Abstract
The Cryogenic Solar Absolute Radiometer (CSAR) is a new primary radiometric standard for use in space traceable to the International. System of Units (SI). CSAR will have the potential to measure the total irradiance of the Sun with an uncertainty of 0.01% and a resolution of 0.001%, more than a factor ten improvement over existing instruments. Since CSAR will be cooled by a mechanical cooler based upon the Stirling cycle its working lifetime is projected to be in excess of 10 years.
Similar content being viewed by others
References
Andersen B.: 1993,Solar Phys., (to be published).
Anderson V.E., Fox N.P. and Nettleton D.H.: 1992,Appl. Opt. 31, 536.
Boivin L.P. and Smith T.C.: 1978,Appl. Opt. 17, 3067.
Cohen E.R. and Taylor B.N.: 1986,Codata Bulletin 63, 11.
ESA Contract 9004/90/NL/PP, 1992. Doc. No. TP/MCC/A0163/BAe
Fox N.P. and Martin J.E.: 1990,Appl. Opt. 29, 4686.
Fröhlich C.: 1991,Metrologia 28, 111.
Fröhlich C., Foukal P.V., Hickey J.R., Hudson H.S. and Willson R.C.: 1991,Sun in Time, Univ of Arizona Press, Tucson.
Gillham, E.J.: 1962,Proc. R. Soc. London, Ser. A 269, 249.
Goodman T.M., Martin J.E., Shipp B.D. and Turner N.P.: 1988,Inst. Phys. Conf. 92, 121.
Jones B.G. and Scull S.R.: 1992,Cryogenics 32, 850.
Kodama S., Horiuchi M., Kuni T. and Kuroda K.: 1990,IEEE Trans 39, 230
Lee III R.B., Gibson M.A., Shivakumar N., Wilson R., Kyle H.L. and Mecherikunnel A.T.: 1991,Metrologia 28, 265.
Martin J.E., Fox N.P. and Key P.J.: 1985,Metrologia 21, 147.
Quinn T.J. and Martin J.E.: 1985,Philos. Trans. R. Soc. London, Ser. A 316, 85.
Quinn T.J.: 1990,Temperature, Academic Press, London.
Romero, J., Wehrli C., Fröhlich C., Crommelynck D., Fichot A. and Penelle B.: 1993,Solar Phys., (to be published).
Willson, R.C.: 1979,Appl. Opt. 18, 179.
Willson, R.C.: 1993,Proc. IAU Collquium No. 143, (to be published).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Martin, J.E., Fox, N.P. Cryogenic Solar Absolute Radiometer - CSAR. Sol Phys 152, 1–8 (1994). https://doi.org/10.1007/BF01473175
Issue Date:
DOI: https://doi.org/10.1007/BF01473175