diff --git a/script/users/TUM_PhD.py b/script/users/TUM_PhD.py
index 77c40de7..19f963a9 100644
--- a/script/users/TUM_PhD.py
+++ b/script/users/TUM_PhD.py
@@ -12,7 +12,7 @@ POSITIONS_B = [262]
 for nn in range(20):
     POSITIONS_B.append(POSITIONS_B[-1]+4)
 # BORON 1s
-REGION_B = {'name': 'B 1s peak+tail', 'elo': 62., 'ehi': 75., 'estep': 0.10, 'epass': 20, 'tstep': 1, 'iter': 1, 'cis': True}
+REGION_B = {'name': 'B 1s peak+tail', 'elo': 62., 'ehi': 75., 'estep': 0.10, 'epass': 20, 'tstep': 0.5, 'iter': 1, 'cis': True}
 REGIONS_B = [REGION_B]
 
 # XSP check for beam damage