Welcome to SCALE

SCALE is a comprehensive modeling and simulation suite for nuclear safety analysis and design developed and maintained by Oak Ridge National Laboratory under contract with the U.S. Nuclear Regulatory Commission, U.S. Department of Energy, and the National Nuclear Security Administration to perform reactor physics, criticality safety, radiation shielding, and spent fuel characterization for nuclear facilities and transportation/storage package designs.

SCALE 6.2 is Now Available!

SCALE 6.2 represents one of the most comprehensive revisions in the history of SCALE, providing several new capabilities and significant improvements in many existing features.

New capabilities include

Enhanced capabilities include

The user documentation for SCALE has also been substantially updated and reorganized. More details are available in the newsletter, and updated training courses are scheduled.

SCALE Newsletter Number 48, Spring 2016, is now available.
Upcoming SCALE Training Courses

SCALE Training

Order SCALE 6.2 from RSICC

Order SCALE 6.2 from NEA Data Bank

Order SCALE 6.2 from RIST/NUCIS

Known Issues with SCALE 6.1

Obtain Registration Key for SCALE 5 or 5.1

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