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Dissertations / Theses on the topic 'Electrical breakdown'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Torres, Jean-Marc. "Electrical breakdown at micrometre separations." Thesis, Heriot-Watt University, 2002. http://hdl.handle.net/10399/447.

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2

Laihonen, Sari J. "Polypropylene : Morphology, defects and electrical breakdown." Doctoral thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-268.

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3

Gehman, Victor H. "Impulse electrical breakdown of high-purity water." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06062008-162624/.

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4

Bhanu, Udai. "Investigation of Breakdown Power During Electrical Breakdown of Aligned Array of Carbon Nanotubes." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5127.

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Massively parallel arrays of single walled carbon nanotubes (SWNT) have attracted significant research interests because of their ability to (i) average out inhomogeneities of individual SWNTs, (ii) provide larger on currents, and (iii) reduce noise to provide higher cutoff frequency for radio frequency applications. However, the array contains both metallic and semiconducting SWNTs and the presence of metallic nanotube in an aligned array negatively affects the device properties. Therefore, it is essential to selectively remove metallic nanotubes to obtain better transistor properties. It was

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5

Tremas, Laure. "Pre-breakdown and breakdown phenomena in air along insulating solids." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAT117.

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Compréhension et maîtrise des phénomènes intervenant sous haute tension à l'interface entre un gaz et un isolant solide.Dans le cadre du remplacement du SF6 dans les appareils moyenne tension, une étude de l’isolation électrique mixte (gaz (air) / solide isolant) a été réalisée. L’objectif étant de déterminer l’influence de la nature du solide sur la tenue au claquage. Pour cela plusieurs matériaux ont été sélectionnés tel que l’époxy / silice (matériau de référence chez Schneider Electric), le PA6T/66.GF50 (nouveau matériau pour cette application) ainsi que plusieurs autre matériaux permettan

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6

Polynkin, Pavel. "Multi-pulse scheme for laser-guided electrical breakdown of air." AMER INST PHYSICS, 2017. http://hdl.handle.net/10150/626071.

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Channeling an extended electrical breakdown of air by a laser beam is a long-standing challenge in applied laser science. Virtually all previously reported experiments on discharge channeling by femtosecond laser beams relied on the application of a single laser pulse and have been conducted with discharge gaps of less than one meter, in which case the direct ohmic heating of the laser-generated plasma by the applied DC electric field is the dominant channeling mechanism. We report a laboratory-scale demonstration of a channeling approach that makes use of concatenated plasma filaments produce

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7

Rees, Caroline Susan. "Electrical conduction and dielectric breakdown in the heavy metal azides." Thesis, University of Cambridge, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280434.

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8

MacGregor, Scott John. "Electrical breakdown in SFâ†6 and SFâ†6/air mixtures." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.386581.

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9

Kouadria, Djilali. "The ageing and breakdown characteristics of electrical machine insulation materials." Thesis, University of Brighton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264002.

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10

Arumilli, Gautham Venkat. "RF breakdown effects in microwave power amplifiers." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/45612.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 95-98).<br>Electrical stresses in the transistors of high-efficiency switching power amplifiers can lead to hot-electron-induced "breakdown" in these devices. This thesis explores issues related to breakdown in the Transcom TC2571 PHEMT, and the effects this has on the Draper Laboratory 2.

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11

Dodd, Stephen John. "Electrical breakdown and structural characterization in synthetic resins using optical techniques." Thesis, London Metropolitan University, 1992. http://repository.londonmet.ac.uk/3389/.

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As part of a National Power/National Grid funded collaborative project on electrical breakdown in synthetic resins, various non-evasive optical techniques were developed to quantitatively characterise resin microstructure and residual internal mechanical (RIMS) and to study the physical processes occurring during electrical tree initiation and tree growth in the pin-plane geometry. Light scattering measurements have been used to determine the origins and magnitudes of the microstructure content (MC) of the Epoxy (CT200) and unsaturated polyester rains, and in conjunction with FTIR spectroscopy

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12

Coaker, Brian M. "Mechanisms for triggering high-voltage breakdown in vacuum." Thesis, Aston University, 1995. http://publications.aston.ac.uk/8236/.

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The electrical and optical characteristics of a cylindrical alumina insulator (94% Al203) have been measured under ultra-high vacuum (P < 10-8 mBar) conditions. A high-resolution CCD camera was used to make real-time optical recordings of DC prebreakdown luminescence from the ceramic, under conditions where DC current magnitudes were limited to less than 50μA. Two concentric metallized rings formed a pair of co-axial electrodes, on the end-face of the alumina tube; a third 'transparent' electrode was employed to study the effect of an orthogonal electric field upon the radial conduction proces

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13

Lipham, Mark Lawrence Kirkici Hulya. "Electrical breakdown studies of partial pressure argon under Khz range pulse voltages." Auburn, Ala., 2010. http://hdl.handle.net/10415/2044.

