What Is the Working Environment for Nanotechnology?
“Hi. This is Lloyd Tran. I’m the director of the California Institute of Nanotechnology. I would like to show you, briefly, this is the scanning electron microscope (SEM). This is a very high end, sensitive electron microscope, allowing to magnify things many thousands of times, even a couple hundred thousand times. So we can have the ability to examine, to observe, to look at substances, a sample in a large magnification way. Basically, this is an instrument where we use the electron beams, which is a source of electron beams up here. And when you turn the power on, after it warms up and you activate it, the electron beam will send the rays of electrons through this column. OK? And around here we have the electron magnetic lens, which allows us to focus and direct the beams of electrons to certain targets. By manipulating those knobs, we can redirect the electron to the sample. When the electron beam hits the specimen, it reflects a certain direction between the electron and the surfa
