Post 2016 Anneal Detector Operations

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*This information and campaign modes are largely based on a document generated by Gordon and Sa"m and discussion during the 2016 May 18 and 2016 May 25 RHESSI operations meetings.  
*This information and campaign modes are largely based on a document generated by Gordon and Sa"m and discussion during the 2016 May 18 and 2016 May 25 RHESSI operations meetings.  
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== Normal Operation ==
== Normal Operation ==
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*Possible footpoint locations from D3.
*Possible footpoint locations from D3.
*Possible “D6- equivalent” low sensitivity imaging data from D8.
*Possible “D6- equivalent” low sensitivity imaging data from D8.
-
 
=== Status ===
=== Status ===
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*Spectroscopy contribution from D1
*Spectroscopy contribution from D1
*Good locations from D9
*Good locations from D9
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== Large Flare Observations ==
== Large Flare Observations ==
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*D1 is primarily useful for spectroscopy since in most cases, sources are sufficiently large that D1 maps are not so useful.  This will be especially the case if there is a lack of coarser resolution mapping data.
*D1 is primarily useful for spectroscopy since in most cases, sources are sufficiently large that D1 maps are not so useful.  This will be especially the case if there is a lack of coarser resolution mapping data.
*Very little software development needed to support harmonic imaging
*Very little software development needed to support harmonic imaging
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== To do ==
== To do ==
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*Confirmation / evaluation of imaging effectiveness of 2nd & 3rd harmonic.
*Confirmation / evaluation of imaging effectiveness of 2nd & 3rd harmonic.
*Working guidelines (parameterized model) for estimating temperature rise (rate and equilibrium) for each extra powered detector.
*Working guidelines (parameterized model) for estimating temperature rise (rate and equilibrium) for each extra powered detector.

Revision as of 20:38, 25 May 2016

After the 2016 anneal, thermal considerations have led to the necessity of operating a subset of detectors at a time. This page describes the different modes for normal operations, times of high solar activity and campaigns. The document ends with a discussion of the different inputs and considerations in determining these modes.


Contents

Normal Operation

For thermal considerations, two detectors will be turned on and operated for normal data collection. At this time, D3 and D8, are the best candidates for general microflare studies.

Status


Extremely Low Solar Activity

The thermal input from detectors and their electronics contribute significant heat input into the cryostat. It was suggested that under extremely quiet sun conditions we turn off all detectors for a short time so that we can drive down the cryocooler temperature. This option requires much further discussion and has not been agreed upon.


High Solar Activity

When the Sun is active and the forecast calls for heightened activity a third detector will be turned on for monitoring. At this time D1 and D9 are the best candidates for general monitoring.


Large Flare Observations

When the flare forecast calls for a Great Flare watch, enable more than 3 detectors for a short duration


Inputs and Assumptions


To do

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