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Title: Neutron molecular spectroscopy using a white beam time-of-flight spectrometer

Journal Article · · J. Chem. Phys.; (United States)
DOI:https://doi.org/10.1063/1.435484· OSTI ID:5330791

An inverted-geometry white beam TOF neutron spectrometer using an extended graphite crystal analyzer was constructed at the CP-5 reactor at Argonne. A performance test of the spectrometer for incoherent inelastic scattering studies was made with five selected molecular solids. The results demonstrate the utility of such a spectrometer for investigation of lattice vibrational spectra of hydrogenous compounds in the energy range 0--400 cm/sup -1/. We describe design considerations and energy resolution of the spectrometer, and discuss observed low-frequency spectra of acetic acid (CH/sub 3/COOH, CD/sub 3/COOH, and CH/sub 3/COOD), cyclohexane, and cyclopentane.

Research Organization:
Solid State Science Division, Argonne National Laboratory, Argonne, Illinois 60439
OSTI ID:
5330791
Journal Information:
J. Chem. Phys.; (United States), Vol. 68:1
Country of Publication:
United States
Language:
English