SUPER HEAVY ELEMENT DEFINITION SOFTWARE

SUPER HEAVY ELEMENT DEFINITION SOFTWARE

H gas fill, TOF analysis, veto detector, beam off time measurements Software analysis higher survival probability 76Se +238U (SPIRAL) 64Ni + 248Cm312124(DUBNA) RNB: 132Sn close to the shells Z=50 and N = 82 160Gd(132Sn,n)291114 at1p♚ and cross-section of order of 10 pbġ5 Dubna GFRS separation and detector system: Inverse fission: nuclei close in charge and mass to the most probable cold fission fragments of the SHE may have enhanced fusion caused by shell structure properties Heavy projectiles: higher Coulomb barrier but lower excitation, i.e.

Means that collective nuclear motion from the contact configuration of 86Kr and 136Xe (both stable isotopes) to the saddle point of 222Th follows a shorter path compared to the case of 216Th( 130Xe+86Kr), which undergoes mainly symmetric fission. 130Xe instead of 136Xe causes a decrease in σ for fusion-fission by almost 3 orders of magnitude. 124,132Sn + 64Ni, sub-barrier cross section increased for n rich double magic projectileġ3 Possible stable beams: Inverse fission consideration (Oganessian EPJ2002)įusion of the most probable cold 222Th fission fragment pair 86Kr+136Xe provides 3 orders of magnitude higher cross section at Ex~20 than other partners.

Sub barrier contributions are coming from transfer and break-up. Reduction of RNB intensities should be compensated by increased cross section In halo nuclei induced fusion 6He+ 238U enhancement of fusion cross section not found. The differences in fission barrier predictions influence the survivability of CN, thus also the cross sections MM model expected formation cross sections of the nuclei with Z=118 are rather lower than those of the isotopes of proton shell element 114 Moving towards the proton shell 124 or 126 according to other models, on the contrary, results in higher cross sections of xn-evaporation channels. The uncertainty of energy more than 1 MeV, Т varies by more than two orders of magnitude. These disagreements will show out in predicting the decay properties of elements with Z118. Produced n-sufficient nuclei, short unknown chains, fissile ending nucleiĦ Cold Fusion: Signature of 112 (Darmstadt )Ĭonfirmation by observing the decay pattern of 114 made in Ca+Pu, in decay of 116 made in Ca+CmĨ Odd Z nuclei decay chains in Dubna experimentsġ0 Z=118 predictions MM (Zshell=114) , HFB (Zshell=124, 126), and RMF (Zshell=120) model calculations point at the existence of the closed spherical shell at N=184 (or 182) however, they are at variance in predicting the proton shell.

Produced n-deficient SHE, long known chains and ending nuclei Hot fusion provides lower Coulomb barrier, but higher excitation. LD fission barrier up to Z=106 Shell effects for Z>106 Nshell=162 Zshell=108 experimentally confirmed Nshell~184 Zshell=114Ĥ Production Methods Z>100 needs : accelerator technologyĪtom per atom identification according to of the characteristics nuclear decay cross sections depend on Z1Z2 at formation and Ex at survival Cold fusion provides lower excitation due to the shell effects of Pb target but higher Coulomb repulsion.

Super heavy element definition