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            "type": "header",
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            "text": "Low vacuum, field-free mode\n1.2 nm at 15 kV\n1.8 nm at 3 kV",
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            "text": "January 31, 2023\nPage 7 of 17\nQUO-164553-S1Q2 R0\nExpires: April 28, 2023",
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            "text": "Scanning system"
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                    "text": "High-resolution digital scanning engine controlled from the User Interface."
                },
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                    "text": "Pixel density 768 x 512, 1536 x 1024, 3072 x 2048, 6144 x 4096, selectable",
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                    "text": "Minimum dwell time 25 ns/pixel; maximum 25 ms/pixel",
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                    "text": "Electronic scan rotation by n x 360 degrees",
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            "text": "Detection",
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            "text": "Apreo 2 S LoVac features a high-vacuum secondary electron detector (Everhart-Thornley SED) and low-vacuum SED (LVD), optimized for use across the available kV, current and pressure range. The Trinity detection system is comprised of a segmented, lower in-lens detector (T1), an upper in-lens detector (T2) and an in-column detector (T3). Apreo 2 S LoVac also includes a dedicated Low Vacuum secondary electron detector to provide charge-free topographic contrast imaging of non-conductive samples. An integrated IR-CCD camera is standard for in-chamber viewing and the Nav-Cam color optical camera is used to take top-down images of samples for navigation. Optionally available are a retractable Directional Backscatter (DBS) detector and a STEM detector for imaging thin sections, powders or FIB-prepared specimen."
        },
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            "text": "Imaging",
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            "id": "p61.8",
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            "text": "Images are displayed in an area of 1536 x 1024 pixels, configurable for either single-frame or four-view display. Apreo 2 features FLASH technology, which automatically performs focus, lens alignment and stigmator alignment in a matter of seconds – all that is required is the push of a button. Images can be viewed live, averaged or integrated. Apreo 2 fully supports the SmartSCAN™ advanced scanning strategies which allow line averaging and interlaced scanning in addition to Drift Corrected Frame Integration (DCFI). Still images can be saved in TIFF, BMP, JPEG file formats, and in 8-bit, 16-bit or 24-bit depth, to the hard disk or LAN from the graphical user interface. Image printing is also available from the user interface. In addition, the system supports recording of AVI movies. This can either be done on the fly or by capturing a series of TIFF images at user-specified intervals. These TIFF images can then be combined into AVI's by using the included proprietary movie creator software."
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            "text": "The software includes a 4-view mode, in which the displays can be used for live display of electron images (SE, BSE), mixing of signals and display of the image of the standard infrared (IR-CCD) camera."
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            "text": "Look-up tables allow image contrast, brightness or gamma to be enhanced. Flexible databar selection is also provided. User-definition of preferred imaging parameter sets is available. Imaging parameters are stored in the TIFF image file as private data. Finally, image measurements and annotations can be performed live on the image and the results can be stored together with the images."
        },
        {
            "id": "p61.11",
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            "text": "Selected area electron channeling imaging",
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            "text": "Apreo S HiVac comes with PivotBeam™ functionality for selected area electron channeling. Also known as “rocking beam” mode, PivotBeam keeps the beam on a single area (<5 [p61.12.1]m diameter) while scanning the incident angle. For crystalline materials, the resulting k-space image shows dark bands reminiscent of an EBSD pattern, indicating the angles with enhanced electron channeling. PivotBeam helps orienting the sample for Electron Channeling Contrast Imaging (ECCI) and imaging dislocations in the crystal.",
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                    "text": "μ",
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            "text": "System control",
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            },
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        },
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            "text": "Apreo 2 S LoVac is controlled from an MS-Windows 10 graphical user interface running at a 1920 x 1200 screen resolution. The controller computer is based on an Intel Xeon W3520 Processor/ 2.66 GHz 8 MB cache, 12 GB system memory, one 500 GB hard drive, one 16x DVD+/-RW drive, integrated FireWire and USB ports and a 1 Gb LAN network card (computer specifications subject to change). The system includes a 24\" LCD monitor, keyboard, optical mouse and a height-adjustable office desk. A USB manual user interface (for controlling magnification, contrast/brightness, beam shift and stigmatters) and/or a Joystick (for control of stage movement) is optionally available."
        },
        {
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            "order": 20,
            "type": "footer",
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            "text": "Confidential",
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            }
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            "text": "FEI Company • 5350 NE Dawson Creek Drive • Hillsboro, Oregon 97124\nTel: 503-726-7500 • Fax: 503-726-2570\nPlease reference our quotation number in all related correspondence",
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            "text": "Thermo Fisher SCIENTIFIC",
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