Workshop on Transients: Community Input Workshop

Chair: Charles Greenfield (General Atomics)
Co-Chair: Raffi Nazikian (Princeton Plasma Physics Laboratory)
DOE FES Liaison: Mark Foster

New! The agenda has been posted here!


NEWS FLASH! As of 11PM EDT on March 25, we have received 32 requests to speak. Please see the list below (and let me know if your request is missing). It is my intention to allocate 20 minutes to each of these submissions (approx. 2/3 presentation, 1/3 Q&A). If additional requests come in I will try to accommodate them, but I won't make any guarantees.

Announcement of Community Input Workshop and Call for White Papers

There are two ways that you can have input into this process. Each requires some rapid action on your part:

  • Speak at our video Community Input Workshop on March 30-April 1. I apologize in advance that since we cannot anticipate the number of people who will request time I cannot guarantee everybody will be able to speak - but I will try. If you would like to speak, please request a slot here. Make sure you check the "Talk" box and select "Transients (pre-workshop, March 30-April 1)" from the pulldown menu. There is a button to upload your talk, but that's optional - we will make arrangements for your talks to be uploaded when we get closer to the meeting.
  • Submit a 2-page white paper by April 15. Your white papers can be uploaded using the same form. Make sure you check the "Whitepaper" box and select "Transients (pre-workshop, March 30-April 1)" from the pulldown menu. It is important that you be very clear and concise in your white paper, as the sub-panels will no doubt have a lot of input to deal with.
  • Another opportunity will be the main Transients Workshop being held in June. More information will come later, but you should realize that now is the time to get your ideas into the sub-panels; June may be too late, especially if you want to bring up something that hadn't already been considered.

How your input will be used:

The sub-panels have been asked to propose research tasks considering ideas from the community and from within the sub-panel membership. Since it is important that we provide FES with some focus in our report, not every white paper's ideas can be reflected in the proposed research. I apologize in advance if your ideas are not included in our report (all white papers will be listed in an appendix and will be displayed on the USBPO website).

It is suggested that your input focus on providing the following information to be of maximum utility in preparing our report:

  1. What is the proposed research?
  2. Describe the background of your proposal
    • Progress since ReNeW
    • Opportunities; national and international context
  3. Anticipated results and impact on future activities

Return to top

Participation Instructions

  • Join from PC, Mac, iOS or Android:
  • Or join by phone:
    • +1 (415) 762-9988 or +1 (646) 568-7788 (US Toll)
    • Meeting ID: 858 455 3686
    • International numbers available:
  • Or join from a H.323/SIP room system:
    • Dial: (US East) or (US West)
    • Meeting ID: 858 455 3686

As a courtesy, I include the following room information for those of you at some of our larger institutions. If your institution is not listed here, it is because I have not been informed of your arrangements.

March 3015-019B252NW17-218
March 3113-301B252NW17-218
April 113-215B318NW17-132

Return to top

Instructions for speakers and white paper authors

  • I am tentatively planning on assigning 20 minute slots to each contributed talk. You should plan on speaking for no more than about 2/3 of your time. The rest will be reserved for questions and discussion.
  • Please send me your slides before the session where you will speak. PDF is preferred, but PowerPoint is acceptable. Note that I intend to post the presentations on this web site unless you request otherwise. Regardless, your slides will be made available to the appropriate sub-panels for reference during their deliberations.
  • I prefer that you show your slides yourself, but if needed I can show them from my end.
  • Speakers and authors should strive for clarity and brevity - you want to give the sub-panels information they can use. We suggest the following elements to be included:
    1. What is the proposed research?
    2. Describe the background of your proposal
      • Progress since ReNeW
      • Opportunities; national and international context
    3. Anticipated results and impact on future activities

Return to top

Tentative agenda (updated continuously)

A detailed agenda will be posted on Friday, March 27. Below is a "skeleton version:"

Monday, March 30, 2015 starting at 8:30 AM PDT/11:30AM EDT

  • C. Greenfield and/or R. Nazikian and/or M. Foster: Introduction
  • Each of the sub-panel leaders will give a status report on what they've done so far and their plans to prepare for the June workshop
  • Begin community input talks

Tuesday, March 31, 2015 starting at 8:30 AM PDT/11:30AM EDT

  • A. Loarte: Research needs for ITER: ELMs
  • J. Snipes: Research needs for ITER: Disruptions
  • Continue community input talks

Wednesday, April 1, 2015 starting at 8:30 AM PDT/11:30AM EDT

  • Continue community input talks if/as needed

Return to top

We have received the following requests for time to speak (note that this page is not updated in real-time; if you submitted your request in the last 24 hours it may not be shown here)

If you have not yet requested time, you may do it here. Please remember that the deadline for requests is close of business Wednesday, March 25!

Note that an early version of the submission form asked you to type in the name of the sub-panel to receive your input. Many (most) of you typed in names of nonexistent sub-panels. We will do the best we can placing your talk in the right session.

