2021-8-19-LeadershipReports

August 19, 2021 Report - Aug 2 - August 27 Director - Todd Satogata

Todd Satogata

  Previous two weeks (Aug 2 - Aug 13) 
     - VACATION (Aug 2-6), Med leave (AM Aug 12, dentist)
     - EIC Meetings (management, RF, crab, cooling, impedance, team, R&D, beam-beam)
     - EIC Meetings (second IR), resource planning (critical hires)
     - MGMT Meetings (Leadership/Dept Heads, CASA coffee)
     - OPS Meetings (08:00 daily, BTeam; optics on call)
  Next two weeks (Aug 16 - Aug 27) 
     - EIC Meetings (management, RF, crab, cooling, impedance, team, R&D, beam-beam)
     - EIC Meetings (second IR), resource planning (critical hires), interview (Aug 19)
     - EIC Develop work plans for Vasiliy/Fanglei, WBS for ERL
     - EIC AI@EIC talk planning (with Chris Tennant)
     - EIC C^3 Linac discussions (Mei Bai, SLAC)
     - MGMT Meetings (Leadership/Dept Heads, CASA coffee)
     - OPS Meetings (08:00 daily, BTeam; optics on call), MCC (Fri Aug 20)
     - ADMIN PSsQCD@EIC organizing committee meetings, training updates
     - ODU Physics Dept Faculty Meet (Aug 24)
     - VACATION (Aug 27), Med leave (part of Aug 19)

Alex Bogacz

  Previous two weeks (Aug 2 - Aug 13) 
     - Summer student guidance
     - Writing a PRAB paper on PERLE
     - Coordinating FFA@CEBAF
     - Writing letters of recommendation  
     - Writeup for ERL Roadmap Panel
     - Vacation 
  Next two weeks (Aug 16 - Aug 27)
     - One-on-one with Ryan on CEBAF Optics
     - Writing a paper on PERLE 
     - MED day
     - Times accounting training
     - FFA@CEBAF design
     - Paper review

Ryan Bodenstein

  Previous two weeks (Aug 2 - Aug 13) 
     - Operations meetings
     - B-Team meetings
     - Summer Student guidance
           - Talk preparation and attendance
           - Poster preparation and attendance
           - Paper preparation
     - FFA@CEBAF collab work
     - Positron/FFA liaison work
     - PhD Student guidance 
  Next two weeks (Aug 16 - Aug 27)
     - Operations meetings
     - B-Team meetings
     - FFA@CEBAF collab work
     - Positron/FFA liaison work
     - PhD Student guidance
     - Optics On Call
           - Assistance/observation of OPS during setup

Rui Li

  Previous two weeks (Aug 2 - Aug 13)
     - Collective effects in Riad, Vasiliy, Slava's EDM proposal
           - send Riad email about my understanding of the issue and approach needed. I still need to get into more  details of this problem
     - CBB and TCBI
           - Had some deeper looks at the effect of working points on the interplay of CBB/TCBI. Interesting behaviors show up when the two coherent spectral bands collide/overlap.
           - Finished writing up a summary of my recent tune-scan results and sent it to Mike Blaskiewicz
           - Got some ideas about how to eliminate the artificial tune dependence of the TCBI growth rate resulted from the over-simplification of the model in our study
           - Still need to think through about the effect of nonlinearity of beam-beam on the correct modeling of the multi-bunch coupling via the long-range transverse wake.
  Next two weeks (Aug 16 - Aug 27) 
     - CBB and TCBI
           - To understand the validity range of our numerical modeling, and gain better understanding of the modeling of beam-beam nonlinearity on the multibunch coupling, I start to perform the Vlasov analysis of the problem
           - Did the Vlasov analysis of the TCBI, and got results agree with theory

Edy Nissen

   Previous two weeks (Aug 2 - Aug 13)
     - Optics on call 8/3-8/10
     - DODGE paper submitted to PRAB
     - Continued experimentation with WARP
     - Took Aug 12 and 13 as vacation
     - Attended BTeam Meetings
   Next two weeks (Aug 16 - Aug 27)
     - Beam-beam Task force meeting
     - Attend BTeam Meetings
     - Determining NIM requirements for DODGE paper
     - Go back to working with WARP

Chris Tennant

   Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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Accelerator R & D - Yuhong Zhang

Yuhong Zhang

  Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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Bhawin Dhital

   Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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Amy Sy

