Laboratory measurements of hot iron opacities at EUV wavelengths

E. Wagenaars; L. M.R. Gartside; A. K. Rossall; N. Booth; S. White; C. L.S. Lewis; M. M. Notley; R. Heathcote; G. J. Tallents

doi:10.1117/12.825057

Laboratory measurements of hot iron opacities at EUV wavelengths

E. Wagenaars, L. M.R. Gartside, A. K. Rossall, N. Booth, S. White, C. L.S. Lewis, M. M. Notley, R. Heathcote, G. J. Tallents

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The evolution of the transmission of extreme ultra-violet (EUV) light from a germanium backlighter through heated thin iron targets has been measured at laser irradiances of about 8><10 W cm^-2. A rapid increase in transmission from 0 to 30% in 20 ps was observed. A two dimensional radiation hydrodynamics model was used to simulate the heating of the plasma and the transmission of EUV light as a function of time. The tamped iron targets were heated up to an average electron temperature of about 55 e V and a mass density of approximately 0.6 g cm^-3. The transmission measurements are in reasonable agreement with modelling results. The experimental layout is similar to an X-ray laser experiment and therefore, for relatively low plasma temperatures, these kinds of experiments can be done in combination with X-ray laser experiments, giving transmission data for a range of wavelengths rather than a single X-ray laser wavelength.

Original language	English
Title of host publication	Soft X-Ray Lasers and Applications VIII
Volume	7451
DOIs	https://doi.org/10.1117/12.825057
Publication status	Published - 28 Sep 2009
Externally published	Yes
Event	Soft X-Ray Lasers and Applications VIII - San Diego, United States Duration: 4 Aug 2009 → 6 Aug 2009 Conference number: 8 https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7451.toc

Conference

Conference	Soft X-Ray Lasers and Applications VIII
Country/Territory	United States
City	San Diego
Period	4/08/09 → 6/08/09
Internet address	https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7451.toc

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title = "Laboratory measurements of hot iron opacities at EUV wavelengths",

abstract = "The evolution of the transmission of extreme ultra-violet (EUV) light from a germanium backlighter through heated thin iron targets has been measured at laser irradiances of about 8><10 W cm-2. A rapid increase in transmission from 0 to 30% in 20 ps was observed. A two dimensional radiation hydrodynamics model was used to simulate the heating of the plasma and the transmission of EUV light as a function of time. The tamped iron targets were heated up to an average electron temperature of about 55 e V and a mass density of approximately 0.6 g cm-3. The transmission measurements are in reasonable agreement with modelling results. The experimental layout is similar to an X-ray laser experiment and therefore, for relatively low plasma temperatures, these kinds of experiments can be done in combination with X-ray laser experiments, giving transmission data for a range of wavelengths rather than a single X-ray laser wavelength.",

keywords = "EUV, Iron, Opacity, Soft x-ray laser",

author = "E. Wagenaars and Gartside, {L. M.R.} and Rossall, {A. K.} and N. Booth and S. White and Lewis, {C. L.S.} and Notley, {M. M.} and R. Heathcote and Tallents, {G. J.}",

year = "2009",

month = sep,

day = "28",

doi = "10.1117/12.825057",

language = "English",

isbn = "9780819477415",

volume = "7451",

booktitle = "Soft X-Ray Lasers and Applications VIII",

note = "Soft X-Ray Lasers and Applications VIII ; Conference date: 04-08-2009 Through 06-08-2009",

url = "https://www.spiedigitallibrary.org/conference-proceedings-of-spie/7451.toc",

}

Wagenaars, E, Gartside, LMR, Rossall, AK, Booth, N, White, S, Lewis, CLS, Notley, MM, Heathcote, R & Tallents, GJ 2009, Laboratory measurements of hot iron opacities at EUV wavelengths. in Soft X-Ray Lasers and Applications VIII. vol. 7451, 74510G, Soft X-Ray Lasers and Applications VIII, San Diego, California, United States, 4/08/09. https://doi.org/10.1117/12.825057

TY - GEN

T1 - Laboratory measurements of hot iron opacities at EUV wavelengths

AU - Wagenaars, E.

AU - Gartside, L. M.R.

AU - Rossall, A. K.

AU - Booth, N.

AU - White, S.

AU - Lewis, C. L.S.

AU - Notley, M. M.

AU - Heathcote, R.

AU - Tallents, G. J.

N1 - Conference code: 8

PY - 2009/9/28

Y1 - 2009/9/28

N2 - The evolution of the transmission of extreme ultra-violet (EUV) light from a germanium backlighter through heated thin iron targets has been measured at laser irradiances of about 8><10 W cm-2. A rapid increase in transmission from 0 to 30% in 20 ps was observed. A two dimensional radiation hydrodynamics model was used to simulate the heating of the plasma and the transmission of EUV light as a function of time. The tamped iron targets were heated up to an average electron temperature of about 55 e V and a mass density of approximately 0.6 g cm-3. The transmission measurements are in reasonable agreement with modelling results. The experimental layout is similar to an X-ray laser experiment and therefore, for relatively low plasma temperatures, these kinds of experiments can be done in combination with X-ray laser experiments, giving transmission data for a range of wavelengths rather than a single X-ray laser wavelength.

AB - The evolution of the transmission of extreme ultra-violet (EUV) light from a germanium backlighter through heated thin iron targets has been measured at laser irradiances of about 8><10 W cm-2. A rapid increase in transmission from 0 to 30% in 20 ps was observed. A two dimensional radiation hydrodynamics model was used to simulate the heating of the plasma and the transmission of EUV light as a function of time. The tamped iron targets were heated up to an average electron temperature of about 55 e V and a mass density of approximately 0.6 g cm-3. The transmission measurements are in reasonable agreement with modelling results. The experimental layout is similar to an X-ray laser experiment and therefore, for relatively low plasma temperatures, these kinds of experiments can be done in combination with X-ray laser experiments, giving transmission data for a range of wavelengths rather than a single X-ray laser wavelength.

KW - EUV

KW - Iron

KW - Opacity

KW - Soft x-ray laser

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U2 - 10.1117/12.825057

DO - 10.1117/12.825057

M3 - Conference contribution

AN - SCOPUS:70450257923

SN - 9780819477415

VL - 7451

BT - Soft X-Ray Lasers and Applications VIII

T2 - Soft X-Ray Lasers and Applications VIII

Y2 - 4 August 2009 through 6 August 2009

ER -

Laboratory measurements of hot iron opacities at EUV wavelengths

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