Toward Solving The Lost Photon Problem In Image Intensifiers

R. H. Cromwell

doi:10.1117/12.968137

13 October 1986 Toward Solving The Lost Photon Problem In Image Intensifiers

R. H. Cromwell

Proceedings Volume 0627, Instrumentation in Astronomy VI; (1986) https://doi.org/10.1117/12.968137
Event: 1986 Astronomy Conferences, 1986, Tucson, United States

Abstract

A summary is given of measurements of the photoelectron counting efficiency of a variety of image intensifiers manufactured by several different manufacturers. With one exception, the counting efficiency is disappointingly low. Typically only slightly over half of the photoelectrons from the first photocathode produce a detectable signal on the output phosphor screen in most diode-type intensifiers. For microchannel plate intensifiers, the counting efficiency is even less. Results are given of experiments intended to produce diode-type intensifiers having improved counting efficiency. Improvements have been achieved through refinements in the manufacturing steps of the phosphor screen, the tube component identified as responsible for the lost photoelectron pulses in diode-type tubes. The best tubes so far have counting efficiencies of 70%, which represent an improvement by a factor of about 1.4.

Citation Download Citation

R. H. Cromwell "Toward Solving The Lost Photon Problem In Image Intensifiers", Proc. SPIE 0627, Instrumentation in Astronomy VI, (13 October 1986); https://doi.org/10.1117/12.968137

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available