Influence of instrumental noise and defocus on the DIMM

Details Influence of instrumental noise and defocus on the DIMM Influence of instrumental noise and defocus on the DIMM

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7014e.240b&link_type=abstract

Ground-based and Airborne Instrumentation for Astronomy II. Edited by McLean, Ian S.; Casali, Mark M. Proceedings of the SPI

Astronomy and Astrophysics

Astronomy

Scientific paper

The instrumental noise is an important factor in any measurement. In order to evaluate the amount of seeing introduced by the instrumental noise, we have conducted an experiment using an artificial light source as a star. In addition, we present a study of the defocus effect on the DIMM results. The instrumental noise variance was measured in the laboratory for different states of defocusing. In this paper we will present the results of these various experiments.

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