scipp / scipp/ess

Handling multiple He3 cells?

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esspolarization
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Python
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Description

@astellhorn mentioned that He3 cells may be switched out during an experiment. However, in the basics workflow defined in scipp/esspolarization#3 we have assumed that we have a single set of parameters such as He3Pressure and He3FillingTime.

If my understanding is correct then we need to generalize this, adding e.g., a cell identifier to compute, e.g., a cell-dependent He3Opacity. This would however imply that we need to perform independent fits, i.e., we also get a cell-dependent He3Transmission. For the full run we would then have to concatenate multiple such time-dependent decay functions (or handle the entire data reduction independently when switching to a new cell).

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Research direction

Start with the basics workflow defined in scipp/esspolarization#3 and trace how He3Pressure, He3FillingTime, He3Opacity, and He3Transmission are represented. Clarify the expected behavior when cells are switched during an experiment, including independent fits and combining time-dependent decay functions. Done should be a documented, agreed design for cell-dependent reduction across a full run.

Written by the indexing model from the issue text.

Assessment

Tech stack
python
Domain
data
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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