Results 1 to 10 of about 367,573 (256)

Prompt fission neutron spectra in the 235U(n,f) reaction [PDF]

EPJ Web of Conferences, 2023
Prompt fission neutron spectra (PFNS) are crucial to any neutronic simulation of critical nuclear systems. An experimental setup dedicated to the measurements of PFNS of very high accuracy was developed at the Los Alamos Neutron Science Center (LANSCE ...
Mauss B., Taïeb J., Laurent B., Bélier G., Chatillon A., Étasse D., Morfouace P., Roig O., Devlin M., Gomez J.A., Haight R. C., Kelly K. J., O’Donnell J.M., Schmitt K.T.   +13 more
doaj   +1 more source

Using dense seismo-acoustic network to provide timely warning of the 2019 paroxysmal Stromboli eruptions

Scientific Reports, 2021
Stromboli Volcano is well known for its persistent explosive activity. On July 3rd and August 28th 2019, two paroxysmal explosions occurred, generating an eruptive column that quickly rose up to 5 km above sea level. Both events were detected by advanced
A. Le Pichon, C. Pilger, L. Ceranna, E. Marchetti, G. Lacanna, V. Souty, J. Vergoz, C. Listowski, B. Hernandez, G. Mazet-Roux, A. Dupont, P. Hereil   +11 more
doaj   +1 more source

Optimization of multipurpose reservoir system operation (Case study: Sefidrud and Shahryar reservoir dams) [PDF]

E3S Web of Conferences, 2022
Nowadays, effective water management becomes more vital all over the worlds. Due to the effect of climate change and population growth, reservoirs play a more important role in water resources management. Reservoirs can be used for multiple purposes such
Abolvaset Naeemeh, shahradfar Simin, Mihandoost Atosa   +2 more
doaj   +1 more source

Accounting for speckle-scale beam bending in classical ray tracing schemes for propagating realistic pulses in indirect drive ignition conditions

Matter and Radiation at Extremes, 2023
We propose a semi-analytical modeling of smoothed laser beam deviation induced by plasma flows. Based on a Gaussian description of speckles, the model includes spatial, temporal, and polarization smoothing techniques, through fits coming from ...
C. Ruyer, P. Loiseau, G. Riazuelo, R. Riquier, A. Debayle, P. E. Masson-Laborde, O. Morice   +6 more
doaj   +1 more source

Production yields of micro-second isomers populated in 252Cf(SF) [PDF]

EPJ Web of Conferences, 2020
A twin Frisch grid ionization chamber loaded with an ultra-thin 252 Cf sample is used in order to detect spontaneous fission events. The chamber is surrounded by 8 HPGe detectors allowing to perform γ-spectroscopic measurements.
Gaudefroy Laurent, Ebran Adeline
doaj   +1 more source

Enhanced ion acceleration using the high-energy petawatt PETAL laser

Matter and Radiation at Extremes, 2021
The high-energy petawatt PETAL laser system was commissioned at CEA’s Laser Mégajoule facility during the 2017–2018 period. This paper reports in detail on the first experimental results obtained at PETAL on energetic particle and photon generation from ...
D. Raffestin, L. Lecherbourg, I. Lantuéjoul, B. Vauzour, P. E. Masson-Laborde, X. Davoine, N. Blanchot, J. L. Dubois, X. Vaisseau, E. d’Humières, L. Gremillet, A. Duval, Ch. Reverdin, B. Rosse, G. Boutoux, J. E. Ducret, Ch. Rousseaux, V. Tikhonchuk, D. Batani   +18 more
doaj   +1 more source

Evaluation of memory-preserving models for particle transport in random media [PDF]

EPJ Web of Conferences
A shortcoming of the Levermore-Pomraning (LP) model is its inaccuracy to treat the transport of particles in a diffusive material alternating with a transparent one. Enhanced-memory LP models have been proposed by Zimermann et al.
Samba Gerald, Charpentier Nicolas, Stepanovic Bogdan, Soulard Olivier, Laguzet Laetitia   +4 more
doaj   +1 more source

Theoretical study of the porosity effects on the shock response of graphitic materials

EPJ Web of Conferences, 2015
In this paper we present a theoretical study of the shock compression of porous graphite by means of combined Monte Carlo and molecular dynamics simulations using the LCBOPII potential. The results show that the Hugoniostat methods can be used with “pole”
Pineau Nicolas, Bourasseau Emeric, Maillet Jean-Bernard, Soulard Laurent, Hébert David   +4 more
doaj   +1 more source

C-BORD project: “Effective container inspection at BORDer control points”

EPJ Web of Conferences, 2017
In the framework of the C-BORD project of the H2020 programme to provide a safety chain for container inspection at border control points, CEA-DAM is involved to develop an identification method of Special Nuclear Material. Using active interrogation the
Etilé Asénath, Roig Olivier, Bauge Eric, Gaudefroy Laurent, Méot Vincent   +4 more
doaj   +1 more source

On the Wigner-Kirkwood Expansion of the Free Energy and the Evaluation of the Quantum Correction

Atoms, 2022
The Wigner-Kirkwood expansion of the quantum correction to the classical free energy is generally said to be in powers of ℏ2 and only its first few terms are presented.
Luc Kazandjian, François Soubiran, Jean-Christophe Pain   +2 more
doaj   +1 more source