IPM Calendar 
Saturday 20 July 2024   Today  
Events for day: Monday 01 July 2024    
           11:00 - 12:00     Journal Club: Experiment & Phenomenology meeting
Non-Evapourable Getters Coating, a novel route to achieve ultra high vacuum

School
PARTICLES AND ACCELERATORS

Abstract:

The search for an effective solution to the problem of pumping conductance-limited vacuum systems, as those for particle accelerators, lead, at the end of 1995, to the start of the development of Non-Evaporable Getters (NEG) thin film coatings at CERN. Coating the whole inner surface of a vacuum chamber, after dissolving the NEG oxide layer by heating (activation), transforms it from a source of
gas into a pump providing very high pumping speed per unit length. In this talk, we will present the NEG physics and also describe how discharge voltage, magnetic field strength, and pressure effect on the deposition ra ...