Abstract
The results of the experiments on the formation of a plasma emitter with small spatial dimensions for pulsed radiography in the soft X-ray spectral range are presented. Emitting hot plasma was formed as a result of compression of the plasma jet by a current pulse with amplitude Im = 215 kA and rise time Tfr = 200 ns. For the jet formation, we used a plasma gun based on the arc discharge (Im = 8.5 kA and Tfr = 6 μs) initiated by breakdown over the surface of a dielectric in vacuum. The experiments were carried out with aluminum, tin, copper, and iron plasma jets. A single emitter, i. e., point Z-pinch (PZ-pinch), was formed when an interelectrode gap of a high current generator of 1.3-1.5 mm was used. The smallest spatial dimensions of the emitting region were obtained with the use of aluminum and tin. For a tin jet, the diameter of the emitting region was 7 ± 2 μm and its height was 17 ± 2 μm. The emission pulse duration at half-height was 2-3 ns. The total emission yield per pulse in the spectral range 1. 56-1. 90 keV was 30-50 mJ for the aluminum pinch and 10-30 mJ for the tin pinch. The developed method makes it possible to carry out radiographic examination of microobjects (including biological ones) 1-1000 μm in thickness, with spatial (10-20 μm) and time (2-3 ns) resolution.
| Original language | English |
|---|---|
| Pages (from-to) | 1619-1627 |
| Number of pages | 9 |
| Journal | Technical Physics |
| Volume | 55 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Nov 2010 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Compact X-ray radiograph based on a plasma gun. / Rousskikh, A. G.; Shishlov, A. V.; Zhigalin, A. S.; Oreshkin, V. I.; Chaikovsky, S. A.; Baksht, R. B.
In: Technical Physics, Vol. 55, No. 11, 01.11.2010, p. 1619-1627.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Compact X-ray radiograph based on a plasma gun
AU - Rousskikh, A. G.
AU - Shishlov, A. V.
AU - Zhigalin, A. S.
AU - Oreshkin, V. I.
AU - Chaikovsky, S. A.
AU - Baksht, R. B.
PY - 2010/11/1
Y1 - 2010/11/1
N2 - The results of the experiments on the formation of a plasma emitter with small spatial dimensions for pulsed radiography in the soft X-ray spectral range are presented. Emitting hot plasma was formed as a result of compression of the plasma jet by a current pulse with amplitude Im = 215 kA and rise time Tfr = 200 ns. For the jet formation, we used a plasma gun based on the arc discharge (Im = 8.5 kA and Tfr = 6 μs) initiated by breakdown over the surface of a dielectric in vacuum. The experiments were carried out with aluminum, tin, copper, and iron plasma jets. A single emitter, i. e., point Z-pinch (PZ-pinch), was formed when an interelectrode gap of a high current generator of 1.3-1.5 mm was used. The smallest spatial dimensions of the emitting region were obtained with the use of aluminum and tin. For a tin jet, the diameter of the emitting region was 7 ± 2 μm and its height was 17 ± 2 μm. The emission pulse duration at half-height was 2-3 ns. The total emission yield per pulse in the spectral range 1. 56-1. 90 keV was 30-50 mJ for the aluminum pinch and 10-30 mJ for the tin pinch. The developed method makes it possible to carry out radiographic examination of microobjects (including biological ones) 1-1000 μm in thickness, with spatial (10-20 μm) and time (2-3 ns) resolution.
AB - The results of the experiments on the formation of a plasma emitter with small spatial dimensions for pulsed radiography in the soft X-ray spectral range are presented. Emitting hot plasma was formed as a result of compression of the plasma jet by a current pulse with amplitude Im = 215 kA and rise time Tfr = 200 ns. For the jet formation, we used a plasma gun based on the arc discharge (Im = 8.5 kA and Tfr = 6 μs) initiated by breakdown over the surface of a dielectric in vacuum. The experiments were carried out with aluminum, tin, copper, and iron plasma jets. A single emitter, i. e., point Z-pinch (PZ-pinch), was formed when an interelectrode gap of a high current generator of 1.3-1.5 mm was used. The smallest spatial dimensions of the emitting region were obtained with the use of aluminum and tin. For a tin jet, the diameter of the emitting region was 7 ± 2 μm and its height was 17 ± 2 μm. The emission pulse duration at half-height was 2-3 ns. The total emission yield per pulse in the spectral range 1. 56-1. 90 keV was 30-50 mJ for the aluminum pinch and 10-30 mJ for the tin pinch. The developed method makes it possible to carry out radiographic examination of microobjects (including biological ones) 1-1000 μm in thickness, with spatial (10-20 μm) and time (2-3 ns) resolution.
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U2 - 10.1134/S1063784210110125
DO - 10.1134/S1063784210110125
M3 - Article
VL - 55
SP - 1619
EP - 1627
JO - Technical Physics
JF - Technical Physics
SN - 1063-7842
IS - 11
ER -