TY - JOUR
T1 - Spectral dynamics of soft X-ray emission in dual-laser-produced medium-Z plasma
AU - Ohashi, Hayato
AU - Hara, Hiroyuki
AU - Arai, Goki
AU - Hatano, Tadashi
AU - Ejima, Takeo
AU - Suzuki, Chihiro
AU - Namba, Shinichi
AU - Sasaki, Akira
AU - Nishikino, Masaharu
AU - O’Sullivan, Gerry
AU - Higashiguchi, Takeshi
N1 - Funding Information:
Acknowledgements This work was supported by JSPS (Japan Society for the Promotion of Science) KAKENHI, Grant-in-Aid for Scientific Research (B) Grant no. JP15H03570, Grant-in-Aid for Young Scientists (B) Grant no. JP15K17728, Grant-in-Aid for JSPS Research Fellow Grant no. 17J08957, and the JSPS Bilateral Joint Research Project. This work was also performed under the Cooperative Research Program of “Network Joint Research Center for Materials and Devices” (under contract subject “20183037”). Measurements of the grating efficiency and the response of the X-ray CCD camera were performed with the approval of the Photon Factory Program Advisory Committee (proposal no. 2015G667). The UCD group was supported by the Science Foundation Ireland International Co-operation Strategic Award 13/ ISCA/2846.
Publisher Copyright:
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2018/10/1
Y1 - 2018/10/1
N2 - Laser-produced medium element plasma sources are being considered as strong candidates for in vivo photographic imaging of biological samples in laboratory-scale water-window soft X-ray microscopes. We explored spectral changes in the emission from dual-laser-produced zirconium (Zr) plasmas in the water-window soft X-ray spectral region. The emission was enhanced at a delay time of 5 ns between the pre- and main-laser pulses and found to possess a source size of 38μm×68μm very similar to that obtained without any pre-pulse. We also investigated the decrease in emission observed at longer delay times, in the context of the collisional-radiative (CR) model-calculated absorption coefficient.
AB - Laser-produced medium element plasma sources are being considered as strong candidates for in vivo photographic imaging of biological samples in laboratory-scale water-window soft X-ray microscopes. We explored spectral changes in the emission from dual-laser-produced zirconium (Zr) plasmas in the water-window soft X-ray spectral region. The emission was enhanced at a delay time of 5 ns between the pre- and main-laser pulses and found to possess a source size of 38μm×68μm very similar to that obtained without any pre-pulse. We also investigated the decrease in emission observed at longer delay times, in the context of the collisional-radiative (CR) model-calculated absorption coefficient.
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U2 - 10.1007/s00340-018-7061-3
DO - 10.1007/s00340-018-7061-3
M3 - Article
AN - SCOPUS:85052892453
SN - 0946-2171
VL - 124
JO - Applied Physics B: Lasers and Optics
JF - Applied Physics B: Lasers and Optics
IS - 10
M1 - 193
ER -