{"id":188,"date":"2023-10-20T15:38:33","date_gmt":"2023-10-20T13:38:33","guid":{"rendered":"https:\/\/www.saesgetters.com\/highvacuum\/?post_type=applications&p=188"},"modified":"2025-08-08T13:21:31","modified_gmt":"2025-08-08T11:21:31","slug":"surface-science","status":"publish","type":"applications","link":"https:\/\/www.saesgetters.com\/highvacuum\/applications\/surface-science\/","title":{"rendered":"Surface Science"},"content":{"rendered":"\n
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Surface Science<\/h1> <\/div>\n <\/div>\n <\/div>\n
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Reliable UHV Solutions for High-Precision Measurements<\/h2>
Advantages<\/div> <\/div>\n <\/div>\n
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Surface science equipment<\/strong> is fundamental for studying the physical and chemical phenomena that occur at the interfaces of different phases, such as solid-liquid<\/strong>, solid-gas<\/strong>, and solid-vacuum<\/strong>. Advanced surface analysis techniques\u2014including ARPES<\/strong>, SPM<\/strong>, XPS<\/strong>, LEEM\/PEEM<\/strong>, and Molecular Beam Epitaxy (MBE)<\/strong>\u2014require stable, clean ultra-high<\/strong> vacuum (UHV)<\/strong> conditions to deliver high-quality, reproducible results.<\/p>\n

Depending on the technique, base pressures typically range from 1E-9 to 1E-11 Torr<\/strong>, with even lower pressures required for highly sensitive applications in basic research<\/strong>, semiconductor material analysis<\/strong>, exotic materials<\/strong>, and fuel cell R&D<\/strong>.<\/p>\n

To ensure optimal measurement accuracy, surface science vacuum systems must integrate pumps that deliver high pumping speed for hydrogen (H\u2082)<\/strong>\u2014the primary residual gas in UHV environments\u2014while remaining oil-free, vibration-free, and featuring minimal or zero magnetic fields that could interfere with precision experiments.<\/p>\n

SAES <\/strong>CapaciTorr<\/strong>\u00ae Z NEG pumps<\/strong>, often combined with existing turbo molecular pumps (TMPs)<\/strong>, sputter ion pumps (SIPs)<\/strong>, or cryogenic pumps<\/strong>, significantly enhance vacuum performance by increasing hydrogen pumping efficiency without adding power load or complexity. For compact, magnetically clean solutions, the NEXTorr<\/strong>\u00ae Z series<\/strong>\u2014including NEXTorr<\/strong> Z500<\/strong>, Z1000<\/strong>, and Z2000<\/strong>\u2014offers a cutting-edge alternative to bulkier pumps, enabling ultra-clean and stable vacuum environments for next-level surface science research.<\/p>\n <\/div>\n <\/div>\n <\/div>\n\n\n

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Unique Features of SAES Non Evaporable Getter (NEG) Pumps<\/h3>
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High Pumping Speed<\/h3>

High pumping speed for H2<\/sub> is essential for achieving deep and clean UHV conditions, ensuring that the system is free from unwanted contaminants and impurities that could interfere with the measurements.<\/p>\n <\/div>\n <\/div>\n <\/div>\n

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Vibration-free<\/h3>

Absence of vibrations is crucial in Surface Science Equipment as any mechanical disturbance can affect the precision and accuracy of the measurements.<\/p>\n <\/div>\n <\/div>\n <\/div>\n

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Minimal Magnetic Field<\/h3>

Reduced or absent magnetic fields (static or B gradients) are also necessary to minimize any detrimental interferences on the measurements, allowing for accurate and reliable data to be collected.<\/p>\n <\/div>\n <\/div>\n <\/div>\n

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Clean Environment<\/h3>

Clean pumps (sintered) are a plus for any UHV system, especially in Surface Science Equipment, as they prevent any contamination from the pump oil or other materials that could interfere with the measurements.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/div>\n\n\n

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Discover the most advanced solutions for this application<\/h3>\n \n \n <\/span>\n <\/span>\n \n All solutions<\/span>\n \n <\/span>\n <\/span>\n <\/span>\n <\/span>\n <\/a>\n <\/div>\n <\/div>\n
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Vacuum Chambers & Components<\/span><\/i><\/p> <\/a>\n <\/div>\n

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Beam Instrumentation<\/span><\/i><\/p> <\/a>\n <\/div>\n

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CapaciTorr HV<\/span><\/i><\/p> <\/a>\n <\/div>\n

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NEXTorr HV<\/span><\/i><\/p> <\/a>\n <\/div>\n

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Modules HV<\/span><\/i><\/p> <\/a>\n <\/div>\n

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\n \"CapaciTorr-D-UHV\"\n
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CapaciTorr D\/Z (UHV)<\/span><\/i><\/p> <\/a>\n <\/div>\n

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NEXTorr D\/Z (UHV)<\/span><\/i><\/p> <\/a>\n <\/div>\n

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Modules UHV<\/span><\/i><\/p> <\/a>\n <\/div>\n

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\n \"NEG-coating_01-UHV\"\n
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NEG Coating<\/span><\/i><\/p> <\/a>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n\n\n

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