Computing the Time-Averaged Nuclide Inventory Using the Chebyshev Rational Approximation Method

Charles Whitmer; George Zimmerman

doi:dx.doi.org/10.1080/00295639.2025.2526955

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Home / Publications / Journals / Nuclear Science and Engineering / Volume 200 / Number 6

Computing the Time-Averaged Nuclide Inventory Using the Chebyshev Rational Approximation Method

Charles Whitmer, George Zimmerman

Nuclear Science and Engineering / Volume 200 / Number 6 / June 2026 / Pages 1455-1469

Research Article / dx.doi.org/10.1080/00295639.2025.2526955

Received:March 24, 2025

Accepted:June 24, 2025

Published:April 28, 2026

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Articles are hosted by Taylor and Francis Online.

The Chebyshev Rational Approximation Method (CRAM) algorithm has become the method of choice for modern nuclear depletion calculations. A simple modification of the CRAM yields not only depleted nuclide amounts but also time-averaged nuclide amounts, with little additional calculation cost.