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The HT7700 with Dual-Mode objective lens features superior high-contrast and high-resolution image quality together with analytical capabilities for biomedical and materials science. Digital design and sophisticated automation increase throughput for both novice and advanced users. Configure the HT7700 to meet all of your advanced sample analysis needs.
Critical sample features can be easily identified in the viewing screen camera image on the LCD monitor while operating in ambient light.
All saved images are stored in an image database where the thumbnail of the image can be viewed.
Each thumbnail image contains the microscope settings used when the image was captured.
When the operator clicks on any thumbnail image and selects “auto drive”, the specimen stage is automatically driven to the position where the image was captured.
The whole-view function allows a whole image of the grid to be acquired and displayed in the stage operation window. The micro-trace function stores and displays the movement path. This allows the operator to easily differentiate between examined and unexamined areas of the specimen.
Image navigation allows the storage of up to 100 stage coordinate positions and tilt angles. When a saved location is recalled, the instrument drives the specimen stage to the saved coordinate position and tilt angle.
API is essential for imaging beam-sensitive specimens and for stabilizing specimens to prevent drift.
Operators can select from several modes, as shown below (Whole scan, Frame scan, and Area Scan), to optimize sample stabilization results.
By means of API, the contrast of examined areas (left) matches the surrounding embedded tissue and resin (right). API effectively minimizes damage and specimen drift during observation.
Auto multiple frame function and Auto panoramic function capture and delineate seamless panoramic images for large format results.
Double-Gap Objective lens design for HC and HR
The highly stable Hyper stage of the HT7700 with ±70° automated tilt capability, coupled with Hitachi’s unique reconstruction algorithms . including Topography Based Reconstruction (TBR)-can be used to create high quality tomographic reconstructions.
The combination of double-axis tomography and Hitachi’s unique reconstruction software can be used to achieve 3D reconstructions with fewer artifacts and more accurate results.
Both Bright Field (BF) and Dark Field (DF) detectors can be added to the HT7700 for STEM analysis.
BF-STEM provides better contrast and image sharpness due to reduced chromatic aberration.
Furthermore, scattered electrons are detected with high sensitivity by means of DF-STEM, resulting in better contrast for low-Z specimens.
When an EDX detector is included, multiple elemental maps can be recorded simultaneously.
EXALENS is a newly designed objective lens for the HT7700.
By achieving a smaller spherical aberration coefficient (Cs), a resolution of 0.144 nm (lattice, accelerating voltage : 120 kV) is obtained.
EXALENS excels at high resolution imaging at lower accelerating voltage, facilitating analyses of soft materials, carbon-based nanomaterials and polymers.
In addition to various Hitachi holders (below), specialty holders for low temperature, heating, in-situ and other experiments are available from several manufacturers.
|Resolution(lattice)||0.204 nm (100 kV)
[0.144 nm (120 kV) for EXALENS : Optional]
(Resolution is guaranteed by specific cameras.)
|Magnification||Zoom||×200 - ×200,000(HC mode)
×4,000 - ×600,000(HR mode)
(Non-rotating zoom system)
[×200 - ×300,000(HC mode)×2,000 - ×800,000(HR mode) for EXALENS : Optional]
|Low Mag||×50 - ×1,000|
|Accelerating voltage||40 - 120 kV|
|Specimen stage||Eucentric goniometer stage|
|Main camera||8 M pixel (vertical to horizontal ratio = 3 : 4)
Other cameras are also available.
This journal addresses a wide range variety of research papers and useful application data using Hitachi science instruments.