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Accession Number N20130009742
Title Faster Heavy Ion Transport for HZETRN.
Publication Date Feb 2013
Media Count 20p
Personal Author T. C. Slaba
Abstract The deterministic particle transport code HZETRN was developed to enable fast and accurate space radiation transport through materials. As more complex transport solutions are implemented for neutrons, light ions (Z < 2), mesons, and leptons, it is important to maintain overall computational efficiency. In this work, the heavy ion (Z > 2) transport algorithm in HZETRN is reviewed, and a simple modification is shown to provide an approximate 5x decrease in execution time for galactic cosmic ray transport. Convergence tests and other comparisons are carried out to verify that numerical accuracy is maintained in the new algorithm.
Keywords Convergence
Extraterrestrial radiation
Galactic cosmic rays
Heavy ions
Light ions
Radiation transport

Source Agency National Aeronautics and Space Administration
NTIS Subject Category 54C - Astrophysics
Corporate Author National Aeronautics and Space Administration, Houston, TX. Lyndon B. Johnson Space Center.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1319
Contract Number N/A

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