A5038267280- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Nuclear Materials and Properties
- Astronomical and nuclear sciences
- Atomic and Subatomic Physics Research
- Radioactive contamination and transfer
- Rare-earth and actinide compounds
- Radiation Therapy and Dosimetry
- Atomic and Molecular Physics
- Quantum Chromodynamics and Particle Interactions
- Radioactivity and Radon Measurements
- Particle accelerators and beam dynamics
- Advanced NMR Techniques and Applications
- Advanced Chemical Physics Studies
- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- X-ray Spectroscopy and Fluorescence Analysis
- Ion-surface interactions and analysis
- Radioactive element chemistry and processing
- Nuclear and radioactivity studies
- High-Energy Particle Collisions Research
- Superconducting Materials and Applications
- Astro and Planetary Science
European Commission
2016-2025
Joint Research Center
2009-2023
European Union
2023
Lawrence Berkeley National Laboratory
2022
Horia Hulubei National Institute for R and D in Physics and Nuclear Engineering
2020-2021
University of Bucharest
2021
Extreme Light Infrastructure - Nuclear Physics
2020-2021
International Atomic Energy Agency
2021
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2021
CEA Paris-Saclay - Etablissement de Saclay
2021
We present results from new spectral prompt $\ensuremath{\gamma}$-ray measurements the spontaneous fission of ${}^{252}$Cf. Apart one recent experiment, about four decades have passed since last dedicated experiments were reported in literature. Hence, there was a need for revision. measured $\ensuremath{\gamma}$ rays with both cerium-doped LaBr${}_{3}$ and CeBr${}_{3}$ scintillation detectors, which exhibit excellent timing good energy resolution. The emission yield determined to be...
In this paper we present results from measurements of prompt $\ensuremath{\gamma}$ rays the thermal neutron induced fission ${}^{235}$U. Photons were measured in coincidence with fragments cerium-doped LaCl${}_{3}$ and LaBr${}_{3}$ as well CeBr${}_{3}$ scintillation detectors, which offer an intriguing combination excellent timing resolution good resolving power. The spectra all employed detectors are agreement respect to their shapes. Characteristic parameters extracted for a...
AbstractAbstractA measurement of the 235U prompt fission neutron spectrum (PFNS) was performed at Budapest Nuclear Research Reactor 100 K incident energy. The motivation for this investigation to verify some literature data measured over past 20 years that contradict Los Alamos model, as well integral data, benchmark (Keff) experiments, and recent spectral taken 0.5 MeV spectra using three detectors are in excellent agreement with each other. average confirms within error bars energy range...
Background: One important quantity in nuclear fission is the average number of prompt neutrons emitted from fragments, neutron multiplicity, $\overline{\ensuremath{\nu}}$. The total neutrons, ${\overline{\ensuremath{\nu}}}_{\text{tot}}$, increases with increasing incident energy. prompt-neutron multiplicity also a function fragment mass and kinetic energy fragmentation. Those data are only known sufficient detail for few thermal-neutron-induced reactions on, example, ${}^{233,235}$U...
In the frame of refined prompt neutron emission models used for evaluation purposes, partition total excitation energy (TXE) between fully accelerated fission fragments plays an important role. this work TXE complementary is obtained by taking into account components at scission. The method consists two steps: calculation additional deformation energies nascent (which are relaxed full acceleration) and available scission (obtained subtracting calculated from TXE) assuming statistical...
In this paper we report on a new study of prompt $\ensuremath{\gamma}$-rays from the spontaneous fission ${}^{252}\mathrm{Cf}$. Photons were measured in coincidence with fragments by employing four different lanthanide halide scintillation detectors. Together results previous work ours, determined characteristic parameters high precision, such as average $\ensuremath{\gamma}$-ray multiplicity...
Improved knowledge of prompt emission in fission has significant implications for our understanding the process. It is also important improving nuclear data evaluation, with impact on applications. The correlation between neutrons and fragments emitted binary neutron induced $^{235}\mathrm{U}$ been studied at GELINA facility. experiment employs an array proton recoil scintillators a position-sensitive twin ionization chamber. This experimental arrangement permits measurement correlations...
The VElocity foR Direct particle Identification (VERDI) is a spectrometer designed to determine fission-fragment mass distributions using the 2E-2v method, which measures both velocities and energies of fission fragments. VERDI has two time-of-flight (TOF) sections, each with Micro Channel Plate (MCP) Time-of-flight Start detector up 32 passivated implanted planar silicon (PIPS) detectors. Achieving desired resolution challenged by need for high TOF energy resolutions. Recent upgrades setup...
In this paper we present results from the first high-precision prompt-$\ensuremath{\gamma}$-ray spectral measurements reaction $^{241}\mathrm{Pu}$(${n}_{\mathrm{th}}$, $f$). Apart one recent experiment, no data are reported in literature for fissioning system, which motivated a new dedicated experiment. We have measured prompt-fission $\ensuremath{\gamma}$ rays with three cerium-doped $\mathrm{La}{\mathrm{Br}}_{3}$ (two...
This work investigates the neutron-induced fission of $^{234}\mathrm{U}$ and fission-fragment properties for neutron energies between ${E}_{\mathrm{n}}=0.2$ 5.0 MeV with a special highlight on prominent vibrational resonance at ${E}_{\mathrm{n}}=0.77$ MeV. Angular, energy, mass distributions were determined based double-energy technique by means twin Frisch-grid ionization chamber. The experimental data are parametrized in terms modes multimodal random neck-rupture model. main results...