title: Pressure dependence of X-rays produced by an LiTaO3 single crystal at the pressures of 1-20Pa.
abstract: The energy spectra of X-rays produced by an LiTaO3 single crystal have been measured at pressures of 1-20Pa. The energy spectra showed that the endpoint energy and the amount of X-rays gradually increased with the decrease of pressure at 5-8Pa and abruptly increased around 4Pa and below. A maximum endpoint energy of 70keV was obtained using the LiTaO3 single crystal with 5mm thickness at a pressure of 3Pa. The change of X-rays produced by the LiTaO3single crystal was discussed in relation to the breakdown potential at the pressures.
authors.affiliation: Graduate School of Health Sciences, Okayama University, 2-5-1shikata-cho, Kita-ku, Okayama-shi, Okayama 700-8558, Japan. Electronic address: hana@md.okayama-u.ac.jp.
authors.forename: Katsumi
authors.initials: K
authors.lastname: Hanamoto
authors.affiliation: Graduate School of Health Sciences, Okayama University, 2-5-1shikata-cho, Kita-ku, Okayama-shi, Okayama 700-8558, Japan.
authors.forename: Takahiro
authors.initials: T
authors.lastname: Kataoka
authors.affiliation: Graduate School of Health Sciences, Okayama University, 2-5-1shikata-cho, Kita-ku, Okayama-shi, Okayama 700-8558, Japan.
authors.forename: Kiyonori
authors.initials: K
authors.lastname: Yamaoka
keywords: Breakdown potential; LiTaO(3); Pressure; Pyroelectric crystal; X-ray