Definition of the linear region of x-ray induced cable response. Topical report January--April 1977
Cable response due to X-irradiation is linear with incident fluence provided the deposited charge in cable dielectrics is directly proportional to the X-ray flux. In order to estimate the level at which the linear region ends, three nonlinear processes are discussed which modify the deposited charge profile in a hypothetical cable model: field limiting in vacuum gaps, ionization effects in air gaps, and radiation-induced dielectric conductivity. The exact level, at which limiting of the Norton driver in an elemental length of cable begins, depends on the cable geometry and the X-ray source. Estimates of the onset of nonlinearities due to field limiting and to dielectric conductivity are found in terms of cable and source parameters. With air-filled gaps the Norton driver is always nonlinear. In addition to limiting of the Norton drivers, the load response of a long cable may be limited due to attenuation of propagating currents in the induced conductivity of the bulk of the dielectric.
- Research Organization:
- TRW Defense and Space Systems Group, Redondo Beach, CA (USA)
- OSTI ID:
- 6480884
- Report Number(s):
- AD-A-052609
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Instruments
or Electronic Systems
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CABLES
CONDUCTOR DEVICES
ELECTRIC CABLES
ELECTRIC CONDUCTIVITY
ELECTRICAL EQUIPMENT
ELECTRICAL INSULATION
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
EQUIPMENT
IONIZING RADIATIONS
NONLINEAR PROBLEMS
PHYSICAL PROPERTIES
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
RADIATIONS
X RADIATION