SCALE Version Info#

This site provides dynamic updates on the development and discovery of issues in versions of the SCALE code system. For more general information on the SCALE code system, visit scale.ornl.gov.

Event Log#

Error

UTC 2024-01-02 18:08:08

A potentially high-impact error has been discovered in latest production release v6.3.1 related to the handling of white boundary conditions in KENO V.a.

See SDL-2023-090 for details including other versions affected.

Current 6.3 Production Series#

Note

v6.3 is the current production series, with latest release v6.3.1.

SCALE 6.3 (January 2023) contains the following key features.

  • Shift integration in CSAS, MAVRIC, TRITON and available standalone in OMNIBUS.

  • Continued ORIGEN modernization including sensitivity capability.

  • Polaris enhancements including runtime reduction.

  • Fulcrum 3D visualization.

  • Additional high burnup (HBU) and high assay low enriched uranium (HALEU) and accident tolerant fuel data.

  • Advanced reactor features, such as flow modeling, in TRITON.

Known Issues in Latest v6.3.1#

SCALE 6.3.1 was released in April 2023.

This known issues section was last updated on UTC 2024-01-03 20:14:28.

Significant Software Errors (SSE)#

These significant software errors (SSE) were identified in this release. An SSE has a high impact and is nigh undetectable to the average user. Declaring an issue an SSE requires concurrence from the SCALE leadership team and the ORNL division managing SCALE.

Id

Description

Release of fix

Fix link (blank if not fixed)

N/A

N/A

N/A

N/A

Potentially High-impact Errors (PHE)#

These potentially high-impact errors (PHE) were identified in this release. A PHE includes both SSE and other issues impactful enough to warrant communication to users. Users may be notified immediately of a PHE.

Id

Description

Release of fix

Fix link (blank if not fixed)

SDL-2023-090

SCALE 6.3.0/6.3.1 CSAS5-KENO with white boundary condition on curved surfaces has potential significant underprediction of keff

v6.3.2

N/A

SDL-2024-001

Error in STDCOMP mixture processing with inputs using both default and user-specified isotopics

v6.3.2

N/A