diff --git a/base_classes/NXbeam.nxdl.xml b/base_classes/NXbeam.nxdl.xml
index c7d132cc9e..8dd5a5b603 100644
--- a/base_classes/NXbeam.nxdl.xml
+++ b/base_classes/NXbeam.nxdl.xml
@@ -400,6 +400,57 @@
+
+
+ Type of electron amplifier, MCP, channeltron, etc.
+
+
+
+
+ Description of the detector type, DLD, Phosphor+CCD, CMOS.
+
+
+
+
+ Voltage applied to detector.
+
+
+
+
+ Voltage applied to the amplifier.
+
+
+
+
+ The low voltage of the amplifier migh not be the ground.
+
+
+
+
+ Size of each imaging sensor chip on the detector.
+
+
+
+
+ Number of imaging sensor chips on the detector.
+
+
+
+
+ Physical size of the pixels of the imaging chip on the detector.
+
+
+
+
+ Number of raw active elements in each dimension. Important for swept scans.
+
+
+
+
+ raw data output from the detector
+
+
+
The NeXus coordinate system defines the Z axis to be along the nominal beam
diff --git a/base_classes/NXentry.nxdl.xml b/base_classes/NXentry.nxdl.xml
index 2bb4ca533e..1247e68b76 100755
--- a/base_classes/NXentry.nxdl.xml
+++ b/base_classes/NXentry.nxdl.xml
@@ -219,6 +219,38 @@
+
+
+ City and country where the experiment took place
+
+
+
+
+ Start time of experimental run that includes the current
+ measurement, for example a beam time.
+
+
+
+
+ End time of experimental run that includes the current
+ measurement, for example a beam time.
+
+
+
+
+ Name of the institution hosting the facility
+
+
+
+
+ Name of the experimental facility
+
+
+
+
+ Name of the laboratory or beamline
+
+
diff --git a/base_classes/NXsample.nxdl.xml b/base_classes/NXsample.nxdl.xml
index 43bb316334..5eb528cab6 100755
--- a/base_classes/NXsample.nxdl.xml
+++ b/base_classes/NXsample.nxdl.xml
@@ -288,9 +288,7 @@
-
- In case it is all we know and we want to record/document it
-
+ In case it is all we know and we want to record/document it
@@ -328,6 +326,116 @@
sample thickness
+
+
+ Identification number or signatures of the sample used.
+
+
+
+
+ A descriptor to keep track of the treatment of the sample before entering the
+ photoemission experiment. Ideally, a full report of the previous operations, in
+ any format (NXnote allows to add pictures, audio, movies). Alternatively, a
+ reference to the location or a unique identifier or other metadata file. In the
+ case these are not available, free-text description
+
+
+
+
+ Physical state of the sample
+
+
+
+
+ Chemical purity of the sample
+
+
+
+
+ Surface termination of the sample (if crystalline)
+
+
+
+
+ Number of layers of the sample (e.g. bulk, monolayer, pentalayer, etc.)
+
+
+
+
+ Full chemical name of the sample
+
+
+
+
+ CAS registry number of the sample chemical content.
+
+
+
+
+ Gases might be fluxed on the surface for various reasons. Chemical designation,
+ or residual.
+
+
+
+
+ In the case of a fixed pressure measurement this is the scalar pressure. In the
+ case of an experiment in which pressure changes, or anyway is recorded, this is
+ an array of length m of pressures.
+
+
+
+
+ Element of evaporated surface dopant such as alkali or other
+
+
+
+
+ Nominal thickness of the evaporated dopant
+
+
+
+
+ Voltage applied to sample and sample holder.
+
+
+
+
+ Sample growth method (e. g. molecular beam epitaxy, chemical vapor deposition
+ etc.)
+
+
+
+
+ Name of the sample vendor (company or research group)
+
+
+
+
+ Material of the substrate in direct contact with the sample.
+
+
+
+
+ Physical state of the substrate, similar options to sample_state
+
+
+
+
+ Current to neutralize the photoemission current. This field may also be found in
+ NXmanpulator if present.
+
+
+
+
+ Possible bias of the sample with respect to analyser ground. This field may also
+ be found as sample_bias in NXmanipulator if present.
+
+
+
+
+ Further notes.
+
+
As a function of Wavelength
diff --git a/base_classes/NXsource.nxdl.xml b/base_classes/NXsource.nxdl.xml
index 85900d3f03..53946c7660 100644
--- a/base_classes/NXsource.nxdl.xml
+++ b/base_classes/NXsource.nxdl.xml
@@ -163,7 +163,41 @@
For storage rings, the current at the end of the most recent injection.
date and time of the most recent injection.
-
+
+
+ The center photon energy of the source, before it is
+ monochromatized or converted
+
+
+
+
+ The center wavelength of the source, before it is
+ monochromatized or converted
+
+
+
+
+ For pulsed sources, the energy of a single pulse
+
+
+
+
+ For pulsed sources, the pulse energy divided
+ by the pulse duration
+
+
+
+
+ Some facilities tag each bunch.
+ First bunch of the measurement
+
+
+
+
+ Last bunch of the measurement
+
+
+
"Engineering" location of source.