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9th RHESSI Workshop |
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Genova, Italy, September 1-5 2009 |
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Participants |
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Alexei Struminsky Space Research Institute, Moscow, Russia Email: astrum (at) iki.rssi.ru Group 2 Contribution: A count rate of the Anti-Coincidence System of Spectrometer on INTEGRAL (ACS SPI), which registers photons of E ~> 150 keV, may differ up to 4 orders during large solar flares. The plasma temperature of some solar flares appeares to be proportional to logarithm of the HXR intensity (ACS SPI) during pre-flare and impulsive phases, i.e. the electron acceleration and plasma heating is a system with positive feed back. This proportionality is not visible in the RHESSI data due to low sensitivity of the detector. Group 3 Contribution: A count rate of the Anti-Coincidence System of Spectrometer on INTEGRAL (ACS SPI), which registers photons of Eã>150 keV, may differ up to 4 orders during large solar flares. A direct comparison of the ACS SPI and RHESSI data shows that a sensitivity of the RHESSI detector is not enough for studies of the pre-flare and decay phases at E ~> 50 keV.
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