Multi-Segment Position-Sensitive Detector for an X-ray Imaging Crystal Spectrometer
J. Korean Phy. Soc. 2009; 54: 592~596
Published online February 14, 2009 © 2009 The Korean Physical Society.

Abstract
A two-dimensional segmented position sensitive detector (PSD) as a part of an X-ray imaging crystal spectrometer (XICS) for use in tokamak plasma experiments was developed. It is based on a multi-wire proportional counter (MWPC) using a delay-line readout method. The MWPC, necessary for recording plasma image data, provides the combined advantages of low neutron radiation sensitivity and large sensitive detection area. The fabricated PSD for the XICS is a four-segment MWPC that can be used in intense X-ray photon environments.
Keywords: MWPC, Segment detector, Rate capability, Plasma diagnosis, XICS


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