Fixes for NXem

# Conflicts:
#	contributed_definitions/NXebeam_column.nxdl.xml
#	contributed_definitions/nyaml/NXapm_compositionspace_results.yaml
#	contributed_definitions/nyaml/NXebeam_column.yaml
#	contributed_definitions/nyaml/NXlens_em.yaml
#	contributed_definitions/nyaml/NXoptical_system_em.yaml

base_classes/NXlens_em.nxdl.xml

@@ -87,18 +87,18 @@ with other research fields (MPES, XPS, OPT) could be useful-->
     </field>
     <field name="value" type="NX_NUMBER" units="NX_ANY">
         <doc>
-             This field should be used when the exact voltage or current of the lens
-             is not directly controllable as the control software of the microscope
-             does not enable or was not configured to display these values.
+             This field should be used when the exact voltage or current of the lens is not
+             directly controllable as the control software of the microscope  does not enable
+             or was not configured to display these values (for end users).
 
              In this case this value field should be used and the value
              from the control software stored as is.
 
              Although this value does not document the exact physical voltage or
              excitation, it can still give useful context to reproduce the lens setting,
-             which, provided a properly working instrument and software sets the lens
-             into a similar state to the technical level possible when no more information
-             is available physically or accessible legally.
+             provided a properly working instrument and software sets the lens
+             into a similar state to the technical level possible when no more 
+             information is available physically or accessible legally.
         </doc>
     </field>
     <field name="mode" type="NX_CHAR">

contributed_definitions/NXapm_compositionspace_config.nxdl.xml

@@ -0,0 +1,73 @@
+<?xml version='1.0' encoding='UTF-8'?>
+<?xml-stylesheet type="text/xsl" href="nxdlformat.xsl"?>
+<!--
+# NeXus - Neutron and X-ray Common Data Format
+#
+# Copyright (C) 2014-2024 NeXus International Advisory Committee (NIAC)
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 3 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# For further information, see http://www.nexusformat.org
+-->
+<definition xmlns="http://definition.nexusformat.org/nxdl/3.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" category="application" type="group" name="NXapm_compositionspace_config" extends="NXobject" xsi:schemaLocation="http://definition.nexusformat.org/nxdl/3.1 ../nxdl.xsd">
+    <symbols>
+        <doc>
+             The symbols used in the schema to specify e.g. dimensions of arrays.
+        </doc>
+        <symbol name="n_voxel">
+            <doc>
+                 Number of voxel of discretized domain for analyzed part of the dataset.
+            </doc>
+        </symbol>
+        <symbol name="d">
+            <doc>
+                 The dimensionality of the grid.
+            </doc>
+        </symbol>
+        <symbol name="c">
+            <doc>
+                 The cardinality or total number of cells/grid points.
+            </doc>
+        </symbol>
+        <symbol name="n_clst_dict">
+            <doc>
+                 Number of terms in the composition clustering dictionary
+            </doc>
+        </symbol>
+        <symbol name="n_spat_dict">
+            <doc>
+                 Number of terms in the position clustering dictionary
+            </doc>
+        </symbol>
+    </symbols>
+    <doc>
+         Config for a run with Alaukik Saxena's composition space tool.
+
+         This is an initial draft application definition for the common NFDI-MatWerk,
+         FAIRmat infrastructure use case IUC09 how to improve the organization and
+         results storage of the composition space tool and make these data at the
+         same time directly understandable for research data management systems
+         like NOMAD Oasis.
+    </doc>
+    <!--by default for appdefs the value of the exists keyword is required unless it is explicitly specified differently-->
+    <group type="NXentry" minOccurs="1" maxOccurs="1">
+        <field name="definition" type="NX_CHAR">
+            <attribute name="version" type="NX_CHAR"/>
+            <enumeration>
+                <item value="NXapm_compositionspace_config"/>
+            </enumeration>
+        </field>
+    </group>
+</definition>