Mohit Rattanpal

15 Questions 7 Answers 0 Followers

Questions related from Mohit Rattanpal

What is the relation between "Depth of Field" and "Resolution" in microscopy ?

Please explain with reference to the attached figure. Also, What does "infinite resolution" of a microscope (optical or electron) imply? Similarly what do we mean by "zero resolution"? Does having...

05 June 2024 581 4 View

How do we interpret the origin statement ?

Crystallography Doubt_International Table of Crystallography In the space-group number 185 of ITA (see Attachment), how do we interpret the origin statement?

09 May 2024 9,931 0 View

What is the typical electron beam size in a) Analytical TEM b) HRTEM c) SEM & d) EPMA ?

#ElectronMicroscopy : What is the typical electron beam size in a) Analytical Transmission Electron Microscope b) High Resolution TEM c) Scanning Electron Microscope and d) Electron Probe Micro...

06 June 2023 6,187 12 View

What is the reason behind characteristic feature of the diffraction pattern of a twinned sample?

If the Electron beam direction is contained by the twinning plane, the TEM pattern shows characteristic satellite spots in the spot pattern of the sample (Refer attachment).It is clear from the...

29 May 2023 9,784 1 View

Which is a good book for for understanding Rietveld Refinement method used in X-ray Diffraction?

Can you suggest some good book /literature for understanding the Rietveld refinement method.

05 April 2023 3,094 4 View

How to differentiate between a stacking fault & grain boundaries in a TEM image?

10 December 2022 3,085 2 View

In Kikuchi Diffraction in TEM why one of the pair of lines is Bright and the other is Dark?

Also why the line nearer to the central beam is dark and the one far away from the central beam is Bright?

05 November 2022 9,368 2 View

Any example where the electric field is zero at a point but divergence is not zero there?

Give an example where the electric field is zero at a point but divergence of the electric field is non zero there?

11 March 2022 1,773 6 View

Does sensitization also occur in case of Ferritic Stainless steel?

Intergranular corrosion/sensitization is a well known phenomenon that occurs in 18-8 austenitic stainless steel. Does it also occur in case of ferritic stainless steel? Why/Why not?

22 December 2021 2,684 4 View

How is the resolution of an image affected by the NA of the lens in microscopy?

NA= Numerical Aperture

13 October 2020 2,676 2 View

In microscopy why "smaller the aperture, greater the depth of field"?

The depth of field, decreases as the resolution of the lens is improved, since the criterion for “in focus” becomes more stringent.

13 October 2020 3,792 2 View

Which will have a larger Depth of Field: A Light Microscope or an Electron Microscope? Why/How?

The depth of field is the range of distance along the optical axis in which the specimen can move without detectable loss of sharpness.

12 October 2020 4,756 2 View

An FCC alloy is preferred against a BCC alloy for high temperature creep applications. Why?

Austenitic stainless steels (FCC) has better creep resistance as compared to Ferritic stainless steel.

06 October 2020 422 9 View

How information from Impression creep curve can be used to get stress - strain curve?

what is the similarity between impression creep test and compression test?

22 September 2020 6,744 0 View

What will happen to the image resolution if the accelerating voltage of the SEM is increased?

If we use a high energy beam (say 30 KeV instead of 10KeV) how will the SEM image be affected by the change ?

31 January 2018 9,098 3 View