PhilipHB
commented
3 years ago The warning is generated by Garfield++. It does not have to be a fault on Odie's side. My guess is, that you did not set the same maximum energy in your Garfield++ program. It would then default to 40eV, see https://gitlab.cern.ch/garfield/garfieldpp/-/blob/master/Source/MediumMagboltz.cc#L46
After I create a gas table using PyBoltz and Odie (code snippet below), I get a maximum energy warning when loading the gas table into Garfield and run a Macro simulation. I do not think PyBoltz is actually accepting my maximum electron energy. These warning start at 40eV, which is the default energy limit in MagBoltz.
" MediumMagboltz::GetElectronCollisionRate: Rate at 86.8656 eV is not included in the current table. Increasing energy range to 91.2089 eV.
"
Set up helper object
Odie = OdieRun()
Configure settings for our simulation
base_settings = { 'Gases': ['Ar', 'CH4'], 'Fractions': [98.5, 1.5], 'Max_collisions': 1e8, 'EField_Vcm': 100, 'Max_electron_energy': 400, 'Temperature_C': 23, 'Pressure_Torr': 3100.8, 'BField_Tesla': 0, 'BField_angle': 0, 'Angular_dist_model': 2, 'Enable_penning': 1, 'Enable_thermal_motion': 1, 'ConsoleOutputFlag': 0, 'NumSamples':100 }
t_start = time.time()
Load base settings into Odie, this is required for
running on a grid.
Odie.LoadSettings(base_settings, PrintSettings=True)
Odie also can read in the settings from a JSON file
Odie.LoadSettings(JSONFileName="input.json", PrintSettings=True)
Generate output for a grid of possible EFields
mine= 1 maxe = 1e4 samp = 2 GridOutput = Odie.GenerateGasGrid(mine, maxe, samp, LogScale=True)