<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Low-temperature plasma production is possible as a result of photoionization using high-intensity extreme ultraviolet (EUV) and soft X-ray (SXR) pulses. Plasma of this type is also present in outer space, e.g., aurora borealis. It also occurs when high-velocity objects enter the atmosphere, during which period high temperatures can be produced locally by friction. Low-temperature plasma is also formed in an ambient gas surrounding the hot laser-produced plasma (LPP). In this work, a special system has been prepared for investigation of this type of plasma. The LPP was created inside a chamber filled with a gas under a low pressure, of the order of 1–50 mbar, by a laser pulse (3–9 J, 1–8 ns) focused onto a gas puff target. In such a case, the SXR/EUV radiation emitted from the LPP was partially absorbed in the low-density gas. In this case, high- and low-temperature plasmas (<italic>T</italic><sub>e</sub> ~100 eV and ~1 eV, respectively) were created locally in the chamber. Investigation of the EUV-induced plasmas was performed mainly using spectral methods in ultraviolet/visible (UV/VIS) light. The measurements were performed using an echelle spectrometer, and additionally, spatial–temporal measurements were performed using an optical streak camera. Spectral analysis was supported by the PGOPHER numerical code.</p>
</abstract>

Low-temperature plasma production is possible as a result of photoionization using high-intensity extreme ultraviolet (EUV) and soft X-ray (SXR) pulses. Plasma of this type is also present in outer space, e.g., aurora borealis. It also occurs when high-velocity objects enter the atmosphere, during which period high temperatures can be produced locally by friction. Low-temperature plasma is also formed in an ambient gas surrounding the hot laser-produced plasma (LPP). In this work, a special system has been prepared for investigation of this type of plasma. The LPP was created inside a chamber filled with a gas under a low pressure, of the order of 1–50 mbar, by a laser pulse (3–9 J, 1–8 ns) focused onto a gas puff target. In such a case, the SXR/EUV radiation emitted from the LPP was partially absorbed in the low-density gas. In this case, high- and low-temperature plasmas (Te ~100 eV and ~1 eV, respectively) were created locally in the chamber. Investigation of the EUV-induced plasmas was performed mainly using spectral methods in ultraviolet/visible (UV/VIS) light. The measurements were performed using an echelle spectrometer, and additionally, spatial–temporal measurements were performed using an optical streak camera. Spectral analysis was supported by the PGOPHER numerical code.

Investigation of low-temperature plasmas formed in low-density gases surrounding laser-produced plasmas

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Low-temperature plasma production is possible as a result of photoionization using high-intensity extreme ultraviolet (EUV) and soft X-ray (SXR) pulses. Plasma...

Investigation of low-temperature plasmas formed in low-density gases surrounding laser-produced plasmas

Article Category: ORIGINAL PAPER

Pubblicato online: 03 apr 2023

Pagine: 11 - 17

Ricevuto: 06 ott 2022

Accettato: 05 dic 2022

DOI: https://doi.org/10.2478/nuka-2023-0002

Parole chiave
Extreme ultraviolet (EUV), Laser plasma, Low pressure, Photoionization, Plasma, Soft X-ray (SXR)

© 2023 Mateusz Majszyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Investigation of low-temperature plasmas formed in low-density gases surrounding laser-produced plasmas

Article Category: ORIGINAL PAPER

Pubblicato online: 03 apr 2023

Pagine: 11 - 17

Ricevuto: 06 ott 2022

Accettato: 05 dic 2022

DOI: https://doi.org/10.2478/nuka-2023-0002

Parole chiaveExtreme ultraviolet (EUV), Laser plasma, Low pressure, Photoionization, Plasma, Soft X-ray (SXR)

© 2023 Mateusz Majszyk et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Parole chiave
Extreme ultraviolet (EUV), Laser plasma, Low pressure, Photoionization, Plasma, Soft X-ray (SXR)