Letter | Published:

Multiple Monochromators

Naturevolume 169pages976977 (1952) | Download Citation



IN a recent communication, Rochester and Martin1 have commented on my note2 describing the construction of multiple monochromators, and claim that two similar ideas have been suggested previously. One of these suggestions, which is merely an extension of the Littrow principle, had not been published; the other3, so far as I am aware, has not been put into practice, and it remains to be proved that the method is practicable. Neither of these proposed methods can be extended for the construction of other than double monochromators. The same limitation applies also to the modification of my method proposed by Rochester and Martin. Comments on this will be reserved until they have tested this modification and published the results obtained.

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  1. 1

    Rochester, G. C. O., and Martin, A. E., Nature, 168, 785 (1951).

  2. 2

    Walsh, A., Nature, 167, 810 (1951).

  3. 3

    Perkin–Elmer Instrument News, 1, No. 4, 3 (1950).

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  1. Chemical Physics Section, Division of Industrial Chemistry, Commonwealth Scientific and Industrial Research Organization, Melbourne

    • A. WALSH


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