Ticket #7345 (closed: fixed)
An exception is thrown while running detector calibration on PG3 run 13428
| Reported by: | Wenduo Zhou | Owned by: | Wenduo Zhou |
|---|---|---|---|
| Priority: | critical | Milestone: | Release 2.6 |
| Component: | Framework | Keywords: | |
| Cc: | petersonpf@… | Blocked By: | |
| Blocking: | Tester: | Peter Peterson |
Description (last modified by Wenduo Zhou) (diff)
As running CalibrateRectangularDetectors on POWGEN run 13428, an exception was thrown. Here is the error message: GetDetOffsetsMultiPeaks: No idea how to deal with this! Spectrum 285: Find peak between 0.5(i = 0) and 0.583461(i = 386). Error reason: Estimate peak parameters error (FWHM cannot be zero): Input data size = 387, Xmin = 0.5(0), Xmax = 0.583461(386); Estimated peak centre @ 0.5004(2) with height = 21.3333; Lowest Y value = 0; Output error: . leftfwhm = -1, right fwhm = 0.00010008.
Attachments
Change History
comment:2 Changed 7 years ago by Wenduo Zhou
Fixed the bug. Refs #7345.
Changeset: cb1656b750fa72195d2c8bad6ca852d8d263d9b6
comment:3 Changed 7 years ago by Wenduo Zhou
Verification Instruction
- Locate data PG3_13428_event.nxs
- Download the attached ticket7345.py
- Run the script to see whether there is any exception thrown
comment:5 Changed 7 years ago by Wenduo Zhou
- Status changed from accepted to verify
- Resolution set to fixed
- Description modified (diff)
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It is found that the error is caused by an ill-defined FitWindow (see the attached error.png). There are in fact more than 1 peak inside the window.
It is decided to make FitPeaks to deal with it as a non-fit situation.