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14

Hasan, Samil Mukhlisin Yauma 1967. "Neutron irradiation effects on the breakdown voltage of power MOSFETs." Thesis, The University of Arizona, 1993. http://hdl.handle.net/10150/278361.

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The effect of neutron irradiation on power metal-oxide-semiconductor field effect transistors (power MOSFETs) breakdown voltage has been investigated. Power MOSFETs of both n- and p-channel with manufacturer's rated breakdown voltage between 100 to 500V were radiated up to accumulated neutron fluence of 5x10¹⁴ neutron/cm² Considerable increase in the breakdown voltages were observed in n-type MOSFETs after 10¹³ neutron/cm² and to p-type MOSFETs after 10¹² neutron/cm² The increase in breakdown voltages is due to the decrease in the mean free path caused by the neutron-irradiation-induced defect

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15

Li, Xiaoyong. "Added CFO voltages from fiberglass poles and its electrical degradation." Master's thesis, Mississippi State : Mississippi State University, 2001. http://library.msstate.edu/etd/show.asp?etd=etd-11092001-113706.

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16

Watts, Frank. "The effect of electrical potential on mass transfer in liquid-liquid extraction." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/10283.

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17

Meng, Wentao. "Simulation Studies of High Breakdown-Voltage GaN and β-Ga2O3 Vertical Device". The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu155558352423293.

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18

Jadidian, Jouya. "Charge transport and breakdown physics in liquid/solid insulation systems." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82178.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2013.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 223-230).<br>Liquid dielectrics provide superior electrical breakdown strength and heat transfer capability, especially when used in combination with liquid-immersed solid dielectrics. Over the past half-century, there has been exte

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19

Johnson, Charlene Cara 1966. "Effects of RCA cleaning upon breakdown voltages of thin gate oxides." Thesis, The University of Arizona, 1991. http://hdl.handle.net/10150/277835.

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The purpose of this thesis was to investigate the effects of pre- and post-oxidation RCA cleaning on thin gate oxides through the study of breakdown voltages at several current levels. The RCA Clean consisted of SC1 (NH₄OH in H₂O₂), followed by an optional dilute HF dip, followed by SC2 (HCl in H₂O₂). SAS analysis of the experiments revealed the following results: an HF dip was not found to affect the performance of the pre-oxidation clean, SC2 was harmful to the oxide when performed after oxide growth, and the role of solution age was not clear. In addition, an interaction was found between S

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20

Wang, Mengguang. "The electrical breakdown characteristics of oil/paper insulation under fast front impulse voltages." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30108.

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Gas Insulated Substation (GIS) and Gas Insulated Transmission Line (GITL) have found broad application in power system over the last twenty years. Disconnect switch operations in this equipment causes transient voltages with rise times as fast as 5 to 20 nanoseconds and magnitudes as high as 2.5 pu. There is very little information on the effect of these transients on oil/paper insulated equipment connected to the GIS and GITL. There have been reports of transformer and bushing failures which may have been caused by these transients. In the investigation reported in this thesis, the electrica

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21

Chen, Kevin M. (Kevin Ming) 1974. "Electrical breakdown and luminescence from erbium oxide and Er-doped silicon thin films." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/9816.

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22

Saxén, Carl. "A µCT Investigation of the Electrical Breakdown Mechanisms in Mica/Epoxy Machine Insulation." Thesis, Uppsala universitet, Tillämpad mekanik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-326170.

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Mica/Epoxy machine insulation is a composite material of the mineral mica, fibre-glass mesh and epoxy resin. The material is used in motors and generators rated for high voltage, where the material must withstand multiple stresses such as elevated temperatures, mechanical and electrical stresses. This is a novel investigation that focuses on the breakdown mechanisms related to electrical stress of the insulation. These include partial discharges and electrical treeing. The micro Computed Tomography (μCT) uses a series of X-ray images to visualise the interior. This provides a method for non-in

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23

Hourdakis, Emmanouel Spyros. "Electrical measurements at the micro scale air breakdown and si coulomb blockard devices /." College Park, Md.: University of Maryland, 2007. http://hdl.handle.net/1903/7619.

