function reinitializeSimulator(this)
    %% PHYSICAL CONSTANTS
    pc = Helper.PhysicsConstants;
    %% SIMULATION PARAMETERS
    this.NozzleLength                 = 60e-3;
    this.NozzleRadius                 = 2.60e-3;
    this.Beta                         = 2 * (this.NozzleRadius/this.NozzleLength); 
    this.ClausingFactor               = this.calculateClausingFactor();
    this.ApertureCut                  = max(2.5e-3,this.NozzleRadius);
    this.OvenDistance                 = (25+12.5)*1e-3 + (this.NozzleRadius + this.ApertureCut) / tan(15/360 * 2 * pi);
    % Distance between the nozzle and the 2-D MOT chamber center
    % 25 is the beam radius/sqrt(2)
    % 12.5 is the radius of the oven
    % 15 eg is the angle between the 2-D MOT chamber center and the nozzle
    this.OvenTemperature              = 1000;  % Temperature in Celsius
    this.MOTDistance                  = 0.32; % Distance between the 2-D MOT the 3-D MOT  
    this.BlueWaveNumber               = 2*pi/pc.BlueWavelength;
    this.BlueSaturationIntensity      = 0.1 * (2 * pi^2 / 3) * ((pc.PlanckConstantReduced * pc.SpeedOfLight * pc.BlueLinewidth) / (pc.BlueWavelength)^3);
    this.OrangeWaveNumber             = 2*pi/pc.OrangeWavelength;
    this.OrangeSaturationIntensity    = 0.1 * (2 * pi^2 / 3) * ((pc.PlanckConstantReduced * pc.SpeedOfLight * pc.OrangeLinewidth) / (pc.OrangeWavelength)^3);
    this.BlueBeamRadius               = min(0.035/2,sqrt(2)/2*this.OvenDistance); % Diameter of CF40 flange = 0.035
    Theta_Nozzle                      = atan((this.NozzleRadius+this.BlueBeamRadius*sqrt(2))/this.OvenDistance); % The angle of capture region towards the oven nozzle
    Theta_Aperture                    = 15/360*2*pi; % The limitation angle of the second aperture in the oven
    this.NozzleExitDivergence         = min(Theta_Nozzle,Theta_Aperture); 
    this.MOTExitDivergence            = 16e-3; % The limitation angle between 2D-MOT and 3D-MOT
    this.TimeSpentInInteractionRegion = this.SimulationTime;
    this.TotalPower                   = 0.8;
    this.OrangeBeamRadius             = 1.2e-3;
    this.PushBeamRadius               = 1.2e-3;
    this.PushBeamDistance             = 0.32;
    this.PushBeamLinewidth            = Helper.PhysicsConstants.OrangeLinewidth;
    this.PushBeamWaveNumber           = this.OrangeWaveNumber;
    this.PushBeamSaturationIntensity  = this.OrangeSaturationIntensity;
    this.ZeemanSlowerBeamRadius       = 0.035;
    this.ZeemanSlowerBeamSaturationIntensity   = this.BlueSaturationIntensity;
    this.DistanceBetweenPushBeamAnd3DMOTCenter = 0;
end