Search results

Sort By:

Limit search:

MCNP calculations of neutron emission anisotropy caused by the GIT-12 hardware

100%

Šíla O., Klír D., Řezáč K., Cikhardtova B., Cikhardt J.

Nukleonika

2015

vol. 60

issue 2

323-326

The MCNP6 and MCNPX calculations for the GIT-12 device in Tomsk were performed to determine the influence of the gas-puff hardware on the neutron emission anisotropy and the neutron scattering rate. A monoenergetic 2.45 MeV neutron source and F1 and F6 tallies were declared in the simulation input. A comparison between MCNP results and the measured data was made. Differences between MCNPX and MCNP6 output data were investigated. In the experiment, two nTOF scintillation detectors with the Bicron BC-408 scintillator were used to measure the neutron waveform. Four bubble BD-PND detectors were used to estimate the amount of neutrons in different places around the neutron source.

Electromagnetic pulses produced by expanding laser-produced Au plasma

59%

De Marco M., Cikhardt J., Krása J., Velyhan A., Pfeifer M., Krouský E., Klír D., Řezáč K., Limpouch J., Margarone D., Ullschmied J.

Nukleonika

2015

vol. 60

issue 2

239-243

The interaction of an intense laser pulse with a solid target produces large number of fast free electrons. This emission gives rise to two distinct sources of the electromagnetic pulse (EMP): the pulsed return current through the holder of the target and the outflow of electrons into the vacuum. A relation between the characteristics of laser-produced plasma, the target return current and the EMP emission are presented in the case of a massive Au target irradiated with the intensity of up to 3 × 1016 W/cm2. The emission of the EMP was recorded using a 12 cm diameter Moebius loop antennas, and the target return current was measured using a new type of inductive target probe (T-probe). The simultaneous use of the inductive target probe and the Moebius loop antenna represents a new useful way of diagnosing the laser–matter interaction, which was employed to distinguish between laser-generated ion sources driven by low and high contrast laser pulses.

Refine search results

2 Nukleonika

2 2015

2 Cikhardt J.

2 Klír D.

2 Řezáč K.

1 Cikhardtova B.

1 De Marco M.

1 Krouský E.

1 Krása J.

1 Limpouch J.

1 Margarone D.

1 Pfeifer M.

1 Ullschmied J.

1 Velyhan A.

1 Šíla O.

Search results

MCNP calculations of neutron emission anisotropy caused by the GIT-12 hardware

Electromagnetic pulses produced by expanding laser-produced Au plasma