diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index 3df5e52..70c8835 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -24,9 +24,8 @@ phase.config.resolution = 0.5
 phase.initialize()
 
 #camtool = Camtool("sflca:10000")
+camtool.stop()
 camtool.start("simulation")
-x  = camtool.getValue("gr_x_fit_mean")
-dx = camtool.getValue("gr_x_fit_standard_deviation")
 
 class FitMean(Readable):
     def read(self):
@@ -38,20 +37,21 @@ class FitStdev(Readable):
         
 #x  =  Channel("SINEG01-DSCR190:X-SIM",  type = 'd', alias='SCR-X')
 #dx =  Channel("SINEG01-DSCR190:DX-SIM", type = 'd', alias='SCR-DX')
-
+x = FitMean()
+dx = FitStdev()
 
 try:
-    xb  = create_averager(FitMean(),  nb, 0.100)
-    dxb = create_averager(FitStdev(), nb, 0.100)
+    xb  = create_averager(x,  nb, 0.100)
+    dxb = create_averager(dx, 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)]
 finally:
     phase.close()
-#    camtool.close()
+    camtool.close()
 
-p = plot(None)[0]
+p = plot(None, title="Output")[0]
 p.clear()
 p.addSeries(LinePlotSeries("Energy"))
 p.addSeries(LinePlotSeries("Energy spread"))