diff --git a/superxas_bec/device_configs/timepix.yaml b/superxas_bec/device_configs/timepix.yaml
index f9211dc..7c7f5b9 100644
--- a/superxas_bec/device_configs/timepix.yaml
+++ b/superxas_bec/device_configs/timepix.yaml
@@ -11,21 +11,6 @@
 #   readoutPriority: baseline
 #   softwareTrigger: false
 
-samx:
-  readoutPriority: baseline
-  deviceClass: ophyd_devices.SimPositioner
-  deviceConfig:
-    delay: 1
-    limits:
-      - -50
-      - 50
-    tolerance: 0.01
-    update_frequency: 400
-  deviceTags:
-    - user motors
-  enabled: true
-  readOnly: false
-
 timepix:
   readoutPriority: async
   description: ASI Serval Timepix Detector
@@ -39,3 +24,14 @@ timepix:
   enabled: true
   readOnly: false
   softwareTrigger: true
+
+ic1:
+  readoutPriority: monitored
+  description: Ionization Chamber 1
+  deviceClass: ophyd.EpicsSignalRO
+  deviceConfig:
+    read_pv: X10DA-ES1-SAI_01:MEAN
+    auto_monitor: True
+  onFailure: raise
+  enabled: True
+  softwareTrigger: False
diff --git a/superxas_bec/devices/timepix/timepix.py b/superxas_bec/devices/timepix/timepix.py
index cb28cda..3f3485a 100644
--- a/superxas_bec/devices/timepix/timepix.py
+++ b/superxas_bec/devices/timepix/timepix.py
@@ -268,6 +268,20 @@ class Timepix(PSIDeviceBase, TimePixControl):
         doc="Spectra signal of the TimePix detector.",
     )
 
+    xes_data_accumulated_1 = Cpt(
+        AsyncSignal,
+        name="xes_accumulated_energy_1",
+        ndim=1,
+        max_size=1000,
+        doc="1D time spectra for energy bin 2.",
+    )
+    xes_data_accumulated_2 = Cpt(
+        AsyncSignal,
+        name="xes_accumulated_energy_2",
+        ndim=1,
+        max_size=1000,
+        doc="1D time spectra for energy bin 2.",
+    )
     file_event = Cpt(
         FileEventSignal, name="file_event", doc="File event signal for TimePix detector."
     )
@@ -325,6 +339,9 @@ class Timepix(PSIDeviceBase, TimePixControl):
         self._readout_time = self.MIN_DETECTOR_READOUT_TIME
         self.r_lock = threading.RLock()  # Lock to access the message buffer safely
 
+        self.accumulated_data_e1 = None
+        self.accumulated_data_e2 = None
+
     def stage(self) -> list[object] | StatusBase:  # type: ignore
         """Stage the device.
 
@@ -418,12 +435,26 @@ class Timepix(PSIDeviceBase, TimePixControl):
         self.xes_data.put(
             xes_data, async_update={"type": "add", "max_shape": [None, troin, n_energy_points]}
         )
-        self.xes_energy_1.put(
-            xes_data[:, 0], async_update={"type": "add", "max_shape": [None, troin]}
-        )
-        if n_energy_points > 1:
-            self.xes_energy_2.put(
-                xes_data[:, 1], async_update={"type": "add", "max_shape": [None, troin]}
+        if n_energy_points == 8:
+            data_1 = np.sum(xes_data[:, 0:4], axis=1)
+            data_2 = np.sum(xes_data[:, 4:8], axis=1)
+            self.xes_energy_1.put(data_1, async_update={"type": "add", "max_shape": [None, troin]})
+            self.xes_energy_2.put(data_2, async_update={"type": "add", "max_shape": [None, troin]})
+            if self.accumulated_data_e1 is None:
+                self.accumulated_data_e1 = data_1
+            else:
+                self.accumulated_data_e1 += data_1
+            if self.accumulated_data_e2 is None:
+                self.accumulated_data_e2 = data_2
+            else:
+                self.accumulated_data_e2 += data_2
+            self.xes_data_accumulated_1.put(
+                self.accumulated_data_e1,
+                async_update={"type": "replace", "max_shape": [None, troin]},
+            )
+            self.xes_data_accumulated_2.put(
+                self.accumulated_data_e2,
+                async_update={"type": "replace", "max_shape": [None, troin]},
             )
         self.xes_spectra.put(
             xes_data.sum(axis=1), async_update={"type": "add", "max_shape": [None, troin]}
@@ -620,6 +651,8 @@ class Timepix(PSIDeviceBase, TimePixControl):
 
     def on_stage(self) -> StatusBase | None:
         """Called while staging the device."""
+        self.accumulated_data_e1 = None
+        self.accumulated_data_e2 = None
         scan_msg: ScanStatusMessage = self.scan_info.msg  # type: ignore
         exp_time = scan_msg.scan_parameters.get("exp_time", 0)
         if exp_time - self._readout_time <= 0: