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Your search keyword '"Mardor, Israel"' showing total 3 results
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3 results on '"Mardor, Israel"'

1. A New Probe to the High-Intensity Frontier: Soreq Applied Research Accelerator Facility (SARAF).

Author

Mardor, Israel

Subjects
*NEUTRON irradiation, *THERMAL neutrons, *PROTON beams, *NUCLEAR reactions, *MATERIALS science, *NUCLEAR energy, *NUCLEAR astrophysics, *NUCLEAR research
Abstract

For the first time, a 1.5-mm thick windowless liquid lithium jet was bombarded with a 1-2 mA beam of ~1.9 MeV protons, just above the neutron production threshold in lithium (1.880 MeV), to produce an unprecedented rate of ~3-5 × 10 SP 10 sp n/sec, which irradiated a secondary target of interest (Figure 2, left). Simulated neutron energy spectrum from natGa, the main component (more than 80% of atoms) of the GaIn target, when irradiated by 40 MeV deuterons, normalized to a total yield of 2.7 × 1014 n/sec/mA. High-intensity neutron beams and large amounts of radioactive nuclei are powerful tools for exploring uncharted areas of basic and applied science. Right: Measured neutron energy spectra for 7Li(p,n)7Be from narrow and broad energy proton beams, compared to a Maxwellian distribution of kT = 28 keV. [Extracted from the article]

Published
2022
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2. The science case of the FRS Ion Catcher for FAIR Phase-0

Author

Plaß, Wolfgang R., Dickel, Timo, Mardor, Israel, Pietri, Stephane, Geissel, Hans, Scheidenberger, Christoph, Amanbayev, Daler, Andrés, Samuel Ayet San, Äystö, Juha, Balabanski, Dimiter L., Beck, Sönke, Bergmann, Julian, Charviakova, Volha, Constantin, Paul, Eronen, Tommi, Grahn, Tuomas, Greiner, Florian, Haettner, Emma, Hornung, Christine, Hucka, Jean-Paul, Jokinen, Ari, Kankainen, Anu, Miskun, Ivan, Moore, Iain D., Pikthtelev, Alexander, Pohjalainen, Ilkka, Purushothman, Sivaji, Patyk, Zygmunt, Reiter, Moritz P., Rink, Ann-Kathrin, Rinta-Antila, Sami, Spataru, Anamaria, Weick, Helmut, Winfield, John S., and Yavor, Mikhail I.

Subjects
ydinreaktiot, MR-TOF-MS, Nuclear Theory, mass measurements, ddc:530, exotic nuclides, Nuclear Experiment, ydinfysiikka, nuclear reactions, beta-delayed neutron emission, emissio (fysiikka)
Abstract

The FRS Ion Catcher at GSI enables precision experiments with thermalized projectile and fission fragments. At the same time it serves as a test facility for the Low-Energy Branch of the Super-FRS at FAIR. The FRS Ion Catcher has been commissioned and its performance has been characterized in five experiments with 238U and 124Xe projectile and fission fragments produced at energies in the range from 300 to 1000 MeV/u. High and almost element-independent efficiencies for the thermalization of short-lived nuclides produced at relativistic energies have been obtained. High-accuracy mass measurements of more than 30 projectile and fission fragments have been performed with a multiple-reflection time-of-flight mass spectrometer (MR-TOF-MS) at mass resolving powers of up to 410,000, with production cross sections down to the microbarn-level, and at rates down to a few ions per hour. The versatility of the MR-TOF-MS for isomer research has been demonstrated by the measurement of various isomers, determination of excitation energies and the production of a pure isomeric beam. Recently, several instrumental upgrades have been implemented at the FRS Ion Catcher. New experiments will be carried out during FAIR Phase-0 at GSI, including direct mass measurements of neutron-deficient nuclides below 100Sn and neutron-rich nuclides below 208Pb, measurement of β-delayed neutron emission probabilities and reaction studies with multi-nucleon transfer. peerReviewed

Published
2019

3. Nuclear-Reaction-Based Radiation Source For Explosives-And SNM-Detection In Massive Cargo.

Author

Brandis, Michal, Dangendorf, Volker, Piel, Christian, Vartsky, David, Bromberger, Benjamin, Bar, Doron, Friedman, Eliahu, Mardor, Israel, Mor, Ilan, Tittelmeier, Kai, and Goldberg, Mark B.

Subjects
CARGO inspection, EXPLOSIVES detection, NEUTRON counters, NUCLEAR reactions, RADIATION sources, RADIOGRAPHY, NEUTRONS spectra
Abstract

An automatic, nuclear-reaction-based, few-view transmission radiography method and system concept is presented, that will simultaneously detect small, operationally-relevant quantities of chemical explosives and special nuclear materials (SNM) in objects up to the size of LD-3 aviation containers. Detection of all threat materials is performed via the 11B(d,n+γ) reaction on thick, isotopically-enriched targets; SNM are primarily detected via Dual Discrete-Energy Radiography (DDER), using 15.11 MeV and 4.43 MeV 12C γ-rays, whereas explosives are primarily detected via Fast Neutron Resonance Radiography (FNRR), employing the broad-energy neutron spectra produced in a thick 11B-target. To achieve a reasonable throughput of ∼20 containers per hour, ns-pulsed deuteron beam of the order of 0.5 mA intensity at energies of 5-7 MeV is required. As a first step towards optimizing parameters and sensitivities of an operational system, the 0° spectra and yields of both γ-rays and neutrons in this reaction have been measured up to Ed = 6.65 MeV. [ABSTRACT FROM AUTHOR]

Published
2011
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