Quasi-Moseley's law for strong narrow bandwidth soft x-ray sources containing higher charge-state ions

Ohashi, Hayato; Higashiguchi, Takeshi; Suzuki, Yuhei; Arai, Goki; Otani, Yukitoshi; Yatagai, Toyohiko; Li, Bowen; Dunne, Padraig; O'Sullivan, Gerry; Jiang, Weihua; Endo, Akira; Sakaue, Hiroyuki; Kato, Daiji; Murakami, Izumi; Tamura, N.; Sudo, S.; Koike, Fumihiro; Suzuki, C.

doi:10.1063/1.4883475

Cited by 45 publications

(31 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Optically thinner LHD plasma spectra are shown in Figures 6(l) −6(q). It should be noted that the electron temperatures of LHD plasma were relatively low, ≤ 1 keV, but higher than in 150-ps LPPs [24].…”

Section: N+1mentioning

confidence: 99%

“…In this section, we show that the strong resonance UTAs of Nd:YAG LPPs for elements with Z = 50−83 obey a quasi-Moseley's law [24]. A 150-ps Nd:YAG laser with a maximum energy of 250 mJ at λ L = 1.064 μm and an 8-ns Nd:YAG laser giving 400 mJ at λ L = 1.064 μm were employed to provide the desired variation of laser intensity.…”

Section: Quasi-moseley's Law For the Uta Emissionmentioning

confidence: 99%

See 1 more Smart Citation

Laser-Produced Heavy Ion Plasmas as Efficient Soft X-Ray Sources

Higashiguchi¹,

Dunne²,

O’Sullivan³

2016

Plasma Science and Technology - Progress in Physical States and Chemical Reactions

Self Cite

View full text Add to dashboard Cite

We demonstrate extreme ultraviolet (EUV) and soft x-ray sources in the 2-to 7 -nm spectral region related to the beyond extreme ultraviolet (BEUV) question at 6.x nm and a water window source based on laser-produced high-Z plasmas. Strong emissions from multiply charged ions merge to produce intense unresolved transition array (UTA) toward extending below the carbon K-edge (4.37 nm). An outline of a microscope design for single-shot live-cell imaging is proposed based on a high-Z UTA plasma source, coupled to x-ray optics. We will discuss the progress and Z-scaling of UTA emission spectra to achieve lab-scale table-top, efficient, high-brightness high-Z plasma EUV-soft x-ray sources for in vivo bio-imaging applications.

show abstract

Section: N+1mentioning

confidence: 99%

Section: Quasi-moseley's Law For the Uta Emissionmentioning

confidence: 99%

Laser-Produced Heavy Ion Plasmas as Efficient Soft X-Ray Sources

Higashiguchi¹,

Dunne²,

O’Sullivan³

2016

Plasma Science and Technology - Progress in Physical States and Chemical Reactions

Self Cite

View full text Add to dashboard Cite

show abstract

“…When the outer diameter of the thick-shell type TESPEL is around 700 µm, the shell thickness of the TESPEL is usually about 250 µm. In this case, the total amount of the electron and ion in the shell are 6.0 × 10 19 and 1.7×10 19 , respectively. Since the typical volume of the LHD plasma is 30 m 3 , the ratio of the numbers of the electron from this thick-shell type TESPEL to that of the LHD plasma is only 6.7% in the case of the averaged bulk electron density of 3 × 10 19 m −3 .…”

Section: Various Types Of Tespelsmentioning

confidence: 95%

“…The photograph clearly shows the bulged tiny polystyrene ball from the surface of the TESPEL as described above. For reference, the photograph of the Au-containing conventional (thick-shell type) TESPEL, which is used for the development research of an extreme ultraviolet lithography light source [19], is also shown in Fig. 4 (b).…”

Section: Various Types Of Tespelsmentioning

confidence: 99%

Creation of Impurity Source inside Plasmas with Various Types of Tracer-Encapsulated Solid Pellet

Tamura

Sudo

Suzuki

et al. 2015

Plasma and Fusion Research

Self Cite

View full text Add to dashboard Cite

A Tracer-Encapsulated Solid Pellet (TESPEL) was developed for promoting an impurity transport study in a magnetically-confined plasma. One of the advantages of the TESPEL is that it can make a three-dimensionally localized impurity source in the plasma. This enables us to inject the tracer impurity inside or in the vicinity of the region of interest. Recently, a new-type TESPEL with a thinner outer shell has been developed in order to achieve a shallower deposition of the tracer impurity. With the TESPEL having the thinner shell, we have achieved about 4 cm shallower deposition of the tracer impurity, compared with the case of the conventional thick-shell type TESPEL with the same outer diameter of about 700 µm. Moreover, for the achievement of the further shallower deposition of the tracer impurity, we also developed the TESPEL with a tracer-impurity-doped thin shell. After the injection of the TESPEL with the tracer-impurity-doped thin shell, the line emissions from the highly-ionized doped impurity are clearly observed with a vacuum ultraviolet spectrometer, which clearly demonstrates its ability to carry the impurity as a new tool.

show abstract

“…[2][3][4] The wavelength of the UTA emission from a near Pd-like ion of heavy elements decreases according to the quasi-Moseley's law to λ = 3.97 nm using Bi. 5 The emission at λ = 6.x nm from Gd and Tb 6 is considered a candidate source for future microlithography. 7 Light sources at the waterwindow wavelengths, λ = 2.4 -4.5 nm, have attracted attention for biological imaging.…”

confidence: 99%

Investigation of the ionization balance of bismuth-to-tin plasmas for the extreme ultraviolet light source based on a computer-generated collisional radiative model

et al. 2016

View full text Add to dashboard Cite

The ionization balance of the bismuth-to-tin plasmas is systematically investigated on the basis of a collisional radiative model, which has been generated using a computer algorithm to analyze the level structure of multiple charged ions to construct the model. The atomic energy levels and rate coefficients corresponding to the model are calculated using the HULLAC code. With this method, we investigate the plasma temperature, which is required to obtain emission in the extreme ultraviolet wavelength range from 13.5 nm to the water window.

show abstract

Quasi-Moseley's law for strong narrow bandwidth soft x-ray sources containing higher charge-state ions

Cited by 45 publications

References 25 publications

Laser-Produced Heavy Ion Plasmas as Efficient Soft X-Ray Sources

Laser-Produced Heavy Ion Plasmas as Efficient Soft X-Ray Sources

Creation of Impurity Source inside Plasmas with Various Types of Tracer-Encapsulated Solid Pellet

Investigation of the ionization balance of bismuth-to-tin plasmas for the extreme ultraviolet light source based on a computer-generated collisional radiative model

Contact Info

Product

Resources

About