{"id":18577,"date":"2026-04-20T20:56:16","date_gmt":"2026-04-20T20:56:16","guid":{"rendered":"https:\/\/er-c.org\/?page_id=18577"},"modified":"2026-04-20T21:24:31","modified_gmt":"2026-04-20T21:24:31","slug":"zeiss-gemini-sem-460","status":"publish","type":"page","link":"https:\/\/er-c.org\/index.php\/facilities-2\/facilities-material-science\/material-science\/zeiss-gemini-sem-460\/","title":{"rendered":"Zeiss Gemini SEM 460"},"content":{"rendered":"\n

Zeiss Gemini SEM 460<\/h1>\n\n\n\n
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The Zeiss Gemini SEM 460<\/strong> is an environmental scanning electron microscope (ESEM) designed for high-resolution imaging and advanced multi-modal materials characterization. The system provides a flexible platform combining conventional SEM imaging with analytical and correlative techniques, including energy-dispersive X-ray spectroscopy (EDX), electron backscatter diffraction (EBSD), atomic force microscopy (AFM), Raman spectroscopy, and in situ heating experiments.<\/p>\n\n\n\n

The microscope was installed in January 2025<\/strong>, and several additional detectors and modules have been integrated since installation. The Oxford EDX and EBSD systems were installed on 14\u201315 April 2025<\/strong>, followed by the installation of the Doublefox AFM<\/strong> on 28 April 2025<\/strong>. A Kammrath & Weiss heating and transfer module<\/strong> was added on 17 July 2025<\/strong>, and the Renishaw InLux Raman interface<\/strong> was installed on 26\u201327 August 2025<\/strong>. Further extensions and optimizations of the system are ongoing.<\/p>\n\n\n\n

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Typical Applications and Limitations of Use<\/h2>\n

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The Zeiss Gemini SEM 460<\/strong> supports a broad range of applications in materials science, nanotechnology, and related fields. Typical applications include high-resolution imaging of surface morphology, nanostructure characterization, chemical composition analysis using EDX, and crystallographic orientation mapping using EBSD. The integrated STEM detector system enables transmission-based imaging modes such as bright-field (BF), dark-field (DF), annular dark-field (ADF), and high-angle annular dark-field (HAADF) imaging. Advanced methods such as 4D-STEM<\/strong> using a DigiPix camera and custom stage allow the investigation of local diffraction and structural properties at high spatial resolution.<\/p>\n

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Correlative and multi-modal approaches are supported through the integration of AFM and Raman spectroscopy. The Doublefox AFM enables complementary nanoscale topographic measurements, while the Renishaw inLux\u2122 Raman interface with Virsa\u2122 Raman analyser allows chemical and molecular characterization within the SEM environment. Additional analytical capabilities include residual gas analysis using a Pfeiffer mass spectrometer.<\/p>\n

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Limitations of use arise primarily from sample compatibility with vacuum conditions, detector geometry, and experimental setup requirements. Analytical techniques such as EDX and EBSD require appropriate working distances (typically 10 mm for EDX<\/strong> and 15\u201325 mm for EBSD<\/strong>) and high-quality sample preparation, including flat and stable surfaces. Certain gases available in the gas injection system require additional safety evaluation before use. Large, irregular, or reactive samples may restrict detector access or limit the applicability of specific imaging or analytical modes. Users are encouraged to discuss complex experiments with instrument staff prior to measurement.<\/p>\n

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Sample Environment<\/h2>\n

The Zeiss Gemini SEM 460<\/strong> provides a versatile sample environment supporting both conventional high-vacuum operation and environmental imaging. The environmental NanoVP mode allows operation at chamber pressures of up to 500 Pa<\/strong>, enabling the investigation of non-conductive or beam-sensitive samples while reducing charging effects.<\/p>\n

The instrument supports controlled in situ and environmental experiments through several integrated modules. A Kammrath & Weiss heating stage and transfer module<\/strong> enables heating experiments at temperatures of up to 1050 \u00b0C<\/strong>, supporting studies of thermally induced structural or chemical changes. A gas injection system (CC-GIS)<\/strong> allows the controlled introduction of selected gases, including N\u2082, O\u2082, Ar, CH\u2084, CO, and H\u2082<\/strong>, with some gases requiring additional safety evaluation.<\/p>\n

