Abstract
The results of X-pinch experiments performed using a small-sized pulse generator are analyzed. The generator, capable of producing a 200-kA, 180-ns current, was loaded with an X-pinch made of four 35-μm-diameter aluminum wires. The analysis consists of a one-dimensional radiation magnetohydrodynamic simulation of the formation of a hot spot in an X-pinch, taking into account the outflow of material from the neck region. The radiation loss and the ion species composition of the pinch plasma are calculated based on a stationary collisional-radiative model, including balance equations for the populations of individual levels. With this model, good agreement between simulation predictions and experimental data has been achieved: the experimental and the calculated radiation power and pulse duration differ by no more than twofold. It has been shown that the x-ray pulse is formed in the radiative collapse region, near its boundary.
| Original language | English |
|---|---|
| Article number | 012703 |
| Journal | Physics of Plasmas |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2017 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Simulation of the radiation from the hot spot of an X-pinch. / Oreshkin, V. I.; Artyomov, A. P.; Chaikovsky, S. A.; Oreshkin, E. V.; Rousskikh, A. G.
In: Physics of Plasmas, Vol. 24, No. 1, 012703, 01.01.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Simulation of the radiation from the hot spot of an X-pinch
AU - Oreshkin, V. I.
AU - Artyomov, A. P.
AU - Chaikovsky, S. A.
AU - Oreshkin, E. V.
AU - Rousskikh, A. G.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - The results of X-pinch experiments performed using a small-sized pulse generator are analyzed. The generator, capable of producing a 200-kA, 180-ns current, was loaded with an X-pinch made of four 35-μm-diameter aluminum wires. The analysis consists of a one-dimensional radiation magnetohydrodynamic simulation of the formation of a hot spot in an X-pinch, taking into account the outflow of material from the neck region. The radiation loss and the ion species composition of the pinch plasma are calculated based on a stationary collisional-radiative model, including balance equations for the populations of individual levels. With this model, good agreement between simulation predictions and experimental data has been achieved: the experimental and the calculated radiation power and pulse duration differ by no more than twofold. It has been shown that the x-ray pulse is formed in the radiative collapse region, near its boundary.
AB - The results of X-pinch experiments performed using a small-sized pulse generator are analyzed. The generator, capable of producing a 200-kA, 180-ns current, was loaded with an X-pinch made of four 35-μm-diameter aluminum wires. The analysis consists of a one-dimensional radiation magnetohydrodynamic simulation of the formation of a hot spot in an X-pinch, taking into account the outflow of material from the neck region. The radiation loss and the ion species composition of the pinch plasma are calculated based on a stationary collisional-radiative model, including balance equations for the populations of individual levels. With this model, good agreement between simulation predictions and experimental data has been achieved: the experimental and the calculated radiation power and pulse duration differ by no more than twofold. It has been shown that the x-ray pulse is formed in the radiative collapse region, near its boundary.
UR - http://www.scopus.com/inward/record.url?scp=85009910018&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85009910018&partnerID=8YFLogxK
U2 - 10.1063/1.4974169
DO - 10.1063/1.4974169
M3 - Article
VL - 24
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 1
M1 - 012703
ER -