Scanning electron microscope, Mechanical Engineering

Assignment Help:

1- Explain the rationale of using a small WD to improve resolution.

2- In a tungsten SEM , Why does a high accelerating voltage provide the potential for higher resolution?  Why is this counterintuitive?

3- Comment on the desired coating thickness for an insulating sample where maximum resolution is required. What material/s do you suggest for coating and why?


Related Discussions:- Scanning electron microscope

Determine the cop and power required, In a 15 TR ammonia refrigerator plant...

In a 15 TR ammonia refrigerator plant the condensing temperature is 25 0 C and the evaporative temperature is -10 0 C. The refrigerant ammonia is subcooled by 50C before passing th

Principle of energy conversion, Q.   Describe the principle of energy conve...

Q.   Describe the principle of energy conversion. Show that the reaction of coupling magnetic field on the electrical or mechanical system is essential for the electro - mechanical

Strength of materials advanced, need help with reports on thin thick and co...

need help with reports on thin thick and combined cylinder theory

If engine does not start in wet or damp weather, If Engine Does Not Start i...

If Engine Does Not Start in Wet or Damp Weather Causes of Problem Remedy   Insulators are not clean and dry Fuel t

Find the coefficient of friction between ladder and floor, Find the coeffic...

Find the coefficient of friction between ladder and floor: A ladder of 5m long rests on horizontal ground and leans against smooth vertical wall at an angle of 70° with the h

Pressure relief valve application, Q. Pressure Relief Valve Application? ...

Q. Pressure Relief Valve Application? A general comparison of operational characteristics is given for the different types of pressure relief valves in common industrial use.

Effects of air resistance. , Traveling at a speed of 16.0 m/s, the driver o...

Traveling at a speed of 16.0 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the roa

Steps for F-test, Steps for F-test The Steps followed in the F-Test are...

Steps for F-test The Steps followed in the F-Test are as follows: (A) State the hypothesis: Ho: Relationship between Y and all Xs is not significant. HA: Relationship bet

Mechanics, assumptions made in parallelogram law of forces

assumptions made in parallelogram law of forces

Damping, physical meaning of viscous damping

physical meaning of viscous damping

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd