diff --git a/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_model.py b/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_model.py
new file mode 100644
index 0000000000000000000000000000000000000000..fdfe78f403d033d5d613137a8fa818dd70bb1c55
--- /dev/null
+++ b/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_model.py
@@ -0,0 +1,46 @@
+from __future__ import print_function, absolute_import
+
+import mantid.simpleapi as mantid
+
+import os
+import json
+
+from Muon.GUI.Common import message_box
+from Muon.GUI import ElementalAnalysis
+
+
+class PeriodicTableModel(object):
+    def __init__(self):
+        self._peak_data = {}
+        self._peak_data_file = os.path.join(os.path.dirname(ElementalAnalysis.__file__), "peak_data.json")   
+        self.load_peak_data()  
+
+    def load_peak_data(self):
+        # using os.path.isfile allows file modifications to take place before opening:
+        # we don't want this.
+        try:
+            with open(self._peak_data_file, "r") as f:
+                try:
+                    self.peak_data = json.load(f)
+                except ValueError as error:
+                    message_box.warning(error)
+        except IOError as error:
+            message_box.warning(error)
+
+    @property
+    def peak_data(self):
+        return self._peak_data
+
+    @peak_data.setter
+    def peak_data(self, peak_data):
+        self._peak_data = peak_data
+        # leaves room for change event etc.?
+
+    @property
+    def peak_data_file(self):
+        return self._peak_data_file
+
+    @peak_data_file.setter
+    def peak_data_file(self, filepath):
+        self._peak_data_file = filepath
+        self.load_peak_data()
\ No newline at end of file
diff --git a/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_presenter.py b/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_presenter.py
index 3ea34ceeadfb16e9c726a8a943ab940230b04e27..65a534d4cb4950c47da1801a52894cf0296b4400 100644
--- a/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_presenter.py
+++ b/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_presenter.py
@@ -1,6 +1,7 @@
 class PeriodicTablePresenter(object):
-    def __init__(self, view):
+    def __init__(self, view, model):
         self.view = view
+        self.model = model
 
     @property
     def widget(self):
diff --git a/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_widget.py b/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_widget.py
index 039933da31656d8347e83e0b3fb7798377565e69..e370935527bd7cc567189f2b68a7d7b484413778 100644
--- a/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_widget.py
+++ b/scripts/Muon/GUI/ElementalAnalysis/PeriodicTable/periodic_table_widget.py
@@ -2,6 +2,7 @@ from __future__ import absolute_import
 
 from Muon.GUI.ElementalAnalysis.PeriodicTable.periodic_table_view import PeriodicTableView
 from Muon.GUI.ElementalAnalysis.PeriodicTable.periodic_table_presenter import PeriodicTablePresenter
+from Muon.GUI.ElementalAnalysis.PeriodicTable.periodic_table_model import PeriodicTableModel
 
 from PyQt4 import QtGui
 
@@ -10,7 +11,8 @@ class PeriodicTable(QtGui.QWidget):
     def __init__(self, parent=None):
         super(PeriodicTable, self).__init__(parent)
         view = PeriodicTableView(parent)
-        self._presenter = PeriodicTablePresenter(view)
+        model = PeriodicTableModel()
+        self._presenter = PeriodicTablePresenter(view, model)
 
     @property
     def presenter(self):
diff --git a/scripts/Muon/GUI/ElementalAnalysis/peak_data.json b/scripts/Muon/GUI/ElementalAnalysis/peak_data.json
new file mode 100644
index 0000000000000000000000000000000000000000..05046297ee26892acfc51a2156fe3c77a4c51dd3
--- /dev/null
+++ b/scripts/Muon/GUI/ElementalAnalysis/peak_data.json
@@ -0,0 +1,2393 @@
+{
+    "Ag": {
+        "Z": 47,
+        "A": 107.87,
+        "Primary": {
+            "K(4->1)": 3177.7,
+            "K(5->1)": 3184.9,
+            "L(3->2)": 868.1,
+            "L(4->2)": 900.7,
+            "M(4->3)": 304.7,
+            "6->5": 141
+        },
+        "Secondary": {
+            "K(2->1)": 3140.6,
+            "K(3->1)": 3147.8,
+            "K(6->1)": 4050.9,
+            "K(7->1)": 4042,
+            "L(5->2)": 1171.6,
+            "L(6->2)": 1207,
+            "L(7->2)": 1311.9,
+            "L(8->2)": 1347.8,
+            "M(5->3)": 308.3,
+            "M(6->3)": 444.8,
+            "M(7->3)": 448.9,
+            "M(8->3)": 521,
+            "M(9->3)": 525.2,
+            "M(10->3)": 567,
+            "5->4": 141.1,
+            "6->4": 217,
+            "7->4": 262.7,
+            "8->4": 292.5,
+            "7->5": 152,
+            "7->6": 76,
+            "8->6": 122.2
+        }
+    },
+    "Al": {
+        "Z": 13,
+        "A": 26.98,
+        "Primary": {
+            "K(2->1)": 346.8,
+            "L(3->2)": 66.1
+        },
+        "Secondary": {
+            "K(3->1)": 412.8,
+            "K(4->1)": 435.8,
+            "K(5->1)": 446.5,
+            "K(6->1)": 452.3,
+            "K(7->1)": 455.9,
+            "L(4->2)": 89.1,
+            "L(5->2)": 99.7,
+            "L(6->2)": 105.5,
+            "L(7->2)": 108.1,
+            "M(4->3)": 21.8,
+            "M(5->3)": 32.6,
+            "M(6->3)": 38.4,
+            "M(7->3)": 41.9
+        }
+    },
+    "Ar": {
+        "Z": 18,
+        "A": 39.95,
+        "Primary": {
+            "K(2->1)": 643.7,
+            "L(3->2)": 127.6
+        },
+        "Secondary": {
+            "K(3->1)": 770.7,
+            "K(4->1)": 815.1,
+            "K(5->1)": 835.7,
+            "K(6->1)": 846.8,
+            "K(7->1)": 853.5,
+            "K(8->1)": 857.9,
+            "L(4->2)": 171.8,
+            "L(5->2)": 192.3,
+            "L(6->2)": 203.5,
+            "L(7->2)": 210.1,
+            "M(4->3)": 44.2,
+            "M(5->3)": 64.7
+        }
+    },
+    "As": {
+        "Z": 33,
+        "A": 74.92,
+        "Primary": {
+            "K(3->1)": 1869.7,
+            "L(3->2)": 429,
+            "L(4->2)": 438.5,
+            "M(4->3)": 149.6
+        },
+        "Secondary": {
+            "K(2->1)": 1859.4,
+            "K(4->1)": 2297.4,
+            "K(5->1)": 2448.2,
+            "K(6->1)": 2517.3,
+            "L(5->2)": 579,
+            "L(6->2)": 588.7,
+            "L(7->2)": 648.2,
+            "L(8->2)": 658.4,
+            "L(9->2)": 685.4,
+            "L(10->2)": 694.2,
+            "M(5->3)": 218.9,
+            "M(6->3)": 256.5,
+            "M(7->3)": 279.4
+        }
+    },
+    "Au": {
+        "Z": 79,
+        "A": 196.97,
+        "Primary": {
+            "K(2->1)": 5590.6,
+            "K(4->1)": 5763.8,
+            "L(3->2)": 2343.5,
+            "L(5->2)": 2479.3,
+            "M(4->3)": 870,
+            "M(5->3)": 899.2,
+            "5->4": 400.2,
+            "6->4": 405.7,
+            "6->5": 216.8
+        },
+        "Secondary": {
+            "K(3->1)": 5747.3,
+            "L(4->2)": 2359.9,
+            "7->4": 615.5,
+            "8->4": 622,
+            "9->4": 744.8,
+            "7->5": 346.8
+        }
+    },
+    "B": {
+        "Z": 5,
+        "A": 10.81,
+        "Primary": {
+            "K(2->1)": 52.2
+        },
+        "Secondary": {
+            "K(3->1)": 61.9,
+            "K(4->1)": 65.3,
+            "K(5->1)": 66.9,
+            "L(3->2)": 9.7
+        }
+    },
+    "Ba": {
