Gun Test Stand Meeting Minutes and To-Do Lists
Jump to navigation
Jump to search
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.
Gun Test Stand Meetings
2019
- GTS meeting 7_01_19 T-Gun will arrive at JLab on Monday July 8th
- GTS meeting 6_24_19 T-Gun will arrive at JLab on Monday July 1st
- GTS meeting 6_17_19 Disconnect P-Gun and Install T-Gun
- GTS meeting 6_10_19 NAPAC 2019
- GTS meeting 5_13_19 IPAC 2019
- GTS meeting 5_06_19 Disconnect P-Gun and Install T-Gun
- GTS meeting 4_22_19 Disconnect P-Gun and Install T-Gun
- GTS meeting 4_15_19 Commissioning T-Gun Beamline
- GTS meeting 4_08_19 Commissioning T-Gun Beamline and TE011 cavity
- GTS meeting 3_25_19 Commissioning T-Gun Beamline
- GTS meeting 3_18_19 Commissioning T-Gun Beamline
- GTS meeting 3_11_19 Commissioning T-Gun Beamline
- GTS meeting 3_04_19 Commissioning T-Gun Beamline
- GTS meeting 2_25_19 Commissioning T-Gun Beamline
- GTS meeting 2_18_19 Plan of Commissioning T-Gun Beamline
- GTS meeting 2_11_19 Completed Beamline for T-Gun, T-Gun Beamline and New Ion Precipitator Drawings
- GTS meeting 2_04_19 Beamline and Controls Modifications
- GTS meeting 1_28_19 Beamline and Controls Modifications, T-Gun Beamline Drawings
- GTS meeting 1_14_19 Beamline and Controls Modifications
- GTS meeting 1_07_19 Beamline and Controls Modifications
2018
- GTS meeting 12_10_18 Krypton Processing to 300 kV, Ion beam calculations
- GTS meeting 12_03_18 Krypton Processing to 300 kV, Space Charge Effect in Magnetized Beam
- GTS meeting 11_19_18 GPT simulation of Space Charge effects in Magnetized Beam
- GTS meeting 11_12_18 Ghost beam studies
- GTS meeting 11_05_18 Ghost beam plans
- GTS meeting 10_22_18 Summary of pulse energy vs bunch charge
- GTS meeting 10_15_18 Summary of pulse energy vs bunch charge for 200 kV, 150 kV and 100 kV
- GTS meeting 10_08_18 Space charge limit vs magnetization and laser pulse length, Bunch charge vs Frequency, Ion simulations discussion with Crhistian Valerio
- GTS meeting 10_01_18 High bunch charge, Ions simulation by Cristhian Valerio
- GTS meeting 9_24_18 28 mA run (100 kV, 150 Amps), GPT Space Charge Limit
- GTS meeting 9_17_18 RadCon approved Currents: 100 kV @ 26 mA; 200 kV @ 15 mA; or 300 kV @ 4.5 mA
- GTS meeting 9_10_18 16 mA Magnetized beam run, High currents plan, P3 Workshop abstracts
- GTS meeting 8_27_18 New Spellman HV power supply
- GTS meeting 8_20_18 Emittance vs Gun Solenoid, Magnetized lifetime measurement at 4.5 A (37 hours), ion-induced secondary electron beam, t-gun beam movie
- GTS meeting 8_13_18 P3 Workshop
- GTS meeting 8_06_18 Emittance vs Gun Solenoid, Magnetized Beam 2D and 3D Schematics
- GTS meeting 7_30_18 More lifetime measurements, Emittance check with Gun Solenoid off
- GTS meeting 7_23_18 Summary of lifetime measurements
- GTS meeting 7_16_18 High current runs, GPT simulations of Beam Size vs Solenoid Current for 200 kV
- GTS meeting 7_11_18 Photocathodes Sb deposition time studies, High current runs
- GTS meeting 7_02_18 Photocathodes Sb deposition time studies, GPT simulations of normalized emittance vs z
- GTS meeting 6_25_18 Photocathodes Sb deposition time studies, GPT simulations of normalized emittance vs z
- GTS meeting 6_18_18 GTS updated plan, Photocathodes activation with different Sb deposition time, CST microwave studio simulations of 300 kV GTS gun
- GTS meeting 6_11_18 Beam emittance vs magnetic field at photocathode (Laser rms = 0.32 mm)
