Data Processing Flashcards
What is indexing?
Assigns the unit cell and (Laue) symmetry and then can assign hkl and I
What is integration?
The I values of all pixels within a diffraction spot are added together –> record more than once so these can be averaged.
What is multiplicity?
How many times the diffraction has been repeated
What is scaling and merging?
There is a sigma value for each hkl (diffraction spot) from recording entire rotation more than once.
What does data processing essentially do?
Converts image into a list of hkls, intensities and sigma values
What is Rmerge?
The difference between the same reflection collected each time.
Do you want the value of Rmerge to low or high?
Low
What is completeness?
How many theoretical reflections were there and how many of these were captured.
