Secondary ionization processes due to proton bombardment in aurorae

The production of 67Ga at iThemba LABS is performed by the proton bombardment of a tandem natZn/natZn target. 67Ga is separated from the target material using a method based on target dissolution, in acidic media, and dual chromatographic methods on Amberchrom CG-161M. The result is a product with a high radionuclidic purity 67Ga having such a low Fe content in the final product that it may be used in the labelling of peptides.

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Imaging of strong field dissociative single and double ionization channels of N2O

International Journal of Modern Physics B ◽

10.1142/s0217979217502150 ◽

2017 ◽

Vol 31 (29) ◽

pp. 1750215 ◽

Cited By ~ 4

Author(s):

Feras Afaneh ◽

Horst Schmidt-Böcking

Keyword(s):

Angular Distribution ◽

Laser Pulse ◽

Momentum Distribution ◽

Strong Field ◽

Double Ionization ◽

Photoelectron Angular Distribution ◽

Ionization Processes ◽

Elliptically Polarized ◽

Molecular Frame ◽

Ionization Rates

In this paper, we study single and double ionizations of N2O in a short elliptically polarized 800 nm laser pulse using the COLTRIMS technique. The molecular-frame photoelectron angular distribution and the ion sum-momentum distribution of single and double ionizations of N2O molecules are reported for the single ionization dissociative channel NO[Formula: see text] + N and the double ionization dissociative channel NO[Formula: see text] + N[Formula: see text]. The ionizations of multiple orbitals for the two studied dissociative channels were identified via studying the orientation dependent ionization rates for their KERs. The results show that the shape of the ionizing orbitals governs the single and double ionization processes of N2O.

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Measurement of the sound velocity of shock compressed water

Scientific Reports ◽

10.1038/s41598-021-84978-0 ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Hua Shu ◽

Jiangtao Li ◽

Yucheng Tu ◽

Junjian Ye ◽

Junyue Wang ◽

...

Keyword(s):

Experimental Data ◽

Molecular Dynamics ◽

Equation Of State ◽

Liquid Water ◽

Diamond Anvil Cell ◽

Quantum Molecular Dynamics ◽

Laser Shock ◽

Diamond Anvil ◽

Ionization Processes ◽

Sound Velocities

AbstractThe sound velocities of water in the Hugoniot states are investigated by laser shock compression of precompressed water in a diamond anvil cell. The obtained sound velocities in the off-Hugoniot region of liquid water at precompressed conditions are used to test the predictions of quantum molecular dynamics (QMD) simulations and the SESAME equation-of-state (EOS) library. It is found that the prediction of QMD simulations agrees with the experimental data while the prediction of SESAME EOS library underestimates the sound velocities probably due to its improper accounting for the ionization processes.

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