Merging the CEM2k and LAQGSM Codes with GEMINI

Journal Article · Tue May 24 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1945233· OSTI ID:20722407

Baznat, M I; Gudima, K K ^[1]; Mashnik, S G; Prael, R E ^[2]

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1. Institute of Applied Physics, Academy of Science of Moldova, Chisinau, MD-2028 (Moldova, Republic of)
2. Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

An improved version of the Cascade-Exciton Model (CEM) of nuclear reactions contained in the code CEM2k and the Los Alamos version of the Quark-Gluon String Model (LAQGSM) are merged with the well-known sequential-binary-decay model GEMINI by Charity. We present some results on proton-induced fragmentation, fission-product yields and on particle spectra predicted by these extended versions of CEM2k and LAQGSM. We show that merging CEM2k and LAQGSM with GEMINI allows us to describe many fission and fragmentation reactions in addition to the spallation and evaporation reactions which are already described well by these codes. Nevertheless, the current version of GEMINI merged with CEM2k and LAQGSM does not provide a completely satisfactory description of some complex-particle spectra, fragment emission, and spallation yields for some reactions, and is not yet a universal tool for applications. Our results show that GEMINI contains a powerful model to describe evaporation/fission/fragmentation reactions and often provides better results when compared to other models, especially for emission of heavy fragments from reactions on medium-heavy nuclei (where most other models simply fail), but it must be further extended and improved in order to properly describe arbitrary reactions.

• OSTI ID: 20722407
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 769; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
EVAPORATION MODEL
EXCITON MODEL
FISSION
FISSION PRODUCTS
GLUONS
HEAVY NUCLEI
ION EMISSION
L CODES
NUCLEAR CASCADES
NUCLEAR DECAY
NUCLEAR FRAGMENTATION
NUCLEAR REACTION YIELD
PROTON REACTIONS
PROTON-NUCLEON INTERACTIONS
PROTONS
QUARKS
SPALLATION
STRING MODELS