Which detectors can I use to analyze this flare?
From RHESSI Wiki
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| - | This is the most common question we get asked by many people trying to | + | This is the most common question we get asked by many people trying to analyze RHESSI imaging and/or spectroscopy data. The answer is not always easy and it is becoming more and more difficult as the individual detectors respond differently to radiation damage and to the four anneals that have now been completed. However, we now have new front-segment spectral plots available in Browser for all identified flares that can help answer this question. These plots can be obtained for any given flare by selecting "Detector spectra" under "Flare Quicklook" in Browser. |
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| + | An example of these plots is shown in Figure 1. The nine total count-flux spectra in units of counts s^-1 cm^-2 keV^-1, one for each front segment, are each fully corrected for decimation and live time and use 0.3 keV energy bins from 1 to 100 keV. The photon flux spectra are computed from the corresponding count flux spectra using only the diagonal component of the detector response matrix applicable for that particular time. Note that since no background spectra are subtracted, the photon spectra determined in this way serve only to show the relative responses of the different detectors and how well the detector response matrices correct for the know sensitivities of the different detectors.can only be used to show the relative response of the | ||
[[Image:Hsi_sepdet_spectrum_20140502_005436to005536.png|200px|thumb|right|'''Figure 1''': Total count and photon flux spectra for individual detector front segments during a flare on 02 may 2014 at 00:54:36 UT.]] | [[Image:Hsi_sepdet_spectrum_20140502_005436to005536.png|200px|thumb|right|'''Figure 1''': Total count and photon flux spectra for individual detector front segments during a flare on 02 may 2014 at 00:54:36 UT.]] | ||
Revision as of 22:51, 3 September 2014
This is the most common question we get asked by many people trying to analyze RHESSI imaging and/or spectroscopy data. The answer is not always easy and it is becoming more and more difficult as the individual detectors respond differently to radiation damage and to the four anneals that have now been completed. However, we now have new front-segment spectral plots available in Browser for all identified flares that can help answer this question. These plots can be obtained for any given flare by selecting "Detector spectra" under "Flare Quicklook" in Browser.
An example of these plots is shown in Figure 1. The nine total count-flux spectra in units of counts s^-1 cm^-2 keV^-1, one for each front segment, are each fully corrected for decimation and live time and use 0.3 keV energy bins from 1 to 100 keV. The photon flux spectra are computed from the corresponding count flux spectra using only the diagonal component of the detector response matrix applicable for that particular time. Note that since no background spectra are subtracted, the photon spectra determined in this way serve only to show the relative responses of the different detectors and how well the detector response matrices correct for the know sensitivities of the different detectors.can only be used to show the relative response of the
