Paper Title:
Gas Electron Multipliers for Potential Applications to Digital Radiography
  Abstract

The gas electron multiplier (GEM), placed in the drift volume of a conventional gas detector, is a conceptually simple device for producing a large gas gain by concentrating the drift electric field over a very short distance to the point that electron avalanching occurs. This device consists of a thin insulating foil of several tens of μm in thickness, covered on each side with a thin metal layer, with tiny holes, usually 100 μm or less in diameter, and with a spacing of 100-200 μm through the entire foil, perforated by using chemical etching or high-powered laser beam technique. In this study, we have investigated its operating properties with various experimental conditions and demonstrated the possibility of using this device as a digital X-ray imaging sensor, by acquiring X-ray images based upon the scintillation lights of the GEM with a standard CCD camera.

  Info
Periodical
Key Engineering Materials (Volumes 321-323)
Edited by
Seung-Seok Lee, Joon Hyun Lee, Ik Keun Park, Sung-Jin Song, Man Yong Choi
Pages
125-128
DOI
10.4028/www.scientific.net/KEM.321-323.125
Citation
H. S. Cho, S. I. Choi, H. Y. Kim, B. S. Lee, S. Kim, "Gas Electron Multipliers for Potential Applications to Digital Radiography", Key Engineering Materials, Vols. 321-323, pp. 125-128, 2006
Online since
October 2006
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Price
$32.00
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