ULTRASONIC-ATTENUATION MEASUREMENTS IN NEUTRON-IRRADIATED QUARTZ - THE INFLUENCE OF HEAT-TREATMENT FOR A DOSE OF 4.7X10(19) N CM(2)/

Citation
V. Keppens et C. Laermans, ULTRASONIC-ATTENUATION MEASUREMENTS IN NEUTRON-IRRADIATED QUARTZ - THE INFLUENCE OF HEAT-TREATMENT FOR A DOSE OF 4.7X10(19) N CM(2)/, Radiation effects and defects in solids, 137(1-4), 1995, pp. 1395-1398
Citations number
9
Categorie Soggetti
Physics, Condensed Matter","Nuclear Sciences & Tecnology
ISSN journal
10420150
Volume
137
Issue
1-4
Year of publication
1995
Pages
1395 - 1398
Database
ISI
SICI code
1042-0150(1995)137:1-4<1395:UMINQ->2.0.ZU;2-U
Abstract
Ultrasonic attenuation measurements are carried out for a quartz speci men irradiated with 4.7 x 10(19) n/cm(2) and annealed at 700 degrees C during 1 hour. This dose is interesting because it is situated in the 'threshold region'. The measurements are carried out as a function of temperature (0.3-20 K) for different frequencies (80-300 MHz). The da ta show a behaviour that is qualitatively similar to previous observat ions for a much lower dose, and indicate a tendency to return to the c rystalline state.