Merge pull request #1417 from FAIRmat-NFDI/fairmat-2024-nxmonochromator

Fairmat 2024: additional fields in NXmonochromator

base_classes/NXmonochromator.nxdl.xml

@@ -60,6 +60,26 @@
     <field name="energy_errors" type="NX_FLOAT" units="NX_ENERGY">
         <doc>energy standard deviation</doc>
     </field>
+    <field name="energy_dispersion" type="NX_FLOAT" units="eV/mm">
+        <doc>
+             Energy dispersion at the exit slit.
+        </doc>
+    </field>
+    <field name="wavelength_dispersion" type="NX_FLOAT" units="nm/mm">
+        <doc>
+             Wavelength dispersion at the exit slit.
+        </doc>
+    </field>
+    <group name="entrance_slit" type="NXaperture">
+        <doc>
+             Size, position and shape of the entrance slit of the monochromator.
+        </doc>
+    </group>
+    <group name="exit_slit" type="NXaperture">
+        <doc>
+             Size, position and shape of the exit slit of the monochromator.
+        </doc>
+    </group>
     <group type="NXdata" name="distribution"/> 
     <group type="NXgeometry" name="geometry" deprecated="Use the field `depends_on` and :ref:`NXtransformations` to position the monochromator and NXoff_geometry to describe its shape instead"/>
     <group type="NXoff_geometry" minOccurs="0">
@@ -105,4 +125,3 @@
         </doc>
     </group>
 </definition>
-