Update Spectral data

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arrell_c 2024-03-14 10:52:45 +01:00
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## Channel list
## Channel & device list
All PSSS data channels are listed in the following sheet:
A standard channel naming is applied to the following devices:
[Sheet of PSSS data channels](https://docs.google.com/spreadsheets/d/16Hz7MZR3E7-OmLHfakkT2K6yPMFUzp4eIFZxrzXWjFk/edit?usp=sharing)
- SARFE10-PSSS059
- SARFE10-PSSS059-LB
- SAROP21-PMOS127-1D
- SAROP21-PMOS127-2D
- SAROP31-PMOS132-1D
- SAROP31-PMOS132-2D
- SATOP11-PSAS079
All spectrometer data channels are listed in the following sheet:
[Sheet of spectrometer data channels](https://docs.google.com/spreadsheets/d/16Hz7MZR3E7-OmLHfakkT2K6yPMFUzp4eIFZxrzXWjFk/edit?usp=sharing)
## Nomenclature
| Style | Meaning |
|-------|---------|
| SARFE10-PSSS059:**SPECTRUM**\* | Raw spectral data |
| SARFE10-PSSS059:**FIT**\* | Results of Gaussian fit |
| SARFE10-PSSS059:**SPECT**\* | Statistics from the raw (without fit) spectrum |
| SARFE10-PSSS059:**AVG**\* | Data calculated from average (not single shot) spectra |
| \<device name\>:**SPECTRUM**\* | Raw spectral data |
| \<device name\>:**FIT**\* | Results of Gaussian fit |
| \<device name\>:**SPECT**\* | Statistics from the raw (without fit) spectrum |
| \<device name\>:**AVG**\* | Data calculated from average (not single shot) spectra |
## Concepts
@ -46,16 +57,16 @@ where the factor or 2.355 is included to allow these values to be comparable.
**Spectral brightness**
To quantify an increase in the spectral intensity in a narrowing bandwidth the so called Spectral brightness is calculated:
To quantify an increase in the spectral intensity in a narrowing bandwidth, the so called Spectral brightness is calculated:
$`\text{Spectral brightness} = \frac{\text{Single shot intensity [uJ]}}{\text{Single shot spectral FWHM [eV]}}`$
At Aramis the current channel used for the single shot pulse intensity is:
At Aramis, the current channel used for the single shot pulse intensity is:
`SARFE10-PBPG050:FAST-PULSE-ENERGY`
and the spectral FWHM uses the single shot spectral width. The result channel name is:
`<SPECTROMETER:DEVICE>:FIT-BRT`
indicating the data uses a Gaussian fit. Beware this data is only meaningful if the spectral intensity distribution is near Gaussian.
and the spectral FWHM uses the single-shot spectral width. The result channel name is:
`<device name>:FIT-BRT`
indicating the data uses a Gaussian fit. Be aware that this data is only meaningful if the spectral intensity distribution is near Gaussian.
## Data flow schematic
@ -70,7 +81,7 @@ The PSSS has a dedicated server - sf-daqsync-11.psi.ch
- SARFE10-PSSS059_store
- 4 clients
This pipeline sends the camera image directly to the image buffer
This pipeline sends the camera image directly to the image buffer.
**Channels**
@ -81,7 +92,7 @@ This pipeline sends the camera image directly to the image buffer
- SARFE10-PSSS059_psss
- 13 clients
This pipeline extracts the spectra, fits and produces the statistics
This pipeline extracts the spectra, fits and produces the statistics.
**Channels**