Radiation-induced transient acoustic loss in quartz crystals

Journal Article · Sat Jun 15 04:00:00 EDT 1985 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.335258· OSTI ID:5789797

Koehler, D R; Martin, J J

When exposed to pulsed ionizing radiation, quartz oscillator crystals can exhibit transient acoustic losses (a decrease in Q) and transient frequency shifts. Although these changes are usually most pronounced in unswept quartz, they have also been seen in swept quartz. We have directly measured the transient acoustic loss in both synthetic and natural quartz. The synthetic quartz samples included hydrogen and lithium swept units. Irradiations were accomplished at REBA, a flash x-ray facility at Sandia Laboratories. Log decrement acoustic loss measurements were made over the 110--400 K temperature range and show a time dependence similar to a t/sup -1//sup ///sup 2/ behavior characteristic of one-dimensional diffusion. The transient loss showed a broad temperature dependence ascribed to alkali ions moving along the Z-axis channels. Peaks at 360 and 380 K in the transient loss temperature spectra are thought to be due to an unstable defect which momentarily traps the alkali ion.

• Research Organization: Sandia National Laboratories, Albuquerque, New Mexico 87185
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5789797
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 57:12; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
ACOUSTIC TESTING
CHALCOGENIDES
ELASTICITY
ENERGY LOSSES
LOSSES
MATERIALS TESTING
MECHANICAL PROPERTIES
MINERALS
NONDESTRUCTIVE TESTING
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL RADIATION EFFECTS
QUARTZ
RADIATION EFFECTS
SILICON COMPOUNDS
SILICON OXIDES
TENSILE PROPERTIES
TESTING
TRAPS