys. Rev.
Lett. 99, 171101 (2007).

G. Varner, et al, “Development of the Continuous Acquisition Pixel (CAP) sensor for high luminosity
lepton colliders,” Nucl. Instr. Meth. A565 (2006) 126-131.
L. Ruckman, G. Varner, S. Stanic, A. Koga and T. Tsuboyama, “Development and Implementation of
a Readout Module for Radiation Sensing Field-Effect Transistors,” IEEE Trans. Nucl. Sci. 53 (2006)
2452-2455.

G.S.Varner, L.L.Ruckman, J. Schwiening, J. Vavra “Compact, low-power and precision timing
photodetector readout, Proceedings of Science PD07:026 (2008).

G. Varner, “The Modern FPGA as Discriminator, TDC and ADC”, Journal of Instrumentation,
Volume 1, P07001 (2006).

E. Martin, G. Varner, M. Barbero, J. Kennedy, H. Tajima and Y. Arai, “Hard X-Ray SOI Sensor
Prototype”, Proceedings of the 2nd Conference on PhD Research in Microelectronics and Electronics
(PRIME), pp. 417-420, Otranto (Lecce) Italy, June 12-15, 2006.

G. Varner, et al, (ANITA Collaboration) “Detection of Ultra High Energy Neutrinos via Coherent
Radio Emission,” Presented at 9th International Symposium on Detector Development for Particle,
Astroparticle and Synchrotron Radiation Experiments (SNIC 2006), Menlo Park, California, 3-6
April 2006, SLAC-PUB-11872, 6pp. May 2006.

S. Barwick, et al, (ANITA Collaboration) “Constraints on Cosmic Neutrino Fluxes from the Antarctic
Impulsive Transient Antenna Experiment,” Phys. Rev. Lett. 96 (2006) 171101.

G. Varner, et al, “A Giga-bit Ethernet Instrument for SalSA Experiment Readout,” Nucl. Instr. Meth.
A554 (2005) 437-443.
M. Barbero, G. Varner. et al, “Development of the Continuous Acquisition Pixel Detector for Super
B-factory”, IEEE Trans. Nucl. Sci. 52 (2005) 1187.
G. Varner, et al, “Development of a Super B-Factory Monolithic Active Pixel Detector – the
Continuous Acquisition Pixel (CAP) Prototypes,” Nucl. Instr. Meth. A541 (2005) 166-171.

G. Varner, et al., “Monolithic Multi-channel GSa/s Transient Waveform Recorder for Measuring
Radio Emissions from High Energy Particle Cascades,” Proc. SPIE Int. Soc. Opt. Eng. 4858-31,
2003.
R. Milinic, et al., “Testbed for Measurments of Coherent Radio Cherenkov Emission from Cosmic
Ray Induced Cascades,” Proc. SPIE Int. Soc. Opt. Eng. 4858:163-170, 2003.
R. Abe, et al., “Status of the Belle Silicon Vertex Detector,” Nucl. Instr. Meth. A478:296-298, 2002.
J.W. Nam, et al., “A Detailed Monte Carlo Simulation for the Belle TOF System,” Nucl. Instrum.
Meth. A491:54-68, 2002.
J.Z. Bai, et al., “The BES Upgrade,” Nucl. Instrum. Meth. A458:627-637, 2001.
G. Varner, et al., "Silicon Pixel Detector R&D for a Beam Profile Monitor," Taipei 2000, Asian
Pacific Physics Conference, APPC 2000 572-577.
G. Alimonti, et al., “The Belle Silicon Vertex Detector,” Nucl. Instrum. Meth. A453 (2000) 71-77.
H. Kichimi, G. Varner, et al., "The Belle TOF System," Nucl. Instr. Meth. A453 (2000) 315-320.
J.Z. Bai, et al., “Study of the Hadronic Decays of Chi_c States,” Phys. Rev. D60:072001, 1999.
R.M. Carey, et al., “New Measurement of the Anomalous Magnetic Moment of the Positive Muon,”
Phys. Rev. Lett. 82:1632-1635, 1999.
G. Varner and Sahu, SK "Pixel Detectors in a B Factory Environment and Thoughts on Use in Belle,"
2nd Workshop on Backgrounds at Machine Detector Interface 162-180, 1997.
R. Adler, et al, “First Observation of Particle – Anti-Particle Asymmetry in the Decay of Neutral
Kaons into Pi0 Pi0,” Z. Phys. C70:211-218, 1996.
G. Varner, et al., “A Scintillating Fiber Hodoscope for A Bremsstrahlung Luminosity Monitor at an
Electron-Positron Collider,” Rev. Sci. Instrum. 67:2780-2787, 1996.
H. Kichimi, et al., “The Cherenkov Correlated Timing Detector: Beam Test Results from Quartz and
Acrylic Bars,” Nucl. Instrum. Meth. A371:91-95, 1996.
Y. Bonushkin, et al., “A UV Laser Technique for the Lorentz Effect Compensation Studies in Endcap
Cathode Strip Chambers,” Nucl. Instrum. Meth. A367:311-315, 1995.
ATLAS: Technical Proposal for a General-Purpose P P Experiment at the Large Hadron Collider at
CERN (MDT Muon electronics). CERN-LHCC-94-43, Dec 1994. 289pp.
G. Varner, et al., "A Deadtimeless Multihit TDC for the new g-2 Experiment," 4th International
Conference on Electronics for Future Colliders 223-232, 1994.
E. Hazen, et al., “A New Multihit Digital TDC Implemented in a Gallium Arsenide ASIC,” IEEE
Trans. Nucl. Sci. 41: 1125-1129, 1994.
D.H. Orlov, et al., “A Fast TDC for the CPLEAR Experiment at CERN,” Nucl. Instrum. Meth.
A333:513-518, 1993.

GEM Technical Design Report (Muon System Electronics). GEM-TN-93-262, SSCL-SR-1219, Apr
1993. 628pp.
CONFERENCE PRESENTATIONS AND INVITED SYMPOSIA
Readout Electronics for the HanoHano Large Liquid Scintillation Detector. Advanced
Neutrino Technology Workshop (ANT09), East-West Center, University of Hawaii, August
13, 2009.

Radio Detection of Extreme Energy Collsions. Invited Advanced Instrumentation Seminar,
SLAC National Accelerator Laboratory, July 23, 2009.

Radio Detection of UHE Events. Invited Particle Astrophysics Seminar, Leung Center for
Cosmology and Particle Astrophysics [LeCosPA], National Taiwan University (Taipei,
Taiwan), June 18, 2009.

Radio Detection of UHE Events. Supersymmetry 2009 (SUSY09) Conference, Northeastern
University (Boston), June 6, 2009.

Ultra Fast Analog and Timing CMOS Digitizers. Invited Keynote Talk, IEEE Real-Time
2009 (RT09), Institute for High Energy Physics (Beijing, China), May 11, 2009.

Radio Frequency detection of ultra-high-energy neutrinos. Invited Keynote Particle
Astrophysics Talk, Technology In Particle Physics (TIPP09) Conference (Tsukuba, Japan),
March 13, 2009.

Focusing DIRC with waveform digitizing electronics.         Technology In Particle Physics
(TIPP09) Conference (Tsukuba, Japan), March 13, 2009.

The Atmospheric Molecular Bremstrahlung Experimental Radiometer (AMBER) Project.
Invited High Energy Physics Seminar, University College London (London, United
Kingdom), Oct. 17, 2008.

The Second Buffered LABRADOR (BLAB2) ASIC for Precision Time Encoding. 6th
International pico-second precision Timing Workshop, Institute for Nuclear Physics,
University of Lyon (Lyon, France), Oct. 15, 2008.

Radio Detection of Ultra High Energy Neutrinos. Invited Physics Department Seminar,
Enrico Fermi Institute, University of Chicago, Sept. 29th, 2008.

Atmospheric Molecular Bremstrahlung Detection of High Energy Cosmic Rays, Invited
Colloquium, Institute for Cosmic Ray Research, University of Tokyo (Tokya, Japan), Jul. 11,
2008.

Radio Detection of Ultra High Energy Neutrinos. Invited Physics and Geophysics
Colloquium, Nagoya University (Nagoya, Japan), Jul. 10, 2008.

ASICs for Frontier Discovery Research. Center for Nanofabrication and Materials, University of
Barcelona Autonomia (Barcelona, Spain), May 9, 2008.
Requirements for Precision Vertex Detection at the Super-KEKB Detector. Max Planck Institute for
Semiconductor Research (Munich, Germany), May 10, 2008.

