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X-ray Imaging Spectrometer
Image of RHESSI-X-ray Imaging Spectrometer

The RHESSI instrument is an imaging spectrometer observing the Sun at X-ray to gamma-rays (photon energies of 3 keV to 17 MeV) at time resolutions of a few seconds. (eV stands for "electron volt" and is a unit of energy. Note that photons of visible light have energies of 2-3 eV. 1 keV is a thousand electron volts and 1 MeV is a million electron volts.

For more information about the RHESSI instrument, visit its home pages at Goddard Space Flight Center and University of California at Berkeley.

Movie   ID   Title
Closeup of AR 10720. Blue high-energy emission marks the footpoints of the coronal loops. The lower-energy red emission is from the loop structure. See note below under ImageMods.   3162   RHESSI and TRACE View of January 20, 2005 Solar Flare
The 2.2MeV gamma-ray emission is prominent.   2750   RHESSI Observes 2.2 MeV Line Emission from a Solar Flare
TRACE and two RHESSI channels   2553   A Multi-Mission View of the AR9906 Solar Flare with Alternate Instrument Labels
The expanding bubble of hot plasma expands into SOHO-LASCO C3 field of view just before bursting   2511   A Multi-Mission View of the AR9906 Solar Flare without Instrument Labels
The expanding bubble of hot plasma expands into SOHO-LASCO C3 field of view just before bursting   2509   A Multi-Mission View of the AR9906 Solar Flare with Instrument Labels
Initial appearance of emission in 12-25 keV.   2463   RHESSI Observes the Flare over AR9906 - rotate view without times
Last gasps of x-ray emission from this flare.   2462   RHESSI Observes the Flare over AR9906 - rotate view with times
RHESSI emission expands to an arc, apparently around the limb of the Sun.   2461   RHESSI Observes the Flare over AR9906 - zoom without times
Upflow viewed in TRACE appears at the center of the RHESSI emission.   2460   RHESSI Observes the Flare over AR9906 - zoom with times
Initial appearance of emission in 12-25 keV.   2459   RHESSI Observes the Flare over AR9906 - No time tags
TRACE emission brightens in RHESSI 12-25keV contours and new RHESSI emission at 50-100keV appears on the solar surface.   2458   RHESSI Observes the Flare over AR9906 - Time Tagged
X-rays from the second portion of this flare event.   2404   First Flare movie for the RHESSI instrument (speed 26x normal)
First flare location fades as second flash is on the rise.   2403   First Flare movie for the RHESSI instrument (speed 52x normal)
Full Sun at 195 Angstroms from SOHO-EIT.   2402   First Flare movie for the RHESSI instrument (speed 105x normal)


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