Untitled Deck Flashcards
What is the primary function of optical microscopes?
Optical microscopes use visible light (or UV) to sharply magnify samples.
What is a Stereo Microscope?
A Stereo Microscope, also known as a dissecting microscope, magnifies up to about 100x and provides a 3-dimensional view of the specimen.
What is the maximum magnification of a Compound Microscope?
The maximum useful magnification of a Compound Microscope is about 1000x.
What is a Confocal Laser Scanning Microscope?
Confocal Laser Scanning Microscopes can scan a sample in depth and assemble it into a 3D image using a computer.
What are Electron Microscopes used for?
Electron Microscopes are the most advanced microscopes, using accelerated electrons to magnify objects up to 2,000,000x.
What is the advantage of Electron Microscopes over light microscopes?
Electron Microscopes have a higher resolving power due to the much shorter wavelength of high energy electrons.
What is required to prepare a specimen for an Electron Microscope?
Specimens may require complete dehydration and can be coated with a sleek layer of metal for easy observation.
What are Scanning Electron Microscopes characterized by?
Scanning Electron Microscopes have lower magnifying power but provide a 3D perspective of objects.
What do X-ray Microscopes use to create images?
X-ray Microscopes use a beam of x-rays to create high-resolution 3D images.
What is a significant advantage of X-ray Microscopes?
X-ray Microscopes allow observing the structure of living cells and can slice together thousands of images to generate a single 3D X-ray image.
What is the technology behind Scanning Helium Ion Microscopes?
Scanning Helium Ion Microscopes use a beam of Helium ions to generate images, leaving the sample mostly intact.
What do Scanning Acoustic Microscopes use to generate images?
Scanning Acoustic Microscopes use focused sound waves to generate images.
What is the primary application of Scanning Acoustic Microscopes?
They are primarily used to study the physical properties of biological structures and detect small cracks or tensions in materials.
What is the current status of Neutron Microscopes?
Neutron Microscopes are still under experimental stages and may offer better contrast than other forms of microscopy.
What do Scanning Probe Microscopes visualize?
Scanning Probe Microscopes help visualize individual atoms by measuring the surface structure of the sample.
How do Scanning Probe Microscopes generate images?
The image of the atom is computer-generated based on the electrical current that flows through a small tip measuring the surface structure.
