电子光学系统
分辨率:
高真空模式:3.0 nm(加速电压30 kV时)
低真空模式:4.0 nm(加速电压30 kV时)
加速电压:0.5 kV 至 30 kV(可调步进)
电子枪类型:钨灯丝(W-filament)热发射电子枪
样品室与样品台
样品室尺寸:直径330 mm,高度270 mm(大样品室设计)
样品台移动范围:
X/Y轴:0–100 mm(马达驱动)
Z轴:1.5–30 mm(工作距离可调)
倾斜:-10° 至 +90°
旋转:360°
最大样品尺寸:直径100 mm(高度受工作距离限制)
探测器系统
二次电子探测器(SE):标准ETD探测器,适用于高分辨率成像
背散射电子探测器(BSE):可选配,用于成分对比成像
低真空模式(LV-SEM):支持不导电样品无需镀膜直接观察
能谱仪(EDS):可选配(如牛津仪器EDS系统),用于元素成分分析
真空系统
真空模式:高真空(≤10⁻³ Pa)和低真空(10–150 Pa)
抽真空时间:约3分钟(快速抽气设计)
放大倍数与成像
放大倍数范围:5× 至 300,000×(连续可调)
图像输出:支持数字图像采集(标配或选配CCD相机)
软件与控制
操作软件:JEOL专用控制平台(支持自动聚焦、图像拼接、3D成像等)
兼容性:支持第三方分析软件(如EDS数据处理)
Electron Optical System
Resolution
High vacuum mode: 3.0 nm (at 30 kV)
Low vacuum mode: 4.0 nm (at 30 kV)
Accelerating Voltage: 0.5 kV to 30 kV (adjustable in steps)
Electron Gun: Tungsten (W) filament thermionic emission gun
Specimen Chamber and Stage
Chamber Size: 330 mm diameter × 270 mm height (large chamber design)
Stage Movement:
X/Y-axis: 0–100 mm (motor-driven)
Z-axis: 1.5–30 mm (adjustable working distance)
Tilt: -10° to +90°
Rotation: 360°
Max. Specimen Size: 100 mm diameter (height limited by working distance)
Detection System
Secondary Electron Detector (SE): Standard ETD detector for high-resolution imaging
Backscattered Electron Detector (BSE): Optional for compositional contrast imaging
Low Vacuum Mode (LV-SEM): Enables direct observation of non-conductive samples without coating
Energy Dispersive X-ray Spectrometer (EDS): Optional (e.g., Oxford Instruments EDS) for elemental analysis
Vacuum System
Vacuum Modes: High vacuum (≤10⁻³ Pa) and low vacuum (10–150 Pa)
Pump-down Time: ~3 minutes (fast evacuation design)
Magnification and Imaging
Mgnification Range: 5× to 300,000× (continuously adjustable)
Image Output: Digital image capture (standard or optional CCD camera)
Software and Control
Operating Software: JEOL-specific control platform (supports auto-focus, image stitching, 3D imaging, etc.)
Compatibility: Integrates with third-party analysis software (e.g., EDS data processing)
材料科学:金属、陶瓷、复合材料的断口分析、晶粒观察。
电子工业:PCB、半导体器件缺陷检测。
地质学:矿物成分与微观结构研究。
生物学:细胞、昆虫、植物样本的表面形貌观察(低真空模式)。
纳米技术:纳米颗粒、薄膜材料的尺寸与形貌表征。
Materials Science: Fracture analysis, grain structure studies (metals, ceramics, composites).
Electronics Industry: Defect inspection in PCBs, semiconductors, and microdevices.
Geology: Mineral composition and microstructure characterization.
Biology: Surface morphology of cells, insects, and plant tissues (low vacuum mode).
Nanotechnology: Size and morphology analysis of nanoparticles, thin films.
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