Difference between revisions of "Gabriel Palacios-Serrano"

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*[[Media:Gabriel's thesis outline draft Feb 2019 Rev00.docx]]
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== Wien filter stuff: ==
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Spline electrode GPT simulations
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* [[Media:Wien_filter_GPT_7_Spline_electrode.pptx ]]
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Asymmetric bias GPT simulations
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* [[Media:Wien_filter_GPT_6.pptx ]]
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Inter-plate gap GPT simulations
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* [[Media:Wien_filter_GPT_5.pptx ]]
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Optics of the Wien filter, final
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* [[Media:Wien_filter_GPT_4_FINAL.pptx ]]
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Optics of the Wien filter, first try
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* [[Media:Wien_filter_GPT_3.pptx ]]
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Bolts and washers (metal and alumina sims).
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* [[Media:Wien_filter_bolts_and_washers.pptx ]]
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Exploring the reduction on the inter-plate gap.
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* [[Media:Wien_filter_shorter_plate_gaps.pptx ]]
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Double thickness mounting tab sims.
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* [[Media:Wien_filter_mounting_tab.pptx ]]
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Wien filter 6: What do we need for the 200 kV Wien filter using the UITF one as a base?
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* [[Media:Wien_filter_6.pptx ]]
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Wien filter 4: What do we need for the 200 kV Wien filter using the UITF one as a base?
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* [[Media:Wien_filter_4.pptx ]]
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Wien filter 3: I measured the vacuum lab's Wien filter and checked what we can scavenge for the 40 kV feedthrough version.
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* [[Media:Wien_filter_3.pptx ]]
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Wien filter 2: Simulation results for the 40 kV feedthrough for Wien filter at UITF.
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* [[Media:Wien_filter_2.pptx ]]
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Wien filter 1: Simulation results for the existing (05/22/2019) Wien filter at UITF.
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* [[Media:Wien_filter_1.pptx ]]
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------------------------------------------------------------
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== Gun related ==
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'''Solidworks sumary'''
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* [[Media:GTS_gun_model_sumary.pdf]]
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* [[Media:T-cathode_gun_model_sumary.pdf]]
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'''Data taking runs'''
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UITF T-cathode electrode vs Small Shield: BPM data and centering in first lens at 200 [kV]
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* Rev5 [[Media:UITF_T-cathode_electrode_BPM_data_200_kV-8.pptx]]
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* Rev4 [[Media:UITF_T-cathode_electrode_BPM_data_200_kV-7.pptx]]
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* Rev3 [[Media:UITF_T-cathode_electrode_BPM_data_200_kV-6.pptx]]
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* Rev2 [[Media:UITF_T-cathode_electrode_BPM_data_200_kV-5.pptx]]
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* [[Media:UITF_T-cathode_electrode_BPM_data_200_kV-4.pptx]]
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* [[Media:UITF_T-cathode_electrode_BPM_data_200_kV-3.pptx]]
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* [[Media:UITF_T-cathode_electrode_BPM_data_200_kV.pptx]]
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Log entry related to how the Laser XY stage moves along the X-axis
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* https://logbooks.jlab.org/entry/3704517