ASICs for Precistion Timing Measurement. 4th International pico-second precision Timing
Workshop, University of Chicago, Mar. 26, 2008.

Designing, Building, Testing and Using the LABRADOR chip. 2nd International pico-second
precision Timing Workshop, University of Chicago, Dec. 17, 2007.

Vertex Detector Upgrade for SuperB. 2007 Joint BES-Belle-CLEO-Babar Workshop on
Charm Physics, Institute for High Energy Physics, Beijing, China, Nov. 27th, 2007.

Radio Detection of Ultra High Energy Neutrinos. Physics Department Seminar, Institute for
High Energy Physics, Beijing, China, July 18th, 2007.

ASICs for Particle and Astroparticle Physics. Invited Advanced Instrumentation Seminar,
Stanford Linear Accelerator Center, Palo Alto, California, July 11th, 2007.

Compact, low-power and (deadtimeless) high timing precision photodetector readout.
Photo-Detector 2007 International Conference, Kobe, Japan, June 30th, 2007.

Radio Detection of Ultra High Energy Neutrinos. Invited SLAC Experimental Seminar,
Stanford Linear Accelerator Center, Palo Alto, California, March 27th, 2007.

Recording Electronics and Communications for a Large, Underwater Liquid Scintillator
Neutrino Detector. Deep Ocean Anti-Neutrino Observatory Workshop, Honolulu, Hawaii,
March 25th 2007.

Radio Detection of UHE Neutrinos. KEK Physics Seminar, High Energy Accelerator
Research Laboratory (KEK), Tsukuba, Japan, March 12th 2007.

The Radio Technique and the Exploration of the Extreme Energy Universe. Plenary
Presentation, TeV and Beyond Conference, Madison, Wisconsin, August 31st 2006.

Askaryan Under-ice Radio Array: A successor to RICE and prelude to a 10-km scale
neutrino detector. Working Group Presentation on New Techniques, TeV and Beyond
Conference, Madison, Wisconsin, August 30th 2006.

Messengers from the Edges of Our Universe. University Invited Lecture, Nanjing University
of Information Science and Technology, Nanjing, China, July 19th 2006.

Ultimate Particle Identification Detector performance in a flavor-factory environment,
Progress toward a focusing DIRC. Modern Physics Department Colloquium, University of
Science and Technology of China, Hefei, China July 14th 2006.

ASICs for High-speed Transient and Position Recording, Modern Physics Department
Seminar, University of Science and Technology of China, Hefei, China, July 13th 2006.
Detection of Ultra High Energy Neutrinos via Coherent Radio Emission. Stanford-
Novosibirsk Instrumentation Conference (SNIC06), Palo Alto USA, April 2-6, 2006.

Radio Detection of Ultra High Energy Neutrinos: ANITA and SalSA for both Astrophysics
and Particle Physics. Plenary presentation, Colliders to Cosmic Rays (C2CR) conference,
Prague, Czech Republic, Sept 8-12, 2005.

Belle Pixel Detector Upgrade.     Plenary presentation, PIXEL 2005 Conference, Bonn
Germany, Sept. 4-7, 2005.

Belle Pixel Detector Upgrade and Relevance to ILC Vertexing. International Linear Collider
Vertex Detector Working Group, Snowmass Colorado, Aug. 12-16, 2005.

Radio Detection of Ultra High Energy Neutrinos: ANITA and others. Physics Department
Colloquium, University of Cincinnati, July 27th 2005.

An Introduction to Continuous Acquisition Pixel -- Monolithic Active Pixel Sensor. Linear
Collider Vertex Detector Working Group, Japanese High Energy Accelerator Research
Organization (KEK), Tsukuba, Japan, June 16th 2005.

Pixel Detector Upgrade Progress. 2nd International Workshop on High Luminosity B-
Factory, University of Hawaii, April 20th 2005.

The Antarctic Implusive Transient Antenna (ANITA) and the search for Ultra High Energy
neutrinos. Physics Department Colloquium, at the High Energy Accelerator Research
Organization (KEK), Tsukuba Japan, March 25th 2005.

Salt dome Shower Array (SalSA) Instrumentation. Symposium on Use of Salt Formations for
Ultra High Energy neutrino detection, Stanford Linear Accelerator Center, February 2005.

The Antarctic Implusive Transient Antenna (ANITA).         Physics Department Seminar,
University of Kansas, December 2nd 2004.

ANITA & ANITA-lite: A Pathfinding Long-Duration Balloon Mission to Constrain the Origin
of the Highest Energy Cosmic Rays, Astrophysics and Cosmology Seminar, University of
Minnesota, November 2004.

Discoveries Big and Small.      Physics Department Colloquium, University of Hawaii,
November 2004

Particle Astrophysics Initiatives: ANITA and others.    Physics Department Colloquium,
University of Canterbury, June 25th 2004

Silicon at Belle and Super Belle. Inaugural Australia-New Zealand Silicon Detector
Symposium, New Zealand Royal Society, Wellington New Zealand, June 21st 2004
Monolithic Active Pixel Sensors: Recent Progress. 5th International Solid-state Detector
(“Hiroshima”) Symposium, June 2004

The ANITA project and Belle vertex upgrades. Princeton University High Energy Physics
seminar, March 2004.

Initiatives in Ultra-High Energy neutrino detection: ANITA and SalSA. Boston University
High Energy Physics Seminar, February 2004.

Belle Monolithic Thin Pixel Upgrade. Super B Factory Workshop in Hawaii, January 2004.

Pipelined Readout for Super-Belle. Super B Factory Workshop in Hawaii, January 2004.

Precision Timing and Continuous Acquisition Pixels.        Trigger and Data Acquisition
Workshop, Nara University, November 2003.

Precision Timing: Monolithic Time Stretcher and High-Speed Sampling. 5th Workshop on
Higher Luminosity B Factory, Izu Japan, August 25, 2003.

New Initiatives in Ultra-High Energy neutrino detection. Institute for High Energy Physics
Seminar, Beijing P.R.C., March 2003.

Advanced Instrumentation Techniques: High-performance Timing, Sampling and Particle
Identification. University of Science and Technology of China (USTC) Special Seminar,
Hefei, Anhui P.R.C., March 2003.

The Antarctic Impulsive Transient Antenna: a Detector for Ultra-High Energy neutrinos.
Paul-Scherrer Institute Seminar, Villigen Switzerland, November 2002.

Common Pipelined Platform for Electronics Readout (COPPER), Front-end Instrumentation
Entity for Subdetector Specific Electronics (FINESSE) and custom timing and sampling
ASICS. Trigger and Data Acquisition Workshop, Osaka City University, October 2002.

The Self-Triggered Recorder for Analog Waveforms (STRAW). SPIE Meeting, Waikaloa
Hawaii, August 2002.

A Monolithic Time Stretcher for Large System Precision Timing. 4th Workshop on Higher
Luminosity B Factory, Kanagawa Japan, August 2002.

High Precision Time-Of-Flight: Belle Experience and Future R&D. BESIII Workshop,
Institute of High Energy Physics, Beijing P.R.C., June 25th 2002.

A Pair Loss Monitor for Luminosity Monitoring of a Future Linear Collider Detector. Asian
Pacific Particle Conference, National Taiwan University, Taipei Taiwan, August 2000.
The Background Exorcism for A Stable Belle (BEAST) Experiment: Results and Lessons.
Workshop on B Factory backgrounds, Tsukuba Japan, November 1999.

Intermediate Resonances in Hadronic Decays of the Chi(c) States. Institute for High Energy
Physics High Energy Physics Seminar, Beijing P.R.C., May 1999.

Initial Performance Results of the Belle Time-of-Flight System.     Beijing Experimental
Spectrometer Upgrade Working Group, Beijing P.R.C., May 1999.

Data Concentration and Sparsification for the Compact Muon Solenoid (CMS) Subdetector
Systems. Joint LHC Trigger and Data Acquisition Workshop, CERN, Geneva Switzerland,
April 1998.

Design Performance and Queuing Simulation of the Compact Muon Solenoid (CMS)
Electromagnetic Calorimeter (ECAL) Data Concentrator. LHC Electronics Review, ETH
Zurich, Zurich Switzerland, October 1997.

A Time Expanding Multihit TDC for the Belle TOF Detector at the KEK B-Factory. Sixth
International Conference on Electronics for Particle Physics, Chestnut Ridge New York, May
1997.

Pixel Detectors in a B-Factory Environment and thoughts on use in Belle. 2nd Workshop on
Backgrounds at the Machine Detector Interface, Honolulu Hawaii, March 1997.

