Created a new file to start the gamma ray packet source documentation…

… and added basic descriptions of the packet properties.

docs/physics/montecarlo/gammapacketsource.ipynb

@@ -0,0 +1,40 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Gamma Ray Packet Source\n",
+    "\n",
+    "## Packet Initialization\n",
+    "\n",
+    "### Packet Properties\n",
+    "Each packet has the properties location, direction, energy, frequency (nu), and time.\n",
+    "\n",
+    "__Location__ is the position of of the packet. It is a function of the radius of the sphere.\n",
+    "\n",
+    "__Direction__ is the direction the packet is travelling. It is a function of angles $\\theta$ and $\\phi$.\n",
+    "\n",
+    "__Energy__ is the energy of the packet.\n",
+    "\n",
+    "__Nu__ is the frequency that the photons in the packet have.\n",
+    "\n",
+    "__Time__ is a property exclusive to the gamma ray packet source. It is sampled randomly from the decay of either Nickel-56 or Cobalt-56. \n",
+    "\n"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "tardis",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "name": "python",
+   "version": "3.11.5"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}