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[PDF] Top 20 Spallation Reactions with Neutron-Rich and Neutron-Poor Nuclei

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Spallation Reactions with Neutron-Rich and Neutron-Poor Nuclei

Spallation Reactions with Neutron-Rich and Neutron-Poor Nuclei

... pion's and delta's (4) isospin degrees of freedom are in- trodu ed for all types of parti les; (5) the as ade ode is stopped at a time determined by the ode itself, when the emission pattern be omes evapora- tive; ... Voir le document complet

6

A short introduction to spallation reactions

A short introduction to spallation reactions

... the neutron number n in 1 GeV proton-induced reactions on Pb ...] reactions. 2 Due to secondary reactions, the number of neutrons escaping from the spallation source per incident proton ... Voir le document complet

7

Production and $\beta$ half-lives of heavy neutron-rich nuclei approaching the r-process path at N=126

Production and $\beta$ half-lives of heavy neutron-rich nuclei approaching the r-process path at N=126

... France and the RISING collaboration Fragmentation reactions of relativistic 238 U and 208 Pb projectiles have been used to investigate the production of heavy neutron-rich nuclei ... Voir le document complet

6

Constraining statistical-model parameters using fusion and spallation reactions

Constraining statistical-model parameters using fusion and spallation reactions

... three nuclei are similar and E W (I) is approximately linear in |I| for small |I|, then ∆B ' E W (I 0 ) for N , ...compound nuclei of similar size but di fferent ...[24], and 90,94,98 Mo [19] ... Voir le document complet

4

Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number

Low-lying electric dipole $γ$-continuum for the unstable $^{62,64}$Fe nuclei: Strength evolution with neutron number

... states and including two-particle two-hole (2p-2h) or even three-particle three-hole (3p-3h) ...1ph and 2ph (and 3ph) ...states and carry the major part of the excitation E1 ...exponentially ... Voir le document complet

11

Sequential Nature of $(p,3p)$ Two-Proton Knockout from Neutron-Rich Nuclei

Sequential Nature of $(p,3p)$ Two-Proton Knockout from Neutron-Rich Nuclei

... atomic nuclei [1 –3] , but the structural evolution as a function of proton-to-neutron asymmetry remains an out- standing questions in quantum physics [4] ...interactions and is currently the focus ... Voir le document complet

8

Mass measurements of neutron-rich nuclei near the N=20 and 28 shell closures

Mass measurements of neutron-rich nuclei near the N=20 and 28 shell closures

... exotic nuclei three main issues have to be faced: the produc- tion rates, the mass resolution and the system- atic ...technique with the high- resolution energy-loss spectrometer ...elemental ... Voir le document complet

9

Fusion of the most neutron-rich nucleus 8He : Recent results from GANIL

Fusion of the most neutron-rich nucleus 8He : Recent results from GANIL

... accelerator and isotope-production technology, like the Isotope Separation On-Line (ISOL) technique, provides new opportunities to study and understand reactions involving rare short-lived isotopes ... Voir le document complet

7

Shell gap reduction in neutron-rich N=17 nuclei

Shell gap reduction in neutron-rich N=17 nuclei

... transfer reactions, 26 Ne(d,p) 27 Ne, 27 Ne spectroscopy PACS: ...the neutron-rich sodium and magnesium isotopes ...the neutron drip line, both theoretically [3–5] and ... Voir le document complet

11

Pair and single neutron transfer with Borromean ${8}$He

Pair and single neutron transfer with Borromean ${8}$He

... state Q-value of 11.96 MeV (>S n ). Cross sections were extracted from inclusive γ-ray measurements and those for the 198m Au residues were obtained using γ − γ co- incidences [Fig. 2(b)]. The effects of ... Voir le document complet

6

Modern Rutherford experiment: Tunneling of the most neutron-rich nucleus

Modern Rutherford experiment: Tunneling of the most neutron-rich nucleus

... entrance and exit channels consisted of double-folded real and short-ranged imaginary ...only neutron transfer channels shows that the low parti- cle threshold ...bound nuclei [8] (see ... Voir le document complet

5

MicroMegas-based detectors for time-of-flight measurements of neutron-induced reactions

MicroMegas-based detectors for time-of-flight measurements of neutron-induced reactions

... MicroMegas with pulsed neutron beams Unlike charged particle beams which can be focussed with magnets, neutron beams can only be shape through colli- mation and therefore are used ... Voir le document complet

5

Neutron Scattering Instrumentation at Compact Neutron Sources

Neutron Scattering Instrumentation at Compact Neutron Sources

... powerful and are able to replace or overtake nuclear reactors in terms of performances for neutron ...licensing and operational requirements, it is very unlikely that new nuclear research reactors ... Voir le document complet

16

Neutron-induced cross sections of short-lived nuclei via the surrogate reaction method

Neutron-induced cross sections of short-lived nuclei via the surrogate reaction method

... incident neutron energies of 0-1,2 MeV. The left and right parts are dedicated to negative and positive parities, ...elastic neutron channel that is only observed for spin values close to 0 ħ ... Voir le document complet

13

Dependence of Fission-Fragment Properties On Excitation Energy For Neutron-Rich Actinides

Dependence of Fission-Fragment Properties On Excitation Energy For Neutron-Rich Actinides

... Lighter fissioning systems at lower excitation energy show mostly asymmetric fission -this is the case of 238 U, 239 Np, and 240 Pu- while symmetric fission becomes more relevant for heavie[r] ... Voir le document complet

9

Unified description of fission in fusion and spallation reactions

Unified description of fission in fusion and spallation reactions

... the spallation reaction, the INCL4 ...MeV and 16.5 ¯h, but both distributions are quite broad and extend up to ∼650 MeV and ∼50 ¯h, ...fusion reactions we considered are characterized ... Voir le document complet

14

TRIPOLI-4 and FREYA for Stochastic Analog Neutron Transport. Application to Neutron Multiplicity Counting.

TRIPOLI-4 and FREYA for Stochastic Analog Neutron Transport. Application to Neutron Multiplicity Counting.

... quantities with great accuracy and performance, but performance and averaging come at the price of limited interaction-by-interaction ...neutrons and photons are ...the neutron ... Voir le document complet

9

Constraining the neutron star equation of state with gravitational wave signals from coalescing binary neutron stars

Constraining the neutron star equation of state with gravitational wave signals from coalescing binary neutron stars

... that with a single close-by source (at a distance of ∼100 Mpc), the neutron star radius could be constrained to 10% [17] ...analysis with PN waveforms truncated at 450 Hz to see how well the ... Voir le document complet

18

Contributions to the study of the unresolved resonance range of neutron-induced reactions

Contributions to the study of the unresolved resonance range of neutron-induced reactions

... R ' ⬇ 冪 1 4p s e ~E ! . ~39! This relationship allows a direct comparison of the po- tential scattering obtained from optical model calcula- tions with values reported in the literature. Its domain of application ... Voir le document complet

124

Neutron Reflectivity on Polymer Multilayers Doped with Magnetic Nanoparticles

Neutron Reflectivity on Polymer Multilayers Doped with Magnetic Nanoparticles

... ellipsometry and neutron reflectivity ...wafer) and the average optical refraction index (n ...doped with 0.025% v/v of MNPs). Neutron reflectivity enables to study the system at a ... Voir le document complet

5

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