<div dir="ltr">Hi, <div><br></div><div>I am unable to run the B1 example in GEANT4. Wonder if anybody knows what's going on. </div><div><br></div><div>I keep getting the following error when running the executable. </div>
<div><br></div><div>"Low energy electromagnetic data are needed...Please set the environmental variable G4LEDATA to point to your GE4EMLOW.</div><div>.....</div><div>Photon-evaporation data are needed....</div><div>
....G4NEUTRONXS are needed........"</div>
<div><br></div><div>After downloading the data (in tar.gz format), how do I update the data in geant4_10_00 on window? </div><div><br></div><div>Thanks a lot!</div><div>Stephen </div><div><br></div></div>