make a work version

ref/.ipynb_checkpoints/test-checkpoint.ipynb

...ant4_simulation/.ipynb_checkpoints/__init__-checkpoint.py

ref/geant4_simulation/EMCal.py

ref/geant4_simulation/__init__.py

ref/geant4_simulation/__pycache__/__init__.cpython-39.pyc

ref/geant4_simulation/geometry/EMCal.py

ref/test.ipynb