Adam Baggott

5 Questions 3 Answers 0 Followers

Questions related from Adam Baggott

What is the uncertainty in my Raman spectroscopy peak position measurement?

If I have a Raman device that has a spectral resolution of 1 cm-1 then what is the uncertainty associated with my peak position measurements? For instance, if I measure my peak-fitted peak...

08 October 2018 2,599 4 View

What is the best way of characterising grain size in a multiphase ceramic such as silicon nitride? XRD?

I am trying to find out the ratio of alpha to beta grains in a bulk (non-powdered) sample of silicon nitride as well as their size distribution. What technique is best for determining this...

26 March 2018 915 4 View

What is the escape depth of secondary electrons induced by an SEM?

I have read in the literature that secondary electrons (SEs) only escape from the top few nanometres (

12 March 2018 1,932 3 View

Is SEM secondary electron signal affected by residual stress?

I am observing a ceramic under SEM and have noticed that in some stressed regions the signal appears to be brighter. Now I recognise that these brighter regions may just be due to charging but is...

06 September 2017 1,663 5 View

Does the slit diameter and hole size determine the laser spot size on the surface of a sample when using Raman spectroscopy?

Hi there, I'm using Raman spectroscopy to analyse the surface of my sample and need the laser spot size to be as small as possible. I'm using a 100x objective lens (the main determining factor of...

25 October 2016 1,866 1 View