Frequency Change and Elastic Constants of Quartz Irradiated by 1 MeV Electrons

Autor:	Keizo Norisawa, Masakatsu Sakisaka, Takashi Aoki
Rok vydání:	1976
Předmět:	Resonator Materials science Physics and Astronomy (miscellaneous) General Engineering Quartz resonator General Physics and Astronomy Irradiation Function (mathematics) Electron Atomic physics Adiabatic process Fluence Quartz
Zdroj:	Japanese Journal of Applied Physics. 15:749-754
ISSN:	1347-4065 0021-4922
DOI:	10.1143/jjap.15.749
Popis:	The fractions of frequency change Δf/f for quartz resonator plates exposed to 1 MeV electrons are measured as a function of electron fluence up to 2×1017 electrons/cm2, from which the adiabatic elastic constants of c44, c14 and c66 are determined. The ratio of these fractional changes is found to have a correlation of Δc44/c44: Δ|c14|/|c14|: Δc66/c66=1.3: 3.1: 1.0. The Δf/f values against fluence are calculated for various cut angles. The result indicates that the frequency in AT-cut resonators decreases a little and then increases (~10-5), but in BT- and Y-cut resonators a drastic increase and then a decrease (10-3~10-2) are expected.
Databáze:	OpenAIRE
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