Wiki Logbook

5/24/18 -- Completed Wiki page and uploaded some files, Reading Ion Bombardment of Solids

5/25/18 -- Reading Ion Bombardment of Solids, completed sections 2.2-2.3

5/30/18 -- Reading Ion Bombardment of Solids, completed sections 2.4-2.6.2

6/1/18 -- Discussed ionization cross-sections, uploaded derivation of QE formula

6/7/18 -- Read articles on ionization cross sections and RGA, installed Ubuntu (finally!)

6/11/18 -- Uploaded analyzed RGA spectrum (After 2 days)

6/14/18 -- Uploaded Ionization Cross Sections

6/18/18 -- Updated Ionization Cross Sections to include section on ionization rates

6/22/18 -- Updated Ionization Cross Sections to include tables of calculated values for the ionization rates from normalized partial pressures

6/25/18 -- Uploaded Ion Production Rate vs Beam Energy

6/27/18 -- Uploaded Voltage vs. Distance Graphs

7/9/18 -- Uploaded List of References

7/13/18 -- Analyzed charge lifetime data taken at CEBAF

7/23/18 -- Learned GPT & C++, Calculating ion production rates, Solving problems

8/6/18 -- Still waiting on PC with GPT, continuing work in last log entry

8/8/18 -- Still waiting on PC with GPT, continuing work in last log entry

8/15/18 -- Finally have PC with GPT, continuing work in last log entry

8/22/18 -- Finally have PC with GPT, continuing work in last log entry

8/27/18 -- Uploaded log-log plot of IPR vs beam energy, continuing to read Alex Chao's Fast Ion Instability

9/6/18 -- Creating GPT simulation, writing up procedure/preliminary calculations for BPM measurement, using SCAM to introduce clearing gaps

9/14/18 -- Creating GPT simulation, writing up procedure/preliminary calculations for BPM measurement

10/1/18 -- Uploaded Magnetic Mirror derivation and BPM measurements/analysis. Creating GPT simulation of ion trap, optimizing anode and mag. solenoid.

10/9/18 -- Created series of GPT simulations of ion traps, measured beam pipe diameter, derived net force on ion

10/17/18 -- Continuing GPT simulations of ion traps...to no avail. Sooooooo….BPM measurements?

11/1/18 -- Beam measurements next week: Analyzing ionization emission (light) spectra, using a BPM to analyze ion frequencies (modulation), creating/playing with the "ghost" beam, etc.

11/11/18 -- Completed initial ghost beam testing. Will continue analysis this week using spectrometer to measure light due to ionization and a BPM to measure characteristic ion oscillation frequencies (modulations) within the electron beam.

12/4/18 -- Analyzing Ghost Beam Studies data, able to create electron/proton trap in GPT

1/9/19 -- Creating rigorous ionization theory of the ghost beam

1/18/19 -- Created documentation on how to use the JLab Farm, preliminary ideas for measuring ghost light between the anode and magnetizing solenoid for when the T-Gun is installed

2/18/19 -- Working on Oral Qualifier Paper/Presentation (on 2/27), narrowing in on thesis project, working on ionization simulation using GPT/IBSimu with Cristian and Ricardo

2/26/19 -- Oral Qualifier Presentation tomorrow, paper uploaded. Will work on Bas' ionization routine to simulate ion production for a real beam at GTS (not just a cylindrical beam).

3/9/19 -- Created Ghost Beam Studies page on wiki. Working on adding all available info and theory pertaining to the ghost beam.

3/13/19 -- Attempted (and failed) to characterize trapped ions between the anode and gun solenoid

4/23/19 -- Update on Ghost Beam Studies, designing steel shield that will surround the perpendicular viewport, waiting for Bas...and the T-gun

5/20/19 -- Update on steel shield, CST, GPT, and anode tests at CEBAF

6/14/19 -- Starting CEBAF Measurements, Working on Ionization Code, Using CST for Fieldmaps, Writing Abstract for PSTP 2019

11/15/19 -- Update on everything done since 6/14/19 (has it really been over 3 months?!?!)

4/7/20 -- Update on everything done since 11/15/19 (Actually it's been almost 6 months o.O)

5/4/20 -- May Update on everything done since 4/7/2020

9/8/21 -- Writing, writing, writing: Thesis, papers (biased anode, GPT, spotsize), custom element documentation, etc.

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