Results 111 to 120 of about 412,475 (161)
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Vacuum ultraviolet spectrophotometer system
Journal of Physics E: Scientific Instruments, 1973A spectrophotometer system comprising a continuum source, monochromator, reflectometer and digital signal handling system is described. The important advantages are that; the system is totally integrated; both transmission and reflection measurements (at a range of angles) can be made; operation is simple, convenient and semi-automatic; data are ...
C F, Dickinson, E, Ellis
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Residual gases in vacuum systems
Vacuum, 1960Investigations of the gas composition in sealed-off high and ultra-high vacuum systems with the aid of the omegatron have shown that the gas evolution of the materials and interactions between the gases and the surfaces determine the kind of gases which are present. Such interactions are: absorption, chemical and exchange reactions.
A. KLOPFER, S. GARBE, W. SCHMIDT
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Vacuum System. Part I—Vacuum Chamber
Review of Scientific Instruments, 1953Details are given of the design, fabrication, and assembly, of the Cosmotron's vacuum chamber. Four quadrant-length units, each shaped to fit the magnet's curvature, are joined by expansion joints to stainless steel straight-section boxes that house special component equipment. In the quadrant sections, the inner and outer walls are 1-in. thick, solid,
D. D. Jacobus, I. J. Polk
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Proceedings of International Conference on Particle Accelerators, 2002
Elettra is a third-generation synchrotron light source which is being built especially for the use of high brilliance radiation from insertion devices and bending magnets. The UHV conditions in a storage ring lead to a longer beam lifetime-one of the most important criterion.
M. Bernardini +5 more
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Elettra is a third-generation synchrotron light source which is being built especially for the use of high brilliance radiation from insertion devices and bending magnets. The UHV conditions in a storage ring lead to a longer beam lifetime-one of the most important criterion.
M. Bernardini +5 more
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Vacuum, 2008
Abstract ITER is a large vacuum facility which comprises many service, diagnostic and monitoring vacuum sub-systems as well as three large cryogenic pumping systems for evacuation and maintenance of the requested pressure levels. The presence of hydrogen (including the radioactive isotope tritium) and exclusion of other gases defines the parameters ...
Day, Chr., Murdoch, D., Pearce, R.
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Abstract ITER is a large vacuum facility which comprises many service, diagnostic and monitoring vacuum sub-systems as well as three large cryogenic pumping systems for evacuation and maintenance of the requested pressure levels. The presence of hydrogen (including the radioactive isotope tritium) and exclusion of other gases defines the parameters ...
Day, Chr., Murdoch, D., Pearce, R.
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Hydrogen in Vacuum Systems: An Overview
AIP Conference Proceedings, 2003Hydrogen is the predominant residual gas in metal vacuum systems at very low pressures (i.e. in the utrahigh [uhv] and extreme high vacuum [xhv] ranges) and the reduction in the hydrogen outgassing rate is the most challenging problem in achieving xhv. Our understanding of the diffusion and adsorption/desorption processes involved in the outgassing of ...
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Behavior of Vacuum Pressure in TPS Vacuum System
2015Taiwan Photon source (TPS) is in its first stage commissioning in 2014-2015. The vacuum systems of TPS were installed for commissioning since August 2014. After four months performance testing and subsystem integration, the commissioning of booster ring began on 12 December and then the first 3 GeV beam was stored on 31 December.
Yang, I-Chen +11 more
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Vacuum, 1954
Resume UN MAOBSERVE UNE decoloration du cuivre employe dans un systeme a vide, en presence de quelques types de coutchouc, bien qui le coutchouc naturel ou au silicone semble etre inoffensif. Ce phenomene n'est observe que sur une piece de metal: les films de cuivre evapore semblent etre insensibles.
J.G.S. Biram, T.A.J. Jacques
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Resume UN MAOBSERVE UNE decoloration du cuivre employe dans un systeme a vide, en presence de quelques types de coutchouc, bien qui le coutchouc naturel ou au silicone semble etre inoffensif. Ce phenomene n'est observe que sur une piece de metal: les films de cuivre evapore semblent etre insensibles.
J.G.S. Biram, T.A.J. Jacques
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Energy saving potential of a vacuum-based membrane dehumidifier in a dedicated outdoor air system
Energy Conversion and Management, 2021Seong-Yong Cheon, Jae-Weon Jeong
exaly
Structural design of flexible vacuum insulation system for large-scale LH2 storage
International Journal of Hydrogen Energy, 2022Hyunjun Park +2 more
exaly