Difference between revisions of "2020-3-5-LeadershipReports"

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(Created page with "'''March 5 2020 Report - Feb 17 - Mar 13''' '''Director - Todd Satogata''' <br> '''Todd Satogata''' '''Previous two weeks (Feb 3 - Feb 14)''' - ADMIN AI/ML planning...")
 
 
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'''Todd Satogata'''
 
'''Todd Satogata'''
  
   '''Previous two weeks (Feb 3 - Feb 14)'''
+
   '''Previous two weeks (Feb 17 - Feb 28)'''
      - ADMIN AI/ML planning, training, paper reviews (NIM, PRAB, NSERC)
+
      - MGMT Meetings, SSIII hire next steps,
+
      - EIC Meetings, Dave Douglas planning, parameter review
+
      - OPS Daily meetings, re-engage with operations daily needs
+
      - OPS GlueX/KLF collab meeting prep, meetings (Feb 12-13)
+
      - IPAC Conference committee followup, SAB selections
+
  '''Next two weeks (Feb 17 - Feb 28)'''
+
 
       - ADMIN 12 GeV PRAB writing/meets, group move planning
 
       - ADMIN 12 GeV PRAB writing/meets, group move planning
 
       - MGMT Group meet (Feb 19), Stand-down (Feb 26), LMBB
 
       - MGMT Group meet (Feb 19), Stand-down (Feb 26), LMBB
 
       - EIC Meetings, BNL work planning, parameter review
 
       - EIC Meetings, BNL work planning, parameter review
 
       - OPS Optics on-call (through Feb 25), Hall D raster optics
 
       - OPS Optics on-call (through Feb 25), Hall D raster optics
 +
      - VACATION (Feb 27)
 +
  '''Next two weeks (Mar 2 - Mar 13)'''
 +
      - ADMIN 12 GeV PRAB writing/meets, group move planning, PRAB review
 +
      - MGMT Stand-down notes, JSA monthly, training updates
 +
      - MGMT AI for NP workshop
 +
      - EIC Meetings, BNL work/resource planning, parameter review
 +
      - OPS UITF tour, start CASA involvement; positron beams meet
 +
      - OPS CEBAF high current, diagnostics support planning
 
       - OPS KLF discussions, proposal contribution
 
       - OPS KLF discussions, proposal contribution
       - ODU/SBIR Start prepping Sunil Pokharel for Xelera SBIR work
+
       - ODU/SBIR Prep Sunil Pokharel for Xelera SBIR, grad student review
 
       - IPAC Light peer review assistance (Peter McIntosh)
 
       - IPAC Light peer review assistance (Peter McIntosh)
      - VACATION (Feb 27)
+
 
  
  
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'''Alex Bogacz'''
 
'''Alex Bogacz'''
 
    
 
    
   '''Previous two weeks (Feb 3 - Feb 14)'''  
+
   '''Previous two weeks (Feb 17 - Feb 28)'''  
       - Machine support, OOC
+
       - Machine support  
 +
      - Preparing  for Graduate Student Progress Review
 +
      - Exploring Cornell’s magnets for ER@CEBAF
 +
      - Selection of REU 2020 Summer students
 +
      - Exploring Jupyter Notebook for USPAS course on Practical Lattice Design
 +
  '''Next two weeks (Mar 2 - Mar 13)'''
 +
      - Machine support
 +
      - Conducting Graduate Student Progress Review
 +
      - 'First cut' chicane layout with Cornell’s magnets
 
       - PRAB paper review
 
       - PRAB paper review
       - CEBAF ER chicane re-config. with Cornell’s magnets
+
       - TRC invention disclosure review
      - USPAS 21 course on Practical Lattice Design, rescoping work with Cédric
+
  '''Next two weeks (Feb 17 - Feb 28)'''
+
      - Machine support
+
      - Preparing  for  Graduate Student Progress Review
+
      - CEBAF ER chicane with Cornell’s magnets
+
      - Exploring Jupiter Notebook for USPAS course on Practical Lattice Design
+
 
+
  
  
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'''Rui Li''
 
'''Rui Li''
 
    
 
    
   '''Previous two weeks (Feb 3 - Feb 14)'''
+
   '''Previous two weeks (Feb 17 - Feb 28) On Leave'''
       -  
+
       - Participate in bnl/jlab remote meetings
   '''Next two weeks (Feb 17 - Feb 28)'''  
+
      - Participate in ALS-U remote impedance meetings
       -  
+
   '''Next two weeks (Mar 2 - Mar 13) Work at home'''  
 +
       - Read over collective effect studies in the eRHIC design
 +
      - Email discussions with fellow EIC task force members of EIC, Mike Blaskiewicz and Alexei Blednykh, on status
 +
        of instability and impedance in the EIC design
 +
      - Read over BNL impedance calculation results for EIC
 +
      - Participate remote impedance meeting for EIC
 +
      - Participate remote impedance meeting for ALS-U
 +
      - Email discussion of EIC impedance results with JLAB colleague Frank Marhauser and Bob Rimmer
 +
      - Study Frank's impedance results for corrugated beam pipe
 +
 
  
  
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'''Edy Nissen'''
 
'''Edy Nissen'''
 
    
 
    
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       -  
+
       - I was mainly working as Program Deputy in OPS
     '''Next two weeks (Feb 17 - Feb 28)'''
+
      - I was also off for 2 days
       -  
+
     '''Next two weeks (Mar 2 - Mar 13)'''
 +
       - I've spent some time with administrative issues
 +
      - I sat in on Beam studies
 +
      - I will be working on both getting ready for DODGE in May as well as my IPAC contributions
 +
 
  
  
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'''Chris Tennant'''
 
'''Chris Tennant'''
 
    
 
    
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - Presenting a short AI talk at ODU/JLab Engineering Meeting
+
       - Preparation for AI Hackathon
      - Organizing all aspects of AI Hackathon
+
       - Co-review ML/MOGA paper (with Alicia)
       - Big effort with Lasitha to work on new models for SRF classifier
+
       - Development/meeting for JLab AI webpage
      - Generate and submit pre-proposal with CNU for FOA ("Accelerator Stewardship")
+
      - RF classifier model development
       - Generate content for possible AI (public) webpage
+
     '''Next two weeks (Mar 2 - Mar 13)'''
     '''Next two weeks (Feb 17 - Feb 28)'''
+
       - Attend and participate in "AI for Nuclear Physics" Workshop
       - Meet with communications group about AI webpage
+
       - CAS Seminar prep
       - Deploy (hopefully) new models for SRF classifier
+
       - RF classifier model development
       - Safety stand down
+
       - working on RL problem for lunch series
       - Continue work for AI Hackathon
+
      - Presenting work at AI Lunch Series about winning Problem of the Quarter #3
+
  
  
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'''Yuhong Zhang'''
 
'''Yuhong Zhang'''
  
   '''Previous two weeks (Feb 3 - Feb 14)'''
+
   '''Previous two weeks (Feb 17 - Feb 28)'''
 
       -  
 
       -  
   '''Next two weeks (Feb 17 - Feb 28)'''
+
   '''Next two weeks (Mar 2 - Mar 13)'''
 
       -  
 
       -  
  
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'''Max Bruker'''
 
'''Max Bruker'''
  
   '''Previous (Feb 3 - Feb 14)'''
+
   '''Previous (Feb 17 - Feb 28)'''
       - Literature study on ferrite-based cavity tuning, harmonic kicker prototype, and cavity plasma processing
+
       - All data sets have been looked at, including dithering.
       - Analysis of IMP experiment
+
      - At the frequencies that have been tried so far, triangle-wave dithering does not do what you'd think. In
            - Consistency checks of electron bunch length and relative phase
+
        terms of overall sigma of the bunches, the cooling properties are similar, but the beam loss is egregious.
            - Comparison of relative beam loss and evolution of statistical moments
+
        The physical reason is understood by handwaving at best, and further experiments are warranted (to be carried
            - Started analysis of dithering data; massive effect on RF spectrum not understood yet, reason for increase in beam loss unclear
+
        out by someone else, presumably)
   '''Next (Feb 17 - Feb 28)'''
+
       - There was an error in the square-wave dithering experiment that resulted in half the electron bunches
       - Continue analysis
+
        missing. So what we have is basically a statically displaced bunch with half the duty cycle. As might be
 
+
        expected, the core overcooling effect is strongly reduced, but the cooling rate is also low (in part because
 +
        of the low duty cycle) and beam loss is high.
 +
      - In all dithering experiments, the synchrotron sidebands in the beam spectrum light up like a Christmas tree
 +
        as a result of cooling. There also seem to be additional modulation sidebands of unclear origin. It looks
 +
        like there may be some kind of microbunching going on. This is where the experiment could start being
 +
        interesting.
 +
      - This observation has led us to switch to a more accurate transfer impedance model for the BPM as opposed to
 +
        naive integration to transform BPM voltage into beam current. There is a ton of high-frequency content in the
 +
        BPM signal of the cooled bunches, and taking into account that the transfer impedance becomes real at some
 +
        intermediate frequency, you can actually see a massive distortion of the bunches on short timescales as a
 +
        result of dithered cooling.
 +
   '''Next (Mar 2 - Mar 13)'''
 +
       - Hopefully finalize analysis, reach consistency, perform somewhat decent visualization of results. Prepare
 +
        seminar talk to present all this stuff on March 12.
 +
      - We are currently aiming for a PRST publication limited to the boring results. If we can get the transverse
 +
        data remeasured, it'll be more consistent, but we can make do with what we have if needed. It depends on the
 +
        availability of IMP folks that has been limited by the recent pandemic.
 +
      - Unfortunately, it seems that the dithering stuff is not understood well enough with the current data to
 +
        warrant inclusion in this publication. We are unlikely to get enough beam time to make a more meaningful
 +
        measurement at this point.
  
  
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'''Fanglei Lin'''
 
'''Fanglei Lin'''
  
   '''Previous two weeks (Feb 3 - Feb 14)'''
+
   '''Previous two weeks (Feb 17 - Feb 28)'''
 
         - Worked on the storage ring cooler project
 
         - Worked on the storage ring cooler project
 
         - Worked on teaching material for the Spin@USPAS class
 
         - Worked on teaching material for the Spin@USPAS class
         - Studied the eRHIC design
+
         - Studying eRHIC design and participated in the discussion of EIC task forces
         - Miscellaneous: attended the Innovative HE Cooling Project Status meeting, attended the Storage Ring Cooler meeting, attended JLEIC
+
         - Miscellaneous: attended the Storage Ring Cooler meeting, attended meetings for the Spin@USPAS class,
          weekly meeting, attended meetings for the Spin@USPAS class, attended the EIC accelerator design team meeting
+
          attended the EIC accelerator design team meeting
   '''Next two weeks (Feb 17 - Feb 28)'''
+
   '''Next two weeks (Mar 2 - Mar 13)'''
 
         - Work on the storage ring cooler project
 
         - Work on the storage ring cooler project
 
         - Work on teaching material for the Spin@USPAS class
 
         - Work on teaching material for the Spin@USPAS class
         - Studied the eRHIC design and prepare for the contribution to the design of EIC
+
         - Study eRHIC design and prepare for the contribution to the design of EIC
 
+
 
+
  
  
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'''Bhawin Dhital'''
 
'''Bhawin Dhital'''
 
    
 
    
     '''Previous two weeks ()'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       -  
+
       - I got student grant to participate in AccApp20 conference which was supposed to held in Vienna, Austria from
     '''Next two weeks (Jan 6 - Jan 17)'''
+
        April 05 - 09, Vienna, Austria.
       -  
+
      - I was busy for visa application process and I got a visa to attend the conference.
 +
      - Understanding damping time and IBS time in a two-energy storage ring.
 +
      - Target Operator training at Hall C, Hall C walk-through training.
 +
     '''Next two weeks (Mar 2 - Mar 13)'''
 +
       - Calculating damping and IBS time.
 +
      - Participating JLab hack-athon and AI workshop.
 +
      - Canceling all reservation which was made for AccApp20, Now AppAcc20 is offcially canceled.
 +
      - Working intensely in a two-energy storage ring project.
 +
      - Acknowledgement: Thanks to Dr Vasiliy Morozov who has greatly helped us every time. He is very smart to
 +
        figure out the problems with solutions.
  