- GTS meeting 6_04_18 Beam size for different Pierce angle 1D field maps, Space Charge Simulation
- GTS meeting 5_21_18 More HV conditioning, Photocathode surface and chemical analysis, Space Charge Simulation
- GTS meeting 5_07_18 HV conditioning completed, Photocathode activation (moly substrate, 5 mm), New beamline Drawing
- GTS meeting 4_30_18 IPAC'18 Final Proceedings
- GTS meeting 4_23_18 IPAC'18 Posters + Proceedings
- GTS meeting 4_16_18 IPAC'18 Posters
- GTS meeting 4_09_18 IPAC'18 Contributions, Replace bad ceramic
- GTS meeting 4_02_18 New ceramic, puck with molybdenum substrate, Gun bake, GTS Emittance Simulation
- GTS meeting 3_19_18 Gun ceramic failure
- GTS meeting 3_12_18 Emittance around damaged spots on photocathode
- GTS meeting 3_05_18 ASTRA Beam size sensitivities
- GTS meeting 2_26_18 Emittance Simulations vs spot location on photocathode
- GTS meeting 2_19_18 Emittance vs spot location on photocathode, Emittance near damaged spot
- GTS meeting 2_12_18 Emittance vs beam current, Emittance vs spot location on photocathode
- GTS meeting 2_05_18 Emittance vs laser spot size, Beam size vs z for different Solenoid I, New beamline Drawing and 3D Views
- GTS meeting 1_29_18 Harp and Viewer emittance measurements (5-300 kV), Laser profile
- GTS meeting 1_22_18 Emittance measurements at Viewer 3, Harp scans
- GTS meeting 1_08_18 ASTRA simulation, Harp commissioning
2017
- GTS meeting 12_18_17 Final IPAC18 Abstracts, Harp commissioning
- GTS meeting 12_11_17 IPAC18 Abstracts Poelker's edits, Harp commissioning, New beamline Drawing,
- GTS meeting 12_04_17 IPAC18 Abstracts, Harp commissioning
- GTS meeting 11_27_17 Fiber laser sizes, beam commissioning plan, GPT modelling
- GTS meeting 11_20_17 Gain switched diode laser update, beam commissioning plan
- GTS meeting 11_13_17 Gain switched diode laser update, beam commissioning plan
- GTS meeting 11_06_17 Shutdown activities, gain switched diode laser update, beam commissioning plan
- GTS meeting 10_30_17 Shutdown activities, gain switched diode laser
- GTS meeting 10_23_17 Shutdown activities
- GTS meeting 10_16_17 Shutdown started today
- GTS meeting 10_09_17 Remaining tasks before shutdown
- GTS meeting 10_02_17 High current runs, laser heating, Jay's GTS Magnetic field model, remaining tasks before shutdown
- GTS meeting 9_25_17 High current runs - 3 mA
- GTS meeting 9_18_17 New activation, differential orbits, new shutdown start date
- GTS meeting 9_11_17 High current runs, differential orbits, shutdown plans
- GTS meeting 8_28_17 Emittance measurements, shutdown plans
- GTS meeting 8_21_17 Emittance measurements
- GTS meeting 8_14_17 ASTRA simulation and emittance measurements, YAG facts.
- GTS meeting 8_07_17 ASTRA simulation and emittance measurements
- GTS meeting 7_31_17 ASTRA simulation and emittance measurements
- GTS meeting 7_24_17 ASTRA simulation and emittance measurements
- GTS meeting 7_17_17 Updates on magnetized beam sizes, ASTRA simulation and slit emittance measurement.
- GTS meeting 7_10_17 Updates on magnetized beam sizes, ASTRA simulation and slit emittance measurement.
- GTS meeting 7_03_17 Updates on magnetized beam sizes and rotation angles, ASTRA simulation and slit emittance measurement.
- GTS meeting 6_26_17 Updates on magnetized beam sizes and rotation angles, ASTRA simulation and slit emittance measurement.
- GTS meeting 6_19_17 Updates on magnetized beam sizes and rotation angles, ASTRA simulation and slit emittance measurement. Yan's UGM poster.