   Previous two weeks (Aug 2 - Aug 13)
     - Laser particle counter: Continued system debugging, optimization, and data analysis to better understand operational modes and to obtain both phase and amplitude signals for event confirmation. Working on implementing various signal processing methods such as dynamic threshold or dynamic windowing to reduce false positive event rates. Working with vendor on acceptance testing specifications for the complete 24 channel system. Spare pump drop has been oriented vertically to be able to drop particles through the beam pipe - working on data analysis of events consisting of sand particles dropped through the active area.
     - Preliminary discussion with J. Grames on possible simulations of ionization by-products in a cryomodule using GPT to facilitate gas bremsstrahlung experiments in CEBAF..
   Next two weeks (Aug 16 - Aug 27)
     - Laser particle counter: Continued system debugging, optimization, and data analysis to better understand the operational modes and system variables that can be adjusted for best performance. Vendor visit on 8/19 to start pass/fail test, with current goal to obtain over 90% event detection for 80 um wire sweeping events - still discussing with the vendor on acceptable specifications on false positive event rates. Prior to and during the 8/19 visit, channels 0 and 1 could not be adjusted to give clean event signals using methods that improved SNR for other channels - the sensors for these channels are part of the initial batch and the vendor has decided to replace these sensors before continuing with pass/fail testing. The vendor has also returned the passive optical front end to their labs for fiber connector polishing. Analysis of data taken on 8/19 (wire sweeps and dropping of 50 um aluminum oxide particles) will continue, along with refinement of offline processing algorithms and methods. Will likely give an update on laser particle counter system status to the Detector Group in mid-September.

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Computational Physics - Yves Roblin
Yves Roblin

   Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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Randi Gamage

   Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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River Huang

   Previous two weeks (Aug 2 - Aug 13)
     - EIC Beam-Beam project: using CASA-BeamBeam code to calculate the transverse normalized emittance growth due to RF noise for SPS ring and EIC hadron ring.
   Next two weeks (Aug 16 - Aug 27)
     - EIC Beam-Beam project: we calculated the transverse normalized emittance growth due to RF noise for SPS ring and did the benchmark: the results show that CASA-BeamBeam results matched the CERN’s simulation results very well.

Isurumali Neththikumara

   Previous two weeks (Aug 2 - Aug 13)
     - Defined new objectives for NSGA II study since the previously defined functions seems to under constraint with increasing search dimensions and test them.
     - Tried SVD analysis with different cutoff values to see dominant behavior. 
            - It was difficult to observe dominant features as this analysis is based on simulated data, not real time data.
            - Tools developed can be useful in future studies
   Next two weeks (Aug 16 - Aug 27)
     - Refine the new objective functions based on mean squared error and moving average calculation and test them.
     - Prepare a presentation for the Annual Review.
         

Dennis Turner

   Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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He Zhang

   Previous two weeks (Aug 2 - Aug 13)
     - TPSA lib ready for submission.
     - FMM draft almost ready. Want to add more data and discussion on DA parallelization. 
   Next two weeks (Aug 16 - Aug 27)
     - Submit TPSA lib. 
     - Finish the FMM paper. 
     - Revisit and finish the non-Gaussian IBS model in JSPEC. 
     - Start to write JSPEC manual. 

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Diagnostic Development - Kevin Jordan

Kevin Jordan

  Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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Joe Gubeli

   Previous two weeks (Aug 2 - Aug 13)
     - Isotopes –
     - ARDDOT -  
   Next two weeks (Aug 16 - Aug 27)
     - Isotopes – 
     - ARDDOT –

Michael Tiefenback

   Previous two weeks (Aug 2 - Aug 13)
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   Next two weeks (Aug 16 - Aug 27)
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CASA Fellows
LERF - Steve Benson

   Previous two weeks (Aug 2 - Aug 13)
     - Finished and submitted PRAB and PoP paper reviews.
     - Reviewed C. Hernandez-Garcia paper for IEEE.
     - Reviewed NIM A paper on FAST magnetic beam transport before submission
     - Helped to derive required resources for ERL project
     - Analyzed new coherent photon production method (Angular Dispersion induced Microbunching). Presented analysis at working group meeting.
     - Went over Export Analysis with JLab lawyers. Agreed to contact optics vendors.
     - Amended LOSP for LERF vault to resolve CATs item. Sent out draft for review.
   Next two weeks (Aug 16 - Aug 27)
     - Attend SBIR/STTR update meeting.
     - Interview SSII candidate and submit evaluation.
     - Derive draft ERL project outline for the EIC
     - Continue developing longitudinal model for CeC ERL on LiTrack
     - Finish up harmonic RF tech. note.
     - Track down pressure systems / design documentation for gun HVPSs
     - Complete and submit new LOSP for LERF vault.
     - Rewrite and submit the LOSP for User Lab 4

Andrew Hutton

   Previous two weeks (Aug 2 - Aug 13) 
     - Isotopes and Loida: while on vacation, I realized that Loida’s program could be easily modified to carry out the same search for new isotope pathways for all of the possible projectiles: neutrons, protons, deuterons and alpha particles.  This should enable us to identify possible new pathways for most, if not all of the isotopes on the DOE-ONP Isotope Program “Most Wanted” list.  For this, Loida will modify her program and run it for different input conditions.  I have arranged with Balśa to pay her for four hours a week through Christmas to do this, in addition to paying her time while she is at AccApp’ 2021 presenting the results.  My part will be to provide a written paper based on the results - the intention is to submit it to a refereed journal.      
     - ERL: We had the second meeting of the ERL sub-Panel devoted to discussing the ERLC.  At the first meeting, Akira Yamamoto had prepared a 30 slide presentation with cost and power calculations, which we are now looking at offline.  Progress will be slow in August due to vacations, but will resume full swing in September.  We have been accorded a delay for delivering the conclusion until the end of September.  In the meantime, I wrote a draft of our conclusions for the CERC, and sent it around for the sub-Panel members to add, delete or modify.  The ERL Panel has not yet resumed looking at the actual roadmap, but will start soon.  I know what I think it should be; now I have to persuade my more timid colleagues!  
     - PERLE ICRADA: after about a year, the documents have been returned by the French side and are now with DOE.  I do have a concern that with the recent losses in the SRF R&D Department, we may have problems fulfilling our intended scope.  This will come up in earnest when the DOE signs the ICRADA.  after about a year, the documents have been returned by the French side and are now with DOE.  I do have a concern that with the recent losses in the SRF R&D Department, we may have problems fulfilling our intended scope.  This will come up in earnest when the DOE signs the ICRADA.  
     - I received an invitation to be a Technical Program Committee member for the International Conference on Accelerators for Research and Sustainable Development to be held at the IAEA headquarters in Vienna, Austria, May 23-27, 2022.  I advertised this widely, including Stuart (current Chair of ICFA), who suggested that I also send it to Thomas Roser as the Chair of the ICFA Panel on Sustainable Accelerators and Colliders, which I did.  Thomas noted that ICFA was not an “invited organization” and I initiated contacts so that ICFA would be included ion the conference.                        
   Next two weeks (Aug 16 - Aug 27)  
     - Isotopes: Loida, Adam and I will continue with the expanded search for medically interesting isotopes.  I have written up the first part, which enabled me to check on the computer output and analyze the results in detail.  This resulted in removing four of the new pathways for different reasons.  Adam Stavola is now working on getting Lila’s code working and will help to integrate it with Loida’s code.  I have been preparing a set of input parameters adapted to the cases of gamma, neutron, proton and deuteron.  I am still looking for accelerators that use alpha particles for producing isotopes.  The only example I have found is the 540 MeV cyclotron at TRIUMF.  Since the DOE-ONP Isotope program is not funding this, I guess I can analyze a “foreign” accelerator in the interstate’s of completeness.     
     - ERL: The ERL sub-Panel and ERL Roadmap panel will ramp up activity after the summer vacations.  At the second meeting of the ERL sub-Panel, , Kaoru Yokoya presented a first look at the luminosity of the ERLC.  He was quickly interrupted by Reinhard Brinkman who pointed out that we cannot consider the linac and damping rings separately.  Because the electrons and positrons are returned to the damping rings, damped over 400 turns, and then reused, we have to consider the whole facility as a kind of loop.  So we need the momentum compaction factor, transverse tune, chromaticity, synchrotron frequency, etc.  I wrote an email to Valery Telnov, got it approved by the members of the sub-Panel, and sent it to Telnov asking if he had considered this and asking if he could supply any additional input.     
     - Lila and Loida: I am advising both of them for their graduate studies.  Lila wishes to pursue medical physics and I put her in contact with Thia Keppel and Ethan Balkin (who was a medical physicist at the University of Washington before moving to the DOE-ONP Isotope program).  Loida wishes to pursue accelerator physics, and I am helping her choose a University.  Coming from Puerto Rico, she hates the cold, which does limit her options!  
     - I will be away a couple of days at the end of next week - needed to reduce my hours to 75%!