NEG Coating

IntegraTorr® is an advanced solution that revolutionizes the integration of Non-Evaporable Getter (NEG) pumping inside particle accelerator vacuum chambers. This technology is based on a sputtered NEG coating deposited directly onto the internal surfaces of the vacuum chamber, effectively transforming the entire surface into an active vacuum pump.

By converting what is typically a source of outgassing into a high-performance vacuum pump, IntegraTorr® ensures distributed pumping, reducing residual gases and significantly decreasing degassing caused by ion, electron, or photon bombardment. This results in cleaner environments and enhanced performance of vacuum-based systems.

Originally developed at CERN for the Large Hadron Collider (LHC), the NEG coating technique is now available commercially under the IntegraTorr® brand by SAES, offering proven reliability and scientific excellence.

Thanks to more than 20 years of experience in NEG coating technologies, SAES is the industry leader in coating narrow gap insertion devices, custom synchrotron and accelerator chambers, and complex vacuum structures.

Additionally, SAES-RIAL Vacuum and Strumenti Scientifici CINEL—two specialized companies in mechanical vacuum components and scientific instrumentation owned by SAES—provide fully integrated NEG-coated vacuum chambers. These systems combine expertise in manufacturing, cleaning, coating, vacuum testing, and final delivery, ensuring unmatched quality and performance in ultra-high vacuum (UHV) and high vacuum (HV) environments.

• High and uniform pumping speed directly inside narrow and conductance-limited vacuum chambers, enabling efficient gas removal even in complex geometries.
• Simplified vacuum chamber design, eliminating the need for external pumping antechambers and reducing the number of feedthroughs or ports, which helps minimize leaks and costs.
• Low-temperature activation: NEG coating is activated by baking at just 180 °C for 24 hours, making it compatible with a wide range of materials and structures.
• Drastic reduction of thermal and photon-induced outgassing, leading to faster vacuum recovery and improved vacuum stability in ultra-high vacuum (UHV) systems.
• Shorter system conditioning time and reduced bremsstrahlung radiation, essential for high-precision experiments and beam stability.
• Lower secondary electron yield (SEY), beneficial in suppressing electron cloud effects in accelerator beam pipes.
• Multiple air exposures and reactivation cycles possible without degradation, ensuring long-term reliability and extended operational lifespan.

• Particle Accelerators: Ideal for UHV pumping in long straight sections, arcs, and storage rings.
• Heavy Ion Rings: Efficient distributed pumping ensures optimal performance in high-residual-gas-load environments.
• Synchrotron Radiation Facilities: Enhances beamline vacuum and reduces radiation-induced desorption.
• Insertion Devices: Optimized for narrow-gap undulators and wigglers with high pumping requirements.
• Beam Lines: Maintains ultra-clean vacuum for beam transport, analysis chambers, and diagnostics.