diff --git a/pynxtools/dataconverter/readers/xrd/Untitled.ipynb b/pynxtools/dataconverter/readers/xrd/Untitled.ipynb
new file mode 100644
index 000000000..b0fe84a28
--- /dev/null
+++ b/pynxtools/dataconverter/readers/xrd/Untitled.ipynb
@@ -0,0 +1,80 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "bc15a0fb-c139-4f5f-8602-a6644e1e92f0",
+   "metadata": {},
+   "outputs": [
+    {
+     "ename": "RuntimeError",
+     "evalue": "module compiled against API version 0x10 but this version of numpy is 0xe",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mRuntimeError\u001b[0m                              Traceback (most recent call last)",
+      "\u001b[0;31mRuntimeError\u001b[0m: module compiled against API version 0x10 but this version of numpy is 0xe"
+     ]
+    },
+    {
+     "ename": "ImportError",
+     "evalue": "numpy.core.multiarray failed to import",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
+      "\u001b[0;31mImportError\u001b[0m                               Traceback (most recent call last)",
+      "\u001b[0;32m/tmp/ipykernel_29230/4118053084.py\u001b[0m in \u001b[0;36m<cell line: 1>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0;32mfrom\u001b[0m \u001b[0mpynxtools\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mdataconverter\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mreaders\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mxrd\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mxrd_parser\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mparse_and_convert_file\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
+      "\u001b[0;32m~/NOMAD-FAIRmat/GH/pynxtools/pynxtools/dataconverter/readers/xrd/xrd_parser.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m     22\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mos\u001b[0m  \u001b[0;31m# for file path operations\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     23\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mxml\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0metree\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mElementTree\u001b[0m \u001b[0;32mas\u001b[0m \u001b[0mET\u001b[0m \u001b[0;31m# for XML parsing\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 24\u001b[0;31m \u001b[0;32mfrom\u001b[0m \u001b[0mxrayutilities\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mio\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mpanalytical_xml\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mXRDMLFile\u001b[0m \u001b[0;31m# for reading XRDML files\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     25\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     26\u001b[0m \u001b[0;32mclass\u001b[0m \u001b[0mFileReader\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
+      "\u001b[0;32m~/NOMAD-FAIRmat/GH/pynxtools/.pyenv_3_10/lib/python3.10/site-packages/xrayutilities/__init__.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m     30\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     31\u001b[0m \u001b[0;31m# load configuration\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 32\u001b[0;31m \u001b[0;32mfrom\u001b[0m \u001b[0;34m.\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0m__path__\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0manalysis\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mconfig\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mio\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mmaterials\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mmath\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0msimpack\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     33\u001b[0m from .experiment import (GID, GISAXS, HXRD, Experiment, FourC, NonCOP,\n\u001b[1;32m     34\u001b[0m                          PowderExperiment, QConversion)\n",
+      "\u001b[0;32m~/NOMAD-FAIRmat/GH/pynxtools/.pyenv_3_10/lib/python3.10/site-packages/xrayutilities/analysis/__init__.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m     25\u001b[0m \"\"\"\n\u001b[1;32m     26\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 27\u001b[0;31m from .line_cuts import (get_arbitrary_line, get_omega_scan, get_qx_scan,\n\u001b[0m\u001b[1;32m     28\u001b[0m                         \u001b[0mget_qy_scan\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mget_qz_scan\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mget_radial_scan\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     29\u001b[0m                         get_ttheta_scan)\n",
+      "\u001b[0;32m~/NOMAD-FAIRmat/GH/pynxtools/.pyenv_3_10/lib/python3.10/site-packages/xrayutilities/analysis/line_cuts.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m     19\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     20\u001b[0m \u001b[0;32mfrom\u001b[0m \u001b[0;34m.\u001b[0m\u001b[0;34m.\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mconfig\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mmath\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 21\u001b[0;31m \u001b[0;32mfrom\u001b[0m \u001b[0;34m.\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mexperiment\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mHXRD\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     22\u001b[0m \u001b[0;32mfrom\u001b[0m \u001b[0;34m.\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mgridder\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mFuzzyGridder1D\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     23\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
+      "\u001b[0;32m~/NOMAD-FAIRmat/GH/pynxtools/.pyenv_3_10/lib/python3.10/site-packages/xrayutilities/experiment.py\u001b[0m in \u001b[0;36m<module>\u001b[0;34m\u001b[0m\n\u001b[1;32m     37\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     38\u001b[0m \u001b[0;31m# package internal imports\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 39\u001b[0;31m \u001b[0;32mfrom\u001b[0m \u001b[0;34m.\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mconfig\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mcxrayutilities\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mmath\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mutilities\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     40\u001b[0m \u001b[0;32mfrom\u001b[0m \u001b[0;34m.\u001b[0m\u001b[0mexception\u001b[0m \u001b[0;32mimport\u001b[0m \u001b[0mInputError\u001b[0m\u001b[0;34m\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     41\u001b[0m \u001b[0;34m\u001b[0m\u001b[0m\n",
+      "\u001b[0;31mImportError\u001b[0m: numpy.core.multiarray failed to import"
+     ]
+    }
+   ],
+   "source": [
+    "from pynxtools.dataconverter.readers.xrd.xrd_parser import parse_and_convert_file"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "945d80f2-9fdd-4e61-8ff2-d721e50000b0",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import numpy.core.multiarray"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "98f6e21d-6c50-4efa-bdce-3ac1ef4c4df0",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.12"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/pynxtools/dataconverter/readers/xrd/reader.py b/pynxtools/dataconverter/readers/xrd/reader.py
index f6a83db96..2ffd6da8f 100644
--- a/pynxtools/dataconverter/readers/xrd/reader.py
+++ b/pynxtools/dataconverter/readers/xrd/reader.py
@@ -52,7 +52,7 @@
 XRD_FILE_EXTENSIONS = [".xrdml", ".udf", ".raw", ".xye"]
 
 
-class STMReader(BaseReader):
+class XRDReader(BaseReader):
     """ Reader for XPS.
     """
 
@@ -118,4 +118,4 @@ def read(self,
         return filled_template
 
 
-READER = STMReader
+READER = XRDReader