diff --git a/script/RFscan/GunScan.py b/script/RFscan/GunScan.py
index 412d1cd..619d7a5 100644
--- a/script/RFscan/GunScan.py
+++ b/script/RFscan/GunScan.py
@@ -43,8 +43,8 @@ try:
     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/1e6/disp*energy0 for val in r.getReadable(0)]
-    dE  = [val.mean/1e6/disp*energy0 for val in r.getReadable(1)]
+    E   = [energy0 * (1 + val.mean / 1e6 / disp) for val in r.getReadable(0)]
+    dE  = [energy0 * (val.mean / 1e6 / disp) for val in r.getReadable(1)]
 finally:
     phase.close()
     #my_camtool.close()