High time resolution measurements of rocket potential changes induced by electron beam emissionThe transient charging and photon emission from the vacuum chamber testing of the Cooperative High Altitude Rocket Gun Experiment are studied. Graphs of the mother-daughter voltage versus time and high time resolution data related to the return current to the vehicle are examined. It is observed that for average sounding rocket densities of 10 to the -6th torr the slope of the voltage rise of the rocket begins to flatten 40 microsec after the onset of electron beam emission, and for higher gas pressure the rocket reaches a maximum voltage of 25 or 30 microsec after the onset of electron beam emission. The data reveal that the return current mechanism for the higher gas pressure is through the sheath.
Document ID
19870031118
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Raitt, W. J. (Utah State Univ. Logan, UT, United States)
Myers, N. B. (Utah State University Logan, United States)
Williamson, P. R. (Utah State Univ. Logan, UT, United States)
Banks, P. M. (Stanford University CA, United States)