+        "Z": 56,
+        "A": 137.33,
+        "Primary": {
+            "K(3->1)": 3988.8,
+            "L(3->2)": 1227,
+            "L(4->2)": 1283.7,
+            "M(4->3)": 434,
+            "M(5->3)": 441.6,
+            "5->4": 200.6
+        },
+        "Secondary": {
+            "K(2->1)": 3922.9,
+            "K(4->1)": 5197.8,
+            "K(5->1)": 5213.7,
+            "L(5->2)": 1659.6,
+            "L(6->2)": 1721.9,
+            "L(7->2)": 1859.4,
+            "L(8->2)": 1923.6,
+            "M(6->3)": 633.3,
+            "M(7->3)": 641.8,
+            "M(8->3)": 741.6,
+            "M(9->3)": 750.5,
+            "M(10->3)": 806.4,
+            "M(11->3)": 815.1,
+            "M(12->3)": 848.9,
+            "M(13->3)": 857.9,
+            "6->4": 308.9,
+            "7->4": 374.1,
+            "8->4": 416.6
+        }
+    },
+    "Be": {
+        "Z": 4,
+        "A": 9.012,
+        "Primary": {
+            "K(2->1)": 33.4
+        },
+        "Secondary": {
+            "K(3->1)": 39.6,
+            "K(4->1)": 41.8,
+            "K(5->1)": 42.8,
+            "L(3->2)": 6.2
+        }
+    },
+    "Bi": {
+        "Z": 83,
+        "A": 208.98,
+        "Primary": {
+            "K(2->1)": 5841.1,
+            "K(3->1)": 6026.6,
+            "K(4->1)": 6037.8,
+            "L(3->2)": 2550.5,
+            "L(4->2)": 2560.1,
+            "L(5->2)": 2700.7,
+            "M(4->3)": 961.3,
+            "M(5->3)": 996.7,
+            "5->4": 442.2,
+            "6->4": 448.8,
+            "6->5": 239.5
+        },
+        "Secondary": {
+            "L(6->2)": 3511.3,
+            "L(7->2)": 3678.5,
+            "M(6->3)": 1400.6,
+            "M(7->3)": 1440.5,
+            "M(8->3)": 1640.5,
+            "M(9->3)": 1681.2,
+            "7->4": 679.9,
+            "8->4": 687.5,
+            "9->4": 823,
+            "10->4": 831.7,
+            "7->5": 383.1
+        }
+    },
+    "Br": {
+        "Z": 35,
+        "A": 79.9,
+        "Primary": {
+            "K(3->1)": 2053.1,
+            "L(3->2)": 482.3,
+            "L(4->2)": 494,
+            "M(4->3)": 170
+        },
+        "Secondary": {
+            "K(2->1)": 2040,
+            "K(4->1)": 2533.5,
+            "K(5->1)": 2702.6,
+            "K(6->1)": 2781.7,
+            "K(7->1)": 2823.6,
+            "K(8->1)": 2849.3,
+            "L(5->2)": 650.4,
+            "L(6->2)": 663.1,
+            "L(7->2)": 728.1,
+            "L(8->2)": 741,
+            "L(9->2)": 771.1,
+            "L(10->2)": 783.3,
+            "M(5->3)": 246.4,
+            "M(6->3)": 288.5
+        }
+    },
+    "C": {
+        "Z": 6,
+        "A": 12.01,
+        "Primary": {
+            "K(2->1)": 75.2,
+            "L(3->2)": 14
+        },
+        "Secondary": {
+            "K(3->1)": 89.2,
+            "K(4->1)": 94.1,
+            "K(5->1)": 96.4,
+            "L(4->2)": 18.9
+        }
+    },
+    "Ca": {
+        "Z": 20,
+        "A": 40.08,
+        "Primary": {
+            "K(2->1)": 783.6,
+            "L(3->2)": 157.3
+        },
+        "Secondary": {
+            "K(3->1)": 940.6,
+            "K(4->1)": 995.3,
+            "K(5->1)": 1020.7,
+            "K(6->1)": 1034.4,
+            "K(7->1)": 1042.7,
+            "L(4->2)": 212,
+            "L(5->2)": 237.2,
+            "L(6->2)": 250.9,
+            "L(7->2)": 259.4,
+            "L(8->2)": 264,
+            "M(4->3)": 54.8,
+            "M(5->3)": 80.1,
+            "M(6->3)": 93.9,
+            "M(7->3)": 102.3
+        }
+    },
+    "Cd": {
+        "Z": 48,
+        "A": 112.41,
+        "Primary": {
+            "K(3->1)": 3231.2,
+            "K(5->1)": 3266.2,
+            "K(6->1)": 3269.8,
