Publications (19)
Light Nuclides Produced in the Proton-Induced Spallation of 238U at 1 GeV
M. V. Ricciardi, P. Armbruster, J. Benlliure +15
The production of light and intermediate-mass nuclides formed in the reaction 1H+238U at 1 GeV was measured at the Fragment Separator (FRS) at GSI, Darmstadt. The experiment was pe…
Fission-Residues Produced in the Spallation Reaction 238U+p at 1 A GeV
M. Bernas, P. Armbruster, J. Benlliure +16
Fission fragments from 1 A GeV 238U projectiles irradiating a hydrogen target were investigated by using the fragment separator FRS for magnetic selection of reaction products incl…
Threshold Resonant Structure of the 232Th Neutron-Induced Fission Cross Section
M. Mirea, L. Tassan-Got, C. Stephan +2
The structures observed in the sub-threshold neutron-induced fission of ^{232}Th were investigated employing a recent developed model. Theoretical single-particle excitations of a…
Fine structure of the 0.7 MeV resonance in the 230Th neutron--induced cross section
M. Mirea, Tassan-Got, C. Stephan +2
The fine structure of the 0.7 MeV resonance in the 230Th neutron-induced cross section is investigated within the hybrid model. A very good agreement with experimental data is obta…
Mid-infrared circumstellar emission of the long-period Cepheid l Carinae resolved with VLTI/MATISSE
V. Hocdé, N. Nardetto, A. Matter +149
The nature of circumstellar envelopes (CSE) around Cepheids is still a matter of debate. The physical origin of their infrared (IR) excess could be either a shell of ionized gas, o…
Evaporation residues produced in spallation of 208Pb by protons at 500A MeV
L. Audouin, L. Tassan-Got, P. Armbruster +20
The production cross sections of fragmentation-evaporation residues in the reaction Pb+p at 500A MeV have been measured using the inverse-kinematics method and the FRS spectrometer…
High contrast at short separation with VLTI/GRAVITY: Bringing Gaia companions to light
N. Pourré, T. O. Winterhalder, J. -B. Le Bouquin +173
Since 2019, GRAVITY has provided direct observations of giant planets and brown dwarfs at separations of down to 95 mas from the host star. Some of these observations have provided…
Production of medium-mass neutron-rich nuclei in reactions induced by 136Xe projectiles at 1 A GeV on a beryllium target
J. Benlliure, M. Fernandez-Ordonez, L. Audouin +20
Production cross sections of medium-mass neutron-rich nuclei obtained in the fragmentation of 136Xe projectiles at 1 A GeV have been measured with the FRagment Separator (FRS) at G…
Cross-sections of spallation residues produced in 1.A GeV 208Pb on proton reactions
W. Wlazlo, T. Enqvist, P. Armbruster +14
Spallation residues produced in 1 GeV per nucleon Pb on proton reactions have been studied using the FRagment Separator facility at GSI. Isotopic produc- tion cross-section…
The asymmetric inner disk of the Herbig Ae star HD 163296 in the eyes of VLTI/MATISSE: evidence for a vortex?
J. Varga, M. Hogerheijde, R. van Boekel +133
Context. The inner few au region of planet-forming disks is a complex environment. High angular resolution observations have a key role in understanding the disk structure and the…
Measurement of nuclide cross-sections of spallation residues in 1 A GeV 238U + proton collisions
J. Taieb, K. -H. Schmidt, L. Tassan-Got +15
The production of heavy nuclides from the spallation-evaporation reaction of 238U induced by 1 GeV protons was studied in inverse kinematics. The evaporation residues from tungsten…
MATISSE, the VLTI mid-infrared imaging spectro-interferometer
B. Lopez, S. Lagarde, R. G. Petrov +150
Context:Optical interferometry is at a key development stage. ESO's VLTI has established a stable, robust infrastructure for long-baseline interferometry for general astronomical o…
Recoil spectrometers for heavy-ion identification and secondary-beam production: pushing the low-energy limit
L. Audouin, L. Tassan-Got, P. Armbruster +3
The feasibility of low-energy fragmentation experiments using a magnetic spectrometer is discussed. The main challenge is the multiplicity of the ionic charge states, which can ham…
Measurement and analysis of the Am-243 neutron capture cross section at the n_TOF facility at CERN
TOF Collaboration, E. Mendoza, D. Cano-Ott +129
Background:The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Reduce the $…
Spallation Residues in the Reaction 56Fe + p at 0.3, 0.5, 0.75, 1.0 and 1.5 A GeV
C. Villagrasa-Canton, A. Boudard, J. -E. Ducret +35
The spallation residues produced in the bombardment of 56}Fe at 1.5, 1.0, 0.75, 0.5 and 0.3 A GeV on a liquid-hydrogen target have been measured using the reverse kinematics techni…
Experimental investigation of the residues produced in the 136Xe+Pb and 124Xe+Pb fragmentation reactions at 1 A GeV
D. Henzlova, K. -H. Schmidt, M. V. Ricciardi +26
This paper presents the nuclide cross sections and the longitudinal velocity distributions of residues produced in the reactions of 136Xe and 124Xe at 1 A GeV in a lead target, mea…
Measurement of a complete set of nuclides, cross-sections and kinetic energies in spallation of 238U 1A GeV with protons
P. Armbruster, J. Benlliure, M. Bernas +14
Spallation residues and fission fragments from 1A GeV 238U projectiles irradiating a liquid hydrogen target were investigated by using the FRagment Separator at GSI for magnetic se…
Isotopic and velocity distributions of Bi produced in charge-pickup reactions of 208Pb at 1 A GeV
A. Kelic, K. -H. Schmidt, T. Enqvist +15
Isotopically resolved cross sections and velocity distributions have been measured in charge-pickup reactions of 1 A GeV 208Pb with proton, deuterium and titanium target. The total…
Measurement of the complete nuclide production and kinetic energies of the system 136Xe + hydrogen at 1 GeV per nucleon
P. Napolitani, K. -H. Schmidt, L. Tassan-Got +24
We present an extensive overview of production cross sections and kinetic energies for the complete set of nuclides formed in the spallation of 136Xe by protons at the incident ene…