1Leonid ZakharovTokamak MHD (TMHD) - the theory/simulation model of tokamak VDE disruptionsTheory, diagnostics, simulations of VDE disruptions
2Richard Buttery, David HumphreysIntegrated Strategy for Robustly Stable Tokamak Fusion PlasmasDisruption avoidance. Disruption prediction.
3John Ferron, N. Eidietis, M. Lanctot, C. Paz-Soldan, F. VolpeAnticipating Disruptions - Real Time Sensing and PredictionDisruption prediction, disruption avoidance
4A.Bortolon, R.Maingi, G.Jackson, R.Nazikian, D.Mansfield, L.RoquemoreELM pacing by injection of low-Z impurity pelletsPanel 2: Avoiding deleterious effects of ELMs in high performance plasmas
5F. Turco, G. Navratil, J. Hanson, C. Paz-Soldan, A. TurnbullThe issue of measuring and predicting the approach to instability in the zero torque ITER Baseline ScenarioDisruption avoidance
6C. HolcombHigh BetaN Steady-State Tokamak Development is the Best Strategy for Solving the Disruption ProblemDisruption avoidance
7Tom Jarboe and the HIT TeamNeed for self-organized plasma experiments Transients
8G. Wurden, T. Evans, J. Oertel, J. ColemanA new technique for Runaway Electron Population Characterization Disruptions, Disruption mitigation
9S.A.GalkinDPASS - Disruption Prediction And Simulation Suite of codes for Tokamaks and ITERUnspecified
10M. W. Bongard, R. J. Fonck, G. R. McKee, J. A. Reusch, D. R. SmithMulti-scale validation of nonlinear ELM physicsELM Suppression or mitigation; ELM-free scenarios; ELM Pacing
11D. Whyte et al.High Magnetic Field approach for Transient Avoidance"Preventing device damage from disruptions" + "Avoiding deleterious effects of ELMs in high performance plasmas"
12Amanda Hubbard and co-authors TBDResearch to understand and extrapolate the I-mode regimeNaturally ELM-free operating scenarios
13V.A. IzzoDevelopment of Validated Predictive Simulations for Disruption MitigationDisruption Mitigation
14T.E. EvansStatus and future needs for ELM control using resonant magnetic perturbationsELM Suppression or Mitigation With Resonant Magnetic Perturbations
15H. StraussNonlinear MHD Disruption SimulationsDisruption - General
16R. Maingi, J. Canik, S. Gerhardt, J. MenardEnhanced pedestal H-modes and Lithium-enhanced H-modes as ELM-free regimesNaturally ELM-free Operating Scenarios
17F. PoliThe role of integrated modeling in disruption avoidance and profile control developmentDisruption Avoidance
18J-W. Ahn, R. Maingi, K. Gan, T.K. Gray, J.M. Canik, A.G. McLeanTransient heat flux problem with ELMs in NSTX and implication for ITERELMs – General, ELM Suppression or Mitigation With Resonant Magnetic Perturbations
19X.Q. Xu, B.I. Cohen, A.M. Dimits, I. Joseph, T.D. Rognlien, D.D. Ryutov, M.V. UmanskyPredictive Understanding of ELMs in Tokamak Fusion DevicesELMs - General
20Zhirui Wang, Jonathan Menard, Yueqiang Liu, Jong-Kyu ParkThe drift kinetic and rotational effects on determining and predicting the macroscopic MHD instabilityDisruption Prediction
21J.P. Levesque, J. Bialek, P.J. Byrne, C.J. Hansen, P.E. Hughes, M.E. Mauel, G.A. Navratil, Q. Peng, D.J. Rhodes and C.C. StoaferEffects of the Material and 3D Magnetic Boundary on the Control of Transients in TokamaksNone specified
22J.-K. Park, J. M. Canik, R. Maingi, J. E. Menard, T. E. Evans, R. NazikianFilling the gaps in physics understanding of resonant magnetic perturbations with spherical tokamaksELM Suppression or Mitigation With Resonant Magnetic Perturbations
23D. Q. Hwang, D. Buchenauer, R. D. Horton, R. W. EvansHIGH-Z COMPACT TOROIDS FOR RUNAWAY ELECTRON MITIGATIONDisruption Mitigation
24D. del-Castillo-Negrete, D. Spong, and J. HarrisRunaway electrons: open theory/modeling questions, needs and opportunities.Disruption – General, Disruption Mitigation
25B.E. Chapman and the MST groupOpportunities to advance the physics of transients with MST tokamak and RFP plasmasDisruption - General
26Amiya SenControl of Major Disruptions in ITER via modulated ECHNone specified
27M. T. Kotschenreuther, S. Mahajan, B. Covele, P. ValanjuImplications of recent SOL width projections and Tungsten sputtering on tolerable ELM sizeELMs - General
28Egemen KolemenAdaptive ELM Control Development for ITER ELM Suppression or Mitigation With Resonant Magnetic Perturbations
29L.R. Baylor, N. CommauxOptimal Trajectory for Disruption Mitigation with Shattered Pellet InjectionDisruption – General, Disruption Mitigation
30Ilon Joseph, et alPhysics Understanding of Resonant Magnetic PerturbationsELM Suppression or Mitigation With Resonant Magnetic Perturbations
31R. Raman, S.P Gerhardt, J.E. Menard, T.R Jarboe, M. OnoOutstanding issues for ITER and FNSF, NSTX-U MGI and EPI, plans and key contributions to mitigationDisruption Mitigation
Post-deadline requests
32L R BaylorH-mode Threshold Impact by ELM PacingELM Pacing
33R. Maingi, J. Canik, S. Gerhardt, J. MenardThe need for research on a broad range of ELM pacing techniquesELM Pacing
34J A Snipes, P de Vries, M LehnenITER R&D Needs for Disruption Prediction, Avoidance, and MitigationDisruption – General, Disruption Prediction, Disruption Avoidance, Disruption Mitigation
35A.M. Garofalo, K.H. Burrell, B.A. Grierson, W.M. SolomonInherently ELM Stable High Performance Regimes Through Quiescent H-modeELMs – General, Naturally ELM-free Operating Scenarios
36N.W. EidietisMitigating disruptions in ITER and beyondDisruption Mitigation
37Dylan BrennanOutstanding theory and modeling needs for validated predictive modeling of disruptionsDisruption – General, Disruption Prediction

(submissions listed in order received)

Return to main Transients Workshop page

Return to top

Privacy Policy
Who's in the USBPO News and Events References and Links Media Forums Contact Us