Ticket #228 (closed: fixed)
CORRECT_FOR_ATTENUATION algorithm
| Reported by: | Nick Draper | Owned by: | Russell Taylor |
|---|---|---|---|
| Priority: | major | Milestone: | Iteration 14 |
| Component: | Keywords: | ||
| Cc: | Blocked By: | ||
| Blocking: | Tester: |
Description
This correction depends on sample geometry, angle and wavelength, and should be ultimately done point by point. It is common to essentially all ISIS instruments dealing with bulk samples, and should be the subject of a common project. For the purpose of this exercise, we can use the ARIEL approach which is that of calculating a polynomial approximation for each group (the variable is wavelength). Then you apply it to the focussed data (in d-spacing) by using the average 2theta of the bank for the conversion. I can initially supply the pre-calculated polynomials just for test, and I have fairly simple routines to calculate them that can be easily ported.
Change History
comment:7 Changed 12 years ago by Nick Draper
- Status changed from new to closed
- Resolution set to fixed
comment:8 Changed 12 years ago by Russell Taylor
- Status changed from closed to reopened
- Resolution fixed deleted
comment:9 Changed 12 years ago by Russell Taylor
- Status changed from reopened to closed
- Resolution set to fixed
comment:10 Changed 5 years ago by Stuart Campbell
This ticket has been transferred to github issue 1076
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This is easily the most complicated of the algorithms currently on the to-do list. Laurent is going to hold discussions (in particular with Alan Soper) to try and ensure that this algorithm is of general use rather than just diffraction-specific.