From 04b395b6ad64a0b42c25fc765bff0b0d03b19ea6 Mon Sep 17 00:00:00 2001 From: Karthik Chandrashekara Date: Sun, 11 Jul 2021 06:28:50 +0200 Subject: [PATCH] Removed the multiplication of the full Clausing Factor since the correct flux coming out of the oven is obtained by accounting for the clipping by the aperture which is done by numerically integrating the angular distribution till the exit divergence angle that is limited by the aperture to obtain what is called the "reduced" Clausing Factor. This is calculated in the initialVelocitySampling and multiplied to this flux to get the "reduced" flux. --- .../@MOTSimulator/calculateFreeMolecularRegimeFlux.m | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/MOT Capture Process Simulation/@MOTSimulator/calculateFreeMolecularRegimeFlux.m b/MOT Capture Process Simulation/@MOTSimulator/calculateFreeMolecularRegimeFlux.m index 5307c3a..504a1aa 100644 --- a/MOT Capture Process Simulation/@MOTSimulator/calculateFreeMolecularRegimeFlux.m +++ b/MOT Capture Process Simulation/@MOTSimulator/calculateFreeMolecularRegimeFlux.m @@ -3,6 +3,8 @@ function ret = calculateFreeMolecularRegimeFlux(this) %See Expected atomic flux section in Barbiero Dy164VapourPressure = 133.322*exp(11.4103-2.3785e+04./(-219.4821+this.OvenTemperatureinKelvin)).*100; % Vapor Pressure Dysprosium for the given oven temperature Dy164DensityinOven = Dy164VapourPressure/(Helper.PhysicsConstants.BoltzmannConstant*this.OvenTemperatureinKelvin); - ClausingFactorApproximation = (8 * this.NozzleRadius) / (3 * this.NozzleLength); - ret = Helper.PhysicsConstants.Dy164IsotopicAbundance * 1/4 * Dy164DensityinOven * this.AverageVelocity * ClausingFactorApproximation * pi * this.NozzleRadius.^2; -end \ No newline at end of file + ret = Helper.PhysicsConstants.Dy164IsotopicAbundance * 1/4 * Dy164DensityinOven * this.AverageVelocity * pi * this.NozzleRadius.^2; + % Needs to be multiplied with the "Clausing Factor" which here would be + % the probability not for the full solid angle but the angle subtended + % by the aperture of the oven at its mouth. +end \ No newline at end of file