To minimize problems associated with charging and damage during imaging, He ion microscopy is sometimes used for imaging biological samples instead of electron microscopy. In

Academic Writing advanced-physics To minimize problems associated with charging and damage during imaging, He ion microscopy is sometimes used for imaging biological samples instead of electron microscopy. In

advanced-physics

To minimize problems associated with charging and damage during imaging, He ion microscopy is sometimes used for imaging biological samples instead of electron microscopy. In

To minimize problems associated with charging and damage during imaging, He ion microscopy is sometimes used for imaging biological samples instead of electron microscopy. In this imaging technology, He + ions are accelerated by an applied voltage, gaining kinetic energy of ??=12??2=??KE=12mv2=eV, where ?v is the velocity, ?e is the elementary charge = 1.602E-19 C, and ?V is the applied voltage. Assuming the mass of an He + ion is 4.003 amu, what voltage should be used to accelerate the He + ions to achieve a DeBroglie wavelength of 1 pm (1E-12 m)? Hint: before putting in numbers, derive an equation for the voltage, ?V, in terms of the other variables and constants. Hint #2: include conversion of mass to kg in your calculation!

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