Improved axial confinement in the open trap by the combination of helical and short mirrors

Standard

Improved axial confinement in the open trap by the combination of helical and short mirrors. / Sudnikov, Anton V.; Ivanov, Ivan A.; Inzhevatkina, Anna A. et al.

In: Journal of Plasma Physics, Vol. 90, No. 4, 905900405, 18.09.2024.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{4b57bd1e36f24e57be52bd485f3c7550,

title = "Improved axial confinement in the open trap by the combination of helical and short mirrors",

abstract = "The paper presents experimental results from the SMOLA device, which was built in the Budker Institute of Nuclear Physics for the verification of the helical mirror confinement idea. This concept involves active control of axial losses from the confinement zone in an open magnetic trap through the use of multiple mirrors that move in the plasma frame of reference. The discussed experiments focused on determining the cumulative effect of a helical mirror system in combination with a short segment of a stronger magnetic field. Combination of these two methods of axial flow suppression results in higher efficiency compared with each method individually. Different combinations of the mirrors were tested. The most effective flow suppression was observed if the short mirror was placed between the confinement region and the helical mirror. In this configuration, an effective mirror ratio of was achieved, along with a more than three-fold increase in plasma density within the confinement region. The possibility of a cumulative effect of different types of magnetic mirrors offers a way to improve the confinement performance of the reactor-grade mirror confinement devices.",

keywords = "plasma confinement, plasma devices, plasma flows",

author = "Sudnikov, {Anton V.} and Ivanov, {Ivan A.} and Inzhevatkina, {Anna A.} and Kozhevnikov, {Aleksey V.} and Postupaev, {Vladimir V.} and Tolkachev, {Mikhail S.} and Ustyuzhanin, {Viktor O.}",

year = "2024",

month = sep,

day = "18",

doi = "10.1017/S0022377824001132",

language = "English",

volume = "90",

journal = "Journal of Plasma Physics",

issn = "0022-3778",

publisher = "Cambridge University Press",

number = "4",

}

RIS

TY - JOUR

T1 - Improved axial confinement in the open trap by the combination of helical and short mirrors

AU - Sudnikov, Anton V.

AU - Ivanov, Ivan A.

AU - Inzhevatkina, Anna A.

AU - Kozhevnikov, Aleksey V.

AU - Postupaev, Vladimir V.

AU - Tolkachev, Mikhail S.

AU - Ustyuzhanin, Viktor O.

PY - 2024/9/18

Y1 - 2024/9/18

N2 - The paper presents experimental results from the SMOLA device, which was built in the Budker Institute of Nuclear Physics for the verification of the helical mirror confinement idea. This concept involves active control of axial losses from the confinement zone in an open magnetic trap through the use of multiple mirrors that move in the plasma frame of reference. The discussed experiments focused on determining the cumulative effect of a helical mirror system in combination with a short segment of a stronger magnetic field. Combination of these two methods of axial flow suppression results in higher efficiency compared with each method individually. Different combinations of the mirrors were tested. The most effective flow suppression was observed if the short mirror was placed between the confinement region and the helical mirror. In this configuration, an effective mirror ratio of was achieved, along with a more than three-fold increase in plasma density within the confinement region. The possibility of a cumulative effect of different types of magnetic mirrors offers a way to improve the confinement performance of the reactor-grade mirror confinement devices.

AB - The paper presents experimental results from the SMOLA device, which was built in the Budker Institute of Nuclear Physics for the verification of the helical mirror confinement idea. This concept involves active control of axial losses from the confinement zone in an open magnetic trap through the use of multiple mirrors that move in the plasma frame of reference. The discussed experiments focused on determining the cumulative effect of a helical mirror system in combination with a short segment of a stronger magnetic field. Combination of these two methods of axial flow suppression results in higher efficiency compared with each method individually. Different combinations of the mirrors were tested. The most effective flow suppression was observed if the short mirror was placed between the confinement region and the helical mirror. In this configuration, an effective mirror ratio of was achieved, along with a more than three-fold increase in plasma density within the confinement region. The possibility of a cumulative effect of different types of magnetic mirrors offers a way to improve the confinement performance of the reactor-grade mirror confinement devices.

KW - plasma confinement

KW - plasma devices

KW - plasma flows

UR - https://www.mendeley.com/catalogue/5b2e7e6a-d41e-3520-9a00-3482f117a1b0/

U2 - 10.1017/S0022377824001132

DO - 10.1017/S0022377824001132

M3 - Article

VL - 90

JO - Journal of Plasma Physics

JF - Journal of Plasma Physics

SN - 0022-3778

IS - 4

M1 - 905900405

ER -

ID: 60796308