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Thesis (Ph. D.) -- University of Maryland, College Park, 2007.<br>Thesis research directed by: Dept. of Physics. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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24

Hwang, Jae-Won George 1980. "Elucidating the mechanisms behind pre-breakdown phenomena in transformer oil systems." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60145.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 321-334).<br>The widespread use of dielectric liquids for high voltage insulation and power apparatus cooling is due to their greater electrical breakdown strength and thermal conductivity than gaseous insulators. In addition, their ability to conform to complex geometries and self-heal means that they are often of more practical use than solid insulators. Unfortunately, as with all insulation, th

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25

Okubo, Hitoshi, Masahiro Hanai, Hiroki Kojima, and Naoki Hayakawa. "Recent Progress in Electrical Insulation Techniques for HTS Power Apparatus." Elsevier, 2012. http://hdl.handle.net/2237/20731.

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26

Nyberg, John-Levi. "Lightning Impulse Breakdown Tests : Triggered Spark Gap Analysis." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-141172.

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This project was made by student from UmeåUniversity and a request from the universityETH in Zürich, Switzerland. In this research project the electrical strengthof different natural gases and mixtures was investigated, and the aim was to finda gas or gas mixture with a natural origin or strongly attaching gases that couldreplace SF6 (Sulfur Hexafluoride). The gases were tested with breakdown experiments,one of those test was called lightning impulse breakdown test. The mainpart of this project was to investigate triggered spark gaps, which could be used inlightning impulse breakdown test. The

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27

Jäverberg, Nadejda. "Electrical Insulating Properties of Poly(Ethylene-co-Butyl Acrylate) Filled with Alumina Nanoparticles." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-116862.

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In this work the electrical insulating properties of the nanocomposite materials based on poly(ethylene-co-butyl acrylate) filled with alumina nanoparticles are studied. The dielectric properties chosen for the evaluation are the dielectric permittivity and loss as well as the breakdown strength and the pre-breakdown currents. The reason for choosing these particular properties is partly due to the importance of these for the general electrical applications and partly due to the uncertainties involved for these particular properties of the nanocomposite materials. The importance of moisture ab

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28

Kosier, Steven Louie 1966. "The effects of ionizing radiation on the breakdown voltage of p-channel power MOSFETs." Thesis, The University of Arizona, 1990. http://hdl.handle.net/10150/277798.

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The effects of ionizing radiation on the breakdown voltage of p-channel power MOSFETs were examined through two-dimensional simulation. The response of a reverse-biased n+-p junction to positive oxide-trapped charge, Not, is examined in detail, and analytical expressions for its characteristics are derived. These results provide insight into the breakdown performance of p-channel power MOSFETs in ionizing radiation environments, whose performance was found to be very different from corresponding n-channel power MOSFETs. Insights gained through analysis of p-channel devices suggest a terminatio

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29

Ghaffarian, Niasar Mohamad. "Mechanisms of Electrical Ageing of Oilimpregnated Paper due to Partial Discharges." Doctoral thesis, KTH, Elektroteknisk teori och konstruktion, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-159670.

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In this thesis, partial discharge (PD) phenomenon in oil-impregnated paper (OIP) is investigated under accelerated electrical stress. The thesis is mainly focused on the characteristic of PD activity and the influence it has on the insulation properties of OIP. PD source was created by introducing an air filled cavity embedded between layers of OIP. PD activity is investigated from the initiation up to final puncture breakdown of the OIP. The time-evolution of number, maximum magnitude and average magnitude of PD is investigated for cavities with different diameter and height. It was found tha

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30

Williams, David Elliott. "Generation of noise power at THz frequencies using CMOS schottky diodes in avalanche breakdown." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/113439.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2016.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 129-131).<br>The viability of using CMOS schottky diodes in avalanche breakdown to generate noise power at THz frequencies was evaluated. Two sets of test diodes manufactured in TSMC's 65nm CMOS process were characterized in

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31

You, Shu-Chyng. "Validating the therapy prediction model through a breakdown analysis on ICU patient medical records." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/42122.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (p. 81-83).<br>With the rapid advancement of computational data analysis tools, medical informatics has emerged as a discipline that explores the use of medical information in clinical practice. It searches for ways to effectively integrate as much information as is available to physicians when they make clinical decisions and represent the information in the most intelligent way possible. As part of an overall effort to develop a program t

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32

Lednev, Alexander I. (Alexander Igorevich). "Time dependent dielectric breakdown in novel GaN metal-insulator-semiconductor high electron mobility transistors." Thesis, Massachusetts Institute of Technology, 2018. https://hdl.handle.net/1721.1/121628.

