Download T e xas Tech University | Lubbock, TX

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The Center for Pulsed Power and Power Electronics
Department of Electrical and Computer Engineering
Texas Tech University, Lubbock, TX 79409-3102
P (806)742-3468 | F (806)742-1281 | E [email protected]
Website: www.p3e.ttu.edu
The Center for Pulsed Power and Power Electronics
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The P3E Center at a Glance
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The Center for Pulsed Power and Power Electronics started as a Plasma research
group at Texas Tech University in 1966. The initial work was concerned with harmonic ion cyclotron resonances in small mirror machines, laser heating of magnetized plasmas, and pellet injection in hot dense plasmas. In 1977 a small Tokamak
was constructed and used for various wave propagation studies in the ion cyclotron
range of frequencies. In the last few years the emphasis has been on power electronics, applications of plasma technology to pulsed power devices, high power microwave generation, explosive generators, and electric space propulsion engines.
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Pulsed Power research at Texas Tech University began in the early 70’s with studies in high beta, controlled thermonuclear fusion. These initial investigations at
Texas Tech, along with other developments in the field, established the need for a
better understanding of the physical phenomena of pulsed power technology. The program is interdisciplinary and involves
faculty members from several academic departments.
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in-situ Plasma Cleaning
Explosive pulsed power research at Texas Tech was started in 1998. It emphasizes Magnetic Flux Compression Generators
and techniques for matching their outputs to various loads. Other explosive generators, such as ferroelectric and ferromagnetic generators have also been investigated.
The area of pulsed power research involves storing, shaping, transmitting,
and measuring high voltage, high current pulses of electrical energy. This is
of importance to many application areas, such as laser drivers, high power
microwave generators, particle accelerators, nuclear fusion, nuclear weapons effects and lightning simulations, industrial manufacturing technology, and
electromagnetic mass drivers. The voltages and currents involved may be in
the MV and MA range and time scales may be as short as the sub-nanosecond regime. This calls for extremely difficult and challenging materials, shielding, and measuring techniques. High power (> 100 MW) microwave source
development is an important area for military applications. Power Electronics
involves high efficiency power supply designs, rotating machines, and special,
high power solid state circuit designs.
180 nm - 2.6 μm Laser System
The Plasma, Power Electronics, and Pulsed Power Group at Texas Tech consists of eight faculty members, with a wide range of expertise, from the departments of ECE, ME, and Physics, an average of 25 graduate students, and 15 undergraduate student assistants. The
clerical and technical-support-staff comprise four research engineers, one machinist, two technicians, one accountant, and
one administrative business assistant.
For further information about the plasma, power electronics, and pulsed power program at Texas Tech, contact any of the
following faculty members. (Investigator and Research Area listed)
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The University
Texas Tech University, founded in 1923, is a state-supported, coeducational institution and one of the principal institutions of
higher learning in the Southwest. Texas Tech University prides itself
on being a major comprehensive research university that retains the
sense of a smaller liberal arts institution. Although enrollment is over
30,000, Texas Tech students boast of one-on-one interaction with
top faculty and an environment that stresses student accomplishment above all else. We’re large enough to provide the best in facilities and academics, but small enough to focus on YOU. Texas Tech
students come from every county in Texas, all 50 states and more
than 90 foreign countries. Tech offers 150 undergraduate degree
Texas Tech University Seal
programs through 11 academic colleges, a graduate school and a
school of law. We offer more than 100 master’s degree programs
and over 50 doctoral degree programs. The Texas Tech University Health Sciences Center includes a School of Medicine
with its Graduate School of Biomedical Sciences, a School of Nursing, and a School of Allied Health.
The Department of Electrical and Computer Engineering (ECE) has rapidly expanded and developed its graduate programs
over the past decade and currently has 24 faculty members, approximately 450 undergraduates, and 75 graduate students.
Thirty years ago, the annual research funding was $46,000 and has increased to an average of about $6,000,000.
