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 VST3-ThP

Paper VST3-ThP2
Pressure Field in a Tube with General and Arbitrary Time- and Position-Dependent Degassing

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

Session: Vacuum System Modeling Poster Session
Presenter: F.T. Degasperi, Faculdade de Tecnologia de São Paulo FATEC-SP, Brazil
Authors: F.T. Degasperi, Faculdade de Tecnologia de São Paulo FATEC-SP, Brazil
S.L.L. Verardi, Universidade de São Paulo, Brazil
J. Takahashi, Instituto de Fisica da USP, São Paulo, Brazil
M.N. Martins, Instituto de Fisica da USP, São Paulo, Brazil
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We present in this paper analytical and numerical results for the pressure profile in a tube with general and arbitrary time- and position-dependent degassing. The time evolution of the pressure profile is discussed. We also study the time evolution of the pressure along the tube in situations commonly found in vacuum technology, like particle accelerators, colliders, storage rings, and synchroton light sources.