Used PHILIPS / FEI Quanta 250 FEG #293616714 for sale

PHILIPS / FEI Quanta 250 FEG is a field emission gun scanning electron microscope (FEG-SEM) used in the imaging and analysis of biological and inorganic samples at high magnifications. The microscope features a high-performance field emission gun (FEG) cathode, high-stability voltage supply and high resolution, enabling image resolutions down to 0.8 nm. FEI Quanta 250 FEG is equipped with an automated stage microscope, providing automatic stage movement for x, y and z axes together with high-speed focusing and auto-alignment. It uses a multi-dimensional imaging (MidiVac) system which provides variable pressure, anodic and varying gas composition operation to image samples in wet, vacuum and variable environment conditions. The microscope has a variable pressure (VP) environmental scanning electron microscope (ESEM) capability that allows imaging of samples in both dry and fluid conditions, allowing imaging and analysis of samples without the need for traditional sample preparation. For dry imaging, the sample chamber can be evacuated to a pressure of 10-2 to 10-6 mbar. For moist imaging, the sample chamber is filled with gas at a pressure of 1-100 mbar. PHILIPS Quanta 250 FEG has a host of detectors for performing various analyses such as bright field (BF), dark field (DF) and secondary electron (SE) imaging; energy dispersive spectroscopy (EDS) with type 130 and 160 detectors for elemental analysis; and X-ray analysis with an optional X-ray detector. Its scanning method consists of an integrated series of electron beams with varying energy ranges for imaging, composition analysis and orientation determination, offering unique imaging and analysis capabilities. Quanta 250 FEG is a versatile, compact, energy-efficient and cost-effective solution that offers superior performance and image quality, allowing users to view, analyze and characterize samples more efficiently than ever before. With a variety of features and accessories, this microscope can be configured to meet a users' exact application requirements, making it an ideal choice for those looking to improve their imaging capabilities.