Differences in shots with high and low neutron yield production in mega-ampere plasma focus discharges
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00382917" target="_blank" >RIV/68407700:21230/25:00382917 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0246587" target="_blank" >https://doi.org/10.1063/5.0246587</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0246587" target="_blank" >10.1063/5.0246587</a>
Alternative languages
Result language
angličtina
Original language name
Differences in shots with high and low neutron yield production in mega-ampere plasma focus discharges
Original language description
The paper presents a comparison of shots with high and low neutron yield at deuterium filling. Shots with high neutron yield are characterized by a higher energy produced hard x rays and neutrons, a larger volume of plasmoid-like compact structure, and lower plasma density in the pinched column. The discrepancy was interpreted by different magnetic energies stored in the pinched column. The model of distribution of magnetic energy in a plasmoid assumes the existence of a poloidal component of magnetic field in the plasma, the formation of compact structures with closed poloidal and toroidal current components, filamentary distribution of the current, and development of MHD instabilities along the filaments. The model meets the characteristics of observed sources of fast deuterons, such as submillimeter dimensions, various directions of path with narrow directivity, and radial and azimuthal configuration of spots. The presented mechanism of acceleration of fast deuterons is based on the model of magnetic reconnection, in which part of the disappearing magnetic field induces a strong electric field sufficient for obtaining hundreds of keV energy.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/GA23-04679S" target="_blank" >GA23-04679S: The study of z-pinch physics with novel diagnostic methods using fast ions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICS OF PLASMAS
ISSN
1070-664X
e-ISSN
1089-7674
Volume of the periodical
32
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
1-7
UT code for WoS article
001450452500002
EID of the result in the Scopus database
2-s2.0-105000516723