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FLEROV
LABORATORY of NUCLEAR REACTIONS

Founded on May 20, 1957



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Address your questions to:
ludmila@jinr.ru

EXPERIMENTAL SETUPS

    "MSP-144" magnetic analyser

    MSP-144 magnetic analyser is intended for separation of elastically scattered ion beams, reaction products efficient accumulation and distribution in compliance with A mass dispersion and q charge with appropriate resolution (Δp/p) [more...]

    MSP-144 magnetic analyser

    MSP-144 magnetic analyser



    TECHNICAL PARAMETERS of MSP-144
    Gap of 1st dipole region (mm) 47
    Gap of 2nd dipole region (mm) 30
    Max. magnetic rigidity, Bρ (Tm) 1.5
    Focal line angle (deg) 41
    Relation of energy, Emax/Emin 5.2
    Energy resolution, ΔE/E 5 x 10-4
    Horizontal magnification Mhoriz 0.3
    Verticall magnification Mvert 2.7
    Radius R,m 1.25
    Solid Angle, msrad 5


    Using the MSP-144 magnetic analyzer structure and stability of very neutron-rich nuclei of the lightest elements (7-10He, 9-11Li, 12-14Be) as well as of their heavy isotopes were studied and binding energy of the latter determined. The data on 7,8,9He, 10,11Li, and 13Be nuclei energy levels were obtained for the first time.

    6He and 9Li secondary beams of 104 s-1 intensity were produced and used in the first experiments for measuring angular distributions of the 6He and 9Li ions elastically scattered from various target nuclei. Data on interaction radii of these nuclei were obtained for the first time. Later experiments on measurement of excitation functions for complete fusion reactions with subsequent evaporation of neutrons and fission in a wide energy range (10-70 MeV) were carried out with 6He beams of the DRIBs acceleration complex using the MSP-144 spectrometer. The results of these experiments for the first time indicated the possibility of deep sub-barrier fusion of 6He (neutron halo nucleus) with other heavy nuclei.

    In 2018 MAVR new magnetic analyzer based on the the MSP-144 spectrometer magnet is to be put into operation. That with upgraded U400R cyclotron and DRIBs III acceleration complex beams of radioactive nuclei rise studies of nuclear reaction characteristics to the new higher experimental level.



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