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  1. DRP 2-D Pipeline
  2. PIPE2D-1415

Please add missing lines for the HgCd lamps

    Details

    • Type: Story
    • Status: Done (View Workflow)
    • Priority: Normal
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: obs_pfs
    • Labels:

      Description

      Looking at HgCd arcs we are missing quite a few lines in the HgCd.txt file (see ); please add them (e.g. from NIST)

      I checked, and I don't think that the lines are from the Ar carrier, but I could be wrong. There are some weak lines which extend the blue coverage, but it isn't clear how useful they are.

        Attachments

        1. 106863_zoom.png
          106863_zoom.png
          164 kB
        2. 106863.png
          106863.png
          109 kB
        3. tmp - 2024-04-03T143631.956.png
          tmp - 2024-04-03T143631.956.png
          165 kB
        4. v106863-line-lists-spatial.png
          v106863-line-lists-spatial.png
          46 kB
        5. v106863-line-lists-wavelength.png
          v106863-line-lists-wavelength.png
          45 kB

          Activity

          Hide
          price price added a comment -

          The values from Hg.txt should be vacuum wavelengths.

          Show
          price price added a comment - The values from Hg.txt should be vacuum wavelengths.
          Hide
          wtgee Wilfred Gee added a comment -

          Output from running reduceExposure.py with new line lists vs old, with 38080 line centroids vs 5950.  All other processing parameters were the same.

          We have dropped the one HgII line from the new list at 734.85320 228.57 HgII 0.  I'm assuming this was intentional? Christian Kragh Jespersen

          < root INFO: Running: /work/stack_INFRA-312/stack/miniconda3-py38_4.9.2-3.0.0/Linux64/drp_stella/w.2024.17a/bin/reduceExposure.py /work/drp --calib /work/drp/CALIB --rerun wtg/PIPE2D-1415-03 --id visit=106863 arm=b^r^n^m
          
          > root INFO: Running: /work/stack_INFRA-312/stack/miniconda3-py38_4.9.2-3.0.0/Linux64/drp_stella/w.2024.17a/bin/reduceExposure.py /work/drp --calib /work/drp/CALIB --rerun wtg/PIPE2D-1415-01 --id visit=106863 arm=b^r^n^m
          
          < reduceExposure.readLineList INFO: Filtered line lists ['CdI', 'HgI'] by {'Hg', 'Cd', 'Ar'}, keeping species {'CdI', 'HgI'}.
          < reduceExposure.centroidLines INFO: Measured 38080 line centroids
          
          > reduceExposure.readLineList INFO: Filtered line lists ['CdI', 'HgI', 'HgII'] by {'Ar', 'Cd', 'Hg'}, keeping species {'HgI', 'CdI', 'HgII'}.
          > reduceExposure.centroidLines INFO: Measured 5950 line centroids
          
          Show
          wtgee Wilfred Gee added a comment - Output from running reduceExposure.py with new line lists vs old, with 38080 line centroids vs 5950.  All other processing parameters were the same. We have dropped the one HgII line from the new list at 734.85320 228.57 HgII 0 .  I'm assuming this was intentional? Christian Kragh Jespersen < root INFO: Running: /work/stack_INFRA-312/stack/miniconda3-py38_4.9.2-3.0.0/Linux64/drp_stella/w.2024.17a/bin/reduceExposure.py /work/drp --calib /work/drp/CALIB --rerun wtg/PIPE2D-1415-03 --id visit=106863 arm=b^r^n^m > root INFO: Running: /work/stack_INFRA-312/stack/miniconda3-py38_4.9.2-3.0.0/Linux64/drp_stella/w.2024.17a/bin/reduceExposure.py /work/drp --calib /work/drp/CALIB --rerun wtg/PIPE2D-1415-01 --id visit=106863 arm=b^r^n^m < reduceExposure.readLineList INFO: Filtered line lists [ 'CdI' , 'HgI' ] by { 'Hg' , 'Cd' , 'Ar' }, keeping species { 'CdI' , 'HgI' }. < reduceExposure.centroidLines INFO: Measured 38080 line centroids > reduceExposure.readLineList INFO: Filtered line lists [ 'CdI' , 'HgI' , 'HgII' ] by { 'Ar' , 'Cd' , 'Hg' }, keeping species { 'HgI' , 'CdI' , 'HgII' }. > reduceExposure.centroidLines INFO: Measured 5950 line centroids
          Hide
          cj1223 Christian Kragh Jespersen added a comment -

          Should be, if I remember correctly there's another line close by, it's a blend with intermediate distance, so we can't really merge them nor separate them since we didn't have any info on the intensity of the other line.

          Show
          cj1223 Christian Kragh Jespersen added a comment - Should be, if I remember correctly there's another line close by, it's a blend with intermediate distance, so we can't really merge them nor separate them since we didn't have any info on the intensity of the other line.
          Hide
          wtgee Wilfred Gee added a comment -

          Checking on a single, visit (v106863, same as above), we see more lines detected but get some larger median and soften values, mostly for the wavelength in the the n and r arms. For n we simply weren't detecting any lines to have valid wavelengths (which is the issue that started us looking into this in the first place).  

          Rebuilding the detectorMaps with these line lists should improve this so after merging this file I think the detectorMaps should be updated.

           

          Show
          wtgee Wilfred Gee added a comment - Checking on a single, visit (v106863, same as above), we see more lines detected but get some larger median and soften values, mostly for the wavelength in the the n and r arms. For n we simply weren't detecting any lines to have valid wavelengths (which is the issue that started us looking into this in the first place).   Rebuilding the detectorMaps with these line lists should improve this so after merging this file I think the detectorMaps should be updated.  
          Hide
          wtgee Wilfred Gee added a comment -

          Merged after discussion with Kiyoto Yabe

          Show
          wtgee Wilfred Gee added a comment - Merged after discussion with Kiyoto Yabe

            People

            • Assignee:
              wtgee Wilfred Gee
              Reporter:
              rhl rhl
              Reviewers:
              price
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              Dates

              • Created:
                Updated:
                Resolved: