Hysteresis Compensation

Summer planning 2025

3 min read

Tasks ahead

  • Dipole eddy current + full cycle
  • Quadrupole hysteresis

Week 2025-06-24

  • MPC slides
  • Thesis layout
  • Eddy current

1st week MD

  • MD prep
  • Make predictions modular (hysteresis / eddy current or hysteresis or eddy current)

2nd week July MD

  • Include quad or not? Decide
  • Finish MD prep (9th July)
  • Analyze MD

3rd week July

  • QF/QD MD (16th July)
  • Take eddy current on quad? MD
  • Analyze MD
  • Fancy plots

4th week July V on holiday +3 weeks

  • MB/QF/QD MD (23rd July)
  • First thesis chapter finished by late july

Operational test later requires filtering (later)

Dipole

  • Dipole compensation at flat bottom
    • Needs to be tested offline
  • Dipole compensation

Quadrupole

  • Bench set-up with array of hall sensors
  • Initial measurements validated
  • Measurements and post-processing
    • Additional waveforms need to be prepared. What cases do we want to cover?
    • Do we need to measure QF waveforms?
  • Modeling → finetune dipole model!
  • Deployment
    • Precycling and autoregressive model
    • Quantify error propagation

Compensation on quadrupole only!

Other

  • Accelerator Physics course
  • Accelerator Physics exercise course
  • SPS MPC presentation
  • Dipole operational test #2
  • Filtering

Open questions

Thesis writing

???

gantt

  

title July planning

dateFormat YYYY-MM-DD

axisFormat %d/%m

excludes weekends saturday,sunday

  
  

section Dipole

Dedicated MD: milestone, 2025-07-09, 1d

Dedicated MD postprocessing: d2, 2025-07-10, 1d

Model validation w/ eddy currents subtracted: 2025-07-03, 2d

  

section Quadrupole

Bench set up for absolute measurements: q1, 2025-06-25, 3d

Measurement campaign #1: after q1, 5d

Model training / fine-tuning: q3, 2025-07-03, 5d

Validation: q4, 2025-07-07, 4d

Inference impl QF: q5, after q4, 1d

Coupled dry run QF/QD: q6, after q5, 2d

Dedicated MD (SFT FT QF/QD): milestone, q6, 2025-07-16, 1d

Dedicated MD postprocessing: q7, 2025-07-17, 1d

Measurement campaign #2: q8, after q6, 2d

Model retraining: q9, after q7, 3d

  

Coupled dry run MB/QF/QD: q10, 2025-07-21, 2d

Dedicated MD (SFT FT QF/QD): milestone, 2025-07-23, 1d

Dedicated MD postprocessing: q11, 2025-07-24, 1d

  

Measurement campaign #3: q12, 2025-07-28, 5d

  

Dedicated MD (SFT FT MB/QF/QD): milestone, q13, 2025-08-13, 1d

Dedicated MD postprocessing: q14, after q13, 1d

  

Eddy current characterization ??: milestone, after q8, 1d

  

section Other

SPS MPC #85 slides: o1, 2025-06-26, 2d

SPS MPC #85: milestone, o2, 2025-07-01, 1d

MBI operational test ???: milestone, o3, 2025-07-16, 1d

Coursework: o4, 2025-08-20, 2025-08-31

  

section Thesis

Skeleton: w1, 2025-07-21, 10d

Drafting: w2, 2025-08-03, 10d

Opportunities to test

Dedicated MD 2025-07-09 (Dipole only) Dedicated MD 2025-07-16 (Quadrupole first tests, SFT FT only) Dedicated MD 2025-07-23 (Quadrupole second tests, SFT FT only) Dedicated MD 2025-08-13 (Dipole + Quadrupole coupled tests?)

Graph View