Merge pull request #64 from ColwynGulliford/add_H2+_species

Update species for H2+
ChristopherMayes · Jun 30, 2024 · 8fe25bd · 8fe25bd
2 parents 39a6fcc + af5db35
commit 8fe25bd
Showing 1 changed file with 11 additions and 3 deletions.
diff --git a/pmd_beamphysics/species.py b/pmd_beamphysics/species.py
@@ -11,25 +11,33 @@
 
 mhmc2 = mpc2 + mec2 * 2 # H- mass energy equivalent in MeV
 
+mH2pc2 = 2*mpc2 + mec2 # Molecular Hydrogen Ion H2+
+
 e_charge = scipy.constants.e
 c_light = scipy.constants.c
 
 CHARGE_OF = {'electron': -e_charge,
             'positron': e_charge,
             'proton': e_charge,
-            'H-': -e_charge}
+            'H-': -e_charge,
+            'H2+': e_charge,
+            }
 
 CHARGE_STATE = {
     'electron': -1,
     'positron': 1,
     'proton': 1,
-    'H-': -1}
+    'H-': -1,
+    'H2+': +1,
+    }
 
 
 MASS_OF = {'electron': mec2,
            'positron': mec2,
            'proton': mpc2,
-           'H-': mhmc2}
+           'H-': mhmc2,
+           'H2+': mH2pc2,
+           }