 
<br>
 
<br>
 
'''Vasiliy Morozov'''
 
'''Vasiliy Morozov'''
  
     '''Previous two weeks (Jan 20 - Jan 31)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - Work on two-energy storage ring  
+
      - Resubmitted a PRL article on spin transparency
       - Spin tracking simulations for the transparent spin experiment
+
      - Planning of collaborative work with BNL
      - EIC interaction region work
+
      - Work on detector solenoid integration
      - IBS optimization in the JLEIC ion collider ring
+
       - Work on two-energy storage ring cooler
     Next two weeks (Feb 3 - Feb 14)
+
       - Spin tracking for the transparent spin experiment
       - Work on two-energy storage ring
+
     Next two weeks (Mar 2 - Mar 13)
       - Spin tracking simulations for the transparent spin experiment
+
       - Preparation of a PRAB paper on spin response function
       - EIC interaction region work
+
      - Work on detector solenoid compensation
 +
       - Spin tracking simulations  
 +
       - Work on beam-beam modeling
 +
      - Work on crabbing dynamics
  
  
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<br>
 
<br>
Amy Sy
+
'''Amy Sy'''
 
+
    Previous two weeks (Jan 20 - Jan 31)
+
      - Longitudinal Schottky signal analysis for December 2019 IMP bunched beam cooling experiments. Evaluating the full width at half maximum
+
        of the central peak in the beam spectrum over the 2 seconds during which the pulsed electron beam is cooling the ion beam. This analysis
+
        resulted in the conclusion that the resolution of the data is not sufficient to estimate the cooling time.
+
      - Preproposal for Early Career Award titled "Laser-driven Polarized Deuterium Source" was encouraged for submission of full proposal.
+
    Next two weeks (Feb 3 - Feb 14)
+
      - Continued work on and wrapping up the longitudinal Schottky signal analysis, including looking at the initial dithering data and
+
        reduction of number of sidebands as an indication of cooling.
+
      - Continued work on getting the DTL portion of the JLEIC ion linac working in PyORBIT, to finish up H- intrabeam stripping estimates.
+
      - Work on early career proposal.
+
 
+
  
 +
    '''Previous two weeks (Feb 17 - Feb 28)'''
 +
      - H- intrabeam stripping estimate in JLEIC ion linac using PyORBIT. Cleaning up of the lattice model used by M.
 +
        Clyburn to split the superconducting RF cavities to incorporate three gaps versus a single gap per cell.
 +
        Calculations of the H- intrabeam stripping cross-section as a function of the relative beam velocity. First
 +
        pass at calculating the fractional beam loss as a function of linac length.
 +
      - Longitudinal Schottky signal analysis for the IMP cooling experiment including dithered electron beam data.
 +
        Dithering the electron beam by 100 - 1000 Hz at different electron and ion bunch lengths generated more
 +
        sidebands in the cooling process that persist even in the later stages of the cooling duration. Additional
 +
        satellites at the dithering frequency are sometimes seen in the spectra, but not for every parameter set, so
 +
        conclusions on general behavior are difficult to make. Focus will be on the fixed frequency data for the
 +
        resultant publication.
 +
      - Discussions with A. Hutton and Y. Derbenev on new electron EDM experiment concepts.
 +
    '''Next two weeks (Mar 2 - Mar 13)'''
 +
      - Participation in the AI for Nuclear Physics workshop.
 +
      - Continued work on the H- intrabeam stripping estimates.
 +
      - More discussions on electron EDM.
 +
      - Completing Radworker 1 training.
  
  
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----
 
----
 
'''Computational Physics - Yves Roblin'''<br>
 
'''Computational Physics - Yves Roblin'''<br>
Yves Roblin
+
'''Yves Roblin'''
     Previous two weeks (Jan 6 - Jan 17)
+
     Previous two weeks (Feb 17 - Feb 28)
      - Vacation (until Jan 8)
+
       -  
       - AI workshop organizing committee meetings and organizational work
+
     Next two weeks (Mar 2 - Mar 13)
      - Accelerator restart, BTEAM meetings
+
       -  
      - TRC committee meetings
+
      - FOA report on beambeam
+
      - Staff evaluations
+
     Next two weeks (Jan 20 - Jan 31)
+
       - Hall A recommissioning, review of specifications for beam deliveries
+
      - USPAS meetings
+
      - Preparation of slides for summer USPAS teaching 
+
      - Preparation of lecture notes for USPAS
+
      - Staff evaluations, final step
+
      - Calculations for spin transport IPAC contribution (with J. Grames/M. Joyce)
+
  
  
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<br>
 
<br>
Randi Gamage
+
'''Randi Gamage'''
  
     Previous two weeks (Jan 6 - Jan 17)
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - Chromaticity correction
+
       - IPAC papers
      - Added two mobius insertions to the ICR
+
       - Multipole correction for jelic icr (not converging probably due to too many correctors?)
       - Multipole correction for jelic icr
+
     '''Next two weeks (Mar 2 - Mar 13)'''
     Next two weeks (jan 20 - Jan 31)
+
       - IPAC papers
       - Designing a dual arm chicane for Hall D energy doubling
+
       - Multipole correction for jleic icr  
       - Multipole correction for jleic icr
+
      - Looking at EIC detector solenoid compensation
  
 
  
  
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'''River Huang'''
 
'''River Huang'''
  
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - CASA Beam-Beam package - We completed revising “Crabbing Kick” part of CASA Beam-Beam package, since now the crabbing kick code can work
+
       - CASA Beam-Beam package - We are working on revising Lie-operator code part of CASA Beam-Beam package, the
         on both Linux and Windows10 system with Graphical User Interface (GUI).
+
         part will record the details of “slice-slice” kick which acts on the 6 phase space coordinates at s=0(the IP)
     '''Next two weeks (Feb 17 - Feb 28)'''
+
     '''Next two weeks (Mar 2 - Mar 13)'''
       - Continue working on revise CASA Beam-Beam package.
+
       - Continue working on revising CASA Beam-Beam package.
  
  
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'''Isurumali Neththikumara'''
 
'''Isurumali Neththikumara'''
  
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - Tried to obtain the same diffusion plot for eRHIC parameters as in FOA-18.
+
       -  
      - Prepared a report for Oral qualifying exam.
+
     '''Next two weeks (Mar 2 - Mar 13)'''
     '''Next two weeks (Feb 3 - Feb 14)'''
+
       -  
       - Figure out the inconsistency of diffusion rate results with BNL plots.
+
      - Start working on simulations for DODGE project.
+
  
  
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     '''Previous two weeks (Feb 3 - Feb 14)'''
 
     '''Previous two weeks (Feb 3 - Feb 14)'''
 
       - '''AIPINJ'''
 
       - '''AIPINJ'''
         - Updated elegant deck to reflect layout changes from ME.
+
         - Yet another layout update
         - Verified apertures wide enough for solenoid scans
+
         - Got input Twiss and solenoid setpoints from Alicia's GPT model.
        - Match with Darmstadt triplets vs. various wien angles.
+
         - Got QW fieldmaps from Jay and imported into elegant deck; verified the generic KQUAD models are not far
      - '''Hall A target position excursion'''
+
          off
         - Attended emergency meeting
+
         - Rematched with QWs and new input Twiss for all the wien configurations; sent required QW setpoints to Jay
        - Recompiled Chime for RHEL7
+
         - Provided scripts and Chime configs for target positions and current lock
+
        - Fixed the above scripts when they became broken overnight.
+
 
       - '''12GeV PRAB'''
 
       - '''12GeV PRAB'''
         - Searched for sources for beam locks section
+
         - Completed draft of Beam Locks section
       - '''AHLA''
+
       - '''AI''
         - Spoke with Chris Slominski about taking over Fopt; he is not retiring after all.
+
         - Gathered RF data from MYA for model training
 
       - Optics On-Call
 
       - Optics On-Call
      - qsUtility tweaks
+
        - Was called in to assist with Injector rematch after Wien flip
      - MultiWire tweaks
+
       - Safety Stand Down
      - Provided input to Chris Tennant for the DOE AI for NP teleconference
+
       - Attended CASA, BTeam, AIPINJ, AI Lunch meetings
       - qsUtility for UITF
+
     '''Next two weeks (Mar 2 - Mar 13)'''
       - Attended BTeam, AIPINJ Modeling, CASA, AI Lunch, 12GeV PRAB, DOE Town Hall meetings
+
      - Registered for USPAS and AI Workshop
+
     '''Next two weeks (Feb 17 - Feb 28)'''
+
 
       - '''AIPINJ'''
 
       - '''AIPINJ'''
         - Provide nominal fields for solenoids and Darmstadt triplets to assess cooling requirements, etc.
+
         - Layout up to chopper should be finalized soon; get floor coordinates to S&A once it's finalized.
         - Include field maps in the elegant deck as they become available.
+
         - Get FX/FY fieldmaps from Jay to compare settings from elegant vs GPT.
       - '''Beam Studies'''
+
        -Figure out how to include Wien filter field maps into elegant, perhaps using Astra as an intermediate.
         - Test QTSnyder and MultiWire if Beam Studies time becomes available.
+
      - UITF tour
      - '''12GeV PRAB'''
+
       - '''AI for NP workshop'''
        - Write draft Beam Locks section
+
         - Lots of things to look up and learn about
       - Attend BTeam, AIPINJ Modeling, CASA, AI Lunch, 12GeV PRAB meetings.
+
      - Work with Brian Freeman and Tief on SLM emittance measurements
 +
      - Perhaps ressurect efforts on rayTrace
 +
      - Test QTSnyder and MultiWire if Beam Studies time becomes available.
 +
       - Attend CASA, BTeam, 12GeV PRAB, AIPINJ, AI Lunch meetings.
 +
      - Secondary Optics On-Call
 +
 
  
  
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'''He Zhang'''
 
'''He Zhang'''
  
     '''Previous two weeks (Feb 3 - Feb 14)'''     
+
     '''Previous two weeks (Feb 17 - Feb 28)'''     
       - Finshed the SBIR proposal and related forms.
+
       -  
      - Started running turn-by-turn simulation for IMP experiment.
+
     '''Next two weeks (Mar 2 - Mar 13)'''  
      - Testing new version of JSPEC. Add a new feature to JSPEC: load the ion beam sample from file, which could be used to continue a saved
+
       -  
        simulation or to use user-defined ion beam distribution.
+
      - Calculated the effect on the cooling rate by the momentum spread of the electron beam
+
     '''Next two weeks (Feb 17 - Feb 28)'''  
+
       - Finish revising the UI and start document the codes.
+
      - Perform simulations on IMP experiment.
+
 
   
 
   
 
    
 
    
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'''Kevin Jordan'''
 
'''Kevin Jordan'''
  
   '''Previous two weeks (Feb 3 - Feb 14)'''
+
   '''Previous two weeks (Feb 17 - Feb 28)'''
      -
+
  '''Next two weeks (Feb 17 - Feb 28)'''
+
 
       -  
 
       -  
 +
  '''Next two weeks (Mar 2 - Mar 13)'''
 +
      - Travel: 2/28 - 3/8 - IBIC 2020 PC Meeting
  
  
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'''Joe Gubeli'''
 
'''Joe Gubeli'''
  
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - '''Isotope Experiment –''' Reinstalled the camera that images the alignment target.
+
       - '''Isotope Experiment –''' Reinstalled the camera that images the alignment target after another RADCON mock
       - '''Halo monitor –''' We finally tracked down the missing $27k that was wire transferred on 10/10/2019. Radiabeam had applied the wrong
+
        run. Prepare for next week run.
 +
       - '''Halo monitor –''' The missing $27k was returned to Radiabeam. They have asked guidance on how to wire the
 +
        funds to us but nobody seems to be helping them. Not sure we will ever see it.
 
         routine code and the funds went to the State Department instead of DOE.
 
         routine code and the funds went to the State Department instead of DOE.
       - '''ARDDOT –''' Designed an imager that can be used to replace nearly any CEBAF viewer camera. The only requirement is that those viewers
+
       - '''ARDDOT –''' Preparing an installation manual for the CEBAF Viewer replacement. Took sometime this week to
         have a non-obsolete, limited aperture, viewport. Order the parts for a test setup as well as acquired an insertable assembly from I&C
+
         clean up Lab 2 after quarterly safety walk through remarks.
        and a viewer cross from the Vacuum Group. Assembled and tested the setup, it works well.
+
      - '''HPWS -''' Had some meetings to decide on functionality of the controls and GUI.
       - '''HPWS -''' Design a beam expander and focusing laser setup to tightly focus a laser spot on the thin wire of the scanner. Order,
+
       - '''Safety -''' Had the Quarterly as well as the Monthly Saftey LERF inspection. Housekeeping and low
         assembled, tested and installed the setup. The setup was needed to test Jay Yan’s control and acquisition hardware and software. He was
+
         illumination was the only concern. Housekeeping was remedied and FM is working the lights.
        able to successfully scan the wires to obtain the three Gaussian distributions.  
+
     '''Next two weeks (Mar 2 - Mar 13)'''
     '''Next two weeks (Feb 17 - Feb 28)'''
+
       - '''HPWS –''' Design a test setup to pulse a diode laser that simulates the electron beam. This will allow us
       - '''HPWS –''' Work with Jay and others to complete the device and prepare it for installation.
+
        to test the scanner’s acquisition in pulsed mode.  
       - '''ARDDOT –''' Continue working with Zemax. Start working on a couple of different optical designs that will allow the cameras on the  
+
       - '''ARDDOT –''' Continue working with Zemax. Start working on a couple of different optical designs that will
        CEBAF SLMs to be in a lower radiation environment. The current beam setup in CEBAF allows for much higher production of radiation at the
+
        allow the cameras on the CEBAF SLMs to be in a lower radiation environment. The current beam setup in CEBAF
        detriment of the electronics in the tunnel.
+
        allows for much higher production of radiation at the detriment of the electronics in the tunnel.
 
+
      - '''Isotope Experiment -''' Support 1kW run.
  
  
Line 318: Line 348:
 
'''Michael Tiefenback'''
 
'''Michael Tiefenback'''
  
     '''Previous two weeks (Feb 3 - FE 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
 
       -  
 
       -  
     '''Next two weeks (Feb 17 - Feb 28)'''
+
     '''Next two weeks (Mar 2 - Mar 13)'''
 
       -  
 
       -  
  
Line 329: Line 359:
 
'''LERF - Steve Benson'''  
 
'''LERF - Steve Benson'''  
 
   
 
   
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - Visited Duke University and helped out with OAM gamma production experiment
+
       - Assist in the isotope line commissioning run but administrative limit error cancelled production run.
       - Continued to review the LOD
+
       - Hosted seminar by Carlos Hernandez-Garcia
       - Straight-merger coils are complete and installed in the measurement apparatus.  
+
       - Worked on setting up task forces for EIC at BNL
       - Review abstract on LHeC dynamics
+
      - Prepared for an attended the final CBETA review. Wrote up report for it.
     '''Next two weeks (Feb 17 - Feb 28)'''
+
       - Analyzed Straight-merger coil magnet measurement data and signed off on shipping them to ANL
       - Assist in the isotope line commissioning run and isotope production run.
+
    - Assisted William and Mary Property staff to find W&M property in the LERF
       - Host seminar by Carlos Hernandez-Garcia
+
     '''Next two weeks (Mar 2 - Mar 13)'''
       - Plan seminar on OAM gamma production
+
       - Assist in commissioning run and production isotope run the week of March 9
       - Prepare for an attend the final CBETA review
+
       - Host seminar by Ying Wu.
 +
       - Set up simulations of EIC cooling
 +
       - Send Straight merger coils to ANL
 +
  
  
Line 346: Line 379:
 
'''Andrew Hutton'''
 
'''Andrew Hutton'''
 
   
 
