Why is it easier to use helium ions rather than neutral helium atoms in such a microscope? (a) Helium atoms are not electrically charged, and only electrically charged particles have wave properties. (b) Helium atoms form molecules, which are too large to have wave properties. (c) Neutral helium atoms are more difficult to focus with electric and magnetic fields. (d) Helium atoms have much larger mass than helium ions do and thus are more difficult to accelerate.
Why is it easier to use helium ions rather than neutral helium atoms in such a microscope? (a) Helium atoms are not electrically charged, and only electrically charged particles have wave properties. (b) Helium atoms form molecules, which are too large to have wave properties. (c) Neutral helium atoms are more difficult to focus with electric and magnetic fields. (d) Helium atoms have much larger mass than helium ions do and thus are more difficult to accelerate.
The He-ion microscope is the one that uses a beam of He-ion for its purpose. The use of this microscope is increasing day by day. It is used to get the images of the surfaces so that they can be analysed further. The basic difference between this microscope and SEM is that the latter uses He atoms for its use where a beam of He ions is used in the newly designed He-ion microscope.
Step by step
Solved in 2 steps