Additional environmental and analytical monitoring is supported by a Pfeiffer mass spectrometer<\/strong> for residual gas analysis. The system also enables correlative measurements through integration with the Doublefox AFM and the Renishaw inLux\u2122 SEM Raman interface, expanding the range of experimental environments and characterization methods available.<\/p>\n

The available sample environment depends on the installed detectors and selected experimental configuration. Working distance requirements, pressure limits, and temperature constraints must be considered during experimental planning. Users should ensure that samples are vacuum-compatible and stable under electron beam exposure.<\/p>\n

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Technical Specifications<\/h2>\n

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Parameter<\/th>\nSpecification<\/th>\n<\/tr>\n<\/thead>\n
Acceleration Voltage<\/strong><\/td>\n20 V \u2013 30 kV<\/td>\n<\/tr>\n
Resolution (STEM)<\/strong><\/td>\n0.6 nm at 30 kV<\/td>\n<\/tr>\n
Resolution<\/strong><\/td>\n0.7 nm at 15 kV<\/td>\n<\/tr>\n
Low Voltage Resolution<\/strong><\/td>\n1.1 nm at 1 kV \/ 500 V<\/td>\n<\/tr>\n
Resolution at Elevated Pressure<\/strong><\/td>\n1.0 nm at 30 Pa and 15 kV<\/td>\n<\/tr>\n
Vacuum Modes<\/strong><\/td>\nHigh vacuum and NanoVP low-vacuum mode<\/td>\n<\/tr>\n
Maximum Chamber Pressure<\/strong><\/td>\nUp to 500 Pa<\/td>\n<\/tr>\n
STEM Detectors<\/strong><\/td>\nBF, DF, ADF, HAADF, segmented<\/td>\n<\/tr>\n
4D-STEM Capability<\/strong><\/td>\nDigiPix camera with custom stage<\/td>\n<\/tr>\n
EDX System<\/strong><\/td>\nOxford UltimMax 170 mm\u00b2<\/td>\n<\/tr>\n
EBSD Detector<\/strong><\/td>\nOxford EBSD<\/td>\n<\/tr>\n
Recommended Working Distance<\/strong><\/td>\n10 mm (EDX), 15\u201325 mm (EBSD)<\/td>\n<\/tr>\n
AFM System<\/strong><\/td>\nDoublefox AFM<\/td>\n<\/tr>\n
Heating Stage<\/strong><\/td>\nKammrath & Weiss heating\/transfer module<\/td>\n<\/tr>\n
Maximum Heating Temperature<\/strong><\/td>\nUp to 1050 \u00b0C<\/td>\n<\/tr>\n
Raman System<\/strong><\/td>\nRenishaw inLux\u2122 interface with Virsa\u2122 analyser<\/td>\n<\/tr>\n
Residual Gas Analysis<\/strong><\/td>\nPfeiffer mass spectrometer<\/td>\n<\/tr>\n
Gas Injection System<\/strong><\/td>\nN\u2082, O\u2082, Ar, CH\u2084, CO, H\u2082 (subject to approval)<\/td>\n<\/tr>\n
Additional Components<\/strong><\/td>\nFast beam blanker<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n

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The Zeiss Gemini SEM 460 is an environmental scanning electron microscope (ESEM) designed for high-resolution imaging and advanced multi-modal materials characterization. The system provides a flexible platform combining conventional SEM imaging with analytical and correlative techniques, including energy-dispersive X-ray spectroscopy (EDX), electron backscatter diffraction (EBSD), atomic force microscopy (AFM), Raman spectroscopy, and in situ heating experiments.<\/p>\n","protected":false},"author":2,"featured_media":18586,"parent":6019,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-templates\/pagebuilder.php","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"class_list":["post-18577","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/pages\/18577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/comments?post=18577"}],"version-history":[{"count":8,"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/pages\/18577\/revisions"}],"predecessor-version":[{"id":18590,"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/pages\/18577\/revisions\/18590"}],"up":[{"embeddable":true,"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/pages\/6019"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/media\/18586"}],"wp:attachment":[{"href":"https:\/\/er-c.org\/index.php\/wp-json\/wp\/v2\/media?parent=18577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}