Differences

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

--- technical:mtr2 [2024/12/20 14:33] – bgelly
+++ technical:mtr2 [2025/01/17 15:39] (current) – etienne
@@ Line 1: / Line 1: @@
-===== MTR2 =====
+===== THEMIS MulTi-Ray spectrograph (MTR2) =====
-{{ :technical:spectro_synoptic.png?600|}}
+MTR2 is the advanced version of the original MulTi-Ray spectrograph of THEMIS. MTR2 enables the production of high-spectral resolution spectrograms simultaneously in different wavelengths. This enables the study of different physical properties of the distinct layers of the solar atmosphere.
-== Schematics of the MTR2 ==
-The MTR2 is made of a predispersor ("SP1" first one on the left part), forming a lowres spectrum on the wavelength selector (so called the "mask plate"). From there, only the selected bandwiths travel to the highres echelle spectrograph (right part), ending  over the MTR cameras at the SP2 output (one bandwith per camera).\\
+<columns 100% 60%>
+==== Schematics of MTR2 ====
+MTR2 is made of a predispersor ("SP1" first one on the left part), forming a low resolution spectrum on the wavelength selector (so called the "mask plate"). From there, only the selected bandwiths travel to the high-resolution echelle spectrograph (right part), ending  over the MTR cameras at the SP2 output (one bandwith per camera).\\
 The optical layout along Y is fixed (no changes, never). The ruling of the gratings are **along Y** only and the dispersion of both spectra is **along Z** only. The entrance slit is fixed (but for its width), and such are the collimators and camera mirrors.
@@ Line 17: / Line 21: @@
 In short:
     - The main optical layout (F2 to SP2) is static and does not require changes for daily operation.
-    - Spectral confguration of the multiline is obtained using:
+    - Spectral configuration of the multi-line is obtained using:
        * both gratings rotation
        * masks plate tuning in translation
        * manual setup of the spectral cameras at the SP2 output
-{{ :technical:wp_20191108_16_20_40_pro_-_copy.jpg?400|}}
 Data and formulae for the MTR2 can be found in the following document: \\
  [[this>wdata/WSpectroTools/Spectro_Formulae.pdf | THEMIS spectrograph (auth: CLM)]]
-== Spectrograph simulation tools  ==
+==== Spectrograph simulation tools  ====
 These tools allow the observer to quick check the feasibility of a setup
   * [[this>wdata/Instrument/tools/Rep1/MtrSim.html | MTR spectrograph simulator]] (java web version / auth: CLM)
-  * [[this>wdata/WSpectroTools/MTR_Calculator.xls | MTR spectrograph simulator]] (Downloadable excel version / auth: CLM / Please enable macros to get a correct result)
+  * [[this>wdata/WSpectroTools/MTR_Calculator.xls | MTR spectrograph simulator]] (Downloadable excel version / auth: CLM)\\ Please enable macros to get a correct result.
-== Solar spectra resources ==
-  * [[this>wdata/WSpectralRes/solar_spect.pdf | Solar spectrum ]] (3800 to 8700 A with identified lines)
+Observers can also check the  [[technical:mtr2:maskplates| list of existing available mask plates]] to have an idea of readily available combination.
-  * [[this>wdata/WSpectralRes/nbsmonograph61.pdf | Solar lines]] (2935 to 8770 A, **Moore & Minaert (M&M)**, NIST)
+==== Solar spectra resources ====
+  * [[this>wdata/WSpectralRes/solar_spect.pdf | Solar spectrum ]] (3800 to 8700 Å with identified lines)
+  * [[this>wdata/WSpectralRes/nbsmonograph61.pdf | Solar lines]] (2935 to 8770 Å, **Moore & Minaert (M&M)**, NIST)
   * [[http://bass2000.obspm.fr/solar_spect.php|Solar spectrum]] (**BASS2000** interactive plot)
   * [[http://www.astrosurf.com/spectrohelio/atlas-en.php|Solar spectrum]] (**Astrosurf**:  interactive 2d with M&M identification)
+<newcolumn *40%*>
+<html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=:results:gallery:schema:spectro_synoptic.png"><img src="https://www.themis.iac.es/lib/exe/fetch.php?media=:results:gallery:schema:spectro_synoptic.png" style="width:90%; height: auto;"></a></html>
+<html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=:results:gallery:instrumentation:wp_20191108_16_20_40_pro_-_copy.jpg"><img src="https://www.themis.iac.es/lib/exe/fetch.php?media=:results:gallery:instrumentation:wp_20191108_16_20_40_pro_-_copy.jpg" style="width:90%; height: auto;"></a></html>
+<html> <a href="https://www.themis.iac.es/lib/exe/fetch.php?media=:results:gallery:instrumentation:spectro_with_light.png"><img src="https://www.themis.iac.es/lib/exe/fetch.php?media=:results:gallery:instrumentation:spectro_with_light.png" style="width:90%; height: auto;"></a></html>
+</columns>