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The Department of Physics offers M.S. degrees in Applied Physics in addition to the traditional degrees. Applied Physics
majors can do research in Pulsed Power and take courses in Electrical Engineering. The major Professor can be from
Physics or ECE.
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S. B. Bayne (ECE)
Texas Tech University, Lubbock Texas
Faculty
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J. C. Dickens (ECE)
Co-Director
(806) 742-0526
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(806) 742-1255
E-mail: [email protected]
Power Semiconductor Devices, Power Electronics,
High Power Microwaves and Renewable Energy
Power Electronics, Aerospace Electronics, Electric
Space Propulsion and Pulsed Power Technology,
High Efficency Power Processing, High Power Solid
State Lasers and Power Electronics, Explosive
Pulsed Power, and Microwave Communication
Systems.
M. Giesselmann (ECE)
Department Chair
L. L. Hatfield (Physics)
(806) 742-3462
(806) 742-1256
E-mail: [email protected]
E-mail: [email protected]
Power Electronics, Rotating Machines, Utility Power
systems, Gas Discharges, Electrical and Optical
diagnostics, H.V. Measuring Techniques, High
Power Switching
Surface Physics, Atomic Physics, Electrical Space
Propulsion, Dielectrics, High Voltage Insulators,
High Power Microwaves
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E-mail: [email protected]
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H. Krompholz
(ECE / Physics)
(806) 742-2224
(806) 742-1251
E-mail: [email protected]
E-mail: [email protected]
Plasma Dynamics, High Power Switching, Gas Discharges, Electrode and Insulator Properties, High
Power Microwaves, Electrical Space Propulsion,
Industrial Applications, Explosive Generators
Plasma Physics, Gas Discharges, Dielectric
Surface Flashover, High Speed Diagnostics, High
Power Microwaves, Breakdown in Gases, Liquids
and Solids
J. J. Mankowski (ECE)
A. A. Neuber (ECE)
Co-Director
(806) 742-3441
(806) 742-1250
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M. Kristiansen
(ECE / Physics)
E-mail: [email protected]
HPM Sources, Pulse Forming Networks, Liquid
Breakdown, Electric Space Propulsion, Pulsed
Power Technology
Dielectric Breakdown of Gases, Liquids, and
Surfaces in Vacuum and at Elevated Pressure
(Cryogenic to Room Temperature) Under Pulsed
DC or HPM Fields, Explosive Driven Pulsed Power,
High Power Microwaves, High Voltage Insulation,
Low Temperature Plasmas
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E-mail: [email protected]
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The Center for Pulsed Power and Power Electronics
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Visiting & Adjunct Faculty / Researchers
C. H. Watson-Munro, Univ. of Sydney, 1971
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Arndt Eberhagen, Max Planck Institut fur Plasma Physik
at Garching near Munich, 1972 and 1973.
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F. J. Paoloni, Univ. of Sydney, 1973.
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Karl I. Selin, Royal Institute of Technology, Stockholm,
1973 and 1974.
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K. Ikuta, Nagoya Plasma Physics laboratory, Nagoya,
Japan, 1985 and 1986.
Shinsuke Watanabe, Yokohama National University,
Yokohama, Japan, 1992.
Toru Iwao, Tokyo University, Tokyo, Japan, 2000.
W. Baker, (Adjunct Professor), Air Force Phillips
Laboratory, Albuquerque, NM., 1988-1993.
Weihua Jiang, Nagaoka University of Technology,
Nagaoka, Niigata, Japan, 1992, 1998-99, and 2000.
Bogdan Miedzinski, Technical University of Wroclaw,
Poland, 1978 and 1979.
Thomas Muller, Deutsche Forchungsgemeinschaft, Bonn,
Germany, 1993-94.
Alan Watson, University of Windsor, Canada, 1979, 1985,
and 1986.
Kevin Woolverton, Intel, 2000.
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A. H. Guenther, (Adjunct Professor), Kirtland Air Force
Base, Los Alamos National Laboratory, and Sandia
National Laboratories, Univ. of New Mexico 1974-1989.
Boy Blackwell, Univ. of Sydney, 1980.
John Fletcher, School of Physical Sciences, The Flinders
University of South Australia, 1982.
Jean-Pierre Boeuf, Laboratoire de Physique des
Discharges, Ecole Superieure d’Electricite, France, 1982.
Frank Rose, (Adjunct Professor), Naval Surface Weapons
Center, Dahlgren, Virginia, 1984 and 1986.
Takao Namihira, Kumamoto University, Japan, 2003-04.
Douyan Wang, Kumamoto University, Japan, 2003 and
2004.
Euan Choi, Kwangwoon University, Seoul, South Korea,
2004.
Han-Yong Ryu, Agency for Defense Development, South
Korea, 2005.
Klaus Frank, Erlangen University, Erlangen, Germany,
2007, 2008, and 2009.
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H. Akiyama, Kumamoto University, Kumamoto, Japan,
1984 and 1986.
Jian De Zhang, National University of Defense Technology,
Changsha, Hunan, China, 2002.
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Large High-Bay Laboratory
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Texas Tech University, Lubbock Texas
The P3E Center at a Glance
Research Areas
•Electrical Space Propulsion Devices
•Breakdown in Liquids and Solids
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•Industrial
Applications of
Pulsed Power
Technology
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Graduate Studies
Numerous grants and contracts support a variety of
research that provides opportunities for graduate students
to interact with prominent researchers in industry and at
national laboratories. These associations are valuable to
the research in progress
and the long-term benefits
are inestimable. Financial
support ($2,200 - $2,600
per month) for graduate
study is for the most part
obtained from Research
Assistantships and Graduate
Fellowships. All supported
students pay in-state tuition
and most of the tuition and
fees are provided.
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•Various Novel
Switch Concepts
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•The Interaction
of Arc Channels
with Electrodes
and Insulators
•High Power
Microwave
Studies
•The Surface
Physics of
Insulators
•Solid State Power Electronics
•Erosion Resistant Materials for Space Propulsion
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The Pulsed Power and
Power Electronics Research
Program at Texas Tech
University has generated
approximately 100 theses
HPM Flashover Studies
and dissertations over the
past ten years. Plasma,
Power Electronics and Pulsed Power related graduate
courses offered in the ECE Department include:
•Electromagnetic Field Theory
•Sub-nanosecond Pulsed Gas Breakdown
•Pulsed Power Technology
•Explosive Driven Pulsed Power
•Gaseous Electronics
•Non-Equilibrium Plasmas
•High Power Microwave Sources
•Pulsed Vacuum UV Generation
•Plasma Engineering
•Corona Formation and Mitigation
•Laser Spectroscopy
•Circuit And Rotating Machine Modelling
•Power Electronics
•Electromagnetic Launchers
•Machine Modelling and Control
Laboratories and Support facilities
A new Electrical Engineering research building, largely devoted to pulsed power related research was
completed in 1980. Today, after the addition of a high bay laboratory space in 1999, the P3E Center occupies
a total floor area of over 15,000 square feet. Additional space of 12,000 square feet is used in the off-campus
research building.
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Off Campus Research Facility
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The Center for Pulsed Power and Power Electronics
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Equipment and Facilities
Computer Processing Capabilities
The computer resources available in the Pulsed Power
Laboratory include several state-of-the art MPS workstations,
high-end 3-D graphics coprocessors and high-speed
network connections. Also available in the lab are various
workstation class PC’s, color and black & white printers,
scanners, image converter cameras, mega-pixel SLR digital
cameras and MS Windows domain servers with redundant
hard drives and domain backup servers.
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Like the hardware, an
impressive list of software
is available in the Center.
This
software
includes
professional versions of
OrCad PSpice, Synopsys
Saber, Simplore (high-end
circuit solvers), Maxwell 3-D
(electro and magneto static
Dell PowerEdge Network / eddy current field solver),
Servers
Ansoft HFSS (3-D electromagnetic
field
solver),
Matlab (technical programming language), Autodyn 3-D
(interactive non-linear dynamic and hydro-dynamic analysis
software), CTH 3-D hydrodynamic code and COMSOL (finite
element method for solving systems of partial differential
equations).
In addition to its own computing facilities, the Pulsed Power
Laboratory has access to the university’s High Performance
Computing Center (HPCC) which houses several hundred
Intel computer nodes on several clusters and grid servers
with data stored on large Luster file systems.
Equipment and Facilities
A representative sample of the equipment and facilities
available for research includes:
•Pulsed high voltage, high current diagnostic equipment
including conventional probes and optical detectors of
electric fields
•Fast Oscilloscopes
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•Image converter streak and framing cameras with
picosecond or nanosecond temporal resolution
•High voltage, high
power loads
•Residual gas
analyzers
•Spectroradiometer
•Microwave
equipment
•Rotating prism
and mirror framing
cameras
Haas VF-3
•Numerous vacuum stations
•Microwave Interferometers
•Magnetic coil systems and
associated power supplies
•Various large vacuum tanks
•FT IR-Spectrometer
•Closed cycle refrigeration
system
16 GHz Agilent infiniium Oscilloscope
•Fluorescence detection
system for CW and transient measurements
•Programmable pico-ammeter and voltage sources
•High potential testers
•Febetron flash x-ray, 300 keV
•OMA systems for VUV-UV-VIS-NIR spectroscopy
•Multiple explosive chambers
•Numerous high
voltage D.C. power
supplies
•Space simulation chamber
4 Million Frames per Second
Digital Framing Camera
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•Line pulsers and PFN’s
•Pulsed and CW lasers with a wide range of wavelengths
and power outputs
•High power microwave equipment
•Numerous spark gaps,
rail gaps, ignitrons,
thyratrons and solid
state switches
•Marx generators (up
to 2 MV)
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•Laboratory power capability: 500 kVA single outlet; 1MVA
total
•Dimension SST 1200es 3-D
printer
•Class 100,000 (ISO8) clean
room
•Haas TL-1 tool room lathe
•Haas TM-1 tool room mill
•Haas GR-510 Gantry router
•Double wall Faraday cages
•Haas VF-3 vertical machining
center w/ 4th axis
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•Optical equipment, detectors and spectrometers
500oC Bakeout
Oven
•26 foot shielded mobile diagnostic trailer
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•Scanning electron and optical microscopes
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Texas Tech University, Lubbock Texas
Journal Publications
Journal Publications (2011 - May 2013)
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•“Reliable Operation of SiC JFET Subjected to Over 2.4
Million 1,200-V/115-A Hard Switching Events at 150 °C,”
IEEE Electron Device Letters, 2013
•“Material selection considerations for coaxial,
ferrimagnetic-based nonlinear transmission lines,”
Journal of Applied Physics, 2013
•“All solid-state high power microwave source with high
repetition frequency,” Review of Scientific Instruments,
2013
•“Ferromagnetic Nonlinear Transmission Lines as High
Power Microwave
Source,” IEEE
Transactions on
Plasma Science, 2013
•“Light Emission
From CsI-Coated
Carbon Velvet
Cathodes Under
Varied Conditions,”
IEEE Transactions on
Plasma Science, 2012
•“Electric Field Enhanced Conductivity in Strongly
Coupled Dense Metal Plasma,” Physics of Plasmas,
2012
•“The Impact of Wire Environment on Electro-Explosive
Fuse Performance,” IEEE Transactions on Plasma
Science, 2012
•“Shallow
Incorporation of
Nitrogen in HPSI
4H-SiC through the
Laser Enhanced
Diffusion Process,”
2012 Materials
Science Forum
Plasma Arcjet for Soil
•“Operation of a
Stabilization
Sealed-TubeVircator HighPower-Microwave Source,” IEEE Transactions on
Plasma Science, 2012
•“Hard-Switch Stressing of Vertical-Channel ImplantedGate SiC JFETs,” IEEE Electron Device Letters, 2012
•“Reliable Operation of 1,200-V SiC Vertical JunctionField-Effect-Transistor Subjected to 16,000-Pulse Hard
Switching Stressing,” Materials Science Forum, 2012
•“Avalanche Breakdown Energy in Silicon Carbide
