IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Vacuum Science & Technology Thursday Sessions
       Session VST2-ThP

Paper VST2-ThP10
Photon Stimulated Desorption from the Aluminum Surface with Water Vapor Exposure

Thursday, November 1, 2001, 5:30 pm, Room 134/135

Session: Vacuum Issues in Accelerators Poster Session
Presenter: J.-R. Chen, Synchrotron Radiation Research Center and National Tsing-Hua University, Taiwan
Authors: J.-R. Chen, Synchrotron Radiation Research Center and National Tsing-Hua University, Taiwan
K.Y. Yang, National Tsing-Hua University, Taiwan
J.Y. Yang, National Tsing-Hua University, Taiwan
G.-Y. Hsiung, Sychrotron Radiation Research Center, Taiwan
Correspondent: Click to Email
The photon stimulated desorptions (PSD) from aluminum surfaces were studied. The aluminum samples, after the treatment of water vapor exposure, were irradiated by the synchrotron light with a critical photon energy of 2 keV. It was observed that the signal of H@sub 2@O gas was exponentially reduced during the synchrotron light irradiation. As the surface getting "dry", the phenomenon changed. In order to study the H@sub 2@O-PSD behavior, experiments were carried out with different conditions, such as different target bias, sample temperature, photon flux and photon dose. The experimental system, results and discussions are described in this paper.