   
     '''Previous two weeks (Feb 3 - Feb 14)'''
+
     '''Previous two weeks (Feb 17 - Feb 28)'''
       - The last two weeks have been consumed by my proposal to change the frequency of eRHIC to 800 MHz.  That includes demonstrating that the
+
       - EIC, participated in some meetings, I am unimpressed!  I also have been advising Yuhong about a different
         eRHIC harmonic number does not need to be divisible by 3, preparing a paper for publication (where?), and updating my presentation. I
+
        parameter set with more, smaller bunches.     
         have been rather vocal in pushing this idea as I think it will help define how CASA collaborates with BNL in the future.   
+
    '''Next two weeks (Mar 2 - Mar 13)
       - I also spent a small amount of time preparing for the first Gallium irradiation which was terminated due to an administrative fault by
+
      - EIC, Michelle Shin and Manouchehr were visiting today and Mike Spata told them about my proposal to change
         one of the best operators.  We are also looking into irradiating Vanadium 51 to make Scandium 47, another interesting radioisotope.  
+
        frequency to 800 MHz.  I met them both at lunchtime so I got the chance to do a sales pitch.  They were
    '''Next two weeks (Feb 17 - Feb 28)
+
         receptive - particularly with regard to ONP being the contact for the future CERN SRF, not HEP!  So when
       - For the 800 MHz proposal, who knows?  I also would like to spend time with Yuhong and Vasiliy to develop an alternative luminosity
+
        there is an explosion from BNL about DOE knowing about the frequency change proposal, it wasn’t me!  I
         optimization to see if we can come up with better numbers.   
+
        attended a video conference on SRF where the enormous problems caused by the few, big bunches were discussed.
       - For the isotope program, we will hopefully have our first irradiation during the week of March 12, so we will need to prepare for that.   
+
         I think they would be very receptive to a change in the operating mode that distributed the charge more
       - I will be at the VNECA meeting in Richmond next Wednesday.
+
        uniformly.   
 +
       - Isotope preparations continue.  We heard today that Jamal will not be able to accept the crucible until his
 +
        new lab is set up - and we have no date for that.  I am maintaining the 1 kW run and will move ahead to use
 +
         the data to prepare for a 5 kW run, perhaps sometime in April.
 +
       - I participated in VNECA which is now focusing on generating a strategic plan for nuclear energy in Virginia.
 +
         I can’t participate in preparing the plan, but they would welcome someone from JLab.   
 +
       - I am in the process of canceling my trip to AccApp 2020.  A clear instruction from DOE forbidding foreign
 +
        travel would be most helpful in getting reimbursements.   
 +
       - I signed up for HPI training next week - did you know it is two mornings, 2 1/2 hours each?

Latest revision as of 11:31, 12 March 2020

March 5 2020 Report - Feb 17 - Mar 13 Director - Todd Satogata

Todd Satogata

  Previous two weeks (Feb 17 - Feb 28)
     - ADMIN 12 GeV PRAB writing/meets, group move planning
     - MGMT Group meet (Feb 19), Stand-down (Feb 26), LMBB
     - EIC Meetings, BNL work planning, parameter review
     - OPS Optics on-call (through Feb 25), Hall D raster optics
     - VACATION (Feb 27)
  Next two weeks (Mar 2 - Mar 13)
     - ADMIN 12 GeV PRAB writing/meets, group move planning, PRAB review
     - MGMT Stand-down notes, JSA monthly, training updates
     - MGMT AI for NP workshop
     - EIC Meetings, BNL work/resource planning, parameter review
     - OPS UITF tour, start CASA involvement; positron beams meet
     - OPS CEBAF high current, diagnostics support planning
     - OPS KLF discussions, proposal contribution
     - ODU/SBIR Prep Sunil Pokharel for Xelera SBIR, grad student review
     - IPAC Light peer review assistance (Peter McIntosh)



Alex Bogacz

  Previous two weeks (Feb 17 - Feb 28) 
     - Machine support 
     -	Preparing  for Graduate Student Progress Review 
     -	Exploring Cornell’s magnets for ER@CEBAF
     -	Selection of REU 2020 Summer students 
     -	Exploring Jupyter Notebook for USPAS course on Practical Lattice Design
  Next two weeks (Mar 2 - Mar 13)
     - Machine support 
     -	Conducting Graduate Student Progress Review 
     -	'First cut' chicane layout with Cornell’s magnets
     -	PRAB paper review
     -	TRC invention disclosure review



'Rui Li

  Previous two weeks (Feb 17 - Feb 28) On Leave
     - Participate in bnl/jlab remote meetings
     - Participate in ALS-U remote impedance meetings
  Next two weeks (Mar 2 - Mar 13) Work at home 
     - Read over collective effect studies in the eRHIC design
     - Email discussions with fellow EIC task force members of EIC, Mike Blaskiewicz and Alexei Blednykh, on status
       of instability and impedance in the EIC design
     - Read over BNL impedance calculation results for EIC
     - Participate remote impedance meeting for EIC
     - Participate remote impedance meeting for ALS-U 
     - Email discussion of EIC impedance results with JLAB colleague Frank Marhauser and Bob Rimmer
     - Study Frank's impedance results for corrugated beam pipe



Edy Nissen

   Previous two weeks (Feb 17 - Feb 28)
     - I was mainly working as Program Deputy in OPS
     - I was also off for 2 days
   Next two weeks (Mar 2 - Mar 13)
     - I've spent some time with administrative issues
     - I sat in on Beam studies
     - I will be working on both getting ready for DODGE in May as well as my IPAC contributions



Chris Tennant

   Previous two weeks (Feb 17 - Feb 28)
     - Preparation for AI Hackathon
     - Co-review ML/MOGA paper (with Alicia)
     - Development/meeting for JLab AI webpage
     - RF classifier model development
   Next two weeks (Mar 2 - Mar 13)
     - Attend and participate in "AI for Nuclear Physics" Workshop 
     - CAS Seminar prep
     - RF classifier model development
     - working on RL problem for lunch series




Accelerator R & D - Yuhong Zhang

Yuhong Zhang

  Previous two weeks (Feb 17 - Feb 28)
     - 
  Next two weeks (Mar 2 - Mar 13)
     - 


Max Bruker

  Previous (Feb 17 - Feb 28)
     - All data sets have been looked at, including dithering.
     -	At the frequencies that have been tried so far, triangle-wave dithering does not do what you'd think. In
       terms of overall sigma of the bunches, the cooling properties are similar, but the beam loss is egregious.
       The physical reason is understood by handwaving at best, and further experiments are warranted (to be carried
       out by someone else, presumably)
     -	There was an error in the square-wave dithering experiment that resulted in half the electron bunches 
       missing. So what we have is basically a statically displaced bunch with half the duty cycle. As might be
       expected, the core overcooling effect is strongly reduced, but the cooling rate is also low (in part because
       of the low duty cycle) and beam loss is high.
     -	In all dithering experiments, the synchrotron sidebands in the beam spectrum light up like a Christmas tree
       as a result of cooling. There also seem to be additional modulation sidebands of unclear origin. It looks
       like there may be some kind of microbunching going on. This is where the experiment could start being 
       interesting.
     -	This observation has led us to switch to a more accurate transfer impedance model for the BPM as opposed to
       naive integration to transform BPM voltage into beam current. There is a ton of high-frequency content in the
       BPM signal of the cooled bunches, and taking into account that the transfer impedance becomes real at some
       intermediate frequency, you can actually see a massive distortion of the bunches on short timescales as a
       result of dithered cooling.
  Next (Mar 2 - Mar 13)
     - Hopefully finalize analysis, reach consistency, perform somewhat decent visualization of results. Prepare 
       seminar talk to present all this stuff on March 12.
     -	We are currently aiming for a PRST publication limited to the boring results. If we can get the transverse
       data remeasured, it'll be more consistent, but we can make do with what we have if needed. It depends on the
       availability of IMP folks that has been limited by the recent pandemic.
     -	Unfortunately, it seems that the dithering stuff is not understood well enough with the current data to 
       warrant inclusion in this publication. We are unlikely to get enough beam time to make a more meaningful
       measurement at this point.



Fanglei Lin

  Previous two weeks (Feb 17 - Feb 28)
       - Worked on the storage ring cooler project
       - Worked on teaching material for the Spin@USPAS class
       - Studying eRHIC design and participated in the discussion of EIC task forces
       - Miscellaneous: attended the Storage Ring Cooler meeting, attended meetings for the Spin@USPAS class,
         attended the EIC accelerator design team meeting
  Next two weeks (Mar 2 - Mar 13)
       - Work on the storage ring cooler project
       - Work on teaching material for the Spin@USPAS class
       - Study eRHIC design and prepare for the contribution to the design of EIC


Bhawin Dhital

   Previous two weeks (Feb 17 - Feb 28)
     - I got student grant to participate in AccApp20 conference which was supposed to held in Vienna, Austria from
       April 05 - 09, Vienna, Austria.
     - I was busy for visa application process and I got a visa to attend the conference.
     - Understanding damping time and IBS time in a two-energy storage ring.
     - Target Operator training at Hall C, Hall C walk-through training.
   Next two weeks (Mar 2 - Mar 13)
     - Calculating damping and IBS time.
     - Participating JLab hack-athon and AI workshop.
     - Canceling all reservation which was made for AccApp20, Now AppAcc20 is offcially canceled.
     - Working intensely in a two-energy storage ring project.
     - Acknowledgement: Thanks to Dr Vasiliy Morozov who has greatly helped us every time. He is very smart to
       figure out the problems with solutions.


Vasiliy Morozov

   Previous two weeks (Feb 17 - Feb 28)
     - Resubmitted a PRL article on spin transparency
     - Planning of collaborative work with BNL
     - Work on detector solenoid integration
     - Work on two-energy storage ring cooler
     - Spin tracking for the transparent spin experiment
   Next two weeks (Mar 2 - Mar 13)
     - Preparation of a PRAB paper on spin response function
     - Work on detector solenoid compensation
     - Spin tracking simulations 
     - Work on beam-beam modeling
     - Work on crabbing dynamics




Amy Sy

   Previous two weeks (Feb 17 - Feb 28)
     - H- intrabeam stripping estimate in JLEIC ion linac using PyORBIT. Cleaning up of the lattice model used by M.
       Clyburn to split the superconducting RF cavities to incorporate three gaps versus a single gap per cell.
       Calculations of the H- intrabeam stripping cross-section as a function of the relative beam velocity. First
       pass at calculating the fractional beam loss as a function of linac length.
     - Longitudinal Schottky signal analysis for the IMP cooling experiment including dithered electron beam data.
       Dithering the electron beam by 100 - 1000 Hz at different electron and ion bunch lengths generated more
       sidebands in the cooling process that persist even in the later stages of the cooling duration. Additional
       satellites at the dithering frequency are sometimes seen in the spectra, but not for every parameter set, so
       conclusions on general behavior are difficult to make. Focus will be on the fixed frequency data for the
       resultant publication.
     - Discussions with A. Hutton and Y. Derbenev on new electron EDM experiment concepts.
   Next two weeks (Mar 2 - Mar 13)
     - Participation in the AI for Nuclear Physics workshop.
     - Continued work on the H- intrabeam stripping estimates.
     - More discussions on electron EDM.
     - Completing Radworker 1 training.






Computational Physics - Yves Roblin
Yves Roblin

   Previous two weeks (Feb 17 - Feb 28)
     - 
   Next two weeks (Mar 2 - Mar 13)
     - 




Randi Gamage

   Previous two weeks (Feb 17 - Feb 28)
     - IPAC papers 
     - Multipole correction for jelic icr (not converging probably due to too many correctors?)
   Next two weeks (Mar 2 - Mar 13)
     - IPAC papers 
     - Multipole correction for jleic icr 
     - Looking at EIC detector solenoid compensation



River Huang

   Previous two weeks (Feb 17 - Feb 28)
     - CASA Beam-Beam package - We are working on revising Lie-operator code part of CASA Beam-Beam package, the
       part will record the details of “slice-slice” kick which acts on the 6 phase space coordinates at s=0(the IP)
   Next two weeks (Mar 2 - Mar 13)
     - Continue working on revising CASA Beam-Beam package.


