Accession Number : AD0010920


Title :   AMPLITUDES OF VIBRATION AND X-RAY SCATTERING OF CRYSTALLINE LITHIUM HYDRIDE AND LITHIUM DEUTERIDE: 300 K TO 20 K


Descriptive Note : Technical rept.


Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS


Personal Author(s) : Stambaugh, C K ; Harris, P M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/010920.pdf


Report Date : Jan 1953


Pagination or Media Count : 53


Abstract : Intensities of Laue-Bragg scattering from powdered crystals of LiH and LiD were obtained at 20, 77 and 194, and 303 K with a recording G-M counter spectrometer and a special Dewar specimen mount. Relative crystal-structure factors and relative atomic form factors were calculated from the intensities; absolute atomic form factors and characteristic temperatures were obtained from the relative form-factor values. Temperature coefficients and amplitudes of vibration were calculated from the characteristic temperatures. Electron- density distributions for KiH, obtained from the absolute atomic-form-factor data, were used to calculate radial charge distributions. Evidence was discovered which suggested a change in the ionization state of the crystals with changes in temperature.


Descriptors :   *LITHIUM COMPOUNDS , VIBRATION , HYDRIDES , X RAYS , DEUTERIUM , CRYSTALLOGRAPHY , SCATTERING , X RAY DIFFRACTION


Subject Categories : Crystallography


Distribution Statement : APPROVED FOR PUBLIC RELEASE