@misc{oai:repo.qst.go.jp:00077231,
 author = {MORISHITA, TAKEHIRO and MATSUMOTO, YASUHIRO and JOHN, CHRISTIAN and Kishimoto, Maki and JOHZAKI, TOMOYUKI and EJIMA, TAKEO and SUNAHARA, ATSUSHI and ENDO, TAKUMA and HIGASHIGUCHI, TAKESHI and NAMBA, SHINICHI and Kishimoto, Maki},
 month = {Oct},
 note = {X-ray emitted by a laser generated plasma has various applications. Serious issue to be solved is thatthe energy conversion e?ciency from the laser to X-ray is quite low. Recently, it was found that the X-ray emitted by the laser produced Auplasma increases under nitrogen atmospheres. In particular, the intensity of the water window soft X-ray (2.4-4.4 nm) increases approximately ten times. In order to elucidate this enhancement mechanism of X-ray, we have measured soft X-ray spectra from Au plasma in the wavelength of 1-7 nm so far. Recently, we fabricated a TAP crystal spectrometer to observe the photons over 1 keV region (1.0-1.9 eV), which provides useful information of plasma temperature. As a detector, an imaging plate(IP) was used. Titanium ?lters was also used to block out-of-band emission. As a result, continuum spectra attributed unresolved transition arrays (UTAs) was observed from the Au laser plasma. This spectral profile was compared with the Star2D hydrodynamic code., DPP19 Meeting of The American Physical Society},
 title = {Observation of keV X-ray emitted from laser produced Au plasmas by using a crystal spectrometer},
 year = {2019}
}