Simons Hour Talks

Date / Time Speaker Topic Title
Sep 16, 2021
8:00-9:00 EDT
A. Giuliani




F. Law

Optimization For Quasi-Symmetry on Surfaces in Single-Stage Coil Design
In this talk, we'll give an update on our single-stage approach to optimizing for quasi-symmetry on surfaces. Previously, we've presented our new technique for computing surfaces in Boozer coordinates, currently available in SIMSOPT.  In this talk, we'll give addition details and describe how these surfaces can be used in a gradient-based approach to optimize for quasi-symmetry.
Multifidelity Monte Carlo Estimation of Energetic Particle Confinement in Stellarators
In the design of Stellarators, energetic particle confinement is a critical point of concern which remains challenging to analyze from a numerical point of view. Due to the absence of fully reliable proxy functions in quantifying the energetic particle confinement properties of magnetic configurations, studies are typically based on a standard Monte Carlo analysis.
(Video Recording of Talk)
Sep 2, 2021
8:00-9:00 EDT
N. Soto Quasisymmetric Magnetic Fields in Asymmetric Toroidal Domains
(Video Recording of Talk)
Aug  5, 2021
8:00-9:00 EDT
M. Landreman Magnetic Fields With Excellent Quasisymmetry Throughout a Volume
(Video Recording of Talk)
 July 22, 2021
8:00-9:00 EDT
S. Henneberg Representing The Plasma Boundary in Stellarator Optimization
(Video Recording of Talk)
July 8, 2021
8:00-9:00 EDT
R. White Particle Resonances in Toroidal Plasmas
(Video Recording of talk)
Jun 24, 2021
8:00-9:00 EDT
D. Peralta-Salas MHD Equilibria with Non-Constant Pressure in Nondegenerate Toroidal Domains
(Video Recording of talk)
May 27, 2021
8:00-9:00 EDT
A. Carlton-Jones
E. Stenson
Computing The Shape Gradient of Stellarator Coil Complexity With Respect to the Plasma Boundary (Video recording of Carlton-Jonestalk)
Computational Studies of Mu-Breaking in a Magnetic Dipole and Other Simple Coil Configurations (Video recording of Stenson talk)
Apr 29, 2021
8:00-9:00 EDT
M. Landreman Update on SIMSOPT
(Video recording of Landreman talk)
Apr 15, 2021
8:00-9:00 EDT
Y-M. Huang Numerical Approach to ∂-function Current Sheets Arising From Resonant Magnetic Perturbations
(Video recording of Huang talk)
Apr 1, 2021
2:00-3:00 EDT
A. Geraldini Adjoint Calculation of Magnetic Island Width Sensitivity
(Video recording of Geraldini talk)
Mar 18, 2021
2:00-3:00 EDT
R. MacKay / 
J. Burby
Isodrastic Magnetic Fields
(Video recording of MacKay talk)
Mar 4, 2021
2:00-3:00 EST
J. Lion Generalization of the Systems Code PROCESS to Stellarators
Feb 18, 2021
2:00-3:00 EST
F. Wechsung Single-Stage Gradient-Based Stellarator Coil Design
Feb 4, 2021
2:00-3:00 EST
S. Henneberg Algorithms for Combined Plasma and Coil optimization
Jan 7, 2021
2:00-3:00 EST
N. Duignan A Presymplectic View of Magnetic Fields
Dec 11, 2020
9:10-10:00 EST
W. Sengupta Obtaining exact quasisymmetry on a single flux surface: a near-surface expansion approach
Nov 20, 2020
9:10-10:00 EST
A. Guiliani Single-stage gradient-based stellarator coil design:
Optimization for near-axis quasi-symmetry
Oct 30, 2020
9:20-10:00 EDT
E. Rodriguez Avoiding the problem of overdetermination in quasisymmetric near-axis
Oct 2, 2020
9:20-10:00AM EDT
J. -F. Lobsien Stochastic Stellarator Coil Optimization
July 24, 2020
9:30-10:00AM EDT
N. McGreivy Finite-Build Stellarator Coil Design & Automatic Differentiation
June 26, 2020
9:20-10:00AM EDT
T. Pedersen Introduction to (Stellarator) Divertors
June 12, 2020
9:20-10:00AM EDT
J. Burby Grad-Shafranov Equation For Non-Axisymmetric MHD Equilibria (slides) (paper)
May 29, 2020
9:00-9:20AM EDT
A. Bhattacharjee Summer School 2020 Schedule
May 29, 2020
9:20-10:00AM EDT
R. Granetz Applying High Temperature Superconductor Technology to Stellarators
May 15, 2020
9:00-10:00AM EDT
B. Khesin Madelung Transform and Binormal Flows
in the Euler Hydrodynamics
May 1, 2020
9:05-9:30AM EDT
E. Rodriguez Constructing Quasisymmetry
May 1, 2020
9:35-10:00AM EDT
N. Kallinikos Approximate Quasisymmetry
Apr. 17, 2020
 9:00-10:00AM EDT
S. Glas Optimization Under Uncertainty
Apr. 6, 2020
 3:00‑4:00PM EDT
D. Ginsberg Quasisymmetric Equilibria
Mar. 23, 2020
 3:00‑4:00PM EDT
P. Helander Stellarators with Permanent Magnets
Mar. 9, 2020
 3:00‑4:00PM ET
A. Bader Stellarator Optimization in Practice
And Where We Can Improve
Mar. 2, 2020
 3:00‑4:00PM ET
D. Malhotra Integral Equation Methods for Calculating
Stepped-Pressure Equilibrium in Stellarators
Feb. 24, 2020
 3:00‑4:00PM ET
A. Giuliani Adjoint-Based Vacuum-Field
Stellarator Optimization
Feb. 10, 2020
 3:00‑4:00PM ET
E. Paul Efficient Stellarator Shape Optimization
and Sensitivity Analysis
Jan. 27, 2020
 3:00‑4:00PM ET
R. Dewar and
Z. Qu
MRxMHD With Flow
Jan. 10, 2020
 9:00‑10:00AM ET
M. Landreman SIMSOPT phase 1: MANGO
Dec. 13, 2019
 9:00‑10:00AM ET
F. Hindenlang GVEC: A newly developed 3D ideal MHD
Galerkin Variational Equilibrium Code
Nov. 29, 2019
 9:00‑10:00AM ET
 J. Loizu Direct Prediction of Nonlinearly Saturated
Tearing Modes with SPEC
Nov. 15, 2019
 9:00‑10:00AM ET
B. Faber Stellarator Optimization at the
University of Wisconsin-Madison
Nov. 8, 2019
 8:30‑9:30AM ET
  Special Discussion on SIMSOPT
Nov. 1, 2019
 9:00‑10:00AM ET
R. Jorge Near-Axis Expansion Framework at Arbitrary
Order in the Distance to the Magnetic Axis
Sep. 20, 2019
 9:00‑10:00AM ET
Dhariya Malhotra Higher-Order Integration for Singular
Integrals in Magnetostatics
Sep. 6, 2019
 9:00‑10:00AM ET
Allen Boozer Curl-free Magnetic Fields for Stellarator Optimization
Aug. 5, 2019
 3:00‑4:00PM ET
David Bindel Surrogate Optimization
May 13, 2019
 3:00‑4:00PM ET
Georg Stadler Optimization
Apr. 29, 2019
 3:00‑4:00PM ET
Amitava Bhattacharjee Summer School Schedule
Mar. 18, 2019
 3:00‑4:00PM ET
Amitava Bhattacharjee Team meeting in PCTS, 
Annual Meeting at Simons Foundation