Artifacts in RHESSI Light Curves

The RHESSI detector counting rates are made up of several components in addition to the contributions from solar X-ray emissions. Consequently, the interpretations of variations in the counting rates can sometimes be confusing. This list is intended to describe the various effects that can result in artifacts in the light curves of detector counting rates versus time. They include effects caused by cosmic rays and trapped charged particles passing through the detectors and surrounding material, instrumental effects, and variations that are only seen during solar events. These descriptions are intended to aid the user in differentiating between these various effects and in identifying those variations that can be used to provide information on the solar flare X-ray and gamma-ray emissions.

Artifacts from Charged Particles

Instrumental Artifacts

Artifacts in Solar Flare Light Curves

Non-solar Events

Last updated 15 December, 2010 by Kim Tolbert, 301-286-3965.  Content by Brian Dennis.