Junction Field Effect Transistors,” 2012 Materials
Science Forum
•“Experimental and Theoretical Evaluation of Surface
Coated Exploding Wires,” Physics of Plasmas, 2012
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•“Characterization of Annealed HPSI 4H-SiC for
Photoconductive Semiconductor Switches,” Materials
Science Forum, 2012
•“Evaluation of High
Power Experimental
SiC SGTO Devices
for Pulsed Power
Applications,”
Materials Science
Forum, 2012
Mobile Diagnostic Trailor
•“Optical emission
spectroscopy study
in the VUV-VIS regimes of a developing low-temperature
plasma in nitrogen gas,” Journal of Applied Physics D,
2012
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1,000 oC Brazing Oven
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•“Design and testing
of multi-standard
waveguide couplers,”
Review of Scientific
Instruments, 2012
•“Charged Electret Deposition for the manipulation of
High Power Microwave Flashover Delay Times,” Physics
of Plasmas, 2012
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Class 100,000 ISO8 Clean
•“Nonlinear
Room
transmission line
performance under
various magnetic bias environments,” Journal of Directed
Energy, 2013
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•“Simultaneous Measurement of Nitrogen and Hydrogen
Dissociation from
Vacuum Ultraviolet
Self-Absorption
Spectroscopy
in a Developing
Low Temperature
Plasma at
Atmospheric
Pressure,” Applied
Physics Letters,
2013
•“A finite-difference
time-domain
simulation of high
HPM Vircator Research
power microwave
generated plasma
at atmospheric pressure,” Physics of Plasmas, 2012
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•“High Temperature Unclamped Inductive Switching Mode
Evaluation of SiC JFET,” IEEE Electron Device Letters,
2013
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•“A compact 45 kV curve tracer with picoampere
current measurement capability,” Review of Scientific
Instruments, 2013
•“Exploding Wire
Experiments and
Theory for Metal
Conductivity
Evaluation in the
Sub-eV Regime,”
Phys. Review E,
2012
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Journal Pubilications
•“Investigation of the delay time distribution of high power
microwave surface flashover,” Physics of Plasmas, 2011
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•“Imaging of Pressure-Dependent High Power Microwave
Surface Flashover,” IEEE Transactions on Plasma
Science, 2011
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“Rapid formation
of dielectric surface
flashover due to
pulsed high power
microwave excitation,”
IEEE Transactions on
Dielectric and Electrical
Insulation, 2011
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“Statistical
analysis of high power
microwave breakdown
surface flashover delay
times in nitrogen with metallic field enhancements,”
Physics of Plasmas, 2011
HAAS TM-1
•“Relating Physics of Electret Charging using Vacuum UV
Photo-Ionization
to Seed Electron
Production
during High
Altitude Plasma
Breakdown,” IEEE
Electrical Insulation
Magazine, 2011
•“Spatially Resolved
Vacuum UV
45 kV Compact Curve Tracer
Spectral Imaging of
Pulsed Atmospheric
Flashover,” IEEE Transactions on Plasma Science, 2011
•“Phenomenology of Streamer Propagation during Pulsed
Dielectric Surface Flashover,” IEEE Transactions on
Dielectrics and Electrical Insulation, 2011
Conference Proceedings (2011 - May 2013)
•“Bias Field Controlled Phasing of Ferrimagnetic Coaxial
Nonlinear Transmission Lines,” 2013 Pulsed Power
Conference
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•“Current Capabilities of a Low Inductance Marx
Generator for Driving a High Power Microwave Source,”
2013 Pulsed Power Conference
•“Burst Mode Operation of > 100 MW Reflex Triode
Vircator,” 2013 Pulsed Power Conference
•“Performance of NEG Getter Material in a Sealed
Reflex-Triode Vircator at 225 A/cm2,” 2013 Pulsed Power
Conference
•“Frequency Tunable
Sealed Tube Reflex
Triode Vircator,”
2013 Pulsed Power
Conference
•“Pulsed Power Switching
of 4H-SiC Vertical
D-MOSFET and Device
Characterization,”
2013 Pulsed Power
Conference
•“Post Pulse Recovery of
HPM Generated Plasma
at Close to Atmospheric
Pressure,” 2013 Pulsed
Power Conference
Explosives Chamber
SiC JFET Testing Under
Extreme Conditions
•“Study of LowTemperature Plasma
Development Utilizing a GPU-Implemented 3D PIC/MCC
Simulation,” 2013 Pulsed Power Conference
•“Selective Electron Beam Irradiation of High Purity SemiInsulating 4H Silicon Carbide Substrates to Characterize
the Effects on Photoconductive Semiconductor Switch
Operation,” 2013 Pulsed Power Conference
•“Microwave Radiation from a SiC PCSS Driven
Gyromagnetic NLTL,” 2013 Pulsed Power Conference
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•“A High-Power
Transient Coaxial
Power Combiner
for Nonlinear
Transmission Lines,”
2013 Pulsed Power
Conference
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•“High Voltage Solid Dielectric Coaxial Ferrimagnetic
Nonlinear Transmission Line,” 2013 Pulsed Power
Conference
•“Rapid Capacitor Charger and Battery System for
Portable Pulsed Power Applications,” 2013 Pulsed
Power Conference
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•“Design and evaluation of a compact silicon carbide
photoconductive semiconductor switch,” IEEE
Transactions on Electron Devices, 2011
SEM Imaging of HPM
Carbon Fiber Cathodes
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Conference Proceedings
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•“Performance and Characterization of a 20 kV, Contact
Face Illuminated, Silicon Carbide Photoconductive
Semiconductor Switch for Pulsed Power Applications,”
2013 Pulsed Power Conference
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•“An Experimental System for the Measurement of
Vacuum UV below 115 nm from Pulsed Plasma in an N2/
O2 Environment,” 2013 Pulsed Power Conference
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•“A Passive Method for Determining Plasma
Dissociation Degree Using Vacuum UV Self-Absorption
Spectroscopy,” 2013 Pulsed Power Conference
•“Design of an Advanced Modular Automated Evaluation
System for Experimental High Power Si and SiC
SGTOs,” 2013 Pulsed Power Conference
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•“Hydrodynamic and Magnetohydrodynamic Modeling
in-situ VUV Studies
•“Experimentation and Simulation of High Current
Density Surface Coated Electro-Explosive Fuses”, 2012
IEEE International Power Modulator and High Voltage
Conference
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•“A 50 kV Silicon Carbide Photoconductive Switch for
Pulsed Power Systems”, 2012 Euro-Asian Pulsed Power
Conference
•“Fiber Optic System for High Frequency Burst Operation
of a Silicon Carbide Photoconductive Semiconductor
Switch,” 2012 IEEE International Power Modulators and
High Voltage Conference
Compact HPM Reflex-Triode
Virtual Cathode Oscillator
of Exploding Wires in Opening Switch Type Operation,”
2013 Pulsed Power Conference
•“Electro-Thermal Transient Simulation of Silicon Carbide
Power Mosfet,” 2013 Pulsed Power Conference
•“The Effects of
Sub-Contact
Nitrogen Doping
on Silicon Carbide
Photoconductive
Semiconductor
Switches,” 2012 IEEE
International Power
Modulators and High
Voltage Conference
HAAS GR-510
•“Development and Characterization of a Pulsed Micro
Hollow Cathode Discharge Array,” 2013 Pulsed Power
Conference
•“Experiments of Vacuum UV Absorption during LowTemperature Plasma Formation at Atmospheric
Pressure,” 39th IEEE International Conference on
Plasma Science, 2012
•“Comparison of CsI coated Carbon Velvet and Aluminum
Cathodes Operated at Current Density on the order of
300 A/cm2,” 2012 IEEE International Power Modulator
and High Voltage Conference
•“A Photoconductive-Switched Nonlinear Transmission
Line for Use as a Compact, MW-Class High Power
Microwave System,” 2012 Euro-Asian Pulsed Power
Conference
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•“Anode Material
Outgassing at 250
