Accession Number : AD0448095


Title :   PLASMA RADIATION SHIELDING,


Corporate Author : AVCO EVERETT RESEARCH LAB INC EVERETT MA


Personal Author(s) : Levy, R H ; Janes, G S


Report Date : Sep 1964


Pagination or Media Count : 10


Abstract : A new scheme is suggested which is intended to make possible the maintenance of a space vehicle at a potential of several hundred million volts above its surroundings. Such a vehicle would be electrostatically shielded against high energy incident protons, but would attract electrons from the interplanetary plasma. The key to the maintenance of the potential is the control of these electrons by a magnetic field. The magnetic field strength required to control these electrons is far less than the strength required to control energetic protons. As a result, engineering estimates of the weight of this device show that if offers the possibility of a substantially increased shielded volume per unit weight. The number of electrons which must be tied to magnetic field lines in the vicinity of the vehicle is large enough so that collective motions resembling those found in plasma physics may be present. The outstanding uncertainty associated with the device is the question of the stability of this electron cloud in the electromagnetic field. No definitive statement can be made on this subject at present. (Author)


Descriptors :   *SHIELDING , ARTIFICIAL SATELLITES , RADIATION HAZARDS , ELECTROMAGNETIC SHIELDING , PLASMAS(PHYSICS) , PROTONS , ELECTRONS , MAGNETIC FIELDS , ELECTRIC FIELDS , ELECTRON DENSITY


Distribution Statement : APPROVED FOR PUBLIC RELEASE