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Proceedings Paper

High-resolution hard x-ray detector with scintillator-deposited charge-coupled device
Author(s): E. Miyata; N. Anabuki; N. Tawa; K. Mukai; T. Miyauchi; H. Tsunemi; K. Miyaguchi
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Paper Abstract

We report on a new photon-counting detector possessing unprecedented spatial resolution, moderate spectral resolution and high background-rejection capability for 0.1-100 keV X-rays. It consists of an X-ray charge-coupled device (CCD) and scintillator. The scintillator is directly deposited on the back surface of the X-ray CCD. Low-energy X-rays below 10 keV can be directly detected in the CCD. The majority of hard X-rays above 10 keV pass through the CCD but can be detected in the scintillator, generating visible light photons there. Since CCDs have a moderate detection effciency for visible light photons, they can be absorbed by the CCD. We evaluated the spectroscopic performance for hard X-rays at the synchrotron facility, SPring-8, and found a good linear relationship between the incident X-ray energy and the pulse height up to 80 keV. The on-axis image of the hard X-ray telescope, supermirror, was measured by our device at 40 keV. A sharp core and the wing structure can be clearly imaged and high imaging capability of the SD-CCD can be demonstrated.

Paper Details

Date Published: 16 September 2005
PDF: 8 pages
Proc. SPIE 5922, Hard X-Ray and Gamma-Ray Detector Physics VII, 59220U (16 September 2005); doi: 10.1117/12.615626
Show Author Affiliations
E. Miyata, Osaka Univ. (Japan)
N. Anabuki, Osaka Univ. (Japan)
N. Tawa, Osaka Univ. (Japan)
K. Mukai, Osaka Univ. (Japan)
T. Miyauchi, Osaka Univ. (Japan)
H. Tsunemi, Osaka Univ. (Japan)
K. Miyaguchi, Hamamatsu Photonics K.K. (Japan)

Published in SPIE Proceedings Vol. 5922:
Hard X-Ray and Gamma-Ray Detector Physics VII
Ralph B. James; Larry A. Franks; Arnold Burger, Editor(s)

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