Differences

This shows you the differences between two versions of the page.

--- dsp [2023/10/17 12:48] – andrew
+++ dsp [2024/01/16 15:17] (current) – Added the notes section for additional information reno
@@ Line 60: / Line 60: @@
   - Press //y// or //n// and then press enter (n is pressed only if the lamp has been on for a minimum of 10 minutes). \\ {{:pictures:screenshot_from_2023-10-16_15-32-59.png?400|}} \\
   - Press '//2//' to select UV Dome and then enter. \\ {{:pictures:screenshot_from_2023-10-16_15-33-45.png?400|}} \\
-  - If the program determined wavelengths correspond with the table below, press '//A//', if not press '//R//' to correct. \\ {{:pictures:screenshot_from_2023-10-16_15-34-03.png?400|}} \\
+  - If the program determined wavelengths correspond with the table below, press '//A//', if not press '//R//' to correct. \\ {{:pictures:screenshot_from_2023-10-16_15-34-03.png?400|}} \\ //Note:  The wavelengths used to conduct dispersion calibrations for single brewers (S) and double brewers (D) are tabled below. The DSP calibration script automatically determines the wavelengths that will be used based on the brewer model being tested.//
-^Lamp Type^Line (LN)^Starting Slit^Ending SLit^Wavelenth AU^Brewer Model^
-|Hg|1|0|1|2893.600|S, D|
-|Hg|2|0|3|2967.280|S, D|
-|Hg|3|0|5|3341.480|D|
-|Cd|4|0|5|3080.820|S, D|
-|Cd|5|0|5|3133.167|S, D|
-|Cd|6|0|5|3261.055|S, D|
-|Cd|7|0|5|3403.652|D|
-|Cd|8|1|5|3499.950|D|
-|Cd|9|5|5|3611.630|D|
-//Note:  The wavelengths used to conduct dispersion calibrations for single brewers (S) and double brewers (D) are tabled below. The DSP calibration script automatically determines the wavelengths that will be used based on the brewer model being tested.//
   - Press //enter// when ready.
-  - An example of the brewer screen while waiting for a dsp test to start.
   - Typical screen display during a dsp test.  Note: The highest counts should be near the middle of the scan, center portion of the center column.
   - Once the dsp test has completed the brewer will return to menu mode.  Type '//pd//' and then press enter to write the dsp results to the D file.
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+====== Notes ======
+Typically on instruments with a small slit 0 (and occasionally with instrument with a narrow offset slit 0) you may find the Fit to be closer to around 100pM. This is normal however it is suggested to use a quadratic dispersion as it usually is more accurate than a cubic dispersion.\\
+{{:pictures:dsp_fit_results.png?400|}}\\
+You can also see a difference in the slit 0 wavelength. This is not considered as a problem and just how the instrument was built. The dispersion will characterize the instrument properly\\
+{{::dsp_abs_results.png?400|}}\\