A new Ti-based non-evaporable getter

Preparation and pumping characteristics of Ti–7.5wt.%Mo getter

“…The increasing content of (␤-Ti, Mo) phase could be ascribed to high activation temperature and the quick cooling rate which helps holding the phase formed at 900 • C. However, TiO contamination which was formed during air baking did not bring an adverse affect on pumping property but improve the property. Studies are in progress to identify the cause of this puzzling effect, which however had been noticed in previous study [8] and may be possibly due to the structural modifications cause.…”

“…For example, if working under severe vibration conditions, neutron tubes, traveling wave tubes, phototubes and so on whose vacuum chambers are conductive particles free chambers need getter with good mechanical strength to withstand severe working conditions. The sintered porous Ti-Mo getter attracts growing interests these years with moderate activation temperatures, effective gas-absorbing properties, good bonding strength and diverse configurations [8]. Therefore, it is highly necessary to investigate the pumping characteristics of porous bulk Ti-Mo getter for practical conditions.…”

Intermetallic alloys as hydrogen getters

“…Ti-Mo getters have been studied by Giorgi et al in the 90's [64]. Besides aiming at achieving high sorption efficiency, Ti-Mo getters are expected to have good mechanical strength.…”

Operation of a high-gradient superconducting radio-frequency cavity with a non-evaporable getter pump

“…NEG pumps ______________________________________________ equipped with sintered disks are used in several particle sensitive applications such as photocathode transportation [9] and electron microscopes [10,11] as well as in several advanced accelerators facilities [2]. The getter sintering process [12] is a high temperature process carried out under vacuum with the purpose to bound the getter powder grains together, consolidating them in one single body, This intrinsically mitigate the risk that grains of getter powder may be released during the pump operation. Getter disks with good mechanicalstability, high porosity and large surface area, thus able to deliver large pumping speed and capacity, can be obtained by adjusting and optimizing the sintering process.To the authors' knowledge, the CESR accelerator at Cornell [13] is the only accelerator in which a NEG pump using sintered getters is located close to a single-cavity SRF cryomodule.…”