+            "K(7->1)": 3277,
+            "L(3->2)": 907,
+            "L(4->2)": 941.9,
+            "M(4->3)": 317.7,
+            "M(5->3)": 321.7
+        },
+        "Secondary": {
+            "K(2->1)": 3226.4,
+            "K(4->1)": 3237.3,
+            "K(8->1)": 4170.5,
+            "K(9->1)": 4494.6,
+            "L(5->2)": 1224.3,
+            "L(6->2)": 1262.4,
+            "L(7->2)": 1371.1,
+            "L(8->2)": 1410.2,
+            "L(9->2)": 1451.4,
+            "L(10->2)": 1490.5,
+            "M(6->3)": 464.3,
+            "M(7->3)": 468.6,
+            "M(8->3)": 543.9,
+            "M(9->3)": 548.4,
+            "M(10->3)": 591.8,
+            "M(11->3)": 596.6,
+            "5->4": 146.3,
+            "6->4": 226,
+            "7->4": 273.5,
+            "6->5": 127.4,
+            "7->6": 79.6
+        }
+    },
+    "Ce": {
+        "Z": 58,
+        "A": 140.12,
+        "Primary": {
+            "K(4->1)": 4157.9,
+            "K(5->1)": 4170.7,
+            "L(3->2)": 1314.1,
+            "L(4->2)": 1376.9,
+            "M(4->3)": 463.5,
+            "M(5->3)": 472.4,
+            "5->4": 215.4
+        },
+        "Secondary": {
+            "K(2->1)": 4085.3,
+            "K(3->1)": 4097.4,
+            "K(6->1)": 5465.7,
+            "K(7->1)": 5482.1,
+            "L(5->2)": 1778,
+            "L(6->2)": 1847.9,
+            "L(7->2)": 1993.8,
+            "L(8->2)": 2065.3,
+            "M(6->3)": 678.2,
+            "M(7->3)": 688.1,
+            "M(8->3)": 794.7,
+            "M(9->3)": 804.9,
+            "M(10->3)": 865.3,
+            "M(11->3)": 875.6,
+            "6->4": 331.5,
+            "7->4": 401.5,
+            "6->5": 116,
+            "7->5": 186.1,
+            "8->5": 231
+        }
+    },
+    "Cl": {
+        "Z": 17,
+        "A": 35.45,
+        "Primary": {
+            "K(2->1)": 578.7,
+            "L(3->2)": 113.4
+        },
+        "Secondary": {
+            "K(3->1)": 691.9,
+            "K(4->1)": 731.5,
+            "K(5->1)": 749.7,
+            "K(6->1)": 759.7,
+            "K(7->1)": 765.4,
+            "L(4->2)": 152.9,
+            "L(5->2)": 171.1,
+            "L(6->2)": 181.2,
+            "L(7->2)": 187,
+            "M(4->3)": 39.5,
+            "M(5->3)": 57.7
+        }
+    },
+    "Co": {
+        "Z": 27,
+        "A": 58.93,
+        "Primary": {
+            "K(3->1)": 1343.1,
+            "L(3->2)": 286.6,
+            "L(4->2)": 291.1,
+            "M(4->3)": 99.9,
+            "M(5->3)": 146
+        },
+        "Secondary": {
+            "K(2->1)": 1338.2,
+            "K(4->1)": 1629,
+            "K(5->1)": 1729.4,
+            "K(6->1)": 1775.9,
+            "K(7->1)": 1801.6,
+            "K(8->1)": 1816.3,
+            "L(5->2)": 386.7,
+            "L(6->2)": 391.3,
+            "L(7->2)": 433.1,
+            "L(8->2)": 437.7,
+            "L(9->2)": 458.4,
+            "L(10->2)": 463.5,
+            "L(11->2)": 473.4,
+            "L(12->2)": 478,
+            "M(6->3)": 171.1,
+            "M(7->3)": 186.5
+        }
+    },
+    "Cr": {
+        "Z": 24,
+        "A": 52,
+        "Primary": {
+            "K(3->1)": 1092.5,
+            "L(3->2)": 226,
+            "L(4->2)": 228.8,
+            "M(4->3)": 78.3,
+            "5->4": 35.4
+        },
+        "Secondary": {
+            "K(2->1)": 1089.3,
+            "K(4->1)": 1317.8,
+            "K(5->1)": 1397.2,
+            "K(6->1)": 1433.7,
+            "K(7->1)": 1453.8,
+            "K(8->1)": 1465.5,
+            "L(5->2)": 305,
+            "L(6->2)": 308,
+            "L(7->2)": 341.6,
+            "L(8->2)": 344.9,
+            "L(9->2)": 361.4,