Thoughts on a 50ps Time-of-Flight System. Beijing Tau-Charm Factory Workshop, Beijing
P.R.C., February 1996.

A FASTBUS Readout System for the Belle Time-of-Flight Detector. Particle Identification
Workshop, Okayama University, Okayama Japan, July 1995.

Simulation and Test Results of the ATLAS Modified Drift Tube (MDT) Performance. LHC
Electronics Review, NIKHEF, Amsterdam Netherlands, December 1994.

A New Multihit Digital TDC Implemented in a Gallium Arsenide ASIC. IEEE Nuclear
Science Symposium, San Francisco California, November 1994.

A Deadtimeless Multihit TDC for the new g-2 Experiment. 4th International Conference on
Electronics for Future Colliders, Chestnut Ridge New York, May 1994.
EXPERT REVIEW PANELS
Concept Study: Radio Detection Augmentation for the IceCube Detector Array at the South
Pole, IceCube Headquarters, Madison WI, April 20-22, 2006.

Technology Assessment Review: Prospects for extreme sub-micron pipelined pixel readout
electronics, Fermi National Accelerator Laboratory, Chicago IL, July 28th, 2005.

Concept Design Review: Imaging Hard X-Ray Compton Polarimeter, Tokyo Japan, June
2005.

Technology Assessment Review: fully depleted SOI as a pixel sensor technology for
International Linear Collider Vertex Detector, Japanese Institute for High Energy Accelerator
Research (KEK), June 2005.

Technology Assessment Review:          CMOS image sensors for future vertex detectors,
Fermilab, December 2004.
Critical Design Review: Radio Ice Cherenkov Experiment (RICE) version 2 readout
instrumentation, University of Kansas, December 2004.

Preliminary Design Review: an ASIC Upgrade to the Super-Kamiokande ATM TKO
Readout System, Boston University, February 2004.

Critical Design Review: the LABRADOR and DRS2 ASICS. Copthorne Hotel, London
England, July 2003.

Performance Review on Using the APV25 ASIC for the Belle SVD3 Vertex Detector,
Imperial College, London England, June 2003.

Critical Design Review: the Domino Ring Sampler (DRS) ASIC, Paul-Scherrer Institute,
Villigen Switzerland, November 2002.

BESIII Time of Flight Design Review, Institute for High Energy Physics, Beijing P.R.C.,
June 2002.

Critical Design Review of the Belle Silicon Vertex Detector (SVD2) Readout and Power
Supply System, Institute for Nuclear and Particle Physics, Krakow Poland, January 2000.

Design Performance of the Viking Architecture (VA-2) chip in the AMS 0.35um process and
Radiation Hardness Issues, IDE AS, Oslo Norway, January 2000.

Preliminary Design Review of the BES Upgrade pipeline electronics and TOF Readout,
Institute for High Energy Physics, Beijing P.R.C., May 1999.

Design Review of a Radiation Tolerant Viking Architecture (VA) silicon strip readout ASIC
in the AMS 0.8um process, IDE AS, Oslo Norway, August 1998.

Selected Patent Disclosures
"A Monolithic Charge Integrating Wavefront Sensor Readout", patent rights held AOptix Tech
"An Integrated Charge Pump HV Bi-morph Mirror Driver", patent rights held AOptix Tech
PUBLICATION REVIEW ACTIVITIES

      Evaluated 10 Abstracts and evaluated suitability for Oral presentation at the 2006
       IEEE Nuclear Science Symposium, October 2006.

      2 articles for NIM proceedings submission for the Pixel 2005 (Bonn, Germany)
       Symposium, September 2005.

      2 articles for NIM proceedings submission for the 5th Solid-state Tracking Detector
       (Hiroshima) Symposium, June 2004.

      2 accepted papers (PLB and PRD), and 2 papers currently in review for the Belle
       experiment, including diverse topics: charmed baryons and leptonic B decays

      2 papers (accepted by NIM) for the Vertex 2003 Conference held in Kona, Hawaii

      more than 20 papers on the BES experiment, including very difficult and
       controversial partial wave analyses of the low mass Sigma(500) resonance


PROFESSIONAL SERVICE ACTIVITIES

Given expertise in electronics and system design, have been asked to review proposals to the
DOE Advanced Detector Research and Small Business Innovation in Research programs.

IEEE Nuclear Science Symposium Session Convener and Chairman

				
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