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Images of on axis QE run p2_2019-06-04_15_39 to calculate STEP-mm conversion factor
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* [[Media:QE scan fixed X 10000.png]]
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* [[Media:QE scan fixed Y 10000.png]]
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Ey difference for T-cathode and Small shield (From CST field maps)
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* [[Media:Ey difference for T-cathode and Small shield.PNG]]
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'''GPT, CST, COMSOL '''
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CST particle tracking of T-cathode, Small Shield and Big Shield @-200 kV
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* [[Media:Cathodes_particle_tracking_CST_1.pptx]]
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CORRECTION: CST and GPT info for the T-shape, mushroom, small mushroom, sphere small anode 6cm gap, sphere long anode 6cm gap, sphere long anode 9cm gap at -200 kV. This file has the CEBAF parameters.
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* [[Media:Guns_CST_1_CORRECTED.pptx]]
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GPT results  for the sphere long anode 9cm gap at -300 kV. This was produced using Yan's GTS parameters. Impact of GBacc on emittance.
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* [[Media:GTS_GPT_3.pptx]]
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GPT results  for the sphere long anode 9cm gap at -300 kV. This was produced using Yan's GTS parameters. Impact of field map interpolation step-size on emittance.
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* [[Media:GTS_GPT_2.pptx]]
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GPT results  for the sphere long anode 9cm gap at -200 kV. This was produced using Yan's GTS parameters. We are trying to find out why is the measurements and simulated emittance so different.
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* [[Media:GTS_GPT_1.pptx]]
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THIS FILE HAS BEEN CORRECTED: CST and GPT info for the T-shape, mushroom, small mushroom, sphere small anode 6cm gap, sphere long anode 6cm gap, sphere long anode 9cm gap at -200 kV. This file has the CEBAF parameters.
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* [[Media:Guns_CST_1.pptx]]
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Preliminary GPT results for the T-cathode vs Mushroom vs Sphere at -200 kV. This file has the CEBAF parameters. This is the same as the previous entry but shows extra slides with comparisons of the three cathodes wth one metric as requested by Matt.
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* [[Media:New_CEBAF_gun_CST_4_2.pptx]]
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Preliminary GPT results for the T-cathode vs Mushroom vs Sphere at -200 kV. This file has the CEBAF parameters.
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* [[Media:New_CEBAF_gun_CST_4.pptx]]
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Preliminary GPT results for the T-cathode vs Mushroom vs Sphere at -200 kV.
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* [[Media:New_CEBAF_gun_CST_3.pptx]]
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Test shields 1 to 7 simulations on CST for the -200 kV new CEBAF gun (and includes a bit of the GTS gun field maps at 200 kV w/small anode).
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* [[Media:New_CEBAF_gun_CST_2.pptx]]
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Test shields 1,2,3 & 4 simulations on CST for the -200 kV new CEBAF gun.
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* [[Media:New_CEBAF_gun_CST_1.pdf]] [[Media:New_CEBAF_gun_CST_1.pptx]]
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* [[Media:New_CEBAF_gun_CST_1_w-noshield.pdf]] [[Media:New_CEBAF_gun_CST_1_w-noshield.pptx]]
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Field maps for the -200 kV new CEBAF gun @-130 kV and -180 kV.
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* [[Media:Field_maps_for_the_new_CEBAF_gun_at_130_kV_and_180_kV.pdf]]
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Results for CST microwave studio simulations of the -300 kV GTS gun.
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* [[Media:GTS_CST_1.pdf]]
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Corrections on the simulation results for the -200 kV CEBAF gun paper.  
 
