diff --git a/script/SchofieldScan.py b/script/SchofieldScan.py
index dc8374d6..d9f6b345 100644
--- a/script/SchofieldScan.py
+++ b/script/SchofieldScan.py
@@ -9,6 +9,7 @@ TYPE ('CIS' or 'CFS')
 STEP (double)
 """
 VECTOR = [ 630.0, 634.0]
+LATENCY = 0.0
 
 
 class SpectrumReader(ReadonlyRegisterBase, ReadonlyRegisterArray):
@@ -17,6 +18,7 @@ class SpectrumReader(ReadonlyRegisterBase, ReadonlyRegisterArray):
         self.offset = Eph.getSetpoint().take() - VECTOR[0]
         self.setup()
         trig_scienta()
+        time.sleep(0.5)
         return Scienta.getSpectrum().read()
 
     def getSize(self):
@@ -38,7 +40,7 @@ class SpectrumReader2(SpectrumReader):
         Scienta.getLowEnergy().write(94.0 + self.offset)
         Scienta.getHighEnergy().write(98.0 + self.offset)
         global energy_scale_array
-        energy_scale_array.append([Scienta.getLowEnergy().take(), Scienta.getHighEnergy().take(), Scienta.getStepSize().take()])
+        energy_scale_array = energy_scale_array + [Scienta.getLowEnergy().take(), Scienta.getHighEnergy().take(), Scienta.getStepSize().take()]
 
 class SpectrumReader3(SpectrumReader):
     def setup(self):
@@ -46,7 +48,7 @@ class SpectrumReader3(SpectrumReader):
         Scienta.getLowEnergy().write(98.0 + self.offset)
         Scienta.getHighEnergy().write(108.0 + self.offset)        
         global energy_scale_array, energy_scale_table
-        energy_scale_array.append([Scienta.getLowEnergy().take(), Scienta.getHighEnergy().take(), Scienta.getStepSize().take()])
+        energy_scale_array = energy_scale_array + [Scienta.getLowEnergy().take(), Scienta.getHighEnergy().take(), Scienta.getStepSize().take()]
         append_dataset(energy_scale_table,energy_scale_array)