Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

SINGLE PHOTOELECTRON EXCITATION OF PHOSPHORS

S. R. SMITH and J. L. LOWRANCE
Publications of the Astronomical Society of the Pacific
Vol. 84, No. 497 (February 1972), pp. 154-160
Stable URL: http://www.jstor.org/stable/40675197
Page Count: 7
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
SINGLE PHOTOELECTRON EXCITATION OF PHOSPHORS
Preview not available

Abstract

The statistical variation in the output intensity of single-stage image intensifiers has been measured under single photoelectron excitation. Early measurements on tubes with both P-ll and P-20 phosphors indicated that the intensity distribution is not peaked but shows instead the maximum probability of occurrence for the smallest possible output intensities. These measurements, made on only two samples, were at variance with published results of similar measurements on multistage image intensifiers. Later measurements with improved statistics show a peaked distribution. The question is of fundamental importance in the implementation of systems that detect single photoelectron events in a two-dimensional image.

Page Thumbnails

  • Thumbnail: Page 
154
    154
  • Thumbnail: Page 
155
    155
  • Thumbnail: Page 
156
    156
  • Thumbnail: Page 
157
    157
  • Thumbnail: Page 
158
    158
  • Thumbnail: Page 
159
    159
  • Thumbnail: Page 
160
    160