Isurumali Neththikumara

   Previous two weeks (Feb 17 - Feb 28)
     - 
   Next two weeks (Mar 2 - Mar 13)
     - 



Dennis Turner

   Previous two weeks (Feb 3 - Feb 14)
     - AIPINJ
        - Yet another layout update
        - Got input Twiss and solenoid setpoints from Alicia's GPT model.
        - Got QW fieldmaps from Jay and imported into elegant deck; verified the generic KQUAD models are not far
          off
        - Rematched with QWs and new input Twiss for all the wien configurations; sent required QW setpoints to Jay
     - 12GeV PRAB
        - Completed draft of Beam Locks section
     - 'AI
        - Gathered RF data from MYA for model training
     - Optics On-Call
        - Was called in to assist with Injector rematch after Wien flip
     - Safety Stand Down
     - Attended CASA, BTeam, AIPINJ, AI Lunch meetings
   Next two weeks (Mar 2 - Mar 13)
     - AIPINJ
        - Layout up to chopper should be finalized soon; get floor coordinates to S&A once it's finalized.
        -  Get FX/FY fieldmaps from Jay to compare settings from elegant vs GPT.
        -Figure out how to include Wien filter field maps into elegant, perhaps using Astra as an intermediate.
     - UITF tour
     - AI for NP workshop
        - Lots of things to look up and learn about
     - Work with Brian Freeman and Tief on SLM emittance measurements
     - Perhaps ressurect efforts on rayTrace
     - Test QTSnyder and MultiWire if Beam Studies time becomes available.
     - Attend CASA, BTeam, 12GeV PRAB, AIPINJ, AI Lunch meetings.
     - Secondary Optics On-Call



He Zhang

   Previous two weeks (Feb 17 - Feb 28)     
     - 
   Next two weeks (Mar 2 - Mar 13) 
     - 

 



Diagnostic Development - Kevin Jordan

Kevin Jordan

  Previous two weeks (Feb 17 - Feb 28)
     - 
  Next two weeks (Mar 2 - Mar 13)
     - Travel: 2/28 - 3/8 - IBIC 2020 PC Meeting 



Joe Gubeli

   Previous two weeks (Feb 17 - Feb 28)
     - Isotope Experiment – Reinstalled the camera that images the alignment target after another RADCON mock
       run. Prepare for next week run.
     - Halo monitor – The missing $27k was returned to Radiabeam. They have asked guidance on how to wire the
       funds to us but nobody seems to be helping them. Not sure we will ever see it.
       routine code and the funds went to the State Department instead of DOE.
     - ARDDOT – Preparing an installation manual for the CEBAF Viewer replacement. Took sometime this week to
       clean up Lab 2 after quarterly safety walk through remarks.
     - HPWS - Had some meetings to decide on functionality of the controls and GUI.
     - Safety - Had the Quarterly as well as the Monthly Saftey LERF inspection. Housekeeping and low
       illumination was the only concern. Housekeeping was remedied and FM is working the lights.
   Next two weeks (Mar 2 - Mar 13)
     - HPWS – Design a test setup to pulse a diode laser that simulates the electron beam. This will allow us
       to test the scanner’s acquisition in pulsed mode. 
     - ARDDOT – Continue working with Zemax. Start working on a couple of different optical designs that will
       allow the cameras on the CEBAF SLMs to be in a lower radiation environment. The current beam setup in CEBAF
       allows for much higher production of radiation at the detriment of the electronics in the tunnel.
     - Isotope Experiment - Support 1kW run.



Michael Tiefenback

   Previous two weeks (Feb 17 - Feb 28)
     - 
   Next two weeks (Mar 2 - Mar 13)
     - 



CASA Fellows
LERF - Steve Benson

   Previous two weeks (Feb 17 - Feb 28)
     - Assist in the isotope line commissioning run but administrative limit error cancelled production run.
     -	Hosted seminar by Carlos Hernandez-Garcia
     -	Worked on setting up task forces for EIC at BNL
     -	Prepared for an attended the final CBETA review. Wrote up report for it.
     -	Analyzed Straight-merger coil magnet measurement data and signed off on shipping them to ANL
    -	Assisted William and Mary Property staff to find W&M property in the LERF
   Next two weeks (Mar 2 - Mar 13)
     - Assist in commissioning run and production isotope run the week of March 9
     -	Host seminar by Ying Wu.
     -	Set up simulations of EIC cooling
     -	Send Straight merger coils to ANL



Andrew Hutton

   Previous two weeks (Feb 17 - Feb 28)
     - EIC, participated in some meetings, I am unimpressed!  I also have been advising Yuhong about a different
       parameter set with more, smaller bunches.      
   Next two weeks (Mar 2 - Mar 13)
     - EIC, Michelle Shin and Manouchehr were visiting today and Mike Spata told them about my proposal to change
       frequency to 800 MHz.  I met them both at lunchtime so I got the chance to do a sales pitch.  They were
       receptive - particularly with regard to ONP being the contact for the future CERN SRF, not HEP!  So when
       there is an explosion from BNL about DOE knowing about the frequency change proposal, it wasn’t me!  I 
       attended a video conference on SRF where the enormous problems caused by the few, big bunches were discussed.
       I think they would be very receptive to a change in the operating mode that distributed the charge more 
       uniformly.  
     - Isotope preparations continue.  We heard today that Jamal will not be able to accept the crucible until his
       new lab is set up - and we have no date for that.  I am maintaining the 1 kW run and will move ahead to use
       the data to prepare for a 5 kW run, perhaps sometime in April.  
     - I participated in VNECA which is now focusing on generating a strategic plan for nuclear energy in Virginia.
       I can’t participate in preparing the plan, but they would welcome someone from JLab.  
     - I am in the process of canceling my trip to AccApp 2020.  A clear instruction from DOE forbidding foreign
       travel would be most helpful in getting reimbursements.  
     - I signed up for HPI training next week - did you know it is two mornings, 2 1/2 hours each?