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Appendix A

Nomenclature

A.1 Constants and Measurement Units

 A ampere (unit of current) AU astronomical unit (Earth-to-Sun distance, km) C coulomb cm centimeter dB decibel deg degree e/cm2 electrons per square centimeter eV electron volt F farad (measure of electrical capacitance) ft foot GHz gigahertz h hour Hz hertz, unit of frequency (1 cycle per second) in. inch J joule (unit of energy) K kelvin kÅ kiloangstrom keV kiloelectron volt (103 eV) kg kilogram km kilometer kΩ kilohm (103 Ω) kV kilovolt (103 V) m meter, mass, milli M mega, million mA milliampere (10−3 A) MeV million electron volts mho unit of electrical conductance, the reciprocal of resistance in Ω, also known as the siemens (S) MHz megahertz (frequency, 106 Hz) mil one-thousandth of an inch = 0.001in. = 0.0254 mm [Note Although the mil is not an SI unit of measure, it is a standard unit of measure (unconverted to SI units) often used in this discipline to describe material thickness]. min minute mJ millijoule (10−3 J) mm millimeter mΩ milliohm (10−3 Ω) MΩ megohm (106 Ω) mV millivolt nA nanoampere (10−9 A) nC nanocoulomb (10−9 C) nF nanofarad (10−9 F) nm nanometer (10−9 m) ns nanosecond (10−9 s) nT nanotesla (10−9 tesla), magnetic field unit ohm (Ω) unit of electrical resistance pA picoampere (10−12 A) pF picofarad (10−12 F) q

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