Photoyields and secondary electron emission (SEE) characteristics were determined under UHV conditions for a group of insulating materials used in spacecraft applications. The SEE studies were carried out with a pulsed primary beam while photoyields were obtained with a chopped photon beam from a Kr resonance source with major emission at 123.6 nm. This provides a photon flux close to that of the Lyman alpha in the space environment. Yields per incident photon are obtained relative to those from a freshly evaporated and air oxidized Al surface. Results are presented for Kapton, FEP Teflon, the borosilicate glass covering of a shuttle tile, and spacesuit outer fabric.


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    Title :

    Electron yields from spacecraft materials


    Contributors:
    Yang, K. (author) / Gordon, W. L. (author) / Hoffman, R. W. (author)


    Publication date :

    1985-03-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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