Development of a DAQ system for a plasma display panel-based X-ray detector (PXD)

Hakjae Lee, Young Jun Jung, Sangheum Eom, Jungwon Kang, Kisung Lee

Research output: Contribution to journalArticle

Abstract

Recently, a novel plasma display panel (PDP)-based X-ray detector (PXD) was developed. The goal of this study is to develop a data acquisition system for use with the PXD as an imaging detector. Since the prototype detector does not have any barrier ribs or a switching device in a detector pixel, a novel pixelation scheme - the line-scan method - is developed for this new detector. To implement line scanning, a multichannel high-voltage switching circuit and a multichannel charge-acquisition circuit are developed. These two circuits are controlled by an FPGA-based digital signal processing board, from which the information about the charge and position of each pixel can be sent to a PC. FPGA-based baseline compensation and switching noise rejection algorithms are used to improve the signal-to-noise ratio (SNR). The characteristic curve of the entire PXD system is acquired, and the correlation coefficients between the X-ray dose, and the signal intensity and the SNR were determined to be approximately 0.99 and 52.9, respectively.

Original languageEnglish
Pages (from-to)213-219
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume784
DOIs
Publication statusPublished - 2015 Jun 1

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Keywords

  • DAQ
  • FPGA
  • Imaging
  • PXD

ASJC Scopus subject areas

  • Instrumentation
  • Nuclear and High Energy Physics

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