Characterization of pure and mixed Ar, Kr and Xe gas jets generated by different nozzles and a study of X-ray radiation yields after interaction with a sub-ps laser pulse

Gas jets accelerated through a linear supersonic and a conical nozzle, comprising a monomer/cluster mix, were characterized at UNR using a Mach-Zehnder type interferometer and Rayleigh scattering. A comparison of the two nozzle types is presented, showing that the linear nozzle produces gas jets of an order of magnitude denser than the conical nozzle. The linear gas jets of Ar, Kr, and Xe as well as triple mixtures with different percentages of each of the aforementioned gases were characterized. The densest gas jets used Ar as the target gas, while the least dense jets came from Kr. Cluster radii of the pure gases were measured, and Xe gas jets were found to produce the largest gas clusters. A study of X-ray generation by gas jet-laser plasma was performed at the UNR Leopard laser (1.057 μm, 350 fs, ∼1019 W/cm2) on the linear nozzle. The gas jets were irradiated with a high-intensity sub-ps laser pulse. An absolute X-ray output of the laser-gas jet interactions measured by the calibrated PCDs is presente...

[1]  J. Moschella,et al.  Study of x-rays produced from debris-free sources with Ar, Kr and Kr/Ar mixture linear gas jets irradiated by UNR Leopard laser beam with fs and ns pulse duration , 2016 .

[2]  Andrzej Bartnik,et al.  Extreme ultraviolet tomography of multi-jet gas puff target for high-order harmonic generation , 2014 .

[3]  P. Wachulak,et al.  Soft X-ray characterization of an elongated gas-puff target dedicated for laser–matter interaction experiments and high harmonic generation , 2012 .

[4]  K. Meiwes-Broer,et al.  Laser-driven nonlinear cluster dynamics , 2009, 0904.2706.

[5]  P. Sharma,et al.  Generation of multiply charged atomic ions of halogens using second harmonic of nanosecond Nd:YAG laser , 2009 .

[6]  C. Niemann,et al.  High contrast Kr gas jet K alpha x-ray source for high energy density physics experiments. , 2008, The Review of scientific instruments.

[7]  B. Shim,et al.  Characterization of cluster/monomer ratio in pulsed supersonic gas jets , 2008, 2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science.

[8]  J. Jha,et al.  Hotter electron generation in doped clusters , 2008 .

[9]  G. Hays,et al.  Enhanced harmonic generation from expanding clusters. , 2007, Physical review letters.

[10]  K. Y. Kim,et al.  X-ray spectroscopy of 1 cm plasma channels produced by self-guided pulse propagation in elongated cluster jets. , 2006, Physical review. E, Statistical, nonlinear, and soft matter physics.

[11]  H. Jouin,et al.  Investigation of laser-irradiated Ar cluster dynamics from K-shell x-ray emission measurements. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[12]  A. Velikovich,et al.  Dynamics of a Xe cluster plasma produced by an intense ultrashort pulse KrF laser , 2005 .

[13]  F. Dorchies,et al.  Spatial distribution of cluster size and density in supersonic jets as targets for intense laser pulses , 2003 .

[14]  Edward I. Moses,et al.  The National Ignition Facility: Status and Plans for the Experimental Program , 2003 .

[15]  Sebastian Kranzusch,et al.  Spatial characterization of extreme ultraviolet plasmas generated by laser excitation of xenon gas targets , 2003 .

[16]  J. Lister,et al.  Investigation of the consistency of magnetic and soft X-ray plasma position measurements on TCV by means of a rapid tomographic inversion algorithm , 2003 .

[17]  Perry,et al.  Interaction of intense laser pulses with atomic clusters. , 1996, Physical review. A, Atomic, molecular, and optical physics.

[18]  O. Hagena.  Cluster ion sources (invited) , 1992 .

[19]  G. Stein,et al.  Homogeneous nucleation of sulfur hexafluoride clusters in Laval nozzle molecular beams , 1981 .