- GTS meeting 6_15_17 Updated to-do list, discuss our simulation wish list
- GTS meeting 6_12_17 Updates on magnetized beam sizes and rotation angles, emittance measurements, ASTRA simulation and slit emittance measurement
- GTS meeting 6_05_17 JLab Annual Users' Group Meeting: Yan's Abstract and Poster Outline
- GTS meeting 5_22_17 0.5 mA magnetized beam
- GTS meeting 5_15_17 Instrumenting the Wire Scanner
- GTS meeting 5_09_17 Meeting in LERF Break Room - Software Tasks
- GTS meeting 5_02_17 Meeting in LERF Break Room - Attempting to deliver 1 mA - Cornell, Pozdeyev and Grames papers on ions, links to GTSLOG
- GTS meeting 4_25_17 Meeting in LERF Break Room - Upgraded the laser system. Latest Drawings and 3D Views
- GTS meeting 4_18_17 Meeting in LERF Break Room - Running beam to the dump
- GTS meeting 4_11_17 Meeting in LERF Break Room - Finished bake of second part of beamline
- GTS meeting 4_04_17 No Meeting - Open to finish second part of beamline - Summary of tasks for the down
- GTS meeting 3_28_17 Meeting in LERF Break Room - Attempting to center gun solenoid - Emittance vs Gun HV
- GTS meeting 3_21_17 Meeting in LERF Break Room - Attempting to center gun solenoid
- GTS meeting 3_14_17 Meeting in GTS Control Room - Delivering magnetized beam. DO NOT TURN MAGNET ON WHILE GUN AT HV
- GTS meeting 3_07_17 Meeting in GTS Control Room - GTS beam in ON
- GTS meeting 2_28_17 Remaining Tasks - Very close to run beam
- GTS meeting 2_21_17 Beamline and Prep Chamber successfully baked
- GTS meeting 2_14_17 HV and Magnet conditioning seems to be OK for beam. Updates on cathode prep chamber and beam line. POISSON simulations comparing the T-electrode to the spherical electrode inside CEBAF style gun vacuum chamber
- GTS meeting 2_07_17 HV and Magnet conditioning. Updates on cathode prep chamber and beam line
- GTS meeting 1_17_17 Gun with Magnetized beam coil turned ON!!! Updates on cathode prep chamber and beam line
- GTS meeting 1_3_17 Emittance measurement techniques
2016
- GTS meeting 12_20_16 Gun conditioned to 350kV in vacuum, up to 365kV w/Kr, new scheme for puck grabbing in prep chamber, etc.
- GTS meeting 12_06_16 High voltage conditioning with barrel polished electrodes, beam line, cathode solenoid magnet, etc...
- GTS meeting 11_15_16 Laser power, gun bake update, beam line update
- GTS meeting 11_08_16 Beamline update
- GTS meeting 10_31_16 Gun HV chamber under vacuum, Improved Cathode prep chamber with Mamun's puck holder design is under vacuum!
- GTS meeting 10_24_16 Gun HV chamber assembled, Cathode prep updates, beam line, P3 Workshop
- GTS meeting 10_11_16 Updates: SS ball electrode assembly, gun chamber, prep chamber, beam line
- GTS meeting 10_04_16 Updates on gun chamber, cathode prep and beam line.
- GTS meeting 9_14_16 Shutdown work progress and discussion about photocathode 'arcing' during 1 mA beam runs, including Carlos' ERL'09 talk with FEL gun high current run observations.
- GTS meeting 9_13_16 Shutdown work progress and really cool pictures of the removed multi-alkali photocathodes.
- GTS meeting 8_30_16 Shutdown started!
- GTS meeting 8_23_16 The way forward plan
- GTS meeting 8_9_16 Discuss the new magnetized beamline
- GTS meeting 7_25_16 Update since our last meeting, 1 mA for >6 hours!..battered cathode holds QE!!..QE scanner operational!!!...FE induced by hand-held magnet!!!!
- GTS meeting 7_05_16 Better stability at 1 mA and 300kV with biased anode. Summary, what have we learned so far?
- GTS meeting 6_27_16 100uA 300keV beam for 5 hr, but 1 mA attempts difficult. Summary of multi-alkali LN-cooled cathode work.
