Ion Kinetic Effect on Fusion Reaction Rate

1989 ◽  
Vol 28 (Part 1, No. 10) ◽  
pp. 2004-2010 ◽  
Author(s):  
Takeshi Nishikawa ◽  
Hideaki Takabe ◽  
Kunioki Mima
Keyword(s):  
Reaction Rate ◽  
Fusion Reaction ◽  
Kinetic Effect

scholarly journals Phenomenological Inferences on the Kinetics of a Mechanically Activated Knoevenagel Condensation: Understanding the “Snowball” Kinetic Effect in Ball Milling

Molecules ◽  
2019 ◽  
Vol 24 (19) ◽  
pp. 3600 ◽  
Author(s):  
Maria Carta ◽  
Stuart L. James ◽  
Francesco Delogu
Keyword(s):  
Reaction Rate ◽  
Polyvinyl Acetate ◽  
Coating Layer ◽  
Knoevenagel Condensation ◽  
Kinetic Effect ◽  
The Third ◽  
Sigmoidal Kinetics ◽  
Experimental Findings ◽  
Kinetics Of ◽  
Layer Coating

We focus on understanding the kinetics of a mechanically activated Knoevenagel condensation conducted in a ball mill, that is characterized by sigmoidal kinetics and the formation of a rubber-like cohesive intermediate state coating the milling ball. The previously described experimental findings are explained using a phenomenological kinetic model. It is assumed that reactants transform into products already at the very first collision of the ball with the wall of the jar. The portion of reactants that are transformed into products during each oscillation is taken to be a fraction of the amount of material that is trapped between the ball and the wall of the jar. This quantity is greater when the reaction mixture transforms from its initial powder form to the rubber-like cohesive coating on the ball. Further, the amount of reactants processed in each collision varies proportionally with the total area of the layer coating the ball. The total area of this coating layer is predicted to vary with the third power of time, thus accounting for the observed dramatic increase of the reaction rate. Supporting experiments, performed using a polyvinyl acetate adhesive as a nonreactive but cohesive material, confirm that the coating around the ball grows with the third power of time.

On the enhancement of p-11B fusion reaction rate in laser-driven plasma by α → p collisional energy transfer

2018 ◽  
Vol 25 (2) ◽  
pp. 020701 ◽  
Author(s):  
Fabio Belloni ◽  
Daniele Margarone ◽  
Antonino Picciotto ◽  
Francesco Schillaci ◽  
Lorenzo Giuffrida
Keyword(s):  
Energy Transfer ◽  
Reaction Rate ◽  
Fusion Reaction ◽  
Collisional Energy ◽  
Collisional Energy Transfer

scholarly journals Neutron detector for fusion reaction-rate measurements

1993 ◽  
Author(s):  
Richard A. Lerche ◽  
D. W. Phillion ◽  
Gregory L. Tietbohl
Keyword(s):  
Neutron Detector ◽  
Reaction Rate ◽  
Fusion Reaction

FUSION RATE IN μtt IN MUONIC MOLECULAR ION USING LINEAR COMBINATION OF ATOMIC ORBITAL METHOD

2011 ◽  
Vol 20 (03) ◽  
pp. 629-636
Author(s):  
M. MAHDAVI ◽  
B. KALEJI ◽  
T. KOOHROKHI
Keyword(s):  
Reaction Rate ◽  
Transition Probability ◽  
Atomic Orbital ◽  
Fusion Reaction ◽  
Fusion Cross Section ◽  
Nuclear Interaction ◽  
Fusion Rate ◽  
Nuclear Potential ◽  
Orbital Method ◽  
Molecular Ion

In this paper, the tritium–tritium fusion reaction rate in a muonic molecular ion (μtt) is calculated by using a square-well nuclear potential as a complex for nuclear interaction between two tritones. The complex potential parameters are obtained by fitting process on fusion cross-section experimental data. The real and imaginary parts of the nuclear potential are calculated as Ur = -62531.87 (keV) and Ui = -165.63 (keV), respectively. A free parameter that is related to the radius of this potential is A = 0.004155. Also, considering the optical nuclear potential, the energy value of μtt muonic molecular ion is calculated. The fusion rate is calculated by liner combination of atomic orbital (LCAO) method. Finally, the reaction rate, λ, is obtained 0.28×1010 s -1 by calculating the transition probability through the potential barrier and the oscillation frequency of wave function.

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