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| AWAKE Simulations | | AWAKE Simulations |
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| == Poster Simulation 09-09-22 ==
| | Run summaries of Particle-in-Cell Simulations for PDPWA. |
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| Simulation of short driver bunches. Beams are defined directly within the configuration and beamfiles run through lem.py for diagnostics.
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| (LCODE configuration takes m/q, but resulting beamfiles are in q/m).
| | == LCODE == |
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| === [[/FernPannell|Fern Pannell]] === | | === [[/STFC Summer School 2022 Poster|September 2022: STFC Summer School 2022 Poster]] === |
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| | === [[/DriverStudy|Electron-Positron Driver Comparison]] === |
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| {| class="wikitable"
| | == WarpX == |
| !Run Number
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| !Base Configuration
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| !Window Width
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| !Window Length
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| ! q/m
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| !Total Weight (pC)
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| !LCODE ampl
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| !LCODE Beam Current
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| !LCODE Beam Length
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| !Beam Length (um)
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| !Energy (approx) (GeV)
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| !Comments
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| |1 || short_bunch - DAC || 3 || 10 || 1.0 || -2045.504558 || 1 || -3.6 || 0.1 || 3.63 || 30 || Default DAC short_bunch.cfg
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| |2 || short_bunch - DAC || 3 || 10 || 0.00054 || -2045.504558 || 1 || -3.6 || 0.1 || 3.64 || 30 || Only change made to cfg m/q for protons. Ez plots for 1 and 2 are identical.
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| |3 || short_bunch - DAC || 3 || 20 || 1.0 || -2045.504558 || 1 || -3.6 || 0.1 || 3.64 || 30 || Plot x-range increases with window length increase.
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| |4 || short_bunch - DAC || 3 || 100 || 1.0 || -2045.504558 || 1 || -3.6 || 0.1 || 3.63 || 30 || Expecting Ez fall off with distance. Do observe this.
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| |5 || short_bunch - DAC || 3 || 100 || 0.00054 || -2045.504558 || 1 || -3.6|| 0.1 || 3.64 || 30 || Checking to see if Ez attenuation with distance is different for q/m=1/1836 (proton ). Identical plots.
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| |6 || short_bunch - DAC || 3 || 20 || 0.00054 || -2045.504558 || -1 || -3.6 || 0.1 || 3.64 || 30 || Can compare this with run 3 as mass not impacting currently. Identical despite ampl=-1 meaning should be opposite charge. Will set this directly in m/q next.
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| |7 || short_bunch - DAC || 3 || 20 || 1.0 || -2045.504558 || 1 || -3.6 || 0.1 || 3.63 ||30 || Despite setting m/q=1 in cfg, lem still shows positive and so results identical to run 3.
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| |8 || short_bunch - DAC || 3 || 20 || 1.0 || -2045.504558 || -1 || -3.6 || 0.1 || 3.63 ||30 || Keeping m/q as negative and making ampl=-1. Still no change. It seems (from previous knowledge) only changing the sign of the beam current in cfg makes a difference to m/q sign.
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| |9 || short_bunch - DAC || 3 || 20 || 1.0 || 2045.504558 || 1 || +3.6 || 0.1 || 3.63 ||30 || Return to run 3 parameters but set current to positive. Saying q/m is +1 still, but total weight is now positive, suggesting previous runs have been negative species and this is positive.
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