- GTS meeting 6_20_16 Demonstrated 1 mA Beam at 275 keV!!!!
- GTS meeting 6_14_16 Progress!!! Full control of laser power & first CsKSb cathode in TL1137 for the summer!
- GTS meeting 5_31_16 1.6 uA 300keV DC beam on the dump!
- GTS meeting 5_24_16 Struggling to keep the beam On. Some progress in diagnostics.
- GTS meeting 5_17_16 The BEAM in ON!!!
- GTS meeting 5_3_16 Getting ready for beam update, New puck drawings
- GTS meeting 4_26_16 First multi-alkali photocathode in the GTS!
- GTS meeting 4_12_16 Beamline, HV, Depo chamber, Barrel polishing surface characterization, and SCHEDULE
- GTS meeting 4_5_16 Updates, and some HV.
- GTS meeting 3_22_16 Updates.
- GTS meeting 3_15_16 Beamline bake is done, and gun+per chamber bake is cooling down.
- GTS meeting 3_8_16 Update on beamline instrumentation and bake
- GTS meeting 3_2_16 Coil Procurement
- GTS meeting 3_1_16 Gun magnet drawings and update on barrel polishing (Sheds) and cathode prep chamber.
- GTS meeting 2_22_16 3D EM modeling of the GTS gun chamber with R30 insulator and electrode, update on prep chamber
- GTS meeting 2_19_16 Discuss design tasks for Magnetized Beam LDRD
- GTS meeting 2_16_16 Beamline magnets and diagnostics itemized list and LDRD gun magnet update
- GTS meeting 2_9_16 Beamline and LDRD gun magnet updates
- GTS meeting 2_2_16 LDRD gun magnet discussion & Shed for R30 black insulators
- GTS Beamline 2_1_16 Beam line side view gun to dump with pics
- GTS photos 1_29_16 Assembly of beam line and gun for LDRD
- GTS meeting 1_26_16 Shed design and Beamline update
- GTS meeting 1_19_16 Update: Yan's modeling with NEGs, Beamline update
- GTS meeting 1_15_16 Meeting with Vashek Vylet about radiation shielding
- GTS meeting 1_12_16 Update: Yan's optimized R30-shed, multi-alkali chamber work, GTS schedule drafting
- GTS meeting 1_5_16 LDRD gun magnet design
2015
- GTS meeting 12_15_15 optimized shed for today's gun plan Y
- GTS meeting 12_8_15 status and to-do list
- GTS meeting 12_1_15 status and to-do list
- GTS meeting 11_13_15 present status of Plan Z (using the large FEL black insulators)
- GTS meeting 11_10_15 SYSTEM R30 white + Shed & full electrode ready for High Voltage!!!.
- GTS meeting 11_03_15 SYSTEM IS UNDER VACUUM!!!.
- GTS meeting 10_27_15 Sheep chamber saga, electrode assembly update.
- GTS meeting 10_20_15 Update on sheep chamber vacuum setup, electrodes and RadCon.
- GTS meeting 10_06_15 Update on sheep chamber vacuum setup and electrode polishing.
- GTS meeting 9_25_15 Update from Yan on fields from John's Shed, update on sheep chamber vacuum setup and electrode polishing.
- GTS meeting 9_15_15 Met at the GTS with Danny and Josh, Sheep chamber attached to gun valve.
- GTS meeting 9_8_15 350 kV vs 500 kV guns, Yan poisson field maps
- GTS meeting 9_1_15 More discussion, optimized sheds and plan y and z
- GTS meeting 8_25-15 More discussion re: shed optimization for gun Plan Z
- GTS meeting 8_18_15 Global GTS talking points, the big picture, VA beamline etc., to do list
- GTS meeting 8_11_15 More poisson results, discuss revisiting the white R30 insulator + shed test
- GTS meeting 8_4_15 Yan's poisson results, Danny's latest drawing, electrode inventory, insulator inventory
- GTS meeting 7_14_15 discuss gun Plan Z
- GTS meeting 7_7_15 kick off and to-do list, review Carlos' HV results
To-Do Lists
- GTS Improvement List - Summer / Fall 2016 Plans to improve on GTS when installing magnetized beam cathode magnet