Dear Colleagues,
If we may combine Ethan's quote from Stout and Jensen with Tim's meter:-
With film the estimating of a spot's blackness by eye is not a meter, it originally was a person's eye aided by a reference strip of blackened graduated spot exposures.
With measuring devices the subjectivity goes and it is therefore a meter.
I therefore believe that eg a CCD diffractometer is a valid terminology.
Greetings,
John
Prof John R Helliwell DSc
On 19 Jun 2013, at 19:11, "Edward A. Berry" <[log in to unmask]> wrote:
> Somewhere I got the idea that a diffractometer is an instrument that measures one reflection at a time. Is that the case, and if so what is the term for instruments like rotation camera, weisenberg, area detector? (What is an area detector?).
>
> Logically I guess a diffractometer could be anything that measures diffraction, and that seems to be view of the wikipedia article of that name.
> eab
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