Relative and (maybe) Absolute RHESSI Detector Efficiency: 2002-2008
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[[Image:Hessi_dets_test_ct24.png|400px|thumb|left|'''Figure 7''':The ratio of RHESSI 6 to 20 keV counts to GOES fluxes for flares with EM greater than 1.0e45 cm^(-3) for two different time periods, one early in the mission, one just before anneal,]] | [[Image:Hessi_dets_test_ct24.png|400px|thumb|left|'''Figure 7''':The ratio of RHESSI 6 to 20 keV counts to GOES fluxes for flares with EM greater than 1.0e45 cm^(-3) for two different time periods, one early in the mission, one just before anneal,]] | ||
+ | What does the sample change do to the original plot? | ||
+ | |||
+ | [[Image:Hessi_dets_test.png|400px|thumb|left|'''Figure 8''':This is the relative detector efficiency for front detectors 3, 4, 5, 6, 8, and 9, but using count rates and only the small sample of 2580 flares ]] | ||
[[Category:Nugget]] | [[Category:Nugget]] |
Revision as of 00:42, 22 December 2009
Nugget | |
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Number: | 117 |
1st Author: | Jim McTiernan |
2nd Author: | |
Published: | 21 December 2009 |
Next Nugget: | TBD |
Previous Nugget: | A tiny white-light flare |
List all |
Introduction
RHESSI has now been observing for nearly eight years. How has detector sensitivity changed since it was launched?
What about absolute sensitivity?
Looks like a blob for small flares, do the same plot for 6 to 20 keV RHESSI detector 1 count rate.
Restrict to the flares with greater than 1.0e45 emission measure. This leaves 2580 flares.
Plot 60 day averages as a function of time.
Show samples of flare ratio results for two different time ranges.
What does the sample change do to the original plot?
Facts about Relative and (maybe) Absolute RHESSI Detector Efficiency: 2002-2008RDF feed
RHESSI Nugget Date | 21 December 2009 + |
RHESSI Nugget First Author | Jim McTiernan + |
RHESSI Nugget Index | 117 + |