diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index c37b8c0..3df5e52 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -28,12 +28,22 @@ camtool.start("simulation")
 x  = camtool.getValue("gr_x_fit_mean")
 dx = camtool.getValue("gr_x_fit_standard_deviation")
 
+class FitMean(Readable):
+    def read(self):
+        return  camtool.getValue("gr_x_fit_mean")
+
+class FitStdev(Readable):
+    def read(self):
+        return  camtool.getValue("gr_x_fit_standard_deviation")
+        
 #x  =  Channel("SINEG01-DSCR190:X-SIM",  type = 'd', alias='SCR-X')
 #dx =  Channel("SINEG01-DSCR190:DX-SIM", type = 'd', alias='SCR-DX')
 
 
 try:
-    r = lscan(phase, [x, dx], start, stop, step , latency=lat)
+    xb  = create_averager(FitMean(),  nb, 0.100)
+    dxb = create_averager(FitStdev(), nb, 0.100)
+    r = lscan(phase, [xb, dxb], start, stop, step , latency=lat)
     rf_phase = r.getPositions(0)
     E   = [val.mean/1000.0/disp*energy0 for val in r.getReadable(0)]
     dE  = [val.mean/1000.0/disp*energy0 for val in r.getReadable(1)]