Accession Number:

AD0631048

Title:

APPLICATION OF ELECTRO-OPTICS TO AURORAL STUDIES. PHASE 2

Descriptive Note:

Final rept., phase 2, Nov 1963-Nov 1965

Corporate Author:

GENERAL ELECTRIC CO SCHENECTADY NY RESEARCH AND DEVELOPMENT CENTER

Personal Author(s):

Report Date:

1965-12-01

Pagination or Media Count:

56.0

Abstract:

During 1964-65 a continuing investigation was performed to examine the feasibility of obtaining information on the time-changing characteristics of the aurora and night air glow by low-light level image orthicons at the Radio- Optical Observatory of the General Electric Companys Research and Development Center in Schenectady, New York. Although no auroras were detected during this interim period, wavelength and intensity calibrations on a spectrograph of special design using the image orthicon detector were accomplished with spectral lamps and night air glow emissions. Included spectral photographs of night air glow demonstrate that the image orthicon is at least 1000 times faster than photographic film when detecting weak point or line sources under high contrast conditions. Twenty photoelectrons are sufficient to record a spectral line. Sensitivity calibrations were also performed on a 16 in f20 telescope, where the North Polar Sequence of Stars provided a standard calibrated star field. Within 10 seconds, 18th magnitude stars were detected. Further analysis is given on the data recorded during the September 1963 aurora and initially reported in the Final Report of Phase I, 1963 - AFCRL 64-209.

Subject Categories:

  • Atmospheric Physics
  • Optics
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE