Estimate of enhancements in sub-barrier heavy-ion fusion cross sections due to coupling to inelastic and transfer reaction channels

1983 ◽  
Vol 133 (1-2) ◽  
pp. 34-38 ◽  
Author(s):  
R.A. Broglia ◽  
C.H. Dasso ◽  
S. Landowne ◽  
G. Pollarolo
Keyword(s):  
Cross Sections ◽  
Transfer Reaction ◽  
Heavy Ion ◽  
Reaction Channels ◽  
Heavy Ion Fusion

Heavy-ion fusion cross sections

1975 ◽  
Vol 248 (2) ◽  
pp. 356-376 ◽  
Author(s):  
R. Broda ◽  
M. Ishihara ◽  
B. Herskind ◽  
H. Oeschler ◽  
S. Ogaza ◽  
...  
Keyword(s):  
Cross Sections ◽  
Heavy Ion ◽  
Heavy Ion Fusion

Unexpected Behavior of Heavy-Ion Fusion Cross Sections at Extreme Sub-Barrier Energies

2002 ◽  
Vol 89 (5) ◽  
Author(s):  
C. L. Jiang ◽  
H. Esbensen ◽  
K. E. Rehm ◽  
B. B. Back ◽  
R. V. F. Janssens ◽  
...  
Keyword(s):  
Cross Sections ◽  
Heavy Ion ◽  
Heavy Ion Fusion ◽  
Unexpected Behavior

Analysis of fragment distribution and associated effects in 12,13C induced reactions

2014 ◽  
Vol 23 (05) ◽  
pp. 1450030
Author(s):  
Manpreet Kaur ◽  
Mahesh K. Sharma ◽  
Manoj K. Sharma
Keyword(s):  
Cross Sections ◽  
Heavy Ion ◽  
Evaporation Residue ◽  
Incomplete Fusion ◽  
Cluster Decay ◽  
Weakly Bound ◽  
Wide Range ◽  
Reaction Channels ◽  
Nice Agreement ◽  
Fragment Distribution

The decay of 220 Ra * nucleus formed in two different entrance channels 12 C +208 Pb and 13 C +207 Pb is investigated over a wide range of incident energies using the dynamical cluster decay model (DCM). The DCM is a non-statistical model used to account for the decay of hot and rotating nuclei formed in low energy heavy ion reactions. The excitation functions are calculated by considering quadrupole (β2) deformations with optimum orientations [Formula: see text] of decaying fragments. The DCM-based cross-sections for evaporation residue (ER), fusion–fission, αxn and neutron decay processes find nice agreement with the reported experimental data over wide range of incident energies. The cross-sections corresponding to different decay mechanism are worked out within DCM by fitting neck length parameter (ΔR). The entrance channel and angular momentum effects are investigated in reference to the above-mentioned reaction channels. In addition to this, the fragment mass distribution is worked out by colliding 13 C weakly bound stable projectile with a variety of target nuclei resulting in 13 C +159 Tb , 13 C +181 Ta and 13 C +207 Pb reactions. At comparable projectile energies, the increase in target mass is shown to favor asymmetric fragmentation in the fissioning region. Besides this, the incomplete fusion (ICF) contribution is worked out for 12 C and 13 C channels by applying necessary energy corrections in the framework of DCM.

MEAN-FIELD DESCRIPTION OF HEAVY-ION COLLISIONS

2004 ◽  
Vol 13 (01) ◽  
pp. 309-313 ◽  
Author(s):  
A. DOBROWOLSKI ◽  
K. POMORSKI ◽  
J. BARTEL
Keyword(s):  
Cross Sections ◽  
Sampling Method ◽  
Mean Field ◽  
Surface Friction ◽  
Monte Carlo Sampling ◽  
Heavy Ion ◽  
Nucleon Nucleon ◽  
Friction Model ◽  
Ion Collisions ◽  
Heavy Ion Fusion

Using the collective potential between colliding ions based on the effective nucleon-nucleon interactions of the Skyrme type and the semi-classical Extended Thomas-Fermi approach we describe heavy-ion fusion cross sections applying a Monte-Carlo sampling method of trajectories with the Langevin formalism using friction as described in the so-called Surface-Friction Model.

scholarly journals Charge-changing ion–ion collisions in heavy ion fusion

2002 ◽  
Vol 20 (3) ◽  
pp. 493-495 ◽  
Author(s):  
H. BRÄUNING ◽  
A. DIEHL ◽  
K.v. DIEMAR ◽  
A. THEIß ◽  
R. TRASSL ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Cross Sections ◽  
Center Of Mass ◽  
Heavy Ion ◽  
Center Of Mass Energy ◽  
Ion Collisions ◽  
Intrabeam Scattering ◽  
Singly Charged ◽  
Heavy Ion Fusion ◽  
And Storage

In heavy ion fusion, the compression of the DT pellet requires high intensity beams of ions in the gigaelectron volt energy range. Charge-changing collisions due to intrabeam scattering can have a high impact on the design of adequate accelerator and storage rings. Not only do intensity losses have to be taken into account, but also the deposition of energy on the beam lines after bending magnets, for example, may be nonnegligible. The center-of-mass energy for these intrabeam collisions is typically in the kiloelectron volt range for beam energies in the order of several gigaelectron volts. In this article, we present experimental cross sections for charge transfer and ionization in homonuclear collisions of Ar4+, Kr4+, and Xe4+, and for charge transfer only in homonuclear collisions of Pb4+ and Bi4+. Using a hypothetical 100-Tm synchrotron as an example, expected particle losses are calculated based on the experimental data. The results are compared with expectations for singly charged Bi+ ions, which are usually considered for heavy ion fusion.

Effect of the entrance channel mass asymmetry on the limitation of light heavy-ion fusion cross sections

1990 ◽  
Vol 42 (1) ◽  
pp. 354-362 ◽  
Author(s):  
R. M. Anjos ◽  
V. Guimares ◽  
N. Added ◽  
N. Carlin Filho ◽  
M. M. Coimbra ◽  
...  
Keyword(s):  
Cross Sections ◽  
Heavy Ion ◽  
Entrance Channel ◽  
Mass Asymmetry ◽  
Heavy Ion Fusion
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