Add some simplified notebooks for data reduction

docs/user-guide/dream/index.md

@@ -5,6 +5,7 @@
 maxdepth: 1
 ---
 
+workflows/index
 dream-data-reduction
 dream-instrument-view
 workflow-widget-dream

docs/user-guide/dream/workflows/dream-proton-charge-norm.ipynb

@@ -0,0 +1,189 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "0",
+   "metadata": {},
+   "source": [
+    "# DREAM data reduction - Normalized by proton charge"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import scipp as sc\n",
+    "\n",
+    "from ess import dream, powder\n",
+    "import ess.dream.data  # noqa: F401\n",
+    "from ess.powder.types import *"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "2",
+   "metadata": {},
+   "source": [
+    "## Create and configure the workflow"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "3",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "workflow = dream.DreamGeant4Workflow(run_norm=powder.RunNormalization.proton_charge)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "4",
+   "metadata": {},
+   "source": [
+    "### Files"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "workflow[Filename[SampleRun]] = dream.data.simulated_diamond_sample()\n",
+    "workflow[Filename[VanadiumRun]] = dream.data.simulated_vanadium_sample()\n",
+    "workflow[Filename[BackgroundRun]] = dream.data.simulated_empty_can()\n",
+    "workflow[CalibrationFilename] = None"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "6",
+   "metadata": {},
+   "source": [
+    "### Masks"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "7",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "workflow[TofMask] = lambda x: (x < sc.scalar(0.0, unit=\"ns\")) | (\n",
+    "        x > sc.scalar(86e6, unit=\"ns\")\n",
+    ")\n",
+    "workflow[TwoThetaMask] = None\n",
+    "workflow[WavelengthMask] = None\n",
+    "workflow = powder.with_pixel_mask_filenames(workflow, [])"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "8",
+   "metadata": {},
+   "source": [
+    "### Other parameters"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "workflow[NeXusDetectorName] = \"mantle\"\n",
+    "workflow[UncertaintyBroadcastMode] = UncertaintyBroadcastMode.drop\n",
+    "workflow[DspacingBins] = sc.linspace(\"dspacing\", 0.0, 2.3434, 201, unit=\"angstrom\")"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "10",
+   "metadata": {},
+   "source": [
+    "## Use the workflow"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "11",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "results = workflow.compute([IofTof, ReducedTofCIF])"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "12",
+   "metadata": {},
+   "source": [
+    "## Plot and save"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "13",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "results[IofTof].hist().plot()"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "14",
+   "metadata": {},
+   "source": [
+    "We can now save the result to disk:"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "15",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "cif_data = results[ReducedTofCIF]\n",
+    "\n",
+    "cif_data.comment = \"\"\"This file was generated with the DREAM data reduction user guide\n",
+    "in the documentation of ESSdiffraction.\n",
+    "See https://scipp.github.io/essdiffraction/\n",
+    "\"\"\"\n",
+    "cif_data.save('reduced.cif')"
+   ]
+  }
+ ],
+ "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": "3.12.7"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}

docs/user-guide/dream/workflows/index.md

@@ -0,0 +1,9 @@
+# DREAM reduction workflows
+
+```{toctree}
+---
+maxdepth: 1
+---
+
+dream-proton-charge-norm
+```