Persistent Lines of Singly Ionized Einsteinium ( Es II )

Wavelength  Energy         Configuration        Term         J
   (Å)      Levels (cm-1)

 2708.66         0.00      5f11(4I°15/2)7s      (15/2,1/2)°  8
             36907.83      5f11(4I°15/2)7p      (15/2,3/2)   9
  return
 
 2787.10       938.65      5f11(4I°15/2)7s      (15/2,1/2)°  7
             36807.72      5f106d7s                          7
  return
 
 2815.15       938.65      5f11(4I°15/2)7s      (15/2,1/2)°  7
             36450.29      5f11(2H°11/2)7p      (11/2,1/2)   6
  return
 
 3547.75         0.00      5f11(4I°15/2)7s      (15/2,1/2)°  8
             28178.81      5f117p               (15/2,1/2)   8
  return
 
 3602.43         0.00      5f11(4I°15/2)7s      (15/2,1/2)°  8
             27751.11      5f117p               (15/2,1/2)   7
  return
 
 3670.01       938.65      5f11(4I°15/2)7s      (15/2,1/2)°  7
             28178.81      5f117p               (15/2,1/2)   8
  return
 
 3728.55       938.65      5f11(4I°15/2)7s      (15/2,1/2)°  7
             27751.11      5f117p               (15/2,1/2)   7
  return