Multipurpose neutron-diffraction instrumentations

Crystal Structures of Cubic and Trigonal Yttrium Hypocarbides a Dimorphically Interphased Single-Crystal Study.

“…The total cross section obtained by means of the transmission cell (Atoji, 1964) was 11.3 ± 0.4 barns per YC^j. at the neutron energy of 0.0716 eV or the neutron wavelength of 1.069 A.…”

“…The neutron diffraction pattern of yttrium hypocarbide obtained using an automatic multipurpose diffractometer (Atoji, 1964 and is shown in Fig. 12.…”

Neutron diffraction cryo-orienter

“…The amount of crystal reorientation about different zones required to permit collection of more nearly complete data can be lessened by the addition of an elevation motion to the detector, which allows normal beam geometry to be used. (3) An alternate approach is to mount the crystal on a small but precise mechanical device in the cryostat (Atoji, 1965). The crystal can be oriented and reoriented by cable control from outside of the cryostat.…”

“…(3) An alternate approach is to mount the crystal on a small but precise mechanical device in the cryostat (Atoji, 1965). The crystal can be oriented and reoriented by cable control from outside of the cryostat.…”

Crystallographers

“…The X-ray method is employed for the prealignment so as to attain the least correction in the multiparameter angular settings of the neutron-scattering and magnetic-field vectors. The final translational alignment is made externally with the centering devices for the whole cryostat-magnet assembly (Atoji, 1965). A miniaturized model of the one-arc one-rotor goniometer head (Davies & Mathieson, 1965) is also being designed.…”