+            "L(10->2)": 364.5,
+            "L(11->2)": 373.3,
+            "L(12->2)": 376.5,
+            "M(5->3)": 115,
+            "M(6->3)": 134.9,
+            "M(7->3)": 146.9,
+            "6->4": 55.4,
+            "7->4": 67.4
+        }
+    },
+    "Cs": {
+        "Z": 55,
+        "A": 132.91,
+        "Primary": {
+            "K(3->1)": 3902.7,
+            "L(3->2)": 1185.7,
+            "L(4->2)": 1238.9,
+            "M(4->3)": 418.4,
+            "M(5->3)": 425.4,
+            "5->4": 193.3
+        },
+        "Secondary": {
+            "K(2->1)": 3840.7,
+            "K(4->1)": 5073,
+            "K(5->1)": 5086.1,
+            "L(5->2)": 1602.9,
+            "L(6->2)": 1661.7,
+            "L(7->2)": 1795.7,
+            "L(8->2)": 1856.1,
+            "M(6->3)": 610.5,
+            "M(7->3)": 618.4,
+            "M(8->3)": 714.9,
+            "M(9->3)": 723.5,
+            "6->4": 297.7,
+            "7->4": 360.7
+        }
+    },
+    "Cu": {
+        "Z": 29,
+        "A": 63.54,
+        "Primary": {
+            "K(3->1)": 1514.2,
+            "L(3->2)": 330.9,
+            "L(4->2)": 336.6,
+            "M(4->3)": 115.9,
+            "6->4": 82.4
+        },
+        "Secondary": {
+            "K(2->1)": 1507.7,
+            "K(4->1)": 1843.7,
+            "K(5->1)": 1959.7,
+            "K(6->1)": 2013.1,
+            "K(7->1)": 2042.1,
+            "K(8->1)": 2059.9,
+            "K(9->1)": 2070.9,
+            "L(5->2)": 446.1,
+            "L(6->2)": 452.2,
+            "L(7->2)": 499.4,
+            "L(8->2)": 505.7,
+            "L(9->2)": 528.3,
+            "L(10->2)": 534.4,
+            "L(11->2)": 545.6,
+            "L(12->2)": 564.5,
+            "M(5->3)": 169.2,
+            "M(6->3)": 198.1,
+            "M(7->3)": 215.6,
+            "M(8->3)": 234.4,
+            "M(9->3)": 239.8,
+            "5->4": 53.5,
+            "7->4": 99.8,
+            "8->4": 111.4
+        }
+    },
+    "Dy": {
+        "Z": 66,
+        "A": 162.5,
+        "Primary": {
+            "K(4->1)": 4633.5,
+            "K(5->1)": 4644.2,
+            "L(6->2)": 1649.4,
+            "L(11->2)": 1792.7,
+            "M(4->3)": 604.9,
+            "M(5->3)": 619.4,
+            "5->4": 278.3,
+            "6->4": 281,
+            "6->5": 150.7
+        },
+        "Secondary": {
+            "K(2->1)": 4602.1,
+            "K(3->1)": 4610.8,
+            "K(6->1)": 4676.9,
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+            "5->4": 102.7,
+            "6->4": 157.7,
+            "7->4": 190.8,
+            "8->4": 212.4
+        }
+    },
+    "Electrons": {
+        "72.8": 0.59,
+        "75.0": 1,
+        "84.45": 0.12,
+        "84.94": 0.22,
+        "87.3": 0.1
+    },
+    "Gammas": {
+        "Primary": {
+            "g54Mn25": [
+                1528
+            ],
+            "g55Mn25": [
+                126
+            ]
+        },
+        "Secondary": {
+            "72Ge(n,n')72Ge": [
+                691
+            ],
+            "73Ge(n,g)74Ge": null,
+            "74Ge(n,n')74Ge": [
+                595.7
+            ],
+            "g196Pt78": [
+                355.8
+            ],
+            "g54Mn25": [
+                54.5,
+                156.2,
+                212,
+                251.6,
+                376.9
+            ],
+            "g61Ni28": [
+                67
+            ],
+            "g62Ni28": [
+                1173
+            ],
+            "g63Ni28": [
+                155
+            ],
+            "g63Ni28(1.7us)": [
+                87.1
+            ],
+            "g65Ni28": [
+                692.3
+            ]
+        }
+    }
+}