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This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2018<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (pages 83-84).<br>Power electronics is expanding as we automate and electrify our households and step into mainstream electric vehicles. Recently, GaN metal-insulator-semiconductor high electron mobility transistors (MIS-HEMTs) have

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33

Zhang, Lei. "Electrical tracking over solid insulating materials for aerospace applications." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/electrical-tracking-over-solid-insulating-materials-for-aerospace-applications(94086fc5-0ca2-4d12-aa6d-97452d3169d1).html.

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The concept of More Electric Aircraft, where is to utilize the electrical power to drive more or all aircraft subsystem instead of conventional combination of pneumatic, hydraulic, mechanical and electrical power, can be recalled to World War II. It has been proven to have more advantages for decades in terms of energy efficiency, environmental issues, logistics and operational maintenance. It can also enhance aircraft weight, volume and battle damage reconfigurability.Thanks to the new electronics technologies and the emergence of new materials, It becomes feasible for high power density elec

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34

Cartwright, Giles Adrian. "The measurement of space charge and its effect on the breakdown strength of solid polymeric insulation." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240724.

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35

Verdaasdonk, Bart Willem. "Physics of trap generation and electrical breakdown in ultra-thin SiO2 and SiON gate dielectric materials." Enschede : University of Twente {Host], 2007. http://doc.utwente.nl/58722.

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36

Thompson, Ian. "Application of electrical measurements to monitor the breakdown of organic coating systems applied to metallic substrates." Thesis, Northumbria University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358147.

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37

Mossor, Charles W. "Electrical Breakdown of Thermal Spray Alumina Ceramic Applied to AlSiC Baseplates Used in Power Module Packaging." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/33543.

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Thermal spray coatings offer new alternatives in the production of electronic power modules that use alumina ceramic as an isolation layer. Current processes use direct bond copper (DBC) soldered to a nickel plated copper heat spreader. A coefficient of thermal expansion (CTE) mismatch exists between copper and alumina and leads to reliability issues that arise due to product failure during thermal cycling and lifetime operation. The substitution of an AlSiC metal matrix composite (MMC) heat spreader baseplate addresses the problem of CTE mismatch and will reduce the number of product failu

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38

Andersen, Allen. "The Role of Recoverable and Non-Recoverable Defects in DC Electrical Aging of Highly Disordered Insulating Materials." DigitalCommons@USU, 2018. https://digitalcommons.usu.edu/etd/7047.

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Electrical insulation under high voltage can eventually fail, causing critical damage to electronics. Such electrostatic discharge (ESD) is the primary source of anomalies or failures on spacecraft due to charged particles from the Sun or planetary radiation belts accumulating in spacecraft insulators. Highvoltage direct current power distribution is another example of a growing industry that needs to estimate the operational lifetime of electrical insulation. My research compares laboratory tests of ESD events in common insulating materials to a physics-based model of breakdown. This model of

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39

Okubo, H., H. Kojima, F. Endo, K. Sahara, R. Yamaguchi, and N. Hayakawa. "Partial Discharge Activity in Electrical Insulation for High Temperature Superconducting (HTS) Cables." IEEE, 2008. http://hdl.handle.net/2237/12061.

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40

Kamarudin, Muhammad. "Experimental investigation of CF3I-CO2 gas mixtures on the breakdown characteristics in uniform and nonuniform field configurations." Thesis, Cardiff University, 2013. http://orca.cf.ac.uk/53521/.

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This thesis is concerned with the investigation of trifluoroiodomethane (CF3I) gas mixtures as an alternative for an insulation medium in high voltage applications. The work has involved a broad review of literature, followed by developing a test rig for carrying out experimental investigations, extensive computational modelling and simulation studies as well as extensive laboratory tests on CF3I gas and its gas mixtures. The literature survey reviewed the current trend of efforts taken by researchers to find solutions for minimizing the usage of sulphur hexafluoride (SF6) as a gas insulator,

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41

Fulper, Jacob C. "THE EFFECTS OF SWITCHING IMPULSES ON THE PARTIAL DISCHARGE ACTIVITY AND BREAKDOWN VOLTAGE OF 15 KV XLPE AND EPR CABLES." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11052009-131823/.

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A growing trend in the electrical industry is to move away from overhead lines and towards underground distribution. The cables necessary for underground distribution are stressed in various ways, and one of the most ignored stresses is that of overvoltage caused by switching. The focus of this research is to determine the effects that high voltage switching impulses have on the electrical strength of medium voltage cable insulation. Accelerated aging was performed on multiple samples of XLPE and EPR cables by applying multitudes of switching impulses. At various stages of the aging process, p

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42

Sundararajan, Abhishek. "A STUDY ON ATOMICALLY THIN ULTRA SHORT CONDUCTING CHANNELS, BREAKDOWN, AND ENVIRONMENTAL EFFECTS." UKnowledge, 2015. http://uknowledge.uky.edu/physastron_etds/27.

