Vinay Mishra

Hello David, I have another query I wanted to ask you. Please see the attached image. Before asking this, I understand that the size of my image is not enought to give accurate value of the roughness. But just wanted to know this. 1. The Row and Column statistics, when used, the curve generated, is it the average roughness profile for the whole topography? 2. The value 198, is the average Roughness value? 3. Again, I wish to request you exactly in words, how will you read the graph? For the position...

Hello David, I have another query I wanted to ask you. Please see the attached image. Before asking this, I understand that the size of my image is not enought to give accurate value of the roughness. But just wanted to know this. 1. The Row and Column statistics, when used, the curve generated, is it the average roughness profile for the whole topography? 2. The value 198, is the average Roughness value? 3. Again, I wish to request you exactly in words, how will you read the graph? For the position...

Hello David, I have another query I wanted to ask you. Please see the attached image. Before asking this, I understand that the size of my image is not enought to give accurate value of the roughness. But just wanted to know this. 1. The Row and Column statistics, when used, the curve generated, is it the average roughness profile for the whole topography? 2. The value 198, is the average Roughness value? 3. Again, I wish to request you exactly in words, how will you read the graph? For the position...

I understand now. Thanks David.

Hi David thanks for reply. I found the paper thanks for the reply. I will read the papaer and if I might any question I will ask you. I hope thats ok with you. My last question is "If I put an intersection line and if coordinates are (0.200µm, 0.915µm^-1)"- does it should be read as. I am requesting for a sentence which reads the values. think it as physical significance. Kindly reply regards Vinay

Thank you for your time and your reply David. I have couple of more queries- Also note that the scan sizes are way too small for roughness measurement. What scan size should it be in general for more appropriate estimation? For SPM43 roughness will be underestimated maybe by 40-50%, for SPM85 a bit less. How are you saying this, I mean how can we be knowing that there will be underestimation by 40-50% ? Secondly, Why will SPM85 a bit less? See https://iopscience.iop.org/article/10.1088/1361-6501/ab8993,...

Hello, First of all thanks for the support in advance. I have couple of questions regarding roughness estimation. I am working with very rough surface (.ibw files attached along with images). When I choose "calculate roughness parameter" option, I have to select a line on the topography. Here the have to specify the "cut-off" and then the algorithm takes out surface waviness texture and separates roughness for that " line. Please note that Surface SMP85 should be more rough than SMP43 which is kind...