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electrostatic_calculations [2015/12/02 14:05]
perezlou [Gating grid]
electrostatic_calculations [2016/08/30 13:21] (current)
perezlou [PCB Electrodes field calculations]
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 ====== Electrostatic Calculations ====== ====== Electrostatic Calculations ======
-We performed electrostatic calculation with Elmer FEM code to chech the uniformity of the drift field in the field cage and look for potential sparking points.+We performed electrostatic calculation with Elmer FEM code to check the uniformity of the drift field in the field cage and look for potential sparking points.
 {{ ::geometry.png?300 |}} {{ ::geometry.png?300 |}}
 == Dimensions of the chamber == == Dimensions of the chamber ==
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   *Gating grid placed 2 cm above the MICROMEGAS detector   *Gating grid placed 2 cm above the MICROMEGAS detector
 ==== Electrostatic Potential and Drift Lines ==== ==== Electrostatic Potential and Drift Lines ====
-{{ :lines.png?300 | Gatind grid off}} +{{ :lines.png?300 | Gating grid off}} 
-{{ :lines_on.png?300 | Gatind grid on}}+{{ :lines_on.png?300 | Gating grid on}}
 ==== Electrostatic Field and Drift Lines ==== ==== Electrostatic Field and Drift Lines ====
 {{ :e_fielddec2015.png?300 |Electrostatic field magnitude}} {{ :e_fielddec2015.png?300 |Electrostatic field magnitude}}
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   *-200 V   *-200 V
 === Garfield Simulations === === Garfield Simulations ===
 +Gating grid off\\
 +{{:gg_garfieldl_unbiased.png?300|}}
 +{{:gg_garfield_potential_unbiased.png?300|}}
 +
 +Gating grid on 2mm pitch 20V\\
 +{{:gg_garfield_potential.png?300|}}
 +{{:gg_garfield_drift.png?300|}}
 +
 +Gating grid on 2mm pitch 40V\\
 +{{:gg_garfield_potential_40.png?300|}}
 +{{:gg_garfield_drift40.png?300|}}
 +
 +Gating grid on 1mm pitch 20V\\
 +{{:gg_garfield_potential_1mm.png?300|}}
 +{{:gg_garfield_drift_1mm.png?300|}}
 +
 +Gating Grid Transparency Calculation\\
 +{{ :gg_transmission.png?300 |}}
 +
 +==== PCB Electrodes field calculations ====
 +Calculation of the electrostatic field in the Anode electrodes, with and without an embedded electrode.
 +{{ :electrodes.png?300 |}}
 +Results available in {{:electrodes.pdf|}}
  
electrostatic_calculations.1449083113.txt.gz · Last modified: 2015/12/02 14:05 by perezlou