Simulation Project powder: Improve your instrument: Difference between revisions

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ucph>Tommy
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Latest revision as of 22:15, 18 February 2020

In this problem, you should optimize your instrument with respect to intensity and/or \(q\)-resolution. Anything goes as long as it works.

The DMC instrument will be upgraded over the next few years, and you may be able to find a suggestion for improvement that is better than the planned. Perhaps you can save PSI a few million Swiss Francs?

The best instrument is the one that gives the best results in terms of intensity and resolution combined. A good figure-of-merit could be peak intensity squared divided by peak width (and it is not allowed to increase the structure factor).

A few suggestions

It may be possible to optimize guide parameters and geometry, monochromator parameters and geometry, distances, collimations, detector dimensions. Note that McStas has a built-in optimizer function. The details of this is best explained in the class.