Issues

• ExactCFbend linear map return yields nan

  bugcomponent: elementstracking: envelope
  BLAST-ImpactX/impactx#1663 · Filter by author cemitch99 opened on Sep 16, 2026 · Advanced Methods (SciDAC-5)
  

• Analytic Gaussian space-charge models push the beam centroid

  component: space charge
  BLAST-ImpactX/impactx#1662 · Filter by author nilanjan-rep opened on Sep 15, 2026 · Advanced Methods (SciDAC-5)
  1

  

• Faster 2D Depositions

  component: space chargePerformance optimization
  BLAST-ImpactX/impactx#1657 · Filter by author ax3l opened on Sep 8, 2026 · Advanced Methods (SciDAC-5)

• Treatment of quad fringe fields with MAD-X lattice parsing

  component: lattice file parserenhancement
  Feature

  BLAST-ImpactX/impactx#1651 · Filter by author cemitch99 opened on Sep 3, 2026 · Advanced Methods (SciDAC-5)
  

• Lattice Optimization: PipeAperture Application

  component: elementscomponent: lattice optimizationPerformance optimizationtracking: particles
  BLAST-ImpactX/impactx#1650 · Filter by author ax3l opened on Sep 3, 2026 · Advanced Methods (SciDAC-5)

• Support Vico-Greengard-Ferrando algorithm in 3D PIC solver

  component: space chargeenhancement
  BLAST-ImpactX/impactx#1638 · Filter by author nikitakuklev opened on Aug 28, 2026
  

• Use amrex::RandomNormal where appropriate

  component: distributionsPerformance optimization
  BLAST-ImpactX/impactx#1631 · Filter by author ax3l opened on Aug 24, 2026 · Advanced Methods (SciDAC-5)

• Faster symplectic ChrQuad: hoist per-particle transcendentals via a TEAPOT-style drift-kick split

  component: elementsPerformance optimizationtracking: particles
  BLAST-ImpactX/impactx#1626 · Filter by author ax3l opened on Aug 23, 2026 · Advanced Methods (SciDAC-5)

• Synmadx Fixes

  bug: affects latest releasebugcomponent: pythoncomponent: third party
  BLAST-ImpactX/impactx#1584 · Filter by author ax3l opened on Aug 3, 2026
  

• ExactDrift/ExactQuad maps lose ~40 bits computing small corrections via 1/sqrt(1-eps) - 1 cancellation

  component: elementsprecision
  BLAST-ImpactX/impactx#1576 · Filter by author ax3l opened on Jul 27, 2026

• Unexpected t-update in ChrAcc when accelerating field is small

  bug: affects latest releasebugcomponent: elements
  BLAST-ImpactX/impactx#1573 · Filter by author cemitch99 opened on Jul 26, 2026
  1

  

• Implement inverse fringe field maps

  component: elementscomponent: spin tracking
  BLAST-ImpactX/impactx#1562 · Filter by author cemitch99 opened on Jul 10, 2026 · FY26-27 LDRD: future colliders & light sources
  1

  

• add_n_particles MPI Improvements

  bug: affects latest releasebugcomponent: documentationcomponent: pythonPerformance optimization
  BLAST-ImpactX/impactx#1534 · Filter by author ax3l opened on Jun 26, 2026
  

• Longitudinal emittance not representable in single precision for near-degenerate distributions

  component: diagnosticsprecision
  BLAST-ImpactX/impactx#1485 · Filter by author ax3l opened on May 31, 2026

• Spin reversibility breaks down in single precision (strong-focusing elements)

  component: elementscomponent: spin trackingprecision
  BLAST-ImpactX/impactx#1484 · Filter by author ax3l opened on May 31, 2026 · FY26-27 LDRD: future colliders & light sources

• Exact symplectic maps (ExactCFbend, +multipole) do not close in single precision

  component: elementsprecision
  BLAST-ImpactX/impactx#1483 · Filter by author ax3l opened on May 31, 2026
  1

• Chromatic elements lose longitudinal precision in single precision

  component: elementsprecision
  BLAST-ImpactX/impactx#1482 · Filter by author ax3l opened on May 31, 2026
  1

• Eigenemittance diagnostic produces NaN in single precision

  component: diagnosticsprecision
  BLAST-ImpactX/impactx#1481 · Filter by author ax3l opened on May 31, 2026
  1

• PolygonAperture transmits particles outside the polygon in single precision

  component: elementsprecision
  BLAST-ImpactX/impactx#1480 · Filter by author ax3l opened on May 31, 2026 · Advanced Methods (SciDAC-5)

• Add active_once to BeamMonitor

  component: diagnostics
  BLAST-ImpactX/impactx#1470 · Filter by author egstern opened on May 18, 2026 · Advanced Methods (SciDAC-5)
  2

  

• Facility-Relevant In Situ Beam Diagnostics

  component: diagnostics
  BLAST-ImpactX/impactx#1466 · Filter by author ax3l opened on May 14, 2026 · Advanced Methods (SciDAC-5)

• Add -Wdouble-promotion

  installprecisionwarning
  BLAST-ImpactX/impactx#1464 · Filter by author ax3l opened on May 13, 2026
  

• "Unknown or unsupported type" errors in dashboard

  BLAST-ImpactX/impactx#1463 · Filter by author whl64 opened on May 12, 2026

• Units as Enum

  component: elements
  BLAST-ImpactX/impactx#1451 · Filter by author ax3l opened on May 4, 2026

• Improve SC/lattice map splitting

  component: space charge
  BLAST-ImpactX/impactx#1444 · Filter by author nikitakuklev opened on May 1, 2026 · Advanced Methods (SciDAC-5)
  1