Accession Number:

AD0653416

Title:

THE LIMITATIONS FOR NIGHT-TIME DETECTION OF CELESTIAL BODIES EMPLOYING THE INTENSIFIER-STORAGE-IMAGE ORTHICON

Descriptive Note:

Journal article

Corporate Author:

WRIGHT AIR DEVELOPMENT DIV WRIGHT FIELD OH

Personal Author(s):

• Gebel, Radames K.

Report Date:

1961-05-01

Pagination or Media Count:

20.0

Abstract:

This paper calculates the results one may expect by using the image orthicon and intensifier image orthicon for detection of celestial bodies during night time hours. The paper treats, in Part I, the image orthicon without intensifiers and calculates the limit in detection determined by the scanning beam noise. In the Part II, the preamplification necessary for the intensifier section to overcome this scanning beam noise is calculated. The intensifier image orthicon is not necessarily the only arrangement for overcoming this beam noise. Intensifier image converter tubes effectively placed between the telescope and an image orthicon could produce the same results however, such a solution is not suitable for use in flight vehicles because it results in a heavy bulky arrangement. Author

Descriptors:

• *ARTIFICIAL SATELLITES
• *IMAGE ORTHICONS
• *LIGHT
• ASTRONOMICAL CAMERAS
• CLOSED CIRCUIT TELEVISION
• DETECTION
• MATHEMATICAL ANALYSIS
• NIGHT PHOTOGRAPHY
• REPRINTS
• RESOLUTION
• STARS
• TELESCOPES

Subject Categories:

• Astronomy
• Photography
• Optics
• Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE