THE ENERGY DEPENDENCE FOR REACTION CROSS SECTIONS OF ION-MOLECULE REACTIONS OF SOME PENTYL AND CYCLOPENTYL HALIDES1

1963 ◽  
Vol 67 (8) ◽  
pp. 1709-1712 ◽  
Author(s):  
Andrée J. Lorquet ◽  
William H. Hamill
Keyword(s):  
Energy Dependence ◽  
Cross Sections ◽  
Reaction Cross ◽  
Ion Molecule Reactions ◽  
Reaction Cross Sections

Microscopic analysis of the energy dependence of the 6He, 6Li + 28Si total reaction cross sections in the energy range E = 5−50 A MeV

2008 ◽  
Vol 72 (3) ◽  
pp. 356-360
Author(s):  
K. V. Lukyanov ◽  
E. V. Zemlyanaya ◽  
V. K. Lukyanov ◽  
I. N. Kukhtina ◽  
Yu. E. Penionzhkevich ◽  
...  
Keyword(s):  
Energy Range ◽  
Energy Dependence ◽  
Cross Sections ◽  
Microscopic Analysis ◽  
Reaction Cross ◽  
Total Reaction ◽  
Reaction Cross Sections

CONCURRENT ION–MOLECULE REACTIONS LEADING TO THE SAME PRODUCTION

1962 ◽  
Vol 40 (10) ◽  
pp. 1986-1996 ◽  
Author(s):  
A. G. Harrison ◽  
J. M. S. Tait
Keyword(s):  
High Pressure ◽  
Mass Spectrum ◽  
Cross Sections ◽  
Reaction Cross ◽  
Ion Molecule Reactions ◽  
Secondary Ions ◽  
Primary Ions ◽  
Reaction Cross Sections

Seven of the major secondary ions in the high-pressure mass spectrum of cyclopropane have been studied. A method has been developed for studying concurrent ion–molecule reactions and it has been shown that four of the secondary ions are the products of more than one reaction. Cross sections for the separate reactions are reported. The appearance potentials of the major primary ions in the mass spectrum of cyclopropane have been measured.

Ion-molecule reactions in methylene fluoride

1971 ◽  
Vol 24 (8) ◽  
pp. 1611 ◽  
Author(s):  
AG Harrison ◽  
NA McAskill
Keyword(s):  
Cross Sections ◽  
Ion Trap ◽  
Proton Transfer Reaction ◽  
Reaction Cross ◽  
Ion Source ◽  
Rate Coefficients ◽  
Main Reaction ◽  
Mass Spectrometers ◽  
Ion Molecule Reactions ◽  
Reaction Cross Sections

The ion-molecule reactions of CH2F2 in the gas phase were studied using two mass spectrometers, one fitted with a medium-pressure ion source and the other with an ion-trap source. The main reaction was the formation of CH2F+ from CHF2+. The molecular ion and its proton transfer reaction forming CH3F2+ were of lesser importance. The only condensation ion formed was C2H4F3+. Reaction cross sections and rate coefficients for a number of ions at exit energies of 0.2-3.3 eV were measured.

Energy dependence of (p,t)-reaction cross-sections

1974 ◽  
Vol 11 (4) ◽  
pp. 293-297 ◽  
Author(s):  
H. Toki ◽  
M. Sano ◽  
H. Orihara ◽  
Y. Ishizaki
Keyword(s):  
Energy Dependence ◽  
Cross Sections ◽  
Reaction Cross ◽  
Reaction Cross Sections

scholarly journals CROSS-SECTIONS IN PHOTONUCLEAR REACTIONS WITH MULTIPLE NEUTRON EMISSION

2019 ◽  
pp. 144-148
Author(s):  
O.A. Bezshyyko ◽  
O.M. Vodin ◽  
L.O. Golinka-Bezshyyko ◽  
A.V. Kotenko ◽  
V.A. Kushnir ◽  
...  
Keyword(s):  
Energy Dependence ◽  
Cross Sections ◽  
Neutron Emission ◽  
Reaction Cross ◽  
Photonuclear Reactions ◽  
Level Densities ◽  
Relative Contribution ◽  
Dipole Resonance ◽  
Talys 1.8 Code ◽  
Reaction Cross Sections

The energy dependence of the reaction cross-sections A(γ,xn)(A-xn) was studied in the energy range 19...70 MeV, i.e. beyond Great Dipole Resonance (GDR) region. Experimental data were taken from international database EXFOR for range of nuclear mases (55 < A < 209). Theoretical values of cross sections were obtained using TALYS-1.8 code. Several models of level densities with both enabled and disabled pre-equilibrium mechanism were considered in our simulations. Obtained results let us to make conclusions about different mechanisms of photonuclear reactions on certain nuclei, energy dependence of their relative contribution.

Ion-molecule reactions of methyl fluoride and methylene chloride

1970 ◽  
Vol 23 (11) ◽  
pp. 2301 ◽  
Author(s):  
NA McAskill
Keyword(s):  
High Pressure ◽  
Gas Phase ◽  
Mass Spectrometer ◽  
Cross Sections ◽  
Main Product ◽  
Methylene Chloride ◽  
Reaction Cross ◽  
Rate Coefficients ◽  
Ion Molecule Reactions ◽  
Reaction Cross Sections

The ion-molecule reactions of CH3F and CH2Cl2 were examined in the gas phase using a high-pressure mass spectrometer. The ionic products of CH3F were mainly CH2F+, C2H6F+, and CH4F+. In the CH2Cl2 system the main product was CHCl2+ together with smaller amounts of CH2Cl+, CH3Cl2+, and several condensation ions. The ionic reactivity of the two compounds was compared to that of other halomethanes. Rate coefficients and reaction cross sections for many primary reactant ions were measured as a function of the ion exit energy.

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