Corrections on the simulation results for the -200 kV CEBAF gun paper.  
−
[[Media:COMSOL_corrected.pdf]]
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* [[Media:COMSOL_corrected.pdf]]
  
 
Document with details on the Pierce geometry angle variations for the -300 kV GTS gun.  
 
Document with details on the Pierce geometry angle variations for the -300 kV GTS gun.  
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[[Media:GTS COMSOL 8.pdf]]
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* [[Media:GTS COMSOL 8.pdf]]
  
 
COMSOL simulations for 300kV and 200kV guns upper shields
 
COMSOL simulations for 300kV and 200kV guns upper shields
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[[Media:300kV_COMSOL_upper_shields.pdf]]
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* [[Media:300kV_COMSOL_upper_shields.pdf]]
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[[Media:200kV_COMSOL_upper_shield.pdf]]
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* [[Media:200kV_COMSOL_upper_shield.pdf]]
  
 
COMSOL modeling comparing CEBAF 130kV white insulator no shed versus Upgrade 200kV black insulator with shed.
 
COMSOL modeling comparing CEBAF 130kV white insulator no shed versus Upgrade 200kV black insulator with shed.
 
(Both guns biased at -200kV)
 
(Both guns biased at -200kV)
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[[Media:COMSOL comparison CEBAF 130kV to 200kV upgrade.pdf]]
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* [[Media:COMSOL comparison CEBAF 130kV to 200kV upgrade.pdf]]
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[[Media:COMSOL ceramic conductivity.pdf]]
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* [[Media:COMSOL ceramic conductivity.pdf]]

Revision as of 13:40, 16 September 2020

Wien filter stuff:

Spline electrode GPT simulations

Asymmetric bias GPT simulations

Inter-plate gap GPT simulations

Optics of the Wien filter, final

Optics of the Wien filter, first try

Bolts and washers (metal and alumina sims).

Exploring the reduction on the inter-plate gap.

Double thickness mounting tab sims.

Wien filter 6: What do we need for the 200 kV Wien filter using the UITF one as a base?

Wien filter 4: What do we need for the 200 kV Wien filter using the UITF one as a base?

Wien filter 3: I measured the vacuum lab's Wien filter and checked what we can scavenge for the 40 kV feedthrough version.

Wien filter 2: Simulation results for the 40 kV feedthrough for Wien filter at UITF.

Wien filter 1: Simulation results for the existing (05/22/2019) Wien filter at UITF.

Gun related

Solidworks sumary


Data taking runs

UITF T-cathode electrode vs Small Shield: BPM data and centering in first lens at 200 [kV]

Log entry related to how the Laser XY stage moves along the X-axis

Images of on axis QE run p2_2019-06-04_15_39 to calculate STEP-mm conversion factor

Ey difference for T-cathode and Small shield (From CST field maps)


GPT, CST, COMSOL

CST particle tracking of T-cathode, Small Shield and Big Shield @-200 kV

CORRECTION: CST and GPT info for the T-shape, mushroom, small mushroom, sphere small anode 6cm gap, sphere long anode 6cm gap, sphere long anode 9cm gap at -200 kV. This file has the CEBAF parameters.

GPT results for the sphere long anode 9cm gap at -300 kV. This was produced using Yan's GTS parameters. Impact of GBacc on emittance.

GPT results for the sphere long anode 9cm gap at -300 kV. This was produced using Yan's GTS parameters. Impact of field map interpolation step-size on emittance.

GPT results for the sphere long anode 9cm gap at -200 kV. This was produced using Yan's GTS parameters. We are trying to find out why is the measurements and simulated emittance so different.

THIS FILE HAS BEEN CORRECTED: CST and GPT info for the T-shape, mushroom, small mushroom, sphere small anode 6cm gap, sphere long anode 6cm gap, sphere long anode 9cm gap at -200 kV. This file has the CEBAF parameters.

Preliminary GPT results for the T-cathode vs Mushroom vs Sphere at -200 kV. This file has the CEBAF parameters. This is the same as the previous entry but shows extra slides with comparisons of the three cathodes wth one metric as requested by Matt.

Preliminary GPT results for the T-cathode vs Mushroom vs Sphere at -200 kV. This file has the CEBAF parameters.

Preliminary GPT results for the T-cathode vs Mushroom vs Sphere at -200 kV.

Test shields 1 to 7 simulations on CST for the -200 kV new CEBAF gun (and includes a bit of the GTS gun field maps at 200 kV w/small anode).

Test shields 1,2,3 & 4 simulations on CST for the -200 kV new CEBAF gun.

Field maps for the -200 kV new CEBAF gun @-130 kV and -180 kV.

Results for CST microwave studio simulations of the -300 kV GTS gun.

Corrections on the simulation results for the -200 kV CEBAF gun paper.

Document with details on the Pierce geometry angle variations for the -300 kV GTS gun.

COMSOL simulations for 300kV and 200kV guns upper shields

COMSOL modeling comparing CEBAF 130kV white insulator no shed versus Upgrade 200kV black insulator with shed. (Both guns biased at -200kV)

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