Accession Number : ADA267045


Title :   Absolute, Extreme Ultraviolet Solar Spectral Irradiance Monitor (AESSIM)


Descriptive Note : Annual rept. 15 Nov 91-14 Nov 92,


Corporate Author : HARVARD COLL OBSERVATORY CAMBRIDGE MA


Personal Author(s) : Parkinson, W H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a267045.pdf


Report Date : 14 Nov 1992


Pagination or Media Count : 3


Abstract : The goal of this research program is development of a method for obtaining daily, radiometrically accurate, solar spectral irradiance data at extreme-ultraviolet (EUV) wavelengths. In-orbit radiometric instrumentation recalibration is a fundamental requirement for such measurements. We proposed to investigate, design, and test smaller and less massive, low power, in-space version of a 'standard' EUV radiance source, which has been developed for laboratory use and to assess the merits of innovative combinations of rare-gas ionization cells and thin film filters to make absolute measurements of EUV radiation over a number of wavelength bands. Solar, Extreme ultraviolet, Radiometric calibration


Descriptors :   *ULTRAVIOLET SPECTRA , *SOLAR ULTRAVIOLET RADIATION , TEST AND EVALUATION , MEASUREMENT , RADIATION , THIN FILMS , RADIANCE , STANDARDS , INSTRUMENTATION , IONIZATION , CALIBRATION , FILTERS , IRRADIATION , RADIOMETRY , GAS IONIZATION


Subject Categories : Astrophysics


Distribution Statement : APPROVED FOR PUBLIC RELEASE