Technical Papers

This page provides a single location to browse through many of DTI's technical papers. As we publish new technical documents they will be included here with links on the appropriate application pages. Click on the paper's title or on the icon at the end of the description to view and download a copy of the document in PDF format. Paper topics include radar, high energy physics, power conversion, pulsed electric field processing, and plasma ion implantation. Be sure to browse our product information page for additional documents on these topics.

Radar

Switch Tube Test Set_(2013) - A three page paper, describing the development of a triode test set contracted to DTI by BAE Systems. Presented at the 2013 IEEE International Pulsed Power & Plasma Science Conference. (722 kB)

Solid-State Transmitter for a 2 MW Klystron_(2012) - A three page paper, describing the structure of a transmitter system built and installed by DTI to support a 2 MW klystron. The transmitter consists of two HV power supplies, cap bank, modulator (opening switch) and controls. (751 kB)

Improving VED Transmitter Reliability (2009) - A two page paper describing the role of solid-state technology in improving the overall reliability of VED systems. (181 kB)

Solid-State Upgrade for the Cobra Judy S-Band Phased Array Radar (2006)- A five page paper describing DTI's new transmitter developed for the Cobra Judy S-Band radar. Presented at the 2006 IEEE Radar Conference. (409 kB)

High Performance Solid State Radar Modulators (2005) - A four page paper summarizing several of DTI's radar modulator upgrades. Presented at the 2005 Pulsed Power Conference. (700 kB)

Improvements in Radar Transmitter Performance and Reliability Using High Voltage Solid-State Modulators and Power Supplies (2002) - An eight page paper, presented at the IEEE Radar 2002 Conference, describing DTI's work in solid-state radar retrofits and new transmitters, and how DTI's technology can benefit a range of radar technologies. (349 kB)

Solid-State Radar Modulators (2001) - A four page paper describing the application of DTI's technology to the Navy's AN/SPG60 radar system and the Naval Research Laboratory's 94 GHz gyroklystron. The benefits of solid state technology are highlighted. This paper was presented at the 24th International Power Modulator Symposium 2001. (3.4 MB)

High Energy Physics

Pulsed Power Systems for ESS Klystrons (2016) - A two page technical paper describing DTI's long pulse modulator technology for the European Spallation Source (ESS) klystron testing. (323 kB)

Affordable, Short Pulse Marx Modulator (2015) - A three page paper describing the architecture of a 100 kV - 500 kV, 500 A, 0.2 - 5.0 µs risetime modulator based on a novel Marx bank design. Presented at the 2015 Particle Power Conference. (515 kB)

Pulsed High Power Amplifiers (2015) - A three page paper describing the architecture and development of two recent short pulse klystron modulators delivered by DTI to Daresbury Laboratory and Lawrence Berkeley National Laboratory. Presented at the 2015 Pacific Symposium on Pulsed Power. (635 kB)

A Stripline Kicker for the Next Generation Light Source (2015) - A four page paper describing the architecture of a kicker driver, based on specifications for the Next Generation Light Source injectors. Presented at the 2015 Pacific Symposium on Pulsed Power. (594 kB)

Thyratron Replacement (2015) - A two page paper describing DTI's efforts to design a form-fit-function replacement for the klystron modulator thyratrons at the Standford Linear Accelerator Center using solid-state transistors. Presented at the 2015 Pacific Symposium on Pulsed Power. (385 kB)

Robust High-Average-Power Modulator_(2013)- A two page paper, presented at the 2013 International Vacuum Electronics Conference, describing DTI's design for a long pulse modulator meeting the requirements of the European Spallation Source modulators, funded under a US DOE grant. (284 kB)

Solid-State Long Pulse Marx Modulator_(2012) - A three page paper, presented at the 2012 International Pulse Modulator High Voltage Conference, describing the implementation of the Marx topology to produce a long pulse modulator intended to be used as a test platform for International Linear Collider class klystrons. (579 kB)

Modular Multipurpose Amplifier (2010) - A two page paper presented at the 2010 International Vacuum Electronics Conference describing a cost-reduced RF amplifier design that can produce outputs at different frequencies by changing the output tube and drive amplifier, while retaining common power supplies, communication, and controls. (262 kB)

A Klystron Power System for the ISIS Front End Test Stand (2009) - A four page paper, presented at the 2009 Pulsed Power Conference, describing a DTI developed power system to drive a Toshiba E3740A klystron installed at the Rutherford Appleton Laboratory (UK) in December 2008. (134 kB)

Solid-State Tetrode Test Stand_(2009) - A three page paper describing a 500 kW DC test stand developed by DTI and installed at Burle Industries, Lancaster, PA in March 2009. The test stand is used to evaluate tetrodes for the Rutherford Appleton Laboratory's (UK) ISIS system. (139 kB) 

Marx Bank Technology for Accelerators and Colliders_(2008) A Four page paper describing DTI's work in developing long-pulse and short-pulse solid-state modulators suitable for a wide range of high energy applications. This paper was presented at the 2008 European Pulsed Power Conference. (100 kb)

Solid-State Modulators for the International Linear Collider (2006)-A three page paper describing DTI's "hard switch" and Marx bank topologies for modulators that can meet the requirements for the International Linear Collider. Paper was presented at the 2006 Power Modulator Conference. (163 kb)

A Solid-State 2 MW Klystron Power Control System (2005)-A four page technical paper describing the use of DTI's technology in the development of a solid-state opening switch. The switch is part of a complete klystron power supply system delivered to the Advanced Photon Source at Argonne National Lab. This paper was presented at the 2005 Particle Accelerator Conference. (196kb)

A 500 kV Power System for a Gridded Sheet Beam Klystron (2004) -Four page paper describing DTI's design of the power electronics for the sheet beam klystron at SLAC. The electronics include a 500 kV multiplier power supply, a 10 kV grid modulator, a multi-concentric high voltage cable and an advanced, re-entrant interface between the cable and the klystron. (579 kb)

A Review of Solid State Modulators_(2002) - This paper, written by E.G. Cook of Lawrence Livermore Laboratory, is a thorough review of the current state-of-the-art in solid state modulators. (201 kb)

Solid State Modulator for Klystron/Gyrotron Conditioning, Testing, and Operation (2000) - A four page technical paper describing the use of DTI's 140 kV, 500 A switch for testing of high voltage klystrons and gyrotrons. Presented at the 2000 International Power Modulator Symposium. (266 kb)

Solid-State Pulsed Power Systems (1998) - A four page technical paper describing the basics of DTI's high power, solid-state systems. Explains operation and benefits of our PowerMod™ line of modulators and power supplies. (340 kb)

Power Conversion

Undersea Medium Voltage DC (MVDC) Power Distribution System (2016) - A five page paper describing DTI's design of a high frequency DC-to-DC converter which takes MVDC from a shore station and down converts it to 375 VDC to power low voltage electronics on the ocean floor. This paper was presented at the 2016 American Society of Naval Engineers Day. (790 kb)

Components of Heating and Fueling of Fusion Plasmas (2013) - A four page paper describing DTI's efforts to design a 'Buck Matrix' modulator, intended to power and protect gyrotrons from arcing in next generation fusion facilities. Presented at the 2013 IEEE International Pulsed Power & Plasma Science Conference. (1.06 MB)

Solid State Circuit Breakers for Medium Voltage DC (MVDC) Power (2011) - A four page paper describing DTI's design of a rugged, efficient and compact solid-state 10-20 kV Medium Voltage DC circuit breaker. This paper was presented at the 2011 Electric Ship Technologies Symposium. (402 kb)

Solid State High Frequency Power Converters (2003) - A five page paper describing DTI's design of a compact, high frequency (60 Hz -400 Hz) solid state power conversion switch for use in several defense applications. (108 kb). This paper was presented at PES 2003.

Solid State High Voltage DC Power Distribution & Control (1999)-An eight page technical paper describing how high power, solid-state DC switches can provide lower cost, more efficient power distribution than traditional methods. A scenario for large scale power distribution to klystrons is presented. (948 kb)

A Solid State Switch for 13.8 kV Power Distribution (1999) - A ten page paper describing the application of DTI's high voltage switching technology to utility power distribution. (289 kb)

Pulsed Electric Field Processing (PEF)

Pulsed Electric Fields for Algal Extraction and Predator Control (2016) - A sixteen page chapter appearing in the continuously updated edition of the Handbook of Electroporation. This chapter describes the progress towards PEF for extraction and predator control in microalgae cultures.  (604 kb)

Removing Barriers to Commercialization or PEF Systems and Processes (2016) - A six page paper describing the barriers to commercial adoption of pulsed electric fields for the sterilization of foods. Presented at 3rd School on Pulsed Electric Field Processing of Food, March. (576 kb)

Improving Food Quality with Novel Food Processing Technologies (2014) - A book purchasable online in which DTI which has written a chapter explaining the details of pulsed electric field processing.

Enhancing Industrial Processes by Pulsed Electric Fields (2012) - A four page paper describing the application of large scale pulsed electric fields to the sterilization of foods, treatment of wastewater and extraction processes. Presented at the 2012 Euro-Asian Pulsed Power Conference. (239 kb)

Scaleup of PEF Systems for Food and Waste Streams (2006) - A four page paper describing the application of large scale pulsed electric fields to the sterilization of foods and treatment of wastewater. Presented at the 3rd Innovative Food Centre Conference, October 2006. (140 kb)

Pulsed Electric Field Processing (2006)-A two page article appearing in the January 2006 issue of Food Technology magazine provides an overview of the current status of PEF processing. .You can read more about food technology at the website of the Institute of Food Technologists or by purchasing the book Case Studies in Novel Food Processing Technologies: Innovations in Processing, Packaging, and Predictive Modeling , in which DTI has written a chapter explaining the details of pulsed electric field processing.

Solid-State Power Systems for Pulsed Electric Field Processing (2005) - A four page paper presented at the 2005 Pulsed Power Conference describing pulsed electric field processing systems, including their pulsed power electronics and treatment chambers. (574 kb)

Pulsed Power Systems for Food and Wastewater Processing (2002)-A four page paper presented at the 2002 European Pulsed Power Conference describing the use of Pulsed Electric Fields in the sterilization of liquid foods and bacterial reduction in wastewater. (387 kb)

Plasma Ion Immersion Implantation (PIII)

Solid-State Modulators For PIII Applications (1998)-A fourteen page color technical paper detailing use of DTI systems in Plasma Ion Implantation Systems. Includes discussion of the high power variables affecting the design of these systems. (267kb)

Additional Modulator Applications

Fast Pulser for High-Altitude Ignition Research (2011) - A four page technical paper presented at the 2011 Pulsed Power Conference describing the use of a fast ignition pulser designed to reignite jet engines that flame out at high altitude. (150 kb)