Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries

Guojun Hu; William Wieselquist

Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The SCALE 6.2 code suite includes a set of reactor libraries that can be used in the depletion/decay code ORIGEN to model depletion of reactor fuel from a wide range of reactor systems. The size of the full set of library data is easily 10 GB, which in addition to other continuous energy cross-section data libraries takes most of the memory space in a SCALE release. In this work, we developed a monotone cubic spline interpolation algorithm and knot reduction algorithm to reduce the required number of interpolation points without loss of accuracy. Tests on real data libraries show that the monotone cubic spline algorithm works faster and more accurately than the previous cubic spline algorithm, and knot reduction reduces storage requirements to 45% of the original library size, a reduction of almost 5 GB from the original 11 GB library.

Original language	English
Title of host publication	Physics of Reactors 2016, PHYSOR 2016
Subtitle of host publication	Unifying Theory and Experiments in the 21st Century
Publisher	American Nuclear Society
Pages	308-317
Number of pages	10
ISBN (Electronic)	9781510825734
State	Published - 2016
Externally published	Yes
Event	Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016 - Sun Valley, United States Duration: May 1 2016 → May 5 2016

Publication series

Name	Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century
Volume	1

Conference

Conference	Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016
Country/Territory	United States
City	Sun Valley
Period	05/1/16 → 05/5/16

Keywords

Cubic Spline
Knot Reduction
ORIGEN

Cite this

@inproceedings{d78a0ae3584442f0972d38848662a67e,

title = "Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries",

abstract = "The SCALE 6.2 code suite includes a set of reactor libraries that can be used in the depletion/decay code ORIGEN to model depletion of reactor fuel from a wide range of reactor systems. The size of the full set of library data is easily 10 GB, which in addition to other continuous energy cross-section data libraries takes most of the memory space in a SCALE release. In this work, we developed a monotone cubic spline interpolation algorithm and knot reduction algorithm to reduce the required number of interpolation points without loss of accuracy. Tests on real data libraries show that the monotone cubic spline algorithm works faster and more accurately than the previous cubic spline algorithm, and knot reduction reduces storage requirements to 45% of the original library size, a reduction of almost 5 GB from the original 11 GB library.",

keywords = "Cubic Spline, Knot Reduction, ORIGEN",

author = "Guojun Hu and William Wieselquist",

year = "2016",

language = "English",

series = "Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century",

publisher = "American Nuclear Society",

pages = "308--317",

booktitle = "Physics of Reactors 2016, PHYSOR 2016",

note = "Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016 ; Conference date: 01-05-2016 Through 05-05-2016",

}

Hu, G & Wieselquist, W 2016, Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries. in Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century, vol. 1, American Nuclear Society, pp. 308-317, Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016, Sun Valley, United States, 05/1/16.

Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries. / Hu, Guojun; Wieselquist, William.
Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century. American Nuclear Society, 2016. p. 308-317 (Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries

AU - Hu, Guojun

AU - Wieselquist, William

PY - 2016

Y1 - 2016

N2 - The SCALE 6.2 code suite includes a set of reactor libraries that can be used in the depletion/decay code ORIGEN to model depletion of reactor fuel from a wide range of reactor systems. The size of the full set of library data is easily 10 GB, which in addition to other continuous energy cross-section data libraries takes most of the memory space in a SCALE release. In this work, we developed a monotone cubic spline interpolation algorithm and knot reduction algorithm to reduce the required number of interpolation points without loss of accuracy. Tests on real data libraries show that the monotone cubic spline algorithm works faster and more accurately than the previous cubic spline algorithm, and knot reduction reduces storage requirements to 45% of the original library size, a reduction of almost 5 GB from the original 11 GB library.

AB - The SCALE 6.2 code suite includes a set of reactor libraries that can be used in the depletion/decay code ORIGEN to model depletion of reactor fuel from a wide range of reactor systems. The size of the full set of library data is easily 10 GB, which in addition to other continuous energy cross-section data libraries takes most of the memory space in a SCALE release. In this work, we developed a monotone cubic spline interpolation algorithm and knot reduction algorithm to reduce the required number of interpolation points without loss of accuracy. Tests on real data libraries show that the monotone cubic spline algorithm works faster and more accurately than the previous cubic spline algorithm, and knot reduction reduces storage requirements to 45% of the original library size, a reduction of almost 5 GB from the original 11 GB library.

KW - Cubic Spline

KW - Knot Reduction

KW - ORIGEN

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M3 - Conference contribution

AN - SCOPUS:84992135506

T3 - Physics of Reactors 2016, PHYSOR 2016: Unifying Theory and Experiments in the 21st Century

SP - 308

EP - 317

BT - Physics of Reactors 2016, PHYSOR 2016

PB - American Nuclear Society

T2 - Physics of Reactors 2016: Unifying Theory and Experiments in the 21st Century, PHYSOR 2016

Y2 - 1 May 2016 through 5 May 2016

ER -

Optimal knot reduction in cubic spline interpolation of ORIGEN's reactor libraries

Abstract

Publication series

Conference

Keywords

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Cite this