Accession Number : ADA307227

Title :   Effects of Shunt Capacitance on Transient Effects Caused by Electron Irradiation of a Polyethylene Terephthalate Insulated Ribbon Wire.

Descriptive Note : Technical note,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY RESEARCH CEN TER

Personal Author(s) : Miller, William E. ; Phillips, Donald H.

PDF Url : ADA307227

Report Date : MAR 1966

Pagination or Media Count : 15

Abstract : An investigation of the effects of external "shunt" capacitance upon the electron irradiation induced voltage pulses from a 20.3-centimeter strip of polytheylene terephthalate insulated ribbon wire irradiated with 60 keV electrons is reported. Both the average and the maximum pulse heights observed varied inversely with the total capacitance in the system. A change in load resistance caused a negligible variation in average and maximum pulse heights. After irradiation, electron discharge patterns known as Lichtenberg figures were found in the polyethylene terephthalate insulation. Rough calculations indicate that the power density along the discharge path is adequate to produce the observed physical damage. p4

Descriptors :   *TRANSIENTS, *INSULATION, *WIRE, *ELECTRON IRRADIATION, *CAPACITANCE, *POLYETHYLENE TEREPHTHALATE, DENSITY, COMPUTATIONS, DAMAGE, PHYSICAL PROPERTIES, RESISTANCE, ELECTRONS, PULSES, ELECTRIC DISCHARGES, EXTERNAL, POWER, PHTHALATES, ROUGHNESS, SHUNTS.

Subject Categories : Polymer Chemistry
      Physical Chemistry
      Electricity and Magnetism
      Nuclear Physics & Elementary Particle Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE