QNS measurements on water in biological and model systems

Conference · Thu Jan 01 00:00:00 EST 1981

OSTI ID:6335317

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: Oak Ridge National Lab., TN (USA); Miami Univ., Coral Gables, FL (USA); Baylor Univ., Houston, TX (USA). Coll. of Medicine
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6335317
• Report Number(s): CONF-810840-1; ON: DE81028576; TRN: 81-015740
• Resource Relation: Conference: Symposium on neutron scattering, Argonne, IL, USA, 12 Aug 1981
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AGAR
NEUTRON SPECTRA
PROTONS
DIFFUSION
SHRIMP
WATER
EXPERIMENTAL DATA
LINE WIDTHS
MATHEMATICAL MODELS
QUASI-ELASTIC SCATTERING
BARYONS
CARBOHYDRATES
COLLOIDS
DATA
DECAPODS
DIRECT REACTIONS
DISPERSIONS
ELEMENTARY PARTICLES
FERMIONS
HADRONS
HYDROGEN COMPOUNDS
INFORMATION
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
POLYSACCHARIDES
QUASI-FREE REACTIONS
SACCHARIDES
SCATTERING
SPECTRA
654003* - Radiation & Shielding Physics- Neutron Interactions with Matter
560111 - Radiation Effects on Biochemicals- In Vitro- (-1987)