diff --git a/script/XAS.py b/script/XAS.py
index 7672c897..2727121a 100644
--- a/script/XAS.py
+++ b/script/XAS.py
@@ -7,14 +7,14 @@ SENSORS = (Keithley1, Keithley2, MachineCurrent)
 
 #SENSORS = (SampleCurrent, RefCurrent, AuxCurrent, AuxVoltage, MachineCurrent)
 #SENSORS = (SampleCurrent, RefCurrent, AuxCurrent, MachineCurrent, OpticsCameraCentroidX, OpticsCameraSigmaX)
-STARTPOS = (850)
-ENDPOS = (1000)
+STARTPOS = (910)
+ENDPOS = (950)
 #NUMPOINTS = 76
 STEPSIZE = 0.1
 LATENCY = 0.1
 DWELL = 0.1
 
-ENDSCAN = True # close shutter at end
+ENDSCAN = False # close shutter at end
 
 
 def trig():