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-ThP11
Study of Outgassing and Photon Stimulated Ion Desorption of Copper with Synchrotron Radiation

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

Session: Vacuum Issues in Accelerators Poster Session
Presenter: Y.J. Hsu, Synchrotron Radiation Research Center, Taiwan
Authors: Y.J. Hsu, Synchrotron Radiation Research Center, Taiwan
C.-C. Lee, Synchrotron Radiation Research Center, Taiwan
S.-H. Chang, Synchrotron Radiation Research Center, Taiwan
G.-Y. Hsiung, Synchrotron Radiation Research Center, Taiwan
J.-R. Chen, Synchrotron Radiation Research Center, Taiwan
Correspondent: Click to Email
The surface characterizations of oxygen free copper by utilizing photoemission spectra (PES), thermal desorption spectra (TDS), photon stimulated ion desorption (PSID), and target current measurement with various surface treatments have been studied. In contrast to aluminum alloy, the XPS data showed the adsorbates on copper surface were apparently reduced after the surface annealing. In the PSID, copper showed the similar main ion desorption species as that of aluminum alloy while surface irradiated with synchrotron white light. However, the desorption yield of copper was much smaller than that of aluminum alloy. The desorptiom yield as a function of photon energy from 10 ~200 eV indicated ion desorption of copper were mainly excited by the generation of photoelectrons.