diff --git a/allowed.mac b/allowed.mac
index 8a82ada843f2aec56e93e72e39a6f85b386a125b..501288e86316594cbbc8e8d3b0c9b4a3db8a153b 100644
--- a/allowed.mac
+++ b/allowed.mac
@@ -19,15 +19,28 @@
 # energy spectrum
 /VK/source/betaSpectrum true
 /VK/source/betaEndPoint 5.40 MeV
-/VK/source/betaMinEnergy 5.00 MeV
+/VK/source/betaMinEnergy 0.00 MeV
 /VK/source/betaMaxEnergy 5.40 MeV
 
 # output 
 /VK/output/zeroSuppression true
 /VK/storeTrajectoryData false
 
-# run simulation
-/VK/output/openFile output/test1.root                
-/run/beamOn 1000
-/VK/output/openFile output/test2.root                
-/run/beamOn 1000
+# run simulations
+
+/VK/field/maxbfield 0.44 tesla
+/VK/output/openFile output/230517/allowed_bmax4400.root                
+/run/beamOn 50000000
+
+/VK/field/maxbfield 0.46 tesla
+/VK/output/openFile output/230517/allowed_bmax4600.root                
+/run/beamOn 50000000
+
+/VK/field/maxbfield 0.48 tesla
+/VK/output/openFile output/230517/allowed_bmax4800.root                
+/run/beamOn 50000000
+
+/VK/field/maxbfield 0.50 tesla
+/VK/output/openFile output/230517/allowed_bmax5000.root                
+/run/beamOn 50000000
+