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Proceedings Paper

Development of an x-ray generator using a pyroelectric crystal for x-ray fluorescence analysis on planetary landing missions
Author(s): Hiroki Kusano; Yuki Oyama; Masayuki Naito; Hiroshi Nagaoka; Haruyoshi Kuno; Eido Shibamura; Nobuyuki Hasebe; Yoshiharu Amano; Kyeong J. Kim; José A. Matias Lopes
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Paper Abstract

The chemical element abundance on planetary surface is essential for planetary science. We have been developing an active X-ray spectrometer (AXS), which is an in-situ chemical element analyzer based on the X-ray florescence analysis for future planetary landing missions. The AXS consists of an X-ray detector and multiple X-ray sources. Although a pyroelectric X-ray generator is promising for the AXS as an X-ray source, the raise of emission X-ray intensity is necessary for short-time and precise determination of elemental composition. Also, in order to enhance the detection efficiency of light major elements such as Mg, Al, and Si, we have tested the low energy X-ray emission by changing the target material. In this study, the X-ray emission calculation at the target by Monte Carlo simulation and the X-ray emission experiments were carried out. More than 106 cps of the time-averaged X-ray emission rate was achieved in maximum using a LiTaO3 crystal with 4 mm thickness and Cu target with 10 um thickness. The performance of pyroelectric X-ray generator is presented in this paper.

Paper Details

Date Published: 5 September 2014
PDF: 11 pages
Proc. SPIE 9213, Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI, 921316 (5 September 2014); doi: 10.1117/12.2061547
Show Author Affiliations
Hiroki Kusano, Waseda Univ. (Japan)
Yuki Oyama, Waseda Univ. (Japan)
Masayuki Naito, Waseda Univ. (Japan)
Hiroshi Nagaoka, Waseda Univ. (Japan)
Haruyoshi Kuno, Waseda Univ. (Japan)
Eido Shibamura, Waseda Univ. (Japan)
Nobuyuki Hasebe, Waseda Univ. (Japan)
Yoshiharu Amano, Waseda Univ. (Japan)
Kyeong J. Kim, Korea Institute of Geoscience & Mineral Resources (Korea, Republic of)
José A. Matias Lopes, Univ. de Coimbra (Portugal)
Instituto Superior de Engenharia de Coimbra (Portugal)

Published in SPIE Proceedings Vol. 9213:
Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XVI
Arnold Burger; Larry Franks; Ralph B. James; Michael Fiederle, Editor(s)

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