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" <ber...@upstate.edu> 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