A/cm2 Current
Density Under UHV
Conditions,” 2012
IEEE International
Conference on
Plasma Science
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SiC Photoconductive Switches
Electron Explosive Emission
•“Gas Evolution of
Nickel, Stainless
Studies of HPM Anodes
Steel 316, and
Titanium Anodes in Vacuum Sealed Tubes,” 2012
IEEE International Power Modulators and High Voltage
Conference
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Conference Proceedings
•“A Compact, Phaseable MW-Class High Power
Microwave System Using an Integrated Photoconductive
Switch and Nonlinear Transmission Line,” 2012 IEEE
International Power Modulators and High Voltage
Conference
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•“Nanosecond-Scale Spectroscopy of Vacuum Ultraviolet
Emission from Pulsed Atmospheric Discharges,”2011
Pulsed Power Conference
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•”Laser enhanced diffusion of nitrogen in high purity semiinsulating 4H silicon carbide substrates for non-rectifying
contact formation to photoconductive semiconductor
switches,” 2011 Pulsed Power Conference
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•“Design of an Automated Test Bed for Experimental Si
and SiC SGTO Devices,” 2012 IEEE International Power
Modulators and High Voltage Conference
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•“Investigation of Vacuum Ultraviolet Emission and
Absorption during Pulsed Surface Flashover along
Dielectric Interfaces,” 15th Annual Directed Energy
Symposium, 2012
•“Microwave Optical Guide Star: A Tool for Correcting
Atmospheric Aberration,” 11th Directed Energy Test and
Evaluation Conference, 2012
•“Recent Experiments of Vacuum UV Emission and
Absorption during Pulsed Atmospheric Breakdown,”
2012 European Electromagnetics Symposium
•“Simulation of an Exploding Wire Opening Switch”,
2012 IEEE International Megagauss Magnetic Field
Generation and Related Topics Conference “
Reflex-Triode Vircator HPM Source
•Analysis of SiC Super Junction Transistors during pulsed
operation,” 2011 IEEE Pulsed Power Conference
•“Analysis of SiC JFET devices during pulsed operation,”
2011 IEEE Pulsed Power Conference
•“Evaluation of experimental Silicon SGTO devices for
Pulsed Power Applications,” 2011 IEEE Pulsed Power
Conference
•“Design of a diagnostic system for use in optical and
VUV spectroscopy of explosive emission,” 2011 IEEE
Pulsed Power Conference
•“Exploration of Self-Produced Vacuum Ultraviolet
Radiation from Dielectric Surface Flashover at
Atmospheric Pressure,” 2011 IEEE Conference on
Electrical Insulation and Dielectric Phenomena
Exploding Wire Testing
•“Study of Self-Absorbed Vacuum Ultraviolet Radiation
during Pulsed Atmospheric Breakdown in Air,” 64th
Gaseous Electronics Conference, 2011
•“Recombination lifetime modification in bulk, semiinsulating 4H-SiC photoconductive switches,” 2011 IEEE
Pulsed Power Conference
HPM Cathode DC Plasma Discharge Cleaning
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•“Unique high energy test bed for experimental thyristor
devices,” 2011 IEEE Pulsed Power Conference
•“Diagnostic measurements on explosive emission
cathodes operating at high current densities and UHV
pressures,” 2011 Pulsed Power Conference
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•“Physics Investigations of Vacuum Ultraviolet Emission
from Pulsed Atmospheric Discharges,” 2011 IEEE
International Conference on Plasma Science
Compact PFN Marx Generator
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Texas Tech University, Lubbock Texas
Research Projects
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Rapid Capacitor Chargers
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High Voltage SiC Switch Testbed
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Advanced Large Area Cathode Preparation
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Faculty, Staff and Students
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