Fast trajectory reconstruction techniques for the large acceptance magnetic spectrometer VAMOS++

Abstract

The large angular and momentum acceptance magnetic spectrometer VAMOS++, at GANIL, France, is frequently used for nuclear structure and reaction dynamics studies. It provides an event-by-event identification of heavy ions produced in nuclear reactions at beam energies around the Coulomb barrier. The highly non-linear ion optics of VAMOS++ requires the use of the heavy ion trajectory reconstruction methods in the spectrometer to obtain the high-resolution definition of the measured atomic mass number. Three different trajectory reconstruction methods, developed and used for VAMOS++, are presented in this work. The performances obtained, in terms of resolution of reconstructed atomic mass number, are demonstrated and discussed using a single data-set of fission fragments detected in the spectrometer.

Accepted for publication in Nuclear Instruments and Methods in Physics Research Section A

References in corpus (9)

• Evidence for coexisting shapes in ${}^{98}$Zr through lifetime measurements
• Discovery of a new isomeric state in ${}^{68}$Ni: Evidence for a highly-deformed proton intruder state
• Migration of nuclear shell gaps studied in the d(24Ne,p gamma)25Ne reaction
• Scission configuration of ${}^{239}$U from yields and kinetic information of fission fragments
• Lifetime measurements in ${}^{63}$Co and ${}^{65}$Co
• Effects of one valence proton on seniority and angular momentum of neutrons in neutron-rich ${}^{122-131}$Sb${}_{51}$ isotopes
• Deformed band structures in neutron-rich ${}^{152-158}$Pm isotopes
• Pseudo spin doublet bands and Gallagher Moszkowski doublet bands in ${}^{100}$Y
• Prompt-delayed $\gamma$-ray spectroscopy of neutron-rich ${}^{119,121}$In isotopes

Cited by in corpus (5)

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• Analysis of Atomic Charge State and Atomic Number for VAMOS++ Magnetic Spectrometer using Deep Neural Networks and Fractionally Labelled Events
• Seven-dimensional Trajectory Reconstruction for VAMOS++
• Mirror nucleon-transfer reactions from ${}^{18}$Ne and ${}^{18}$O
• Isotopic fission yields of ${}^{240}$Pu as a function of the excitation energy