| 释义 |
diffractometer|dɪfrækˈtɒmɪtə(r)|
[f. diffract v. + -o + -meter.]
An instrument for measuring diffraction; esp. an instrument used in diffraction analysis in Crystallography.
1909in Webster. 1926Proc. R. Soc. B. XCIX. 275 Certain size changes of erythrocytes have been followed under the ‘diffractometer’. 1954Philips Techn. Rev. XVI. 123 The new instrument, which from now on will be termed an X-ray diffractometer..comprises..a basic diffraction unit..a Geiger counter goniometer, and an electronic circuit panel with automatic recorder. 1955Gloss. Terms Radiol. (B.S.I.) 29 Neutron diffractometer, an instrument..for measuring with a neutron beam..the intensities of the diffracted beams at different levels. 1960Times Rev. Industry May 31/1 Crystal structure can be examined by means of a diffractometer. 1961Engineering 15 Sept. 333 Our instrument, known as the linear X-ray diffractometer, incorporates an analogue computer, which computes the crystal and detector settings for each of the many thousands of X-ray reflections that have to be measured for a complete determination of atomic structure. 1970New Scientist 21 May 383/1 A new type of neutron diffractometer—the ‘hedgehog’ neutron diffraction spectrometer—has been developed. |