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We have developed a novel method of producing ultra-short channel graphene field effect devices on SiO2 substrates and have studied their electrical transport properties. A nonlinear current behavior is observed coupled with a quasi-saturation effect. An analytical model is developed to explain this behavior using ballistic transport, where the charge carriers experience minimal scattering. We also observe multilevel resistive switching after the device is electrically stressed. In addition, we have studied the evolution of the electrical transport properties of few-layer graphene during elect

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43

Okubo, Hitoshi, and Naoki Hayakawa. "A novel technique for partial discharge and breakdown investigation based on current pulse waveform analysis." IEEE, 2005. http://hdl.handle.net/2237/6748.

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44

Lunt, Patrick Joseph Brian. "XPS studies of surface ageing and discharge processes in polymeric insulators." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/xps-studies-of-surface-ageing-and-discharge-processes-in-polymeric-insulators(2329d184-6677-4981-988e-e17b95bae229).html.

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The ageing of polymer insulation occurs under long-term exposure to high electric fields and has attracted research due its relevance to high voltage insulation. In this work, polymers that have been electrically aged via a number of methods have been investigated using X-ray photoelectron spectroscopy (XPS). Despite some use in the investigation of outdoor insulation surfaces, XPS has not been used for investigations of polymer bulk electrical ageing before now. The first XPS measurements, using both small spot analysis and XPS imaging, are presented from the exposed inner surfaces of electri

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45

Zhao, Yong. "Morphology and electrical trees in semi-crystalline polymers." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314355.

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46

Liu, Qiang. "Electrical performance of ester liquids under impulse voltage for application in power transformers." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/electrical-performance-of-ester-liquids-under-impulse-voltage-for-application-in-power-transformers(3702b3a2-ec5f-4674-ab11-1032906e8c0c).html.

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Ester liquids including both natural ester and synthetic ester are being considered as potential alternatives to mineral oil, due to their better environmental performance and for some liquids their higher fire point. Although these liquids have been widely used in distribution and traction transformers, it is still a significant step to adopt ester liquids in high-voltage power transformers because the high cost and severe consequence of a factory test failure and the high level of safety and reliability required in service for these units, tend to lead to a cautious approach to any step chan

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47

Iddrissu, Ibrahim. "Study of electrical strength and lifetimes of polymeric insulation for DC applications." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/study-of-electrical-strength-and-lifetimes-of-polymeric-insulation-for-dc-applications(68af91aa-80ef-431c-ae93-9ffdb272d648).html.

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Polymeric insulating materials are being re-evaluated in the context of the re-emergence of HVDC and its advantages in bulk power transfer over long distances. This has been met with new sets of requirement such as; the use of polymeric insulation, compaction of HV equipment (e.g. HV cables), and innovations in converter technology. This equipment requires high power rating and hence will be exposed to high electric stresses. One of the properties of polymeric DC insulation is its ability to retain injected charges at high DC fields leading to local field modification and subsequent breakdown

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48

Johnson, Michael S. "Advancements in the Solid-state Impact-ionization Multiplier (SIM) Through Theory, Simulation and Design." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2636.

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This dissertation outlines the study and development of a Solid-state Impact-ionization Multiplier (SIM). The SIM is a stand-alone current amplifier designed with optical detection systems in mind. The SIM amplifies signals utilizing impact ionization as a source of gain. The SIM is fabricated on silicon in order to take advantage of its favorable impact ionization coefficients. Utilizing silicon in impact ionization based gain devices makes low noise and high gains attainable. Because it is a stand-alone device, it can be wired to an arbitrary current source making it capable of receiving an

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49

Magill, Donna Patricia. "The electrical properties of thin hydrogenated amorphous carbon (a-C:H) insulating films on semiconductor and metal substrates." Thesis, University of Ulster, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342527.

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50

Johnson, Weston C. "DESIGN AND ANALYSIS OF MACRO SWITCHED IMPEDANCE MOTORS." UKnowledge, 2011. http://uknowledge.uky.edu/ece_etds/50.

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For present day global economies energy use is the single most important criteria determining a nation’s wealth and sustainability. The global energy needs are met primarily by fossil fuels which are of finite supply. One means to extend the life span of the fossil fuel reserves has been to improve the efficiency of existing systems including generation, storage, usage etc., as a means of conservation. This dissertation investigates a motor technology that promises to complement existing conservation techniques. Given advances in high voltage power semiconductors, manufacturing techniques and

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