QNS measurements of water in biological and model systems

Journal Article · Fri Jan 01 00:00:00 EST 1982 · AIP Conf. Proc.; (United States)

DOI:https://doi.org/10.1063/1.33680· OSTI ID:6391828

Trantham, E C; Rorschach, H E; Clegg, J C; Hazlewood, C F; Nicklow, R M

Results are presented on the quasi-elastic spectra of 0.95 THz neutrons scattered from pure water, a 20% agarose gel and cysts of the brine shrimp (Artemia) of hydration 1.2 gms H/sub 2/O per gm of dry solids. The lines are interpreted with a two-component model in which the hydration water scatters elastically and the free water is described by a jump-diffusion correlation function. The results for the line widths GAMMA(Q/sup 2/) are in good agreement with previous measurements for the water sample but show deviations from pure water at large Q for agarose and the Artemia cysts that suggest an increased value of the residence time in the jump-diffusion model.

• Research Organization: Rice Univ., Houston, TX (United States)
• OSTI ID: 6391828
• Journal Information: AIP Conf. Proc.; (United States), Vol. 89
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
59 BASIC BIOLOGICAL SCIENCES
ANIMAL CELLS
DIFFUSION
GELS
WATER
CORRELATION FUNCTIONS
EXPERIMENTAL DATA
LINE WIDTHS
MATHEMATICAL MODELS
NEUTRON SPECTRA
NEUTRONS
SCATTERING
BARYONS
COLLOIDS
DATA
DISPERSIONS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
HYDROGEN COMPOUNDS
INFORMATION
NUCLEONS
NUMERICAL DATA
OXYGEN COMPOUNDS
SPECTRA
360602* - Other Materials- Structure & Phase Studies
360402 - Polymers & Plastics- Structure & Phase Studies